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arXiv 2024年

作者： Wan, Zhaoliang Ling, Yonggen Yi, Senlin Qi, Lu Lee, Wangwei Lu, Minglei Yang, Sicheng Teng, Xiao Lu, Peng Yang, Xu Yang, Ming-Hsuan Cheng, Hui School of Computer Science and Engineering Sun Yat-sen University Guangzhou China Robotics X Tencnet Shenzhen China The University of California Merced Merced United States Chinese Academic of Sciences Automation Institute Beijing China

This paper addresses the scarcity of large-scale datasets for accurate object-in-hand pose estimation, which is crucial for robotic in-hand manipulation within the "Perception-Planning-Control" paradigm. Specifically, we introduce VinT-6D, the first extensive multi-modal dataset integrating vision, touch, and proprioception, to enhance robotic manipulation. VinT-6D comprises 2 million VinT-Sim and 0.1 million VinT-Real splits, collected via simulations in MuJoCo and Blender and a custom-designed real-world platform. This dataset is tailored for robotic hands, offering models with whole-hand tactile perception and high-quality, well-aligned data. To the best of our knowledge, the VinT-Real is the largest considering the collection difficulties in the real-world environment so that it can bridge the gap of simulation to real compared to the previous works. Built upon VinT-6D, we present a benchmark method that shows significant improvements in performance by fusing multi-modal information. The project is available at https://***/. © 2024, CC BY.

关键词： Robot programming

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Diagnosis of Faults in Edge-PLC using Optimized Deep Learning models in Industrial IoT

Diagnosis of Faults in Edge-PLC using Optimized Deep Learnin...

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International Conference on Advanced Computing and Communication Systems (ICACCS)

作者： A. Kishore Kumar T Rajesh Kumar R. Balamanigandan A. Sasi Kumar Mahaveerakannan R Department of Robotics and Automation Sri Ramakrishna Engineering College Coimbatore Tamilnadu Department of Computer Science and Engineering Saveetha School of Engineering SIMATS Chennai Tamil Nadu Department Of Cloud Technology & Data Science Institute Of Engineering & Technology Srinivas University Surathkal

Industrial Internet of Things (IIoT) may allow for the state of equipment to be monitored and defects to be detected before they become serious, helping smart factories keep up with the rising demands for safety and efficiency brought on by worldwide competition. In the case of Cloud Computing, data-driven approaches implemented in the cloud are used to first train the model using a vast quantity of raw data, and then end-machines send their real-time readings for processing at the cloud data centre. It is possible, however, that this will impose a significant delay and a high computational cost. In this study, we take into account a hierarchical structure in which edge-PLCs are used to collect sensed data locally and lessen the burden on long-distance connections. Due to the fact that a single responsibility may be associated with multiple swaying topographies, we aim to first reduce the sum of features required to identify a fault, and then identify the smallest possible set of edge-PLCs that still accounts for all of the most important ones, all while keeping deployment costs to a minimum. To address this, we present an Enhanced Harris Hawkins Optimization (EHHO) approach to tackling the features selection issue, followed by the assortment of edge-PLCs through the set coverage problematic. The model named Residual Attention Neural Network (RANN) is proposed the in this study to forecast the fault detection procedure. Residual Neural Network (ResNet) is used by RANN to help diagnose problems, alongside the knowledge of experts. We evaluate the performance of our technique in comparison to existing AI-based approaches, such as the lregression model and its expansions, by simulating on a real data trail. The findings confirm competence and presentation of the suggested approach, which meets or even surpasses the correctness of approaches employing the entire collection of data.

关键词： Fault diagnosis Deep learning Solid modeling Cloud computing Image edge detection Computational modeling Fault detection

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Incremental Joint Learning of Depth, Pose and Implicit Scene Representation on Monocular Camera in Large-scale Scenes

arXiv

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arXiv 2024年

作者： Deng, Tianchen Wang, Nailin Wang, Chongdi Yuan, Shenghai Wang, Jingchuan Wang, Danwei Chen, Weidong The Institute of Medical Robotics Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education Shanghai200240 China The School of Electrical and Electronic Engineering Nanyang Technological University Singapore

