首页 > 最新文献

Frontiers in Robotics and AI最新文献

英文 中文
Active learning strategies for robotic tactile texture recognition tasks 机器人触觉纹理识别任务的主动学习策略
Pub Date : 2024-02-06 DOI: 10.3389/frobt.2024.1281060
Shemonto Das, Vinicius Prado da Fonseca, Amilcar Soares
Accurate texture classification empowers robots to improve their perception and comprehension of the environment, enabling informed decision-making and appropriate responses to diverse materials and surfaces. Still, there are challenges for texture classification regarding the vast amount of time series data generated from robots’ sensors. For instance, robots are anticipated to leverage human feedback during interactions with the environment, particularly in cases of misclassification or uncertainty. With the diversity of objects and textures in daily activities, Active Learning (AL) can be employed to minimize the number of samples the robot needs to request from humans, streamlining the learning process. In the present work, we use AL to select the most informative samples for annotation, thus reducing the human labeling effort required to achieve high performance for classifying textures. We also use a sliding window strategy for extracting features from the sensor’s time series used in our experiments. Our multi-class dataset (e.g., 12 textures) challenges traditional AL strategies since standard techniques cannot control the number of instances per class selected to be labeled. Therefore, we propose a novel class-balancing instance selection algorithm that we integrate with standard AL strategies. Moreover, we evaluate the effect of sliding windows of two-time intervals (3 and 6 s) on our AL Strategies. Finally, we analyze in our experiments the performance of AL strategies, with and without the balancing algorithm, regarding f1-score, and positive effects are observed in terms of performance when using our proposed data pipeline. Our results show that the training data can be reduced to 70% using an AL strategy regardless of the machine learning model and reach, and in many cases, surpass a baseline performance. Finally, exploring the textures with a 6-s window achieves the best performance, and using either Extra Trees produces an average f1-score of 90.21% in the texture classification data set.
准确的纹理分类有助于机器人提高对环境的感知和理解能力,从而做出明智的决策,并对不同的材料和表面做出适当的反应。然而,从机器人传感器生成的大量时间序列数据来看,纹理分类仍面临挑战。例如,预计机器人在与环境互动时会利用人类的反馈,特别是在分类错误或不确定的情况下。由于日常活动中的物体和纹理多种多样,因此可以采用主动学习(AL)来尽量减少机器人需要向人类请求的样本数量,从而简化学习过程。在本作品中,我们利用主动学习技术选择信息量最大的样本进行标注,从而减少了人工标注的工作量,实现了纹理分类的高性能。我们还使用滑动窗口策略从实验中使用的传感器时间序列中提取特征。我们的多类数据集(例如 12 种纹理)对传统的 AL 策略提出了挑战,因为标准技术无法控制每个类别中需要标记的实例数量。因此,我们提出了一种新颖的类平衡实例选择算法,并将其与标准 AL 策略相结合。此外,我们还评估了两个时间间隔(3 秒和 6 秒)的滑动窗口对我们的 AL 策略的影响。最后,我们在实验中分析了使用和不使用平衡算法的 AL 策略在 f1 分数方面的性能,并观察到使用我们提出的数据管道对性能的积极影响。我们的结果表明,无论采用哪种机器学习模型,使用 AL 策略都能将训练数据减少到 70%,并达到基准性能,在很多情况下甚至超过基准性能。最后,在纹理分类数据集中,使用 6 秒窗口探索纹理取得了最佳性能,使用 Extra Trees 的平均 f1 分数为 90.21%。
{"title":"Active learning strategies for robotic tactile texture recognition tasks","authors":"Shemonto Das, Vinicius Prado da Fonseca, Amilcar Soares","doi":"10.3389/frobt.2024.1281060","DOIUrl":"https://doi.org/10.3389/frobt.2024.1281060","url":null,"abstract":"Accurate texture classification empowers robots to improve their perception and comprehension of the environment, enabling informed decision-making and appropriate responses to diverse materials and surfaces. Still, there are challenges for texture classification regarding the vast amount of time series data generated from robots’ sensors. For instance, robots are anticipated to leverage human feedback during interactions with the environment, particularly in cases of misclassification or uncertainty. With the diversity of objects and textures in daily activities, Active Learning (AL) can be employed to minimize the number of samples the robot needs to request from humans, streamlining the learning process. In the present work, we use AL to select the most informative samples for annotation, thus reducing the human labeling effort required to achieve high performance for classifying textures. We also use a sliding window strategy for extracting features from the sensor’s time series used in our experiments. Our multi-class dataset (e.g., 12 textures) challenges traditional AL strategies since standard techniques cannot control the number of instances per class selected to be labeled. Therefore, we propose a novel class-balancing instance selection algorithm that we integrate with standard AL strategies. Moreover, we evaluate the effect of sliding windows of two-time intervals (3 and 6 s) on our AL Strategies. Finally, we analyze in our experiments the performance of AL strategies, with and without the balancing algorithm, regarding f1-score, and positive effects are observed in terms of performance when using our proposed data pipeline. Our results show that the training data can be reduced to 70% using an AL strategy regardless of the machine learning model and reach, and in many cases, surpass a baseline performance. Finally, exploring the textures with a 6-s window achieves the best performance, and using either Extra Trees produces an average f1-score of 90.21% in the texture classification data set.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"322 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139858428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementation and analysis of a parallel kalman filter algorithm for lidar localization based on CUDA technology 基于 CUDA 技术的激光雷达定位并行卡尔曼滤波算法的实现与分析
Pub Date : 2024-02-02 DOI: 10.3389/frobt.2024.1341689
L. Mochurad
