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Research on interactive product design of procrastination patients 拖延症患者互动产品设计研究
Jiayuan Lyu, Taiwen Zhang
Procrastination is a widespread phenomenon among people of all ages. With the advent of the epidemic era, home-based lifestyles have exacerbated procrastination of procrastinators. Long-term procrastination can have a very negative impact on the life and psychology of procrastinators, and in serious cases, it will lead to psychological disorders such as depression and anxiety. Procrastination is mainly caused by psychological and environmental factors. At present, most procrastination designs are based on environmental restrictions, such as restrictions on the use of mobile phones in time management applications. This type of design only restricts the procrastination behavior of users, but does not change the user’s procrastination psychology, leading to rejection of products and lack of sustainability. The purpose of this study is to solve the problem of procrastination by designing from the psychological level, guide users to conduct autonomous time management by expressing different time experiences, and provide more possibilities for users’ time management. Based on regression analysis on survey data, this study analysed the correlation between the degree of delay and the overall time perception intensity and different types of time perception and refer to the perception of time that is less prone to procrastination. Furthermore, we consider how to change the user’s time perception through design means to guide the user to be in the time perception that is not easy to delay. Finally, the design elements that can effectively change the user’s time perception are extracted through reference, and applied to the subsequent interactive product design. This study innovatively applies the theories of procrastination and time perception to interactive product design, providing new ideas for the future research and design on procrastination.
拖延症是各个年龄段的人普遍存在的现象。随着疫情时代的到来,居家生活方式加剧了拖延症患者的拖延症。长期拖延会对拖延者的生活和心理产生非常负面的影响,严重的还会导致抑郁、焦虑等心理障碍。拖延症主要是由心理和环境因素引起的。目前,大多数拖延症设计都是基于环境限制,比如在时间管理应用程序中限制使用手机。这种类型的设计只是限制了用户的拖延行为,并没有改变用户的拖延心理,导致用户对产品的排斥,缺乏可持续性。本研究的目的是通过心理层面的设计来解决拖延问题,通过表达不同的时间体验来引导用户进行自主时间管理,为用户的时间管理提供更多的可能性。本研究在对调查数据进行回归分析的基础上,分析了延迟程度与整体时间感知强度和不同类型时间感知之间的相关关系,并参考了不容易拖延的时间感知。进而考虑如何通过设计手段改变用户的时间感知,引导用户处于不易延迟的时间感知中。最后,通过参考提取出能够有效改变用户时间感知的设计元素,并应用到后续的交互产品设计中。本研究创新性地将拖延和时间感知理论应用于交互产品设计中,为今后拖延的研究和设计提供了新的思路。
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引用次数: 0
Research and implementation of dynamic gesture recognition system based on ZYNQ 基于ZYNQ的动态手势识别系统的研究与实现
J. Li, Qing-qiang Liu, Zengzhen Li, Wei Chen
At present, gesture has become an important channel of human-computer interaction, and gesture recognition has been widely used in various fields. In this paper, the dynamic gesture recognition technology is studied from algorithm and system implementation for portable devices which require high real-time performance. The algorithm mainly uses the region of interest extraction based on face recognition, skin color detection based on HCrCg color space and gesture motion track marking based on scanline seed filling algorithm. The system is implemented by Xilinx ZYNQ, and a SOPC system architecture based on ARM Cortex-A9 hard core and ARM Cortex-M3 soft core and FPGA is proposed. The scanline seed filling algorithm with long running time is designed as a hardware accelerator to improve the running speed. Through the test of the prototype, the recognition accuracy can reach 95.75% in a simple background and 90.83% in a complex background. The average running time of the system is only 0.68 seconds, which is more than 30% faster than using pure software method. The system has good performance in recognition accuracy and running speed.
