Cyborg and bionic systems (Washington, D.C.)最新文献_第9页

Generalized Pose Decoupled Network for Unsupervised 3D Skeleton Sequence-Based Action Representation Learning. 基于无监督三维骨架序列动作表示学习的广义姿态解耦网络。

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2022-01-01 DOI: 10.34133/cbsystems.0002

Mengyuan Liu, Fanyang Meng, Yongsheng Liang

{"title":"Generalized Pose Decoupled Network for Unsupervised 3D Skeleton Sequence-Based Action Representation Learning.","authors":"Mengyuan Liu, Fanyang Meng, Yongsheng Liang","doi":"10.34133/cbsystems.0002","DOIUrl":"https://doi.org/10.34133/cbsystems.0002","url":null,"abstract":"<p><p>Human action representation is derived from the description of human shape and motion. The traditional unsupervised 3-dimensional (3D) human action representation learning method uses a recurrent neural network (RNN)-based autoencoder to reconstruct the input pose sequence and then takes the midlevel feature of the autoencoder as representation. Although RNN can implicitly learn a certain amount of motion information, the extracted representation mainly describes the human shape and is insufficient to describe motion information. Therefore, we first present a handcrafted motion feature called pose flow to guide the reconstruction of the autoencoder, whose midlevel feature is expected to describe motion information. The performance is limited as we observe that actions can be distinctive in either motion direction or motion norm. For example, we can distinguish \"sitting down\" and \"standing up\" from motion direction yet distinguish \"running\" and \"jogging\" from motion norm. In these cases, it is difficult to learn distinctive features from pose flow where direction and norm are mixed. To this end, we present an explicit pose decoupled flow network (PDF-E) to learn from direction and norm in a multi-task learning framework, where 1 encoder is used to generate representation and 2 decoders are used to generating direction and norm, respectively. Further, we use reconstructing the input pose sequence as an additional constraint and present a generalized PDF network (PDF-G) to learn both motion and shape information, which achieves state-of-the-art performances on large-scale and challenging 3D action recognition datasets including the NTU RGB+D 60 dataset and NTU RGB+D 120 dataset.</p>","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":"2022 ","pages":"0002"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10076048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9289631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Classification of Soft Tissue Sarcoma Specimens with Raman Spectroscopy as Smart Sensing Technology 拉曼光谱智能传感技术在软组织肉瘤分类中的应用

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-12-06 DOI: 10.34133/2021/9816913

Liming Li, Vamiq M. Mustahsan, Guangyu He, F. Tavernier, Gurtej Singh, B. Boyce, F. Khan, I. Kao

{"title":"Classification of Soft Tissue Sarcoma Specimens with Raman Spectroscopy as Smart Sensing Technology","authors":"Liming Li, Vamiq M. Mustahsan, Guangyu He, F. Tavernier, Gurtej Singh, B. Boyce, F. Khan, I. Kao","doi":"10.34133/2021/9816913","DOIUrl":"https://doi.org/10.34133/2021/9816913","url":null,"abstract":"Intraoperative confirmation of negative resection margins is an essential component of soft tissue sarcoma surgery. Frozen section examination of samples from the resection bed after excision of sarcomas is the gold standard for intraoperative assessment of margin status. However, it takes time to complete histologic examination of these samples, and the technique does not provide real-time diagnosis in the operating room (OR), which delays completion of the operation. This paper presents a study and development of sensing technology using Raman spectroscopy that could be used for detection and classification of the tumor after resection with negative sarcoma margins in real time. We acquired Raman spectra from samples of sarcoma and surrounding benign muscle, fat, and dermis during surgery and developed (i) a quantitative method (QM) and (ii) a machine learning method (MLM) to assess the spectral patterns and determine if they could accurately identify these tissue types when compared to findings in adjacent H&E-stained frozen sections. High classification accuracy (>85%) was achieved with both methods, indicating that these four types of tissue can be identified using the analytical methodology. A hand-held Raman probe could be employed to further develop the methodology to obtain spectra in the OR to provide real-time in vivo capability for the assessment of sarcoma resection margin status.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":"2021 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41401671","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

Application Research on Optimization Algorithm of sEMG Gesture Recognition Based on Light CNN+LSTM Model 基于Light CNN+LSTM模型的表面肌电信号手势识别优化算法应用研究

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-11-08 DOI: 10.34133/2021/9794610

Dianchun Bai, Tie Liu, Xinghua Han, Hongyu Yi

引用次数: 20

Self-Assembly of DNA Molecules: Towards DNA Nanorobots for Biomedical Applications DNA分子的自组装:迈向生物医学应用的DNA纳米机器人

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-10-19 DOI: 10.34133/2021/9807520