Introduction: Navigation satellite systems can fail to work or work incorrectly in a number of conditions: signal shadowing, electromagnetic interference, atmospheric conditions, and technical problems. All of these factors can significantly affect the localization accuracy of autonomous driving systems. This emphasizes the need for other localization technologies, such as Lidar. Methods: The use of the Kalman filter in combination with Lidar can be very effective in various applications due to the synergy of their capabilities. The Kalman filter can improve the accuracy of lidar measurements by taking into account the noise and inaccuracies present in the measurements. Results: In this paper, we propose a parallel Kalman algorithm in three-dimensional space to speed up the computational speed of Lidar localization. At the same time, the initial localization accuracy of the latter is preserved. A distinctive feature of the proposed approach is that the Kalman localization algorithm itself is parallelized, rather than the process of building a map for navigation. The proposed algorithm allows us to obtain the result 3.8 times faster without compromising the localization accuracy, which was 3% for both cases, making it effective for real-time decision-making. Discussion: The reliability of this result is confirmed by a preliminary theoretical estimate of the acceleration rate based on Ambdahl’s law. Accelerating the Kalman filter with CUDA for Lidar localization can be of significant practical value, especially in real-time and in conditions where large amounts of data from Lidar sensors need to be processed.
导言:导航卫星系统在多种情况下可能无法工作或工作不正确:信号阴影、电磁干扰、大气条件和技术问题。所有这些因素都会严重影响自动驾驶系统的定位精度。这就强调了对激光雷达等其他定位技术的需求。方法卡尔曼滤波器与激光雷达的结合使用在各种应用中都非常有效,这是因为二者的功能具有协同作用。卡尔曼滤波器可以考虑到测量中存在的噪声和不准确性,从而提高激光雷达测量的准确性。结果本文提出了一种三维空间并行卡尔曼算法,以加快激光雷达定位的计算速度。同时,保留了后者的初始定位精度。所提方法的一个显著特点是卡尔曼定位算法本身的并行化,而不是建立导航地图的过程。在不影响定位精度(两种情况都是 3%)的情况下,所提出的算法可使我们获得结果的速度提高 3.8 倍,从而使其在实时决策中发挥有效作用。讨论根据安姆达尔定律对加速率进行的初步理论估算证实了这一结果的可靠性。利用 CUDA 加速卡尔曼滤波器进行激光雷达定位具有重要的实用价值,尤其是在需要实时处理激光雷达传感器的大量数据的情况下。
{"title":"Implementation and analysis of a parallel kalman filter algorithm for lidar localization based on CUDA technology","authors":"L. Mochurad","doi":"10.3389/frobt.2024.1341689","DOIUrl":"https://doi.org/10.3389/frobt.2024.1341689","url":null,"abstract":"Introduction: Navigation satellite systems can fail to work or work incorrectly in a number of conditions: signal shadowing, electromagnetic interference, atmospheric conditions, and technical problems. All of these factors can significantly affect the localization accuracy of autonomous driving systems. This emphasizes the need for other localization technologies, such as Lidar. Methods: The use of the Kalman filter in combination with Lidar can be very effective in various applications due to the synergy of their capabilities. The Kalman filter can improve the accuracy of lidar measurements by taking into account the noise and inaccuracies present in the measurements. Results: In this paper, we propose a parallel Kalman algorithm in three-dimensional space to speed up the computational speed of Lidar localization. At the same time, the initial localization accuracy of the latter is preserved. A distinctive feature of the proposed approach is that the Kalman localization algorithm itself is parallelized, rather than the process of building a map for navigation. The proposed algorithm allows us to obtain the result 3.8 times faster without compromising the localization accuracy, which was 3% for both cases, making it effective for real-time decision-making. Discussion: The reliability of this result is confirmed by a preliminary theoretical estimate of the acceleration rate based on Ambdahl’s law. Accelerating the Kalman filter with CUDA for Lidar localization can be of significant practical value, especially in real-time and in conditions where large amounts of data from Lidar sensors need to be processed.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"9 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139870297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementation and analysis of a parallel kalman filter algorithm for lidar localization based on CUDA technology 基于 CUDA 技术的激光雷达定位并行卡尔曼滤波算法的实现与分析
Pub Date : 2024-02-02 DOI: 10.3389/frobt.2024.1341689
L. Mochurad
Introduction: Navigation satellite systems can fail to work or work incorrectly in a number of conditions: signal shadowing, electromagnetic interference, atmospheric conditions, and technical problems. All of these factors can significantly affect the localization accuracy of autonomous driving systems. This emphasizes the need for other localization technologies, such as Lidar. Methods: The use of the Kalman filter in combination with Lidar can be very effective in various applications due to the synergy of their capabilities. The Kalman filter can improve the accuracy of lidar measurements by taking into account the noise and inaccuracies present in the measurements. Results: In this paper, we propose a parallel Kalman algorithm in three-dimensional space to speed up the computational speed of Lidar localization. At the same time, the initial localization accuracy of the latter is preserved. A distinctive feature of the proposed approach is that the Kalman localization algorithm itself is parallelized, rather than the process of building a map for navigation. The proposed algorithm allows us to obtain the result 3.8 times faster without compromising the localization accuracy, which was 3% for both cases, making it effective for real-time decision-making. Discussion: The reliability of this result is confirmed by a preliminary theoretical estimate of the acceleration rate based on Ambdahl’s law. Accelerating the Kalman filter with CUDA for Lidar localization can be of significant practical value, especially in real-time and in conditions where large amounts of data from Lidar sensors need to be processed.
