Human Action Tracking Guided by Key-Frames
Masanobu Yamamoto, Yoshito Ohta, Takashi Yamagiwa, Katsutoshi Yagishita, Hajime Yamanaka and Naoto Ohkubo
The model-based approaches for tracking of human bodies in image sequences
can be categorized into two types; fitting model to body frame by
frame, and accumulating estimated pose displacements in successive frames
after model fitting at the initial frame. The latter has an inherent
drawback as accumulation of tracking errors while the one has a great
advantage as small computational efforts compared with the former.
This paper proposes a new method which can correct the tracking
errors by propagation from fitting model to body at a few key-frames.
The propagation makes it possible to establish tracking of bodies under
occlusion. Capturing the actor's motions in real old movies is presented.