{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T17:12:30Z","timestamp":1791047550728,"version":"4.1.0"},"reference-count":17,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2022,6,16]],"date-time":"2022-06-16T00:00:00Z","timestamp":1655337600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"JSPS Grants-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)","award":["18H05473"],"award-info":[{"award-number":["18H05473"]}]},{"name":"JSPS Grants-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)","award":["18H05895"],"award-info":[{"award-number":["18H05895"]}]},{"name":"JSPS Grants-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)","award":["20H04214"],"award-info":[{"award-number":["20H04214"]}]},{"name":"JSPS Grant-in-Aid for Scientific Research (B)","award":["18H05473"],"award-info":[{"award-number":["18H05473"]}]},{"name":"JSPS Grant-in-Aid for Scientific Research (B)","award":["18H05895"],"award-info":[{"award-number":["18H05895"]}]},{"name":"JSPS Grant-in-Aid for Scientific Research (B)","award":["20H04214"],"award-info":[{"award-number":["20H04214"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Nowadays, improving the traffic safety of visually impaired people is a topic of widespread concern. To help avoid the risks and hazards of road traffic in their daily life, we propose a wearable device using object detection techniques and a novel tactile display made from shape-memory alloy (SMA) actuators. After detecting obstacles in real-time, the tactile display attached to a user\u2019s hands presents different tactile sensations to show the position of the obstacles. To implement the computation-consuming object detection algorithm in a low-memory mobile device, we introduced a slimming compression method to reduce 90% of the redundant structures of the neural network. We also designed a particular driving circuit board that can efficiently drive the SMA-based tactile displays. In addition, we also conducted several experiments to verify our wearable assistive device\u2019s performance. The results of the experiments showed that the subject was able to recognize the left or right position of a stationary obstacle with 96% accuracy and also successfully avoided collisions with moving obstacles by using the wearable assistive device.<\/jats:p>","DOI":"10.3390\/s22124537","type":"journal-article","created":{"date-parts":[[2022,6,19]],"date-time":"2022-06-19T21:19:26Z","timestamp":1655673566000},"page":"4537","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["A Wearable Assistive Device for Blind Pedestrians Using Real-Time Object Detection and Tactile Presentation"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3257-3340","authenticated-orcid":false,"given":"Junjie","family":"Shen","sequence":"first","affiliation":[{"name":"Department of Pure and Applied Physics, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiwen","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Pure and Applied Physics, Faculty of Science and Engineering, Waseda University, Tokyo 169-8555, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3014-6970","authenticated-orcid":false,"given":"Hideyuki","family":"Sawada","sequence":"additional","affiliation":[{"name":"Department of Pure and Applied Physics, Faculty of Science and Engineering, Waseda University, Tokyo 169-8555, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,6,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Liu, Z., Li, J., Shen, Z., Huang, G., Yan, S., and Zhang, C. (2017, January 22\u201329). Learning Efficient Convolutional Networks through Network Slimming. Proceedings of the 2017 IEEE International Conference on Computer Vision (ICCV), Venice, Italy.","DOI":"10.1109\/ICCV.2017.298"},{"key":"ref_2","unstructured":"(2022, April 23). Blindness and Vision Impairment. Available online: https:\/\/www.who.int\/news-room\/fact-sheets\/detail\/blindness-and-visual-impairment."},{"key":"ref_3","unstructured":"Wagner, C.R., Lederman, S.J., and Howe, R.D. (2002, January 24\u201325). A Tactile Shape Display Using RC Servomotors. Proceedings of the 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. HAPTICS 2002, Orlando, FL, USA."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"2118","DOI":"10.1121\/1.1510140","article-title":"A Broadband Tactile Array on the Fingertip","volume":"112","author":"Summers","year":"2002","journal-title":"J. Acoust. Soc. 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Proceedings of the IEEE Computer Vision and Pattern Recognition, Long Beach, CA, USA.","DOI":"10.1109\/CVPR.2019.00720"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/22\/12\/4537\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T23:32:49Z","timestamp":1760139169000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/22\/12\/4537"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,6,16]]},"references-count":17,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2022,6]]}},"alternative-id":["s22124537"],"URL":"https:\/\/doi.org\/10.3390\/s22124537","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,6,16]]}}}