导言:导航卫星系统在多种情况下可能无法工作或工作不正确:信号阴影、电磁干扰、大气条件和技术问题。所有这些因素都会严重影响自动驾驶系统的定位精度。这就强调了对激光雷达等其他定位技术的需求。方法卡尔曼滤波器与激光雷达的结合使用在各种应用中都非常有效,这是因为二者的功能具有协同作用。卡尔曼滤波器可以考虑到测量中存在的噪声和不准确性,从而提高激光雷达测量的准确性。结果本文提出了一种三维空间并行卡尔曼算法,以加快激光雷达定位的计算速度。同时,保留了后者的初始定位精度。所提方法的一个显著特点是卡尔曼定位算法本身的并行化,而不是建立导航地图的过程。在不影响定位精度(两种情况都是 3%)的情况下,所提出的算法可使我们获得结果的速度提高 3.8 倍,从而使其在实时决策中发挥有效作用。讨论根据安姆达尔定律对加速率进行的初步理论估算证实了这一结果的可靠性。利用 CUDA 加速卡尔曼滤波器进行激光雷达定位具有重要的实用价值,尤其是在需要实时处理激光雷达传感器的大量数据的情况下。
{"title":"Implementation and analysis of a parallel kalman filter algorithm for lidar localization based on CUDA technology","authors":"L. Mochurad","doi":"10.3389/frobt.2024.1341689","DOIUrl":"https://doi.org/10.3389/frobt.2024.1341689","url":null,"abstract":"Introduction: Navigation satellite systems can fail to work or work incorrectly in a number of conditions: signal shadowing, electromagnetic interference, atmospheric conditions, and technical problems. All of these factors can significantly affect the localization accuracy of autonomous driving systems. This emphasizes the need for other localization technologies, such as Lidar. Methods: The use of the Kalman filter in combination with Lidar can be very effective in various applications due to the synergy of their capabilities. The Kalman filter can improve the accuracy of lidar measurements by taking into account the noise and inaccuracies present in the measurements. Results: In this paper, we propose a parallel Kalman algorithm in three-dimensional space to speed up the computational speed of Lidar localization. At the same time, the initial localization accuracy of the latter is preserved. A distinctive feature of the proposed approach is that the Kalman localization algorithm itself is parallelized, rather than the process of building a map for navigation. The proposed algorithm allows us to obtain the result 3.8 times faster without compromising the localization accuracy, which was 3% for both cases, making it effective for real-time decision-making. Discussion: The reliability of this result is confirmed by a preliminary theoretical estimate of the acceleration rate based on Ambdahl’s law. Accelerating the Kalman filter with CUDA for Lidar localization can be of significant practical value, especially in real-time and in conditions where large amounts of data from Lidar sensors need to be processed.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"7 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139810503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling of slip rate-dependent traversability for path planning of wheeled mobile robot in sandy terrain 沙质地形中轮式移动机器人路径规划中与滑移率相关的可穿越性建模
Pub Date : 2024-01-25 DOI: 10.3389/frobt.2024.1320261
Go Sakayori, G. Ishigami
A planetary exploration rover has been employed for scientific endeavors or as a precursor for upcoming manned missions. Predicting rover traversability from its wheel slip ensures safe and efficient autonomous operations of rovers on deformable planetary surfaces; path planning algorithms that reduce slips by considering wheel-soil interaction or terrain data can minimize the risk of the rover becoming immobilized. Understanding wheel-soil interaction in transient states is vital for developing a more precise slip ratio prediction model, while path planning in the past assumes that slips generated at the path is a series of slip ratio in steady state. In this paper, we focus on the transient slip, or slip rate the time derivative of slip ratio, to explicitly address it into the cost function of path planning algorithm. We elaborated a regression model that takes slip rate and traction force as inputs and outputs slip ratio, which is employed in the cost function to minimize the rover slip in path planning phase. Experiments using a single wheel testbed revealed that even with the same wheel traction force, the slip ratio varies with different slip rates; we confirmed that the smaller the absolute value of the slip rate, the larger the slip ratio for the same traction force. The statistical analysis of the regression model confirms that the model can estimate the slip ratio within an accuracy of 85% in average. The path planning simulation with the regression model confirmed a reduction of 58% slip experienced by the rover when driving through rough terrain environments. The dynamics simulation results insisted that the proposed method can reduce the slip rate in rough terrain environments.