Yong Hu

{"title":"Self-Assembly of DNA Molecules: Towards DNA Nanorobots for Biomedical Applications","authors":"Yong Hu","doi":"10.34133/2021/9807520","DOIUrl":"https://doi.org/10.34133/2021/9807520","url":null,"abstract":"DNA nanotechnology takes DNA molecule out of its biological context to build nanostructures that have entered the realm of robots and thus added a dimension to cyborg and bionic systems. Spurred by spring-like properties of DNA molecule, the assembled nanorobots can be tuned to enable restricted, mechanical motion by deliberate design. DNA nanorobots can be programmed with a combination of several unique features, such as tissue penetration, site-targeting, stimuli responsiveness, and cargo-loading, which makes them ideal candidates as biomedical robots for precision medicine. Even though DNA nanorobots are capable of detecting target molecule and determining cell fate via a variety of DNA-based interactions both in vitro and in vivo, major obstacles remain on the path to real-world applications of DNA nanorobots. Control over nanorobot's stability, cargo loading and release, analyte binding, and dynamic switching both independently and simultaneously represents the most eminent challenge that biomedical DNA nanorobots currently face. Meanwhile, scaling up DNA nanorobots with low-cost under CMC and GMP standards represents other pertinent challenges regarding the clinical translation. Nevertheless, DNA nanorobots will undoubtedly be a powerful toolbox to improve human health once those remained challenges are addressed by using a scalable and cost-efficient method.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48652024","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: 21

Pt/CNT Micro-Nanorobots Driven by Glucose Catalytic Decomposition 葡萄糖催化分解驱动Pt/CNT微纳米机器人

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-08-06 DOI: 10.34133/2021/9876064

Hao Wang, Jiacheng Kan, Xin Zhang, C. Gu, Zhan Yang

{"title":"Pt/CNT Micro-Nanorobots Driven by Glucose Catalytic Decomposition","authors":"Hao Wang, Jiacheng Kan, Xin Zhang, C. Gu, Zhan Yang","doi":"10.34133/2021/9876064","DOIUrl":"https://doi.org/10.34133/2021/9876064","url":null,"abstract":"Swimming micro-nanorobots have attracted researchers' interest in potential medical applications on target therapy, biosensor, drug carrier, and others. At present, the experimental setting of the swimming micro-nanorobots was mainly studied in pure water or H2O2 solution. This paper presents a micro-nanorobot that applied glucose in human body fluid as driving fuel. Based on the catalytic properties of the anode and cathode materials of the glucose fuel cell, platinum (Pt) and carbon nanotube (CNT) were selected as the anode and cathode materials, respectively, for the micro-nanorobot. The innovative design adopted the method of template electrochemical and chemical vapor deposition to manufacture the Pt/CNT micro-nanorobot structure. Both the scanning electron microscope (SEM) and transmission electron microscope (TEM) were employed to observe the morphology of the sample, and its elements were analyzed by energy-dispersive X-ray spectroscopy (EDX). Through a large number of experiments in a glucose solution and according to Stoker's law of viscous force and Newton's second law, we calculated the driving force of the fabricated micro-nanorobot. It was concluded that the structure of the Pt/CNT micro-nanorobot satisfied the required characteristics of both biocompatibility and motion.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43127525","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: 24

Human Somatosensory Processing and Artificial Somatosensation 人体体感觉加工与人工体感觉

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-07-02 DOI: 10.34133/2021/9843259

Luyao Wang, Lihua Ma, Jiajia Yang, Jinglong Wu

{"title":"Human Somatosensory Processing and Artificial Somatosensation","authors":"Luyao Wang, Lihua Ma, Jiajia Yang, Jinglong Wu","doi":"10.34133/2021/9843259","DOIUrl":"https://doi.org/10.34133/2021/9843259","url":null,"abstract":"In the past few years, we have gained a better understanding of the information processing mechanism in the human brain, which has led to advances in artificial intelligence and humanoid robots. However, among the various sensory systems, studying the somatosensory system presents the greatest challenge. Here, we provide a comprehensive review of the human somatosensory system and its corresponding applications in artificial systems. Due to the uniqueness of the human hand in integrating receptor and actuator functions, we focused on the role of the somatosensory system in object recognition and action guidance. First, the low-threshold mechanoreceptors in the human skin and somatotopic organization principles along the ascending pathway, which are fundamental to artificial skin, were summarized. Second, we discuss high-level brain areas, which interacted with each other in the haptic object recognition. Based on this close-loop route, we used prosthetic upper limbs as an example to highlight the importance of somatosensory information. Finally, we present prospective research directions for human haptic perception, which could guide the development of artificial somatosensory systems.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44083594","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: 21

Application of Interactive Video Games as Rehabilitation Tools to Improve Postural Control and Risk of Falls in Prefrail Older Adults 应用互动视频游戏作为康复工具改善体位控制和老年人跌倒风险

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-06-25 DOI: 10.34133/2021/9841342