目前,手势已成为人机交互的重要渠道,手势识别已广泛应用于各个领域。本文从算法和系统实现两个方面对实时性要求较高的便携式设备动态手势识别技术进行了研究。该算法主要采用基于人脸识别的兴趣区域提取、基于HCrCg色彩空间的肤色检测和基于扫描线种子填充算法的手势运动轨迹标记。系统采用Xilinx ZYNQ软件实现,提出了基于ARM Cortex-A9硬核和ARM Cortex-M3软核以及FPGA的SOPC系统架构。设计了运行时间长的扫描线种子填充算法作为硬件加速器,提高了运行速度。通过对原型的测试,在简单背景下的识别准确率可达95.75%,在复杂背景下的识别准确率可达90.83%。系统的平均运行时间仅为0.68秒,比使用纯软件方法快30%以上。该系统在识别精度和运行速度方面具有良好的性能。
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引用次数: 0
Design and application of smart industrial park based on Internet of Things technology 基于物联网技术的智慧产业园设计与应用
Yixin Yang
Smart industrial parks are an important part of smart cities and building an information platform using the Internet of Things and cloud computing has become the development direction of smart industrial parks. According to the current needs of related users in the smart industrial park, the architecture of the information system of the smart industrial park was proposed. The design scheme realized the functions of intelligent analysis, interconnection and optimal decision-making of the smart industrial park. And based on the Internet of Things, the application in the smart industrial park was introduced to provide guidance for the improvement of the intelligence level of the smart industrial park.
智慧工业园区是智慧城市的重要组成部分,利用物联网和云计算构建信息化平台已成为智慧工业园区的发展方向。根据当前智慧工业园区相关用户的需求,提出了智慧工业园区信息系统的架构。该设计方案实现了智能产业园的智能分析、互联和优化决策等功能。并以物联网为基础,介绍物联网在智慧产业园中的应用,为智慧产业园智能化水平的提升提供指导。
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引用次数: 0
Research on pedestrian targe detection based on deep learning 基于深度学习的行人目标检测研究
Hansong Wang, Quan Liang
In the process of autonomous driving, there will be missed detections and false detections caused by dense crowds and occlusions during pedestrian target detection. This paper proposes a pedestrian object detection network model that combines Swin Transformer and YOLOv3. First use the lightweight Swin Transformer Tiny to replace the original Darknet53 as the backbone network of YOLOv3. The multi-scale detection is realized through the self-attention hierarchical network, which optimizes the detection effect in the case of dense pedestrians. Secondly, to deal with the occlusion in the crowd, Focal-EIoU Loss is used as a new loss function. I Introduce edge length loss and Focal L1 loss to increase the loss and gradient of IoU, thereby improving the regression accuracy. Finally, experiments are performed on the Caltech dataset. The experimental results show that the precision on the Caltech dataset reaches 95.23% and the recall rate reaches 89.57%. Compared with the original YOLOv3 algorithm, the precision is increased by 3.22%, and the recall rate is increased by 4.35%. The effectiveness of the algorithm is verified, and the performance of pedestrian detection is greatly improved.
在自动驾驶过程中,行人目标检测过程中会出现因密集人群和遮挡造成的漏检和误检。本文提出了一种结合Swin Transformer和YOLOv3的行人目标检测网络模型。首先使用轻量级Swin Transformer Tiny取代原来的Darknet53作为YOLOv3的骨干网络。通过自关注分层网络实现多尺度检测,优化了行人密集情况下的检测效果。其次,采用Focal-EIoU Loss作为新的损失函数来处理人群中的遮挡问题。引入边缘长度损耗和Focal L1损耗,增加IoU的损耗和梯度,从而提高回归精度。最后,在加州理工学院数据集上进行了实验。实验结果表明,该方法在加州理工学院数据集上的准确率达到95.23%,召回率达到89.57%。与原来的YOLOv3算法相比,准确率提高了3.22%,召回率提高了4.35%。验证了算法的有效性,大大提高了行人检测的性能。
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引用次数: 0
Spatial location-based outdoor mobile augmented reality 3D registration technology 基于空间定位的户外移动增强现实3D配准技术
Qian Zhou, Qing Wang, Qiang Zhong, Mao Han
Human activities are closely related to geographic location. It is proposed to combine spatial location and mobile terminal pose sensor data with meeting the characteristics of real-time accuracy and flexibility in outdoor mobile augmented reality and to realize the virtual-real superposition through the transformation relationship between 3D model coordinate system, world coordinate system, camera coordinate system, image coordinate system, and pixel coordinate system. For the limitations of the vision-based registration method in outdoor scenes, this paper derives the transformation from spatial location data to screen coordinates in detail. It gives the solution and optimization of the transformation matrix and parameters.
