首页 > 最新文献

2020 IEEE International Conference on Robotics and Automation (ICRA)最新文献

英文 中文
Design of a Parallel Haptic Device with Gravity Compensation by using its System Weight 利用系统重量进行重力补偿的并联触觉装置设计
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9197065
Sung-moon Hur, Jaeyoung Park, Jaeheung Park, Yonghwan Oh
This paper proposes a 6 degree of freedom (DoF) manipulator for haptic application. The proposed haptic device, named GHap, is designed based on the four-bar-linkage mechanism for linear motion with the ring-type gimbal mechanism. To improve the force display ability, the device is designed to compensate the gravity force of the manipulator by its own weight. The conceptual mechanical design is compared by placing the third joint, which controls the four-bar mechanism, in two different configurations. The forward kinematics and the jacobian of GHap are presented. Finally, the gravity compensation method and open-loop force display performance of the proposed haptic device are validated by an experiment with the GHap prototype.
提出了一种六自由度的触觉机械臂。所提出的触觉装置名为GHap,是基于四杆连杆机构和环形框架机构进行直线运动设计的。为了提高机械手的受力显示能力,设计了以机械手自重补偿机械手重力的装置。通过将控制四杆机构的第三个关节置于两种不同的配置中,对概念机械设计进行了比较。给出了GHap的正运动学和雅可比矩阵。最后,通过GHap样机的实验验证了该触觉装置的重力补偿方法和开环力显示性能。
{"title":"Design of a Parallel Haptic Device with Gravity Compensation by using its System Weight","authors":"Sung-moon Hur, Jaeyoung Park, Jaeheung Park, Yonghwan Oh","doi":"10.1109/ICRA40945.2020.9197065","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9197065","url":null,"abstract":"This paper proposes a 6 degree of freedom (DoF) manipulator for haptic application. The proposed haptic device, named GHap, is designed based on the four-bar-linkage mechanism for linear motion with the ring-type gimbal mechanism. To improve the force display ability, the device is designed to compensate the gravity force of the manipulator by its own weight. The conceptual mechanical design is compared by placing the third joint, which controls the four-bar mechanism, in two different configurations. The forward kinematics and the jacobian of GHap are presented. Finally, the gravity compensation method and open-loop force display performance of the proposed haptic device are validated by an experiment with the GHap prototype.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"6 1","pages":"11103-11108"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77985271","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
Real-Time UAV Path Planning for Autonomous Urban Scene Reconstruction 基于自主城市场景重构的实时无人机路径规划
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9196558
Qi Kuang, Jinbo Wu, Jia Pan, Bin Zhou
Unmanned aerial vehicles (UAVs) are frequently used for large-scale scene mapping and reconstruction. However, in most cases, drones are operated manually, which should be more effective and intelligent. In this article, we present a method of real-time UAV path planning for autonomous urban scene reconstruction. Considering the obstacles and time costs, we utilize the top view to generate the initial path. Then we estimate the building heights and take close-up pictures that reveal building details through a SLAM framework. To predict the coverage of the scene, we propose a novel method which combines information on reconstructed point clouds and possible coverage areas. The experimental results reveal that the reconstruction quality of our method is good enough. Our method is also more time-saving than the state-of-the-arts.