Dense scene reconstruction for photo-realistic view synthesis has various applications, such as VR/AR, autonomous vehicles. However, most existing methods have difficulties in large-scale scenes due to three core challenges: (a) inaccurate depth input. Accurate depth input is impossible to get in real-world large-scale scenes. (b) inaccurate pose estimation. Existing methods are not robust enough with the growth of cumulative errors in large scenes and long sequence. (c) insufficient scene representation capability. A single global radiance field lacks the capacity to effectively scale to large-scale scenes. To this end, we propose an incremental joint learning framework, which can achieve accurate depth, pose estimation, and large-scale scene reconstruction. A vision transformer-based network is adopted as the backbone to enhance performance in scale information estimation. For pose estimation, a feature-metric bundle adjustment (FBA) method is designed for accurate and robust camera tracking in large-scale scenes. In terms of implicit scene representation, we propose an incremental scene representation method to construct the entire large-scale scene as multiple local radiance fields to enhance the scalability of 3D scene representation. Extended experiments have been conducted to demonstrate the effectiveness and accuracy of our method in depth estimation, pose estimation, and large-scale scene reconstruction. The code will be open-sourced upon paper acceptance. © 2024, CC BY-NC-SA.

关键词： Depth perception

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A Compact LiDAR Odometry and Mapping with Dynamic Removal

A Compact LiDAR Odometry and Mapping with Dynamic Removal

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IEEE International Conference on Unmanned Systems (ICUS)

作者： Meifeng Zhang Yanpeng Jia Shiliang Shao Shiyi Wang College of Artificial Intelligence Baoding University Baoding China Chinese Academy of Sciences The State Key Laboratory of Robotics at Shenyang Institute of Automation Shenyang China School of Information Science and Engineering Shenyang Ligong University Shenyang China

ISBN: (数字)9798350384185

ISBN: (纸本)9798350384192

Real-time state estimation and mapping is a funda-mental function of unmanned systems. In this paper, we propose a compact 3D Lidar odometry and mapping method (C-LOAM) for real-time 6-DOF pose estimation and map construction for unmanned ground vehicles. Our approach firstly remove dynamic objects from the environment by comparing differences between two consecutive range images. We then extract ground points from the range image. The remaining points are segmented in the range image to obtain robust feature points for the registration stage. After performing two-stage scan-matching, we use the ex-tracted ground points to impose ground constraints and leverage the local feature sub map for loop closure detection. By employing various data reuse strategies, we minimize memory consumption, creating a compact and accurate system. Experiments on multiple publicly available datasets demonstrate that our system provides more accurate localization and higher-quality maps compared to other state-of-the-art methods.

关键词： Location awareness Laser radar Accuracy Three-dimensional displays Autonomous systems Pose estimation Feature extraction Real-time systems Odometry Vehicle dynamics

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DCA-Net: A W-shaped network for segmenting COVID-19 infected area from medical images

DCA-Net: A W-shaped network for segmenting COVID-19 infected...

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Image Processing, Computer Vision and Machine Learning (ICICML), International Conference on

作者： Chang Meng Liang Chen Huiqi Niu Xinyu Wang Guoxu Li Yuetao Wang School of Automation and Electrical Engineering Shenyang Ligong University Shenyang China State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang China

ISBN: (纸本)9781665464697

Coronavirus disease (COVID-19) poses a significant threat to humans in 2019. Automated and accurate segmentation of the infected region of COVID-19 computed tomography (CT) images can help doctors diagnose and treat the disease. However, the variable shape of COVID-19 infected areas, which can be easily confused with other lung tissues, poses a challenge for CT image segmentation. To address this problem, a deep learning-based convolutional neural network is proposed for the automatic segmentation of COVID-19 lung infection regions. Our proposed segmentation method uses a U-Net network as the backbone, constructed as a coarse to fine segmentation network. Firstly, we introduce our designed contour-enhanced module (CA) in the coarse segmentation network to effectively extract the lung region; secondly, we introduce our designed multi-scale feature attention module (MFA) in the fine segmentation network to enable the network to extract spatial efficiently and channel information, better focus on quantifying the effective region, and enhance the network segmentation effect. Using the COVID-19 public dataset, the proposed network achieves the best segmentation results. The Dice, IOU, F1-Score, and Sensitivity metrics reach 88.74%, 78.73%, 86.58%, and 88.16%, respectively. DCA-Net can efficiently segment the COVID-19 infected region, which can be of great clinical benefit.

关键词： COVID-19 Image segmentation Sensitivity Shape Computed tomography Lung Medical services

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Analog Magnetic Sensor-Robotic System for Steel Structure Inspection

Analog Magnetic Sensor-Robotic System for Steel Structure In...