Hammad Alhasan, P. Wheeler, D. Fong

{"title":"Application of Interactive Video Games as Rehabilitation Tools to Improve Postural Control and Risk of Falls in Prefrail Older Adults","authors":"Hammad Alhasan, P. Wheeler, D. Fong","doi":"10.34133/2021/9841342","DOIUrl":"https://doi.org/10.34133/2021/9841342","url":null,"abstract":"The purpose of this study was to examine whether interactive video game (IVG) training is an effective way to improve postural control outcomes and decrease the risk of falls. A convenience sample of 12 prefrail older adults were recruited and divided into two groups: intervention group performed IVG training for 40 minutes, twice per week, for a total of 16 sessions. The control group received no intervention and continued their usual activity. Outcome measures were centre of pressure (COP), mean velocity, sway area, and sway path. Secondary outcomes were Berg Balance Scale, Timed Up and Go (TUG), Falls Efficacy Scale International (FES-I), and Activities-Specific Balance Confidence (ABC). Assessment was conducted with preintervention (week zero) and postintervention (week eight). The intervention group showed significant improvement in mean velocity, sway area, Berg Balance Scale, and TUG (p < 0.01) compared to the control group. However, no significant improvement was observed for sway path (p = 0.35), FES-I (p = 0.383), and ABC (p = 0.283). This study showed that IVG training led to significant improvements in postural control but not for risk of falls.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43964753","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

Noninvasive Human-Prosthesis Interfaces for Locomotion Intent Recognition: A Review 用于运动意图识别的无创人-假体接口:综述

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-06-04 DOI: 10.34133/2021/9863761

Dongfang Xu, Qining Wang

{"title":"Noninvasive Human-Prosthesis Interfaces for Locomotion Intent Recognition: A Review","authors":"Dongfang Xu, Qining Wang","doi":"10.34133/2021/9863761","DOIUrl":"https://doi.org/10.34133/2021/9863761","url":null,"abstract":"The lower-limb robotic prostheses can provide assistance for amputees' daily activities by restoring the biomechanical functions of missing limb(s). To set proper control strategies and develop the corresponding controller for robotic prosthesis, a prosthesis user's intent must be acquired in time, which is still a major challenge and has attracted intensive attentions. This work focuses on the robotic prosthesis user's locomotion intent recognition based on the noninvasive sensing methods from the recognition task perspective (locomotion mode recognition, gait event detection, and continuous gait phase estimation) and reviews the state-of-the-art intent recognition techniques in a lower-limb prosthesis scope. The current research status, including recognition approach, progress, challenges, and future prospects in the human's intent recognition, has been reviewed. In particular for the recognition approach, the paper analyzes the recent studies and discusses the role of each element in locomotion intent recognition. This work summarizes the existing research results and problems and contributes a general framework for the intent recognition based on lower-limb prosthesis.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44478880","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: 21

Origami Folding by Multifingered Hands with Motion Primitives 多指手与运动原语的折纸折叠

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-05-30 DOI: 10.34133/2021/9851834

A. Namiki, Shuichi Yokosawa

引用次数: 20

Functional Electrical Stimulation of Peroneal Muscles on Balance in Healthy Females 功能性电刺激对健康女性腓肌平衡的影响

Cyborg and bionic systems (Washington, D.C.) Pub Date : 2021-05-13 DOI: 10.34133/2021/9801097

Zoe A Bamber, Wei Sun, R. S. Menon, P. Wheeler, I. Swain, D. Fong

{"title":"Functional Electrical Stimulation of Peroneal Muscles on Balance in Healthy Females","authors":"Zoe A Bamber, Wei Sun, R. S. Menon, P. Wheeler, I. Swain, D. Fong","doi":"10.34133/2021/9801097","DOIUrl":"https://doi.org/10.34133/2021/9801097","url":null,"abstract":"Balance improvement could contribute to ankle stability for the prevention of ankle sprains. Functional electrical stimulation (FES) is an effective way of augmenting muscle activity and improving balance. This study investigated the effect of FES of peroneal muscles on single-and double-leg balance. Fifteen healthy females (age = 23.1 ± 1.6 years, height = 1.63 ± 0.07 m, and weight = 63.7 ± 9.9 kg) performed single- and double-leg standing balance tests with eyes open and closed before and after 15-minute FES intervention during treadmill running at a comfortable, self-selected pace. FES of peroneal muscles was provided bilaterally, using an Odstock Dropped Foot Stimulator. The total excursion of the centre of pressure (COP) was calculated to assess the standing balance control ability. The total excursion of COP in single- and double-leg stance with eyes open reduced significantly after FES intervention by 14.7% (p < 0.001) and 5.9% (p = 0.031), respectively. The eyes-closed condition exhibited a 12.7% (p = 0.002) reduction in single-leg stance but did not significantly change in double-leg stance (p > 0.05). Limb preference did not account for balance postintervention. No significant difference in total excursion of COP was found between preferred and less preferred limbs with both visual conditions (p > 0.05). FES of peroneal muscles improved standing balance control with eyes open in double-leg and single-leg stance and with eyes closed in double-leg stance. The improvements in balance control with FES treatment did not vary concerning limb preference.","PeriodicalId":72764,"journal":{"name":"Cyborg and bionic systems (Washington, D.C.)","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69807558","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: 6