行星探索漫游车已被用于科学研究或作为即将到来的载人飞行任务的先驱。通过车轮滑移来预测漫游车的可穿越性,可确保漫游车在可变形的行星表面上安全高效地自主运行;通过考虑车轮与土壤的相互作用或地形数据来减少滑移的路径规划算法,可将漫游车无法移动的风险降至最低。了解瞬态下车轮与土壤的相互作用对于开发更精确的滑移率预测模型至关重要,而过去的路径规划假设路径上产生的滑移是一系列稳定状态下的滑移率。本文重点关注瞬态滑移,即滑移率的时间导数,将其明确纳入路径规划算法的成本函数中。我们建立了一个回归模型,将滑移率和牵引力作为输入,并输出滑移率。使用单轮试验台进行的实验表明,即使车轮牵引力相同,滑移率也会随着滑移率的不同而变化;我们证实,在牵引力相同的情况下,滑移率的绝对值越小,滑移率就越大。对回归模型的统计分析证实,该模型对滑移率的估计精度平均在 85% 以内。利用回归模型进行的路径规划仿真证实,漫游车在崎岖地形环境中行驶时的滑移率降低了 58%。动力学仿真结果表明,所提出的方法可以降低崎岖地形环境中的滑移率。
{"title":"Modeling of slip rate-dependent traversability for path planning of wheeled mobile robot in sandy terrain","authors":"Go Sakayori, G. Ishigami","doi":"10.3389/frobt.2024.1320261","DOIUrl":"https://doi.org/10.3389/frobt.2024.1320261","url":null,"abstract":"A planetary exploration rover has been employed for scientific endeavors or as a precursor for upcoming manned missions. Predicting rover traversability from its wheel slip ensures safe and efficient autonomous operations of rovers on deformable planetary surfaces; path planning algorithms that reduce slips by considering wheel-soil interaction or terrain data can minimize the risk of the rover becoming immobilized. Understanding wheel-soil interaction in transient states is vital for developing a more precise slip ratio prediction model, while path planning in the past assumes that slips generated at the path is a series of slip ratio in steady state. In this paper, we focus on the transient slip, or slip rate the time derivative of slip ratio, to explicitly address it into the cost function of path planning algorithm. We elaborated a regression model that takes slip rate and traction force as inputs and outputs slip ratio, which is employed in the cost function to minimize the rover slip in path planning phase. Experiments using a single wheel testbed revealed that even with the same wheel traction force, the slip ratio varies with different slip rates; we confirmed that the smaller the absolute value of the slip rate, the larger the slip ratio for the same traction force. The statistical analysis of the regression model confirms that the model can estimate the slip ratio within an accuracy of 85% in average. The path planning simulation with the regression model confirmed a reduction of 58% slip experienced by the rover when driving through rough terrain environments. The dynamics simulation results insisted that the proposed method can reduce the slip rate in rough terrain environments.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"52 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139598945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Human movement modifications induced by different levels of transparency of an active upper limb exoskeleton 主动式上肢外骨骼的不同透明度对人体运动的影响
Pub Date : 2024-01-24 DOI: 10.3389/frobt.2024.1308958
Dorian Verdel, Anaïs Farr, Thibault Devienne, N. Vignais, B. Berret, Olivier Bruneau
Active upper limb exoskeletons are a potentially powerful tool for neuromotor rehabilitation. This potential depends on several basic control modes, one of them being transparency. In this control mode, the exoskeleton must follow the human movement without altering it, which theoretically implies null interaction efforts. Reaching high, albeit imperfect, levels of transparency requires both an adequate control method and an in-depth evaluation of the impacts of the exoskeleton on human movement. The present paper introduces such an evaluation for three different “transparent” controllers either based on an identification of the dynamics of the exoskeleton, or on force feedback control or on their combination. Therefore, these controllers are likely to induce clearly different levels of transparency by design. The conducted investigations could allow to better understand how humans adapt to transparent controllers, which are necessarily imperfect. A group of fourteen participants were subjected to these three controllers while performing reaching movements in a parasagittal plane. The subsequent analyses were conducted in terms of interaction efforts, kinematics, electromyographic signals and ergonomic feedback questionnaires. Results showed that, when subjected to less performing transparent controllers, participants strategies tended to induce relatively high interaction efforts, with higher muscle activity, which resulted in a small sensitivity of kinematic metrics. In other words, very different residual interaction efforts do not necessarily induce very different movement kinematics. Such a behavior could be explained by a natural human tendency to expend effort to preserve their preferred kinematics, which should be taken into account in future transparent controllers evaluation.