无人驾驶飞行器(uav)经常用于大规模场景测绘和重建。然而,在大多数情况下,无人机是手动操作的,这应该更有效和智能。本文提出了一种用于自主城市场景重建的无人机实时路径规划方法。考虑到障碍物和时间成本,我们利用俯视图来生成初始路径。然后,我们估计建筑高度,并通过SLAM框架拍摄特写照片,揭示建筑细节。为了预测场景的覆盖范围,我们提出了一种结合重构点云信息和可能覆盖区域的方法。实验结果表明,该方法具有较好的重建质量。我们的方法也比最先进的方法更节省时间。
{"title":"Real-Time UAV Path Planning for Autonomous Urban Scene Reconstruction","authors":"Qi Kuang, Jinbo Wu, Jia Pan, Bin Zhou","doi":"10.1109/ICRA40945.2020.9196558","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9196558","url":null,"abstract":"Unmanned aerial vehicles (UAVs) are frequently used for large-scale scene mapping and reconstruction. However, in most cases, drones are operated manually, which should be more effective and intelligent. In this article, we present a method of real-time UAV path planning for autonomous urban scene reconstruction. Considering the obstacles and time costs, we utilize the top view to generate the initial path. Then we estimate the building heights and take close-up pictures that reveal building details through a SLAM framework. To predict the coverage of the scene, we propose a novel method which combines information on reconstructed point clouds and possible coverage areas. The experimental results reveal that the reconstruction quality of our method is good enough. Our method is also more time-saving than the state-of-the-arts.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"18 1","pages":"1156-1162"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75134707","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: 12
Perception-aware time optimal path parameterization for quadrotors 四旋翼机感知时间最优路径参数化
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9197157
Igor Spasojevic, Varun Murali, S. Karaman
The increasing popularity of quadrotors has given rise to a class of predominantly vision-driven vehicles. This paper addresses the problem of perception-aware time optimal path parametrization for quadrotors. Although many different choices of perceptual modalities are available, the low weight and power budgets of quadrotor systems makes a camera ideal for on-board navigation and estimation algorithms. However, this does come with a set of challenges. The limited field of view of the camera can restrict the visibility of salient regions in the environment, which dictates the necessity to consider perception and planning jointly. The main contribution of this paper is an efficient time optimal path parametrization algorithm for quadrotors with limited field of view constraints. We show in a simulation study that a state-of-the-art controller can track planned trajectories, and we validate the proposed algorithm on a quadrotor platform in experiments.
四旋翼飞行器的日益普及已经产生了一类主要由视觉驱动的飞行器。研究了四旋翼机感知时间最优路径参数化问题。虽然有许多不同的感知模式可供选择,但四旋翼系统的低重量和功耗预算使相机成为机载导航和估计算法的理想选择。然而,这也带来了一系列挑战。摄像机有限的视场限制了环境中突出区域的可见性,这就要求将感知和规划结合起来考虑。本文的主要贡献是针对有限视场约束的四旋翼飞行器提出了一种有效的时间最优路径参数化算法。我们在仿真研究中表明,最先进的控制器可以跟踪计划的轨迹,并在实验中验证了四旋翼平台上提出的算法。
{"title":"Perception-aware time optimal path parameterization for quadrotors","authors":"Igor Spasojevic, Varun Murali, S. Karaman","doi":"10.1109/ICRA40945.2020.9197157","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9197157","url":null,"abstract":"The increasing popularity of quadrotors has given rise to a class of predominantly vision-driven vehicles. This paper addresses the problem of perception-aware time optimal path parametrization for quadrotors. Although many different choices of perceptual modalities are available, the low weight and power budgets of quadrotor systems makes a camera ideal for on-board navigation and estimation algorithms. However, this does come with a set of challenges. The limited field of view of the camera can restrict the visibility of salient regions in the environment, which dictates the necessity to consider perception and planning jointly. The main contribution of this paper is an efficient time optimal path parametrization algorithm for quadrotors with limited field of view constraints. We show in a simulation study that a state-of-the-art controller can track planned trajectories, and we validate the proposed algorithm on a quadrotor platform in experiments.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"10 1","pages":"3213-3219"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75531004","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: 27
Deep Depth Fusion for Black, Transparent, Reflective and Texture-Less Objects 深度融合黑色,透明,反射和无纹理的对象
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9196894
Chun-Yu Chai, Yu-Po Wu, Shiao-Li Tsao
Structured-light and stereo cameras, which are widely used to construct point clouds for robotic applications, have different limitations on estimating depth values. Structured-light cameras fail in black, transparent, and reflective objects, which influence the light path; stereo cameras fail in texture-less objects. In this work, we propose a depth fusion model that complements these two types of methods to generate high-quality point clouds for short-range robotic applications. The model first determines the fusion weights from the two input depth images and then refines the fused depth using color features. We construct a dataset containing the aforementioned challenging objects and report the performance of our proposed model. The results reveal that our method reduces the average L1 distance on depth prediction by 75% and 52% compared with the original depth output of the structured-light camera and the stereo model, respectively. A noticeable improvement on the Iterative Closest Point (ICP) algorithm can be achieved by using the refined depth images output from our method.
