Multi-Scale Human Pose Tracking in 2D Monocular Images

• 作者: Jinglan Tian Ling Li Wanquan Liu
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: HUMAN Motion TRACKING MULTI-SCALE 2D MONOCULAR VIDEO
• 年，卷（期）: dnhtxyw,（2）
• 页码范围: 78-84
• 页数: 7页
• 分类号: TP39

摘要

In this paper we address the problem of tracking human poses in multiple perspective scales in 2D monocular images/videos. In most state-of-the-art 2D tracking approaches, the issue of scale variation is rarely discussed. However in reality, videos often contain human motion with dynamically changed scales. In this paper we propose a tracking framework that can deal with this problem. A scale checking and adjusting algorithm is proposed to automatically adjust the perspective scales during the tracking process. Two metrics are proposed for detecting and adjusting the scale change. One metric is from the height value of the tracked target, which is suitable for some sequences where the tracked target is upright and with no limbs stretching. The other metric employed in this algorithm is more generic, which is invariant to motion types. It is the ratio between the pixel counts of the target silhouette and the detected bounding boxes of the target body. The proposed algorithm is tested on the publicly available datasets (HumanEva). The experimental results show that our method demonstrated higher accuracy and efficiency compared to state-of-the-art approaches.