主动式上肢外骨骼是一种潜在的神经运动康复利器。这种潜力取决于几种基本控制模式,其中之一是透明模式。在这种控制模式下,外骨骼必须跟随人的运动而不做任何改变,这在理论上意味着无交互作用。要达到较高的透明度(尽管并不完美),既需要适当的控制方法,也需要深入评估外骨骼对人体运动的影响。本文介绍了对三种不同 "透明 "控制器的评估,它们或基于外骨骼动力学识别,或基于力反馈控制,或基于它们的组合。因此,这些控制器在设计上可能会产生明显不同的透明度。所进行的调查可以更好地了解人类如何适应透明控制器,而透明控制器必然是不完美的。一组 14 名参与者在进行矢状面伸手动作时使用了这三种控制器。随后从交互努力、运动学、肌电信号和人体工学反馈问卷等方面进行了分析。结果表明,在使用性能较差的透明控制器时,参与者的策略倾向于诱发相对较高的交互努力,肌肉活动较高,从而导致运动学指标的敏感性较小。换句话说,截然不同的剩余交互努力并不一定会导致截然不同的运动运动学。这种行为可以解释为人类为保持其偏好的运动学特性而付出努力的自然倾向,在未来对透明控制器进行评估时应考虑到这一点。
{"title":"Human movement modifications induced by different levels of transparency of an active upper limb exoskeleton","authors":"Dorian Verdel, Anaïs Farr, Thibault Devienne, N. Vignais, B. Berret, Olivier Bruneau","doi":"10.3389/frobt.2024.1308958","DOIUrl":"https://doi.org/10.3389/frobt.2024.1308958","url":null,"abstract":"Active upper limb exoskeletons are a potentially powerful tool for neuromotor rehabilitation. This potential depends on several basic control modes, one of them being transparency. In this control mode, the exoskeleton must follow the human movement without altering it, which theoretically implies null interaction efforts. Reaching high, albeit imperfect, levels of transparency requires both an adequate control method and an in-depth evaluation of the impacts of the exoskeleton on human movement. The present paper introduces such an evaluation for three different “transparent” controllers either based on an identification of the dynamics of the exoskeleton, or on force feedback control or on their combination. Therefore, these controllers are likely to induce clearly different levels of transparency by design. The conducted investigations could allow to better understand how humans adapt to transparent controllers, which are necessarily imperfect. A group of fourteen participants were subjected to these three controllers while performing reaching movements in a parasagittal plane. The subsequent analyses were conducted in terms of interaction efforts, kinematics, electromyographic signals and ergonomic feedback questionnaires. Results showed that, when subjected to less performing transparent controllers, participants strategies tended to induce relatively high interaction efforts, with higher muscle activity, which resulted in a small sensitivity of kinematic metrics. In other words, very different residual interaction efforts do not necessarily induce very different movement kinematics. Such a behavior could be explained by a natural human tendency to expend effort to preserve their preferred kinematics, which should be taken into account in future transparent controllers evaluation.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"48 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139599793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soft gripper for small fruits harvesting and pick and place operations 用于小型水果采摘和取放作业的软抓手
Pub Date : 2024-01-18 DOI: 10.3389/frobt.2023.1330496
E. Navas, R. Shamshiri, V. Dworak, Cornelia Weltzien, Roemi Fernández
Agriculture 4.0 presents several challenges for the automation of various operations, including the fundamental task of harvesting. One of the crucial aspects in the automatic harvesting of high value crops is the grip and detachment of delicate fruits without spoiling them or interfering with the environment. Soft robotic systems, particularly soft grippers, offer a promising solution for this problem, as they can operate in unstructured environments, manipulate objects delicately, and interact safely with humans. In this context, this article presents a soft gripper design for harvesting as well as for pick-and-place operations of small and medium-sized fruits. The gripper is fabricated using the 3D printing technology with a flexible thermoplastic elastomer filament. This approach enables the production of an economical, compact, easily replicable, and interchangeable gripper by utilizing soft robotics principles, such as flexible structures and pneumatic actuation.