结构光相机和立体相机被广泛用于机器人应用的点云构建,它们在估计深度值方面有不同的局限性。结构光相机无法拍摄黑色、透明和反射物体,因为它们会影响光路;立体相机无法拍摄无纹理的物体。在这项工作中,我们提出了一种深度融合模型,该模型补充了这两种方法,为短程机器人应用生成高质量的点云。该模型首先从两个输入深度图像中确定融合权重,然后利用颜色特征对融合深度进行细化。我们构建了一个包含上述挑战性对象的数据集,并报告了我们提出的模型的性能。结果表明,与结构光相机和立体模型的原始深度输出相比,我们的方法在深度预测上的平均L1距离分别减少了75%和52%。通过使用该方法输出的精细深度图像,可以显著改进迭代最近点(ICP)算法。
{"title":"Deep Depth Fusion for Black, Transparent, Reflective and Texture-Less Objects","authors":"Chun-Yu Chai, Yu-Po Wu, Shiao-Li Tsao","doi":"10.1109/ICRA40945.2020.9196894","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9196894","url":null,"abstract":"Structured-light and stereo cameras, which are widely used to construct point clouds for robotic applications, have different limitations on estimating depth values. Structured-light cameras fail in black, transparent, and reflective objects, which influence the light path; stereo cameras fail in texture-less objects. In this work, we propose a depth fusion model that complements these two types of methods to generate high-quality point clouds for short-range robotic applications. The model first determines the fusion weights from the two input depth images and then refines the fused depth using color features. We construct a dataset containing the aforementioned challenging objects and report the performance of our proposed model. The results reveal that our method reduces the average L1 distance on depth prediction by 75% and 52% compared with the original depth output of the structured-light camera and the stereo model, respectively. A noticeable improvement on the Iterative Closest Point (ICP) algorithm can be achieved by using the refined depth images output from our method.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"2 1","pages":"6766-6772"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75659340","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: 3
Bi-Convex Approximation of Non-Holonomic Trajectory Optimization 非完整轨迹优化的双凸逼近
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9197092
A. Singh, Raghu Ram Theerthala, M. Babu, U. R. Nair, K. Krishna
Autonomous cars and fixed-wing aerial vehicles have the so-called non-holonomic kinematics which non-linearly maps control input to states. As a result, trajectory optimization with such a motion model becomes highly non-linear and non-convex. In this paper, we improve the computational tractability of non-holonomic trajectory optimization by reformulating it in terms of a set of bi-convex cost and constraint functions along with a non-linear penalty. The bi-convex part acts as a relaxation for the non-holonomic trajectory optimization while the residual of the penalty dictates how well its output obeys the non-holonomic behavior. We adopt an alternating minimization approach for solving the reformulated problem and show that it naturally leads to the replacement of the challenging non-linear penalty with a globally valid convex surrogate. Along with the common cost functions modeling goal-reaching, trajectory smoothness, etc., the proposed optimizer can also accommodate a class of non-linear costs for modeling goal-sets, while retaining the bi-convex structure. We benchmark the proposed optimizer against off-the-shelf solvers implementing sequential quadratic programming and interior-point methods and show that it produces solutions with similar or better cost as the former while significantly outperforming the latter. Furthermore, as compared to both off-the-shelf solvers, the proposed optimizer achieves more than 20x reduction in computation time.