人类活动与地理位置密切相关。提出将室外移动增强现实中满足实时性、准确性和灵活性特点的空间定位与移动终端位姿传感器数据相结合,通过三维模型坐标系、世界坐标系、摄像机坐标系、图像坐标系、像素坐标系之间的转换关系实现虚实叠加。针对基于视觉的室外场景配准方法的局限性,本文详细推导了空间位置数据到屏幕坐标的转换。给出了变换矩阵和参数的求解和优化。
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引用次数: 0
A method for patient gait real-time monitoring based on powered exoskeleton and digital twin 一种基于动力外骨骼和数字孪生的病人步态实时监测方法
Wei Huanxia
Powered exoskeletons are a kind of wearable robotics system attached outside the limbs, providing additional force for the limbs, which plays an important role in limb rehabilitation and patient assistance. As the patient gradually recovers, the patient’s gait will change over time. Therefore, the author hopes to get real-time gait data from patients in order to provide medical guidance and help the patients recover better. Inspired by the real-time monitoring of industrial robots, the author puts forward a method of medical monitoring using digital twin onto powered exoskeletons. For cost reasons, the author uses commercially available sensors to build this system. Further, the author fabricates a demonstration system for the exoskeleton to achieve this goal together with collecting and analyzing the data.
动力外骨骼是一种附着在肢体外部的可穿戴机器人系统,为肢体提供额外的力量,在肢体康复和患者辅助中起着重要的作用。随着病人逐渐康复,病人的步态会随着时间的推移而改变。因此,作者希望能够获得患者的实时步态数据,以便为患者提供医疗指导,帮助患者更好地康复。受工业机器人实时监测的启发,作者提出了一种将数字孪生体应用于动力外骨骼的医疗监测方法。出于成本原因,作者使用市售传感器来构建该系统。为了实现这一目标,作者制作了一个外骨骼演示系统,并对数据进行了收集和分析。
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引用次数: 0
TRFit: learning 3D point cloud normal estimation with transformer TRFit:用变压器学习三维点云法向估计
Hongwen Liu, Yufeng Wang, Z. Ma
In this study, we provide an approach named TRFit for unstructured 3D point cloud normal estimation. It handles noise and uneven densities point clouds well. Recently, learning-based normal estimation methods have significantly outperformed traditional methods on benchmark normal estimation datasets. In order to estimate normals, they frequently employed neural networks to learn point-wise weights for weighted least squares polynomial surfaces fitting. However, existing methods often ignore local geometric relationships, which will make the fitted surface significantly different from the real. To this end, we propose to use graph convolutional to learn local structural information. Meanwhile, we suggest the Geometric Relation Transformer (GRT), a transformer-based scale aggregation module, to fully utilize points from various neighborhood sizes. It can adaptively capture the relations between different regions. We achieve state-of-the-art results on the baseline normal estimation dataset, and experimental results show that TRFit obviously improves the accuracy of normal estimates, preserves their details. Moreover, it exhibits robustness to noise, density variations, and outliers. Besides, we demonstrate its application to surface reconstruction and denoising.
在本研究中,我们提供了一种名为TRFit的非结构化三维点云法向估计方法。它处理噪音和不均匀密度点云很好。近年来,基于学习的正态估计方法在基准正态估计数据集上的性能明显优于传统方法。为了估计正态线,他们经常使用神经网络来学习加权最小二乘多项式曲面拟合的点加权。然而,现有的拟合方法往往忽略了局部几何关系,使拟合曲面与实际曲面存在较大差异。为此,我们提出使用图卷积来学习局部结构信息。同时,我们建议使用基于变压器的尺度聚合模块几何关系变压器(Geometric Relation Transformer, GRT)来充分利用不同邻域大小的点。它可以自适应地捕捉不同区域之间的关系。我们在基线正态估计数据集上取得了最先进的结果,实验结果表明,TRFit明显提高了正态估计的准确性,保留了它们的细节。此外,它对噪声、密度变化和异常值具有鲁棒性。此外,我们还演示了它在表面重建和去噪中的应用。
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引用次数: 0
An intelligent blind people guide cane design based on Arduino 一种基于Arduino的智能盲人导盲杖设计
Chang Liu, Hui Mao
This paper designs an intelligent blind people guide cane based on the analysis of basic functions of conventional guide canes. The hardware components of the cane design includes environmental monitoring modules, acoustic distance measurement module, vibration alert module and GPS positioning module etc. The system can provide real-time alerting of obstacles ahead and route selection through analyzing road conditions by means of GPS positioning module. The cane’s hardware system is designed with monitoring and analysis software to enhance the user’s using experience, while ensuring the functions of user security.