农业 4.0 为各种操作的自动化带来了诸多挑战,其中包括收割这一基本任务。自动收获高价值作物的一个关键环节是抓取和分离娇嫩的水果,同时不损坏水果或干扰环境。软体机器人系统,特别是软体抓手,为这一问题提供了一个前景广阔的解决方案,因为它们可以在非结构化环境中运行,对物体进行精细操作,并能安全地与人类互动。在此背景下,本文介绍了一种软机械手的设计,用于中小型水果的收获和拾放操作。该机械手采用 3D 打印技术,使用柔性热塑性弹性纤维丝制造而成。这种方法利用软机器人原理(如柔性结构和气动驱动),能够制造出经济、紧凑、易于复制和可互换的抓手。
{"title":"Soft gripper for small fruits harvesting and pick and place operations","authors":"E. Navas, R. Shamshiri, V. Dworak, Cornelia Weltzien, Roemi Fernández","doi":"10.3389/frobt.2023.1330496","DOIUrl":"https://doi.org/10.3389/frobt.2023.1330496","url":null,"abstract":"Agriculture 4.0 presents several challenges for the automation of various operations, including the fundamental task of harvesting. One of the crucial aspects in the automatic harvesting of high value crops is the grip and detachment of delicate fruits without spoiling them or interfering with the environment. Soft robotic systems, particularly soft grippers, offer a promising solution for this problem, as they can operate in unstructured environments, manipulate objects delicately, and interact safely with humans. In this context, this article presents a soft gripper design for harvesting as well as for pick-and-place operations of small and medium-sized fruits. The gripper is fabricated using the 3D printing technology with a flexible thermoplastic elastomer filament. This approach enables the production of an economical, compact, easily replicable, and interchangeable gripper by utilizing soft robotics principles, such as flexible structures and pneumatic actuation.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"118 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soft touchless sensors and touchless sensing for soft robots 用于软体机器人的非接触式软传感器和非接触式传感技术
Pub Date : 2024-01-18 DOI: 10.3389/frobt.2024.1224216
Chapa Sirithunge, Huijiang Wang, Fumiya Iida
Soft robots are characterized by their mechanical compliance, making them well-suited for various bio-inspired applications. However, the challenge of preserving their flexibility during deployment has necessitated using soft sensors which can enhance their mobility, energy efficiency, and spatial adaptability. Through emulating the structure, strategies, and working principles of human senses, soft robots can detect stimuli without direct contact with soft touchless sensors and tactile stimuli. This has resulted in noteworthy progress within the field of soft robotics. Nevertheless, soft, touchless sensors offer the advantage of non-invasive sensing and gripping without the drawbacks linked to physical contact. Consequently, the popularity of soft touchless sensors has grown in recent years, as they facilitate intuitive and safe interactions with humans, other robots, and the surrounding environment. This review explores the emerging confluence of touchless sensing and soft robotics, outlining a roadmap for deployable soft robots to achieve human-level dexterity.
软机器人的特点是具有机械顺应性,因此非常适合各种生物启发应用。然而,在部署过程中如何保持其灵活性是一项挑战,因此有必要使用软传感器来增强其移动性、能效和空间适应性。通过模仿人类感官的结构、策略和工作原理,软体机器人可以在不直接接触软体无触传感器和触觉刺激的情况下检测刺激。这使得软体机器人技术领域取得了显著进展。然而,柔软的非接触式传感器具有非侵入式感知和抓取的优势,却没有与身体接触相关的缺点。因此,近年来软性非接触式传感器越来越受欢迎,因为它们有助于与人类、其他机器人和周围环境进行直观而安全的互动。本综述探讨了新出现的无触摸传感和软机器人技术的融合,概述了可部署软机器人实现人类级别灵巧性的路线图。
{"title":"Soft touchless sensors and touchless sensing for soft robots","authors":"Chapa Sirithunge, Huijiang Wang, Fumiya Iida","doi":"10.3389/frobt.2024.1224216","DOIUrl":"https://doi.org/10.3389/frobt.2024.1224216","url":null,"abstract":"Soft robots are characterized by their mechanical compliance, making them well-suited for various bio-inspired applications. However, the challenge of preserving their flexibility during deployment has necessitated using soft sensors which can enhance their mobility, energy efficiency, and spatial adaptability. Through emulating the structure, strategies, and working principles of human senses, soft robots can detect stimuli without direct contact with soft touchless sensors and tactile stimuli. This has resulted in noteworthy progress within the field of soft robotics. Nevertheless, soft, touchless sensors offer the advantage of non-invasive sensing and gripping without the drawbacks linked to physical contact. Consequently, the popularity of soft touchless sensors has grown in recent years, as they facilitate intuitive and safe interactions with humans, other robots, and the surrounding environment. This review explores the emerging confluence of touchless sensing and soft robotics, outlining a roadmap for deployable soft robots to achieve human-level dexterity.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"123 34","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139616007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Asymmetric communication: cognitive models of humans toward an android robot 非对称交流:人类对机器人的认知模型
Pub Date : 2024-01-11 DOI: 10.3389/frobt.2023.1267560
Daisuke Kawakubo, Masaki Shuzo, Hiroaki Sugiyama, Eisaku Maeda
In the development of dialogue systems for android robots, the goal is to achieve human-like communication. However, subtle differences between android robots and humans are noticeable, leading even human-like android robots to be perceived differently. Understanding how humans accept android robots and optimizing their behavior is crucial. Generally, human customers have various expectations and anxieties when interacting with a robotic salesclerk instead of a human. Asymmetric communication arises when android robots treat customers like humans while customers treat robots as machines. Focusing on human-robot interaction in a tourist guide scenario, In this paper, we propose an asymmetric communication strategy that does not use estimation technology for preference information, but instead performs changing the agent’s character in order to pretend to tailor to the customer. In line with this, we prepared an experimental method to evaluate asymmetric communication strategies, using video clips to simulate dialogues. Participants completed questionnaires without prior knowledge of whether the salesclerk was human-like or robotic. The method allowed us to assess how participants treated the salesclerk and the effectiveness of the asymmetric communication strategy. Additionally, during our demonstration in a dialogue robot competition, 29 visitors had a positive impression of the android robot’s asymmetric communication strategy and reported a high level of satisfaction with the dialogue.