自动驾驶汽车和固定翼飞行器具有所谓的非完整运动学,它将控制输入非线性地映射到状态。因此,利用这种运动模型进行轨迹优化具有高度的非线性和非凸性。本文通过将非完整轨迹优化用一组双凸代价函数和约束函数以及非线性惩罚函数的形式重新表述,提高了非完整轨迹优化的计算可跟踪性。双凸部分作为非完整轨迹优化的松弛,惩罚的残差决定其输出服从非完整行为的程度。我们采用交替最小化方法来解决重新表述的问题,并表明它自然地导致用全局有效的凸代理替换具有挑战性的非线性惩罚。除了常用的建模目标到达、轨迹平滑等代价函数外,所提出的优化器还可以在保留双凸结构的同时适应一类非线性代价来建模目标集。我们将提出的优化器与实现顺序二次规划和内点方法的现成求解器进行基准测试,并表明它产生的解决方案具有与前者相似或更好的成本,同时显着优于后者。此外,与两种现成的求解器相比,所提出的优化器将计算时间减少了20倍以上。
{"title":"Bi-Convex Approximation of Non-Holonomic Trajectory Optimization","authors":"A. Singh, Raghu Ram Theerthala, M. Babu, U. R. Nair, K. Krishna","doi":"10.1109/ICRA40945.2020.9197092","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9197092","url":null,"abstract":"Autonomous cars and fixed-wing aerial vehicles have the so-called non-holonomic kinematics which non-linearly maps control input to states. As a result, trajectory optimization with such a motion model becomes highly non-linear and non-convex. In this paper, we improve the computational tractability of non-holonomic trajectory optimization by reformulating it in terms of a set of bi-convex cost and constraint functions along with a non-linear penalty. The bi-convex part acts as a relaxation for the non-holonomic trajectory optimization while the residual of the penalty dictates how well its output obeys the non-holonomic behavior. We adopt an alternating minimization approach for solving the reformulated problem and show that it naturally leads to the replacement of the challenging non-linear penalty with a globally valid convex surrogate. Along with the common cost functions modeling goal-reaching, trajectory smoothness, etc., the proposed optimizer can also accommodate a class of non-linear costs for modeling goal-sets, while retaining the bi-convex structure. We benchmark the proposed optimizer against off-the-shelf solvers implementing sequential quadratic programming and interior-point methods and show that it produces solutions with similar or better cost as the former while significantly outperforming the latter. Furthermore, as compared to both off-the-shelf solvers, the proposed optimizer achieves more than 20x reduction in computation time.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"106 1","pages":"476-482"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75672300","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: 9
Design of a Roller-Based Dexterous Hand for Object Grasping and Within-Hand Manipulation 一种基于滚轮的灵巧手的抓握与手内操作设计
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9197146
Shenli Yuan, A. D. Epps, Jerome B. Nowak, J. Salisbury
This paper describes the development of a novel non-anthropomorphic robot hand with the ability to manipulate objects by means of articulated, actively driven rollers located at the fingertips. An analysis is conducted and systems of equations for two-finger and three-finger manipulation of a sphere are formulated to demonstrate full six degree of freedom nonholonomic spatial motion capability. A prototype version of the hand was constructed and used to grasp and manipulate a variety of objects. Tests conducted with the prototype confirmed the validity of the mathematical analysis. Unlike conventional approaches to within-hand manipulation using legacy robotic hands, the continuous rotation capability of our rolling fingertips allows for unbounded rotation of a grasped object without the need for finger gaiting.
