系统仿真学报 ›› 2017, Vol. 29 ›› Issue (11): 2774-2781.doi: 10.16182/j.issn1004731x.joss.201711025

• 仿真系统与技术 • 上一篇    下一篇

基于骨架匹配的人体轮廓线提取

张远1,2,3, 蒋浩1,2, 朱登明1,2, 王兆其1,2   

  1. 1.中国科学院计算技术研究所,北京 100190;
    2.移动计算与新型终端北京市重点实验室,北京 100190;
    3.中国科学院大学,北京 100049
  • 收稿日期:2016-05-10 发布日期:2020-06-05
  • 作者简介:张远(1994-),男,山西忻州,硕士生,研究方向为计算机图形学;蒋浩(1982-),男,湖南株洲,博士,助理研究员,研究方向为群体行为模拟。
  • 基金资助:
    国家自然科学基金(61173067,61379085,61532002),国家863计划(2015AA016401)

Human Contour Extraction Based on Skeleton Matching

Zhang Yuan1,2,3, Jiang Hao1,2, Zhu Dengming1,2, Wang Zhaoqi1,2   

  1. 1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing, 100190, China;
    2. Beijing Key Laboratory of Mobile Computing and Pervasive Device, Beijing, 100190, China;
    3. University of Chinese Academy of Sciences, Beijing, 100049, China
  • Received:2016-05-10 Published:2020-06-05

摘要: 为了生成静态图像中人体的轮廓线,提出了一种基于骨架匹配的轮廓线提取方法。在图像中找到可以表征人体骨架的骨架关键点,通过骨架关键点,利用图像中各像素点所包含的边缘信息,结合人体形态学先验知识,构建了隐马尔科夫模型来匹配人体上对应骨架关键点的边缘关键点,少量的边缘关键点即可生成人体大致轮廓。利用Hermite插值方法连接边缘关键点获取人体轮廓线。通过相关实验结果表明,提出的方法在较为简单的场景中可以提取出静态图像中人体轮廓,获得的轮廓也符合人体形状先验。与已有的方法相比,在速度上有了很大的提高,并在一些较为复杂的场景中取得了更好的效果。

关键词: 轮廓提取, 隐马尔科夫模型, 人体形态学, Hermite插值

Abstract: To extract human contour in still images, we propose a human contour extraction method based on skeleton matching. Skeleton key points are points representing human skeleton in images. Optimal human contour key points corresponding to skeleton key pointscanbe extracted by constructing hidden Markov modelthrough skeleton key points and image pixels' edge information combined with human body morphology as prior knowledge. Few human contour key points can generate reasonable human contour. TheHermiteinterpolation is usedto connect these key points to obtain human contour. Experimentresults show thatour method can extract reasonable human contour in simple scene, andhas higher speed and achieves better results in complicated scenecompared to previous methods.

Key words: contour extraction, hidden Markov model, human body morphology, Hermiteinterpolation

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