本文在分析传统导盲杖基本功能的基础上,设计了一种智能盲人导盲杖。手杖设计的硬件部分包括环境监测模块、声距离测量模块、振动报警模块和GPS定位模块等。该系统通过GPS定位模块对路况进行分析,实现前方障碍物的实时预警和路线选择。手杖的硬件系统设计了监控和分析软件,增强了用户的使用体验,同时保证了用户的安全功能。
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引用次数: 1
Research on numerical simulation of deep seabed blowout and oil spill range 深海井喷及溢油范围的数值模拟研究
Yi Huang, Yuhang Zhao, Yulong Han, Bin Zhong, YangFan Lao, Di Wu
Exploration and development in the far-reaching sea of the South China Sea faces many challenges, such as great difficulty in well control. Once an oil spill accident occurs, it is necessary to deal with the oil spill from submarine wells in time to avoid major environmental pollution. In order to study the spreading range of submarine blowout oil and its influencing factors, this paper uses the Fluent platform, combining with the standard 𝑘െ𝜀 turbulence model and the multiphase flow VOF model, to preliminarily establish a submarine blowout oil spill model. This paper also analyzes the influence of ocean current velocity, blowout velocity, oil spill density on underwater migration trajectory and oil spill diffusion range. Numerical simulation results show that under the conditions of higher ocean current velocity, lower blowout velocity and greater oil spill density, the oil has a long underwater migration time, and the position where the oil first floats to the sea surface is far away from the wellhead level and will cause a greater range of oil spill pollution. This research is of practical significance for the rescue and rescue of blowouts and the emergency prediction and disposal of oil spills on deep water offshore platforms.
南海广阔海域的勘探开发面临诸多挑战,如井控难度大等。一旦发生溢油事故,必须及时处理海底油井溢油,避免对环境造成重大污染。为了研究海底井喷油的扩散范围及其影响因素,本文利用Fluent平台,结合标准的𝑘湍流模型和多相流VOF模型,初步建立了海底井喷油泄漏模型。分析了海流速度、井喷速度、溢油密度对水下运移轨迹和溢油扩散范围的影响。数值模拟结果表明,在较高的海流速度、较低的井喷速度和较大的溢油密度条件下,浮油在水下迁移时间较长,浮油首先浮到海面的位置远离井口水平面,会造成更大范围的溢油污染。本研究对深水海上平台井喷抢险救援和溢油应急预测与处置具有重要的现实意义。
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引用次数: 0
Learning anisotropy and asymmetry geometric features for medical image segmentation 学习医学图像分割的各向异性和不对称几何特征
Ankun Li, Li Liu
Finding contours of interest from medical images is an important task in the field of medical image analysis. The current deep learning-based image segmentation approaches have obtained promising results. However, most of these models do not take into account the anisotropy and asymmetric features which play an important role in describing the target contours. In order to address this issue, we propose new loss-function applied to the deep learning model with dense distance regression, which can benefit the edge-based features, thus able to improve the stability of the segmentation procedure and to reduce the probability of outliers in the segmentation results. The introduced loss function is embedded into the deep learning model, which can perform an end-to-end image segmentation procedure for medical images. Ablation experiments were done with other loss functions and three datasets were used to verify whether this loss function is effective. SOTA results were obtained for the proposed loss function in this paper compared to the recently designed method for reducing the boundary error.
从医学图像中寻找感兴趣的轮廓是医学图像分析领域的一项重要任务。目前基于深度学习的图像分割方法已经取得了很好的效果。然而,这些模型大多没有考虑到各向异性和不对称特征,而这些特征在描述目标轮廓时起着重要作用。为了解决这一问题,我们提出了一种新的损失函数应用于密集距离回归的深度学习模型,该模型可以利用基于边缘的特征,从而提高分割过程的稳定性,降低分割结果中异常点的概率。将引入的损失函数嵌入到深度学习模型中,该模型可以对医学图像执行端到端的图像分割过程。使用其他损失函数进行烧蚀实验,并使用三个数据集验证该损失函数是否有效。将本文提出的损失函数与最近设计的减少边界误差的方法进行了比较,得到了SOTA结果。
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引用次数: 0
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Fifth International Conference on Computer Information Science and Artificial Intelligence
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