本文描述了一种新型非拟人化机器人手的发展,该机器人手具有通过位于指尖的铰接、主动驱动的滚轮来操纵物体的能力。通过分析,建立了两指和三指操纵球体的方程组,证明了全六自由度非完整空间运动能力。这只手的原型被制造出来,用来抓握和操纵各种各样的物体。用样机进行的试验证实了数学分析的有效性。与传统的机器人手操作方法不同,我们滚动指尖的连续旋转能力允许抓取对象的无限旋转,而无需手指步态。
{"title":"Design of a Roller-Based Dexterous Hand for Object Grasping and Within-Hand Manipulation","authors":"Shenli Yuan, A. D. Epps, Jerome B. Nowak, J. Salisbury","doi":"10.1109/ICRA40945.2020.9197146","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9197146","url":null,"abstract":"This paper describes the development of a novel non-anthropomorphic robot hand with the ability to manipulate objects by means of articulated, actively driven rollers located at the fingertips. An analysis is conducted and systems of equations for two-finger and three-finger manipulation of a sphere are formulated to demonstrate full six degree of freedom nonholonomic spatial motion capability. A prototype version of the hand was constructed and used to grasp and manipulate a variety of objects. Tests conducted with the prototype confirmed the validity of the mathematical analysis. Unlike conventional approaches to within-hand manipulation using legacy robotic hands, the continuous rotation capability of our rolling fingertips allows for unbounded rotation of a grasped object without the need for finger gaiting.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"53 1","pages":"8870-8876"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72889748","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: 36
Preliminary Study of an Aerial Manipulator with Elastic Suspension 弹性悬架航空机械臂的初步研究
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9196942
Arda Yiğit, Gustave Grappe, L. Cuvillon, S. Durand, J. Gangloff
This paper presents a preliminary study of an Aerial Manipulator suspended by a spring to a robotic carrier. The suspended aerial manipulator is actuated by six pairs of contra-rotating propellers generating a 6-DoF wrench. Simulations show path following results using a computed torque (feedback linearization) control strategy. Active vibration canceling is validated experimentally on a first prototype.
本文初步研究了一种由弹簧悬挂在机器人载体上的空中机械臂。悬挂式空中机械手由6对反向旋转的螺旋桨驱动,产生6自由度扳手。仿真显示了使用计算扭矩(反馈线性化)控制策略的路径跟踪结果。在首台样机上进行了主动消振实验验证。
{"title":"Preliminary Study of an Aerial Manipulator with Elastic Suspension","authors":"Arda Yiğit, Gustave Grappe, L. Cuvillon, S. Durand, J. Gangloff","doi":"10.1109/ICRA40945.2020.9196942","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9196942","url":null,"abstract":"This paper presents a preliminary study of an Aerial Manipulator suspended by a spring to a robotic carrier. The suspended aerial manipulator is actuated by six pairs of contra-rotating propellers generating a 6-DoF wrench. Simulations show path following results using a computed torque (feedback linearization) control strategy. Active vibration canceling is validated experimentally on a first prototype.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"31 1","pages":"4287-4293"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74617986","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: 4
Grasp Control for Enhancing Dexterity of Parallel Grippers 提高并联抓取器灵巧性的抓取控制
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9196873
M. Costanzo, G. Maria, Gaetano Lettera, C. Natale
A robust grasp controller for both slipping avoidance and controlled sliding is proposed based on force/tactile feedback only. The model-based algorithm exploits a modified LuGre friction model to consider rotational frictional sliding motions. The modification relies on the Limit Surface concept where a novel computationally efficient method is introduced to compute in real-time the minimum grasping force to balance tangential and torsional loads. The two control modalities are considered by the robot motion planning algorithm that automatically generates robot motions and gripper commands to solve complex manipulation tasks in a material handling application.
