Illumination Invariant Object Tracking with Adaptive Sparse Representation

被引:9
|
作者
Vo Quang Nhat [1 ]
Lee, Gueesang [1 ]
机构
[1] Chonnam Natl Univ, Dept Elect & Comp Engn, Kwangju, South Korea
基金
新加坡国家研究基金会;
关键词
Illumination invariant; l(1) tracker; objects tracking; photometric normalization; FACE RECOGNITION;
D O I
10.1007/s12555-013-0077-x
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Since the introduction of the sparse representation-based tracking method named l(1), tracker, there have been further studies into this tracking framework with promised results in challenging video sequences. However, in the situation of large illumination changes and shadow casting, the tracked object cannot be modeled efficiently by sparse representation templates. To overcome this problem, we propose a new illumination invariant tracker based on photometric normalization techniques and the sparse representation framework. With photometric normalization methods, we designed a new illumination invariant template presentation for tracking that eliminates the illumination influences, such as brightness variation and shadow casting. For a higher tracking accuracy, we introduced a strategy that adaptively selects the optimum template presentation at the update step of the tracking process. The experiments show that our approach outperforms the previous l(1) and some state-of-the-art algorithms in tracking sequences with severe illumination effects.
引用
收藏
页码:195 / 201
页数:7
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