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IEEE/SICE International Symposium on System Integration

作者： Anh Quyen Pham Duc La Hung Manh La AIR-VIET Corporation in Vietnam Kahlert School of Computing University of Utah Salt Lake City UT USA Department of Computer Science and Engineering Advanced Robotics and Automation (ARA) Lab University of Nevada Reno NV USA

More and more steel bridge collapse accidents occur worldwide due to broken steel structures, causing significant l oss o f l ife a nd p roperty t o m ankind. T his has spurred much research into robots that can climb steel surfaces and carry smart sensors with the desire to assist inspectors in inspecting steel defects. However, current non-destructive evaluation (NDE) sensors such as eddy-current and giant magnetoresistance (GMR) are not able to be integrated with the robotic platforms due to their large size, mass, and limited ability to interface. More importantly, these NDE sensors may fail to detect hidden and underlying cracks. Therefore, in this paper, we present a novel and compact analog magnetic sensor system to detect different types of cracks in steel. Validations are carried out on a steel test plate 600mm long, 140mm wide, and 6mm thick, and precision machined by CNCs to produce various man-made cracks including penetrating cracks, surface cracks, internal/hidden cracks, and underlying cracks. These cracks have a width varying from 0.6mm to 1.2mm with different depth levels. Combined with applying the Kalman filter t o t he n oise r eduction s ystem, t he r esults o btained are accurate, and the response speed is fast. The sensor is small enough and has firmware/software with an interface to make it possible to be integrated with a small drone or a climbing robot to perform an in-depth inspection of the steel bridge. A demonstration of the system can be seen in this video: https://***/OrdpLdnFlYk

关键词：

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Compact Multiple Functional Integrated Medical Robotic End-Effector for Neurosurgery*

Compact Multiple Functional Integrated Medical Robotic End-E...

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WRC Symposium on Advanced robotics and automation (WRC SARA)

作者： Yinjia Zhang Weihan Li Haotian Wang Xudong Ma Qian Yang Jie Tang Yuanzheng Hou Yida David Hu Changsheng Li Wenyong Liu Junchen Wang Bai-Quan Su Medical Robotics Laboratory School of Intellgent Engineering and Automation Beijing University of Posts and Telecommunications Beijing China Graduate School of Engineering The University of Tokyo Tokyo Japan Department of Neurosurgery Xuanwu Hospital Capital Medical University Beijing China Harvard Medical School Brigham and Women’s Hospital Boston MA USA School of Mechatronical Engineering Beijing Institute of Technology Beijing China Key Laboratory for Biomechanics and Mechanobiology of Chinese Education Ministry Beijing Advanced Innovation Centre for Biomedical Engineering School of Biological Science and Medical Engineering Beihang University Beijing China School of Mechanical Engineering and Automation Beihang University Beijing China

ISBN: (数字)9798331506100

ISBN: (纸本)9798331506117

In neurosurgery, surgeons use single-function surgical tools such as aspirator and electric-coagulation cutters to deal with blood vessel bleeding. Compared with multi-functional surgical tools, the surgical efficiency of using single-function tools is lower. In this paper, a multiple functional integrated medical robotic end-effector which integrates CCD imaging, electric-coagulation and suction is designed. The end-effector can be installed at the end of the serial robotic arm. The CAD model of the end-effector was constructed, and the motion analysis is carried out. The end-effector is proved to be effective by three experiments. The operator can use the design to suction blood, spotting of bleeding spots, and electric-coagulation lesion. In operations, there is no need to change the surgical tools, improve the efficiency of the operation.

关键词： Charge coupled devices Solid modeling Medical robotics Design automation Instruments Prototypes Three-dimensional printing

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Distributed Event-Triggered Formation Control for a Multi-robotic Fish System

Distributed Event-Triggered Formation Control for a Multi-ro...