提出了一种既能避免滑动又能控制滑动的鲁棒抓取控制器,该控制器仅基于力/触觉反馈。基于模型的算法利用改进的LuGre摩擦模型来考虑旋转摩擦滑动运动。该改进依赖于极限曲面概念,该概念引入了一种新的计算效率高的方法来实时计算平衡切向和扭转载荷的最小抓握力。机器人运动规划算法考虑了这两种控制模式,自动生成机器人运动和抓取命令,以解决物料搬运应用中的复杂操作任务。
{"title":"Grasp Control for Enhancing Dexterity of Parallel Grippers","authors":"M. Costanzo, G. Maria, Gaetano Lettera, C. Natale","doi":"10.1109/ICRA40945.2020.9196873","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9196873","url":null,"abstract":"A robust grasp controller for both slipping avoidance and controlled sliding is proposed based on force/tactile feedback only. The model-based algorithm exploits a modified LuGre friction model to consider rotational frictional sliding motions. The modification relies on the Limit Surface concept where a novel computationally efficient method is introduced to compute in real-time the minimum grasping force to balance tangential and torsional loads. The two control modalities are considered by the robot motion planning algorithm that automatically generates robot motions and gripper commands to solve complex manipulation tasks in a material handling application.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"76 1","pages":"524-530"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73605664","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: 5
Reliable frame-to-frame motion estimation for vehicle-mounted surround-view camera systems 车载环视相机系统可靠的帧间运动估计
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9197176
Yifu Wang, Kun Huang, Xin-Zhong Peng, Hongdong Li, L. Kneip
Modern vehicles are often equipped with a surround-view multi-camera system. The current interest in autonomous driving invites the investigation of how to use such systems for a reliable estimation of relative vehicle displacement. Existing camera pose algorithms either work for a single camera, make overly simplified assumptions, are computationally expensive, or simply become degenerate under non-holonomic vehicle motion. In this paper, we introduce a new, reliable solution able to handle all kinds of relative displacements in the plane despite the possibly non-holonomic characteristics. We furthermore introduce a novel two-view optimization scheme which minimizes a geometrically relevant error without relying on 3D point related optimization variables. Our method leads to highly reliable and accurate frame-to-frame visual odometry with a full-size, vehicle-mounted surround-view camera system.
现代车辆通常配备了环视多摄像头系统。当前对自动驾驶的兴趣促使人们研究如何使用这样的系统来可靠地估计车辆的相对位移。现有的相机姿态算法要么适用于单个相机,要么做出过于简化的假设,要么计算成本高昂,要么在非完整车辆运动下简单退化。在本文中,我们引入了一种新的、可靠的解,能够处理平面上的各种相对位移,尽管可能存在非完整的特征。我们进一步介绍了一种新的双视图优化方案,该方案在不依赖于三维点相关优化变量的情况下最小化几何相关误差。我们的方法通过全尺寸的车载环视相机系统实现了高度可靠和精确的帧对帧视觉里程计。
{"title":"Reliable frame-to-frame motion estimation for vehicle-mounted surround-view camera systems","authors":"Yifu Wang, Kun Huang, Xin-Zhong Peng, Hongdong Li, L. Kneip","doi":"10.1109/ICRA40945.2020.9197176","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9197176","url":null,"abstract":"Modern vehicles are often equipped with a surround-view multi-camera system. The current interest in autonomous driving invites the investigation of how to use such systems for a reliable estimation of relative vehicle displacement. Existing camera pose algorithms either work for a single camera, make overly simplified assumptions, are computationally expensive, or simply become degenerate under non-holonomic vehicle motion. In this paper, we introduce a new, reliable solution able to handle all kinds of relative displacements in the plane despite the possibly non-holonomic characteristics. We furthermore introduce a novel two-view optimization scheme which minimizes a geometrically relevant error without relying on 3D point related optimization variables. Our method leads to highly reliable and accurate frame-to-frame visual odometry with a full-size, vehicle-mounted surround-view camera system.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"7 1","pages":"1660-1666"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73908769","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: 7
Studying Navigation as a Form of Interaction: a Design Approach for Social Robot Navigation Methods* 将导航作为一种交互形式进行研究:一种社交机器人导航方法的设计方法*
Pub Date : 2020-05-01 DOI: 10.1109/ICRA40945.2020.9197037
Philip Scales, O. Aycard, V. Aubergé
Social Navigation methods attempt to integrate knowledge from Human Sciences fields such as the notion of Proxemics into mobile robot navigation. They are often evaluated in simulations, or lab conditions with informed participants, and studies of the impact of the robot behavior on humans are rare. Humans communicate and interact through many vectors, among which are motion and positioning, which can be related to social hierarchy and the socio-physical context. If a robot is to be deployed among humans, the methods it uses should be designed with this in mind. This work acts as the first step in an ongoing project in which we explore how to design navigation methods for mobile robots destined to be deployed among humans. We aim to consider navigation as more than just a functionality of the robot, and to study the impact of robot motion on humans. In this paper, we focus on the person-following task. We selected a state of the art person-following method as the basis for our method, which we modified and extended in order for it to be more general and adaptable. We conducted pilot experiments using this method on a real mobile robot in ecological contexts. We used results from the experiments to study the Human-Robot Interaction as a whole by analysing both the person-following method and the human behavior. Our preliminary results show that the way in which the robot followed a person had an impact on the interaction that emerged between them.
