body track 是什么意思

	1.	Body tracking doesnt track the original message 内文追踪不会追踪原始讯息
	2.	We discuss the preprocessing of video and whole body tracking problem firstly 首先讨论了对于视频的预处理以及全身运动的跟踪问题。
	3.	The video - based 3d body tracking method under the non - linear optimization framework was proposed , which combined multiple cues and motion prior efficiently 其算法特点是，多种图像特征和运动知识有机地集成于一个基于非线性优化策略的跟踪框架中。

body track是什么意思