在为机器人开发对话系统的过程中,我们的目标是实现类似人类的交流。然而,安卓机器人与人类之间的细微差别是显而易见的,这导致即使是像人类一样的安卓机器人也会被认为是不同的。了解人类如何接受机器人并优化其行为至关重要。一般来说,人类顾客在与机器人销售员而不是人类进行互动时,会产生各种期望和焦虑。当机器人把顾客当人看,而顾客把机器人当机器看时,就会产生不对称交流。本文以导游场景中的人机交互为重点,提出了一种非对称交流策略,即不使用偏好信息估算技术,而是通过改变机器人的性格来假装迎合顾客。为此,我们准备了一种实验方法来评估非对称交流策略,使用视频剪辑来模拟对话。参与者在事先不知道售货员是人类还是机器人的情况下填写问卷。通过这种方法,我们可以评估参与者如何对待售货员以及非对称交流策略的有效性。此外,在我们的对话机器人竞赛演示中,29 名参观者对机器人的非对称交流策略留下了积极的印象,并对对话表示高度满意。
{"title":"Asymmetric communication: cognitive models of humans toward an android robot","authors":"Daisuke Kawakubo, Masaki Shuzo, Hiroaki Sugiyama, Eisaku Maeda","doi":"10.3389/frobt.2023.1267560","DOIUrl":"https://doi.org/10.3389/frobt.2023.1267560","url":null,"abstract":"In the development of dialogue systems for android robots, the goal is to achieve human-like communication. However, subtle differences between android robots and humans are noticeable, leading even human-like android robots to be perceived differently. Understanding how humans accept android robots and optimizing their behavior is crucial. Generally, human customers have various expectations and anxieties when interacting with a robotic salesclerk instead of a human. Asymmetric communication arises when android robots treat customers like humans while customers treat robots as machines. Focusing on human-robot interaction in a tourist guide scenario, In this paper, we propose an asymmetric communication strategy that does not use estimation technology for preference information, but instead performs changing the agent’s character in order to pretend to tailor to the customer. In line with this, we prepared an experimental method to evaluate asymmetric communication strategies, using video clips to simulate dialogues. Participants completed questionnaires without prior knowledge of whether the salesclerk was human-like or robotic. The method allowed us to assess how participants treated the salesclerk and the effectiveness of the asymmetric communication strategy. Additionally, during our demonstration in a dialogue robot competition, 29 visitors had a positive impression of the android robot’s asymmetric communication strategy and reported a high level of satisfaction with the dialogue.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"1 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139438148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Simultaneous localization and mapping in a multi-robot system in a dynamic environment with unknown initial correspondence 多机器人系统在未知初始对应关系的动态环境中同时定位和绘图
Pub Date : 2024-01-11 DOI: 10.3389/frobt.2023.1291672
Hadiseh Malakouti-Khah, Nargess Sadeghzadeh-Nokhodberiz, Allahyar Montazeri
A basic assumption in most approaches to simultaneous localization and mapping (SLAM) is the static nature of the environment. In recent years, some research has been devoted to the field of SLAM in dynamic environments. However, most of the studies conducted in this field have implemented SLAM by removing and filtering the moving landmarks. Moreover, the use of several robots in large, complex, and dynamic environments can significantly improve performance on the localization and mapping task, which has attracted many researchers to this problem more recently. In multi-robot SLAM, the robots can cooperate in a decentralized manner without the need for a central processing center to obtain their positions and a more precise map of the environment. In this article, a new decentralized approach is presented for multi-robot SLAM problems in dynamic environments with unknown initial correspondence. The proposed method applies a modified Fast-SLAM method, which implements SLAM in a decentralized manner by considering moving landmarks in the environment. Due to the unknown initial correspondence of the robots, a geographical approach is embedded in the proposed algorithm to align and merge their maps. Data association is also embedded in the algorithm; this is performed using the measurement predictions in the SLAM process of each robot. Finally, simulation results are provided to demonstrate the performance of the proposed method.
