Video-based Evaluation of Infant Crawling toward Quantitative Assessment of Motor Development
Video-based Evaluation of Infant Crawling toward Quantitative Assessment of Motor Development
复制标题
基于视频的婴儿爬行评估以定量评估运动发育
DOI：
10.1038/s41598-020-67855-0
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发表时间：
2020
影响因子：
4.6
通讯作者：
and Toshio Tsuji
中科院分区：
文献类型：
--
作者：
Katsuaki Kawashima;Yasuko Funabiki;Shino Ogawa;Hideaki Hayashi;Zu Soh;Akira Furui;Ayumi Sato;Taiko Shiwa;Hiroki Mori;Koji Shimatani;Haruta Mogami;Yukuo Konishi;and Toshio Tsuji
本研究提出了一种婴幼儿运动发育的定量评价支持系统，并利用该系统对手足爬行和腹部爬行进行了分析。该系统使用两台摄像机测量运动，并通过对原始图像的背景和帧间减法提取运动特征。计算每个爬行周期的8个评价指标，实现对婴儿无标记运动的分析。对16名10月龄婴儿的横断面分析证实，手膝爬行和腹部爬行在8项指标中的5项存在显著差异，表明系统能够定量区分爬行和爬行。对一名7-10月龄婴儿的纵向分析也表明，所提出的定量指标可以跟踪爬行特征的变化，评价婴儿的运动发育过程。实验结果表明，该系统可以在临床实践中提供诊断支持。
This study proposes a quantitative evaluation support system for infant motor development and uses the system to analyze hands-and-knees creeping and belly crawling. This system measures movements using two video cameras and extracts movement features via background and inter-frame subtractions of original images. Eight evaluation indices for each crawling cycle are calculated, enabling markerless movement analysis of infants. Cross-sectional analysis of 16 10-month-olds confirmed significant differences between hands-and-knees creeping and belly crawling in five of the eight indices, demonstrating the system capability to quantitatively differentiate between creeping and crawling. Longitudinal analysis of one infant (aged 7–10 months) also suggested that the proposed quantitative indices can follow changes in crawling characteristics and evaluate infants’ motor development process. The results from the experiments suggest that the proposed system may enable diagnosis support in clinical practice.