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International Conference on Guidance, Navigation and Control, ICGNC 2022

作者： Dai, Shijie Wu, Zhengxing Tan, Min Yu, Junzhi School of Artificial Intelligence University of Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing100190 China State Key Laboratory for Turbulence and Complex System Department of Advanced Manufacturing and Robotics BIC-ESAT College of Engineering Peking University Beijing100871 China

ISBN: (纸本)9789811966125

This paper investigates the formation control problem for a multi-robotic fish system and a distributed event-triggered-based formation control framework is proposed. The framework consists of a communication topology, a distributed formation control law, and a dynamic event-triggered communication mechanism. In particular, a position-based formation control law is presented to drive the multi-robotic fish system to an anticipated configuration based on local measurements while keeping pace with a moving target. Meanwhile, a dynamic event-triggered mechanism is utilized to measure importance of the interactive information and decide the communication timing. The proposed formation control method shows its merits to greatly reduce communication consumption with a limited loss of formation control performance. Finally, simulations with quantitative comparisons are presented to verify the effectiveness of the proposed framework. This formation control framework provides a solid foundation for future marine cooperative control of the multi-robotic fish system. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Multi agent systems

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A Vision-Based Two-Stage Fruit Outer Diameter Detection Method

A Vision-Based Two-Stage Fruit Outer Diameter Detection Meth...

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2024 IEEE International Conference on robotics and Biomimetics, ROBIO 2024

作者： Hao, Yifei Yan, Shuaizheng Wu, Zhengxing He, Bingwei Li, Chenghua Yu, Junzhi Fuzhou University Department of Mechanical Engineering Fuzhou350108 China Institute of Automation Chinese Academy of Sciences Laboratory of Cognitive and Decision Intelligence for Complex Systems Beijing100190 China Institute of Automation Chinese Academy of Sciences Key Laboratory of Cognition and Decision Intelligence for Complex Systems Beijing100190 China School of Artificial Intelligence University of Chinese Academy of Sciences Beijing100049 China Guangzhou Shenghui Cleaning Service Co. Ltd. Guangzhou511436 China BIC-ESAT College of Engineering Peking University State Key Laboratory for Turbulence and Complex Systems Department of Advanced Manufacturing and Robotics Beijing100871 China

ISBN: (纸本)9781665481090

Regarding the mobile monitoring system in agricultural automation, the outer diameter monitoring of greenhouse vegetables has significant implications for accurately regulating fruit growth and cultivation plans. In this paper, a novel vision-based two-stage outer diameter detection method is proposed, including the segmentation and outer diameter calculation of greenhouse tomato images. To address the issues of multiple tomatoes in a single image and the similarity in color between tomatoes and the background, a YOLOv8 network embedded with convolutional block attention module is constructed for detection and segmentation in the first stage. Additionally, to solve the problem of inaccurate outer diameter detection caused by different tomato poses and pedicles, a defined central axis method is proposed, which can adaptively filter out the maximum outer diameter candidates and calculate accurate values utilizing depth information in the world coordinate system. The backbone network is fine-tuned on the pre-trained YOLOv8 model with 1000 tomato images. Extensive measurement experiments, involving 215 tomatoes in 80 images, is conducted to validate the effectiveness of our proposed approach. Compared to the ground truth, we obtain a measurement error of 4.27 mm, the coefficient of determination value R2 is 0.9349. © 2024 IEEE.

关键词： Fruits

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Modeling of the Constant-Current Stimuli Response of a Bio-Robot for Long-Term Motion Control

Modeling of the Constant-Current Stimuli Response of a Bio-R...

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IEEE International Conference on robotics and Biomimetics

作者： Jie Zhou Yuan Fang Yang Chen Yao Li Bing Li Guangdong Provincial Key Laboratory of Intelligent Morphing Mechanisms and Adaptive Robotics Key University Laboratory of Mechanism & Machine Theory and Intelligent Unmanned Systems of Guangdong and with School of Mechanical Engineering and Automation Harbin Institute of Technology Shenzhen China

ISBN: (数字)9798331509644

ISBN: (纸本)9798331509651

Bio-robots continue to receive attention because of their small size and low power consumption. Unfortunately, it currently faces two major obstacles before practical application. The first is the habituation issue, insects are difficult to be effectively controlled for a long time by electrical stimuli signals. The other one is the lack of model for motion control. In this research, we established a stimuli-response model for cockroach bio-robot based on long time current. A more convenient optic lobe implantation method has been proposed, which has lower attenuation and better stimuli effect. Constant electrical stimuli also significantly increased the number of effective controls for crawling. A cockroach bio-robot stimuli distance response model was established and validated with experiment data. Five parameters were including in this model, namely sex, length, weight, current amplitude and equivalent stiumated-number. This model can predict the movement distance of biological robots well.

关键词： Power demand Biological system modeling Insects Optical attenuators Predictive models Brain modeling Data models Motion control Robots Faces

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