社会导航方法试图将人类科学领域的知识(如Proxemics的概念)整合到移动机器人导航中。它们通常在模拟或实验室条件下与知情的参与者进行评估,而机器人行为对人类影响的研究很少。人类通过许多载体进行交流和互动,其中包括运动和定位,这可能与社会等级和社会物理环境有关。如果一个机器人要部署在人类中间,那么它所使用的方法就应该考虑到这一点。这项工作是一个正在进行的项目的第一步,在这个项目中,我们探索如何为注定要在人类中部署的移动机器人设计导航方法。我们的目标是考虑导航不仅仅是机器人的一个功能,并研究机器人运动对人类的影响。在本文中,我们关注的是人跟随任务。我们选择了一种最先进的人跟踪方法作为我们方法的基础,我们对其进行了修改和扩展,以使其更通用和适应性强。我们在一个真实的生态环境下的移动机器人上进行了该方法的试点实验。我们利用实验结果从整体上通过分析人跟随方法和人的行为来研究人机交互。我们的初步结果表明,机器人跟随人的方式对他们之间出现的互动产生了影响。
{"title":"Studying Navigation as a Form of Interaction: a Design Approach for Social Robot Navigation Methods*","authors":"Philip Scales, O. Aycard, V. Aubergé","doi":"10.1109/ICRA40945.2020.9197037","DOIUrl":"https://doi.org/10.1109/ICRA40945.2020.9197037","url":null,"abstract":"Social Navigation methods attempt to integrate knowledge from Human Sciences fields such as the notion of Proxemics into mobile robot navigation. They are often evaluated in simulations, or lab conditions with informed participants, and studies of the impact of the robot behavior on humans are rare. Humans communicate and interact through many vectors, among which are motion and positioning, which can be related to social hierarchy and the socio-physical context. If a robot is to be deployed among humans, the methods it uses should be designed with this in mind. This work acts as the first step in an ongoing project in which we explore how to design navigation methods for mobile robots destined to be deployed among humans. We aim to consider navigation as more than just a functionality of the robot, and to study the impact of robot motion on humans. In this paper, we focus on the person-following task. We selected a state of the art person-following method as the basis for our method, which we modified and extended in order for it to be more general and adaptable. We conducted pilot experiments using this method on a real mobile robot in ecological contexts. We used results from the experiments to study the Human-Robot Interaction as a whole by analysing both the person-following method and the human behavior. Our preliminary results show that the way in which the robot followed a person had an impact on the interaction that emerged between them.","PeriodicalId":6859,"journal":{"name":"2020 IEEE International Conference on Robotics and Automation (ICRA)","volume":"54 1","pages":"6965-6972"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74088475","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: 7
期刊
2020 IEEE International Conference on Robotics and Automation (ICRA)
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