大多数同步定位和绘图(SLAM)方法的基本假设是环境的静态性质。近年来,一些研究致力于动态环境中的 SLAM 领域。不过,该领域的大多数研究都是通过移除和过滤移动地标来实现 SLAM 的。此外,在大型、复杂和动态环境中使用多个机器人可以显著提高定位和绘图任务的性能,这也吸引了许多研究人员最近开始关注这一问题。在多机器人 SLAM 中,机器人可以通过分散的方式进行合作,而无需中央处理中心来获取它们的位置和更精确的环境地图。本文针对未知初始对应关系的动态环境中的多机器人 SLAM 问题,提出了一种新的分散式方法。所提出的方法采用了改进的快速 SLAM 方法,通过考虑环境中的移动地标,以分散的方式实现 SLAM。由于机器人的初始对应关系未知,建议的算法中嵌入了一种地理方法来对齐和合并它们的地图。算法中还嵌入了数据关联;这是利用每个机器人在 SLAM 过程中的测量预测来实现的。最后,还提供了模拟结果,以证明所提方法的性能。
{"title":"Simultaneous localization and mapping in a multi-robot system in a dynamic environment with unknown initial correspondence","authors":"Hadiseh Malakouti-Khah, Nargess Sadeghzadeh-Nokhodberiz, Allahyar Montazeri","doi":"10.3389/frobt.2023.1291672","DOIUrl":"https://doi.org/10.3389/frobt.2023.1291672","url":null,"abstract":"A basic assumption in most approaches to simultaneous localization and mapping (SLAM) is the static nature of the environment. In recent years, some research has been devoted to the field of SLAM in dynamic environments. However, most of the studies conducted in this field have implemented SLAM by removing and filtering the moving landmarks. Moreover, the use of several robots in large, complex, and dynamic environments can significantly improve performance on the localization and mapping task, which has attracted many researchers to this problem more recently. In multi-robot SLAM, the robots can cooperate in a decentralized manner without the need for a central processing center to obtain their positions and a more precise map of the environment. In this article, a new decentralized approach is presented for multi-robot SLAM problems in dynamic environments with unknown initial correspondence. The proposed method applies a modified Fast-SLAM method, which implements SLAM in a decentralized manner by considering moving landmarks in the environment. Due to the unknown initial correspondence of the robots, a geographical approach is embedded in the proposed algorithm to align and merge their maps. Data association is also embedded in the algorithm; this is performed using the measurement predictions in the SLAM process of each robot. Finally, simulation results are provided to demonstrate the performance of the proposed method.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"15 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139438815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Smart haptic gloves for virtual reality surgery simulation: a pilot study on external ventricular drain training 用于虚拟现实手术模拟的智能触觉手套:心室外引流训练试点研究
Pub Date : 2024-01-10 DOI: 10.3389/frobt.2023.1273631
Jonah Boutin, Jafer Kamoonpuri, Reza Faieghi, Joon Chung, Sandrine de Ribaupierre, R. Eagleson
Smart haptic gloves are a new technology emerging in Virtual Reality (VR) with a promise to enhance sensory feedback in VR. This paper presents one of the first attempts to explore its application to surgical training for neurosurgery trainees using VR-based surgery simulators. We develop and evaluate a surgical simulator for External Ventricular Drain Placement (EVD), a common procedure in the field of neurosurgery. Haptic gloves are used in combination with a VR environment to augment the experience of burr hole placement, and flexible catheter manipulation. The simulator was integrated into the training curriculum at the 2022 Canadian Neurosurgery Rookie Bootcamp. Thirty neurosurgery residents used the simulator where objective performance metrics and subjective experience scores were acquired. We provide the details of the simulator development, as well as the user study results and draw conclusions on the benefits added by the haptic gloves and future directions.
智能触觉手套是虚拟现实(VR)领域出现的一项新技术,有望增强 VR 的感官反馈。本文首次尝试使用基于 VR 的手术模拟器,探索其在神经外科学员手术培训中的应用。我们开发并评估了脑室外引流管置入术(EVD)的手术模拟器,这是神经外科领域的一种常见手术。触觉手套与 VR 环境相结合,增强了毛刺孔置入和柔性导管操作的体验。该模拟器被纳入了 2022 年加拿大神经外科新手训练营的培训课程。30 名神经外科住院医师使用了该模拟器,并获得了客观表现指标和主观体验评分。我们提供了模拟器开发的细节以及用户研究结果,并就触觉手套带来的益处和未来发展方向得出结论。
{"title":"Smart haptic gloves for virtual reality surgery simulation: a pilot study on external ventricular drain training","authors":"Jonah Boutin, Jafer Kamoonpuri, Reza Faieghi, Joon Chung, Sandrine de Ribaupierre, R. Eagleson","doi":"10.3389/frobt.2023.1273631","DOIUrl":"https://doi.org/10.3389/frobt.2023.1273631","url":null,"abstract":"Smart haptic gloves are a new technology emerging in Virtual Reality (VR) with a promise to enhance sensory feedback in VR. This paper presents one of the first attempts to explore its application to surgical training for neurosurgery trainees using VR-based surgery simulators. We develop and evaluate a surgical simulator for External Ventricular Drain Placement (EVD), a common procedure in the field of neurosurgery. Haptic gloves are used in combination with a VR environment to augment the experience of burr hole placement, and flexible catheter manipulation. The simulator was integrated into the training curriculum at the 2022 Canadian Neurosurgery Rookie Bootcamp. Thirty neurosurgery residents used the simulator where objective performance metrics and subjective experience scores were acquired. We provide the details of the simulator development, as well as the user study results and draw conclusions on the benefits added by the haptic gloves and future directions.","PeriodicalId":504612,"journal":{"name":"Frontiers in Robotics and AI","volume":"70 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139440779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Frontiers in Robotics and AI
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1