A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests

Abstract This paper aims to develop a position tracking algorithm by which a rat in a radial arm maze can be accurately located in real time. An infrared (IR) night-vision camera was hung above the maze to capture IR images of the rat. The IR images were binarized and then duplicated for subsequent...

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Autores principales:	Chi-Chun Chen, Liang-Jyun Hong, Jian-Yong Wang, Ching-Ping Chang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/11f3c2eec63b434d91ca5923e3031bc5
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spelling	oai:doaj.org-article:11f3c2eec63b434d91ca5923e3031bc52021-11-21T12:25:24ZA robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests10.1038/s41598-021-01974-02045-2322https://doaj.org/article/11f3c2eec63b434d91ca5923e3031bc52021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01974-0https://doaj.org/toc/2045-2322Abstract This paper aims to develop a position tracking algorithm by which a rat in a radial arm maze can be accurately located in real time. An infrared (IR) night-vision camera was hung above the maze to capture IR images of the rat. The IR images were binarized and then duplicated for subsequent intersection and opening operations. Due to simple operations and a high robustness against the noise spots formed by the droppings of the rat, it took just minutes to process more than 9000 frames, and an accuracy above 99% was reached as well. The maze was intruded by an experimenter to further test the robustness, and the accuracy slightly fell to 98%. For comparison purposes, the same experiments were carried out using a pre-trained YOLO v2 model. The YOLO counterpart gave an accuracy beyond 97% in the absence and in the presence of the intruder. In other words, this work slightly outperformed the YOLO counterpart in terms of the accuracy in both cases, which indicates the robustness of this work. However, it took the YOLO counterpart an hour or so to locate a rat contained in the frames, which highlights the contribution of this work.Chi-Chun ChenLiang-Jyun HongJian-Yong WangChing-Ping ChangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chi-Chun Chen Liang-Jyun Hong Jian-Yong Wang Ching-Ping Chang A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
description	Abstract This paper aims to develop a position tracking algorithm by which a rat in a radial arm maze can be accurately located in real time. An infrared (IR) night-vision camera was hung above the maze to capture IR images of the rat. The IR images were binarized and then duplicated for subsequent intersection and opening operations. Due to simple operations and a high robustness against the noise spots formed by the droppings of the rat, it took just minutes to process more than 9000 frames, and an accuracy above 99% was reached as well. The maze was intruded by an experimenter to further test the robustness, and the accuracy slightly fell to 98%. For comparison purposes, the same experiments were carried out using a pre-trained YOLO v2 model. The YOLO counterpart gave an accuracy beyond 97% in the absence and in the presence of the intruder. In other words, this work slightly outperformed the YOLO counterpart in terms of the accuracy in both cases, which indicates the robustness of this work. However, it took the YOLO counterpart an hour or so to locate a rat contained in the frames, which highlights the contribution of this work.
format	article
author	Chi-Chun Chen Liang-Jyun Hong Jian-Yong Wang Ching-Ping Chang
author_facet	Chi-Chun Chen Liang-Jyun Hong Jian-Yong Wang Ching-Ping Chang
author_sort	Chi-Chun Chen
title	A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
title_short	A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
title_full	A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
title_fullStr	A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
title_full_unstemmed	A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
title_sort	robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/11f3c2eec63b434d91ca5923e3031bc5
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A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests

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