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http://dx.doi.org/10.7840/KICS.2012.37A.5.375

Object Tracking Using Particle Filters in Moving Camera  

Ko, Byoung-Chul (계명대학교 컴퓨터공학과 CVPR 연구실)
Nam, Jae-Yeal (계명대학교 컴퓨터공학과 CVPR 연구실)
Kwak, Joon-Young (계명대학교 컴퓨터공학과 CVPR 연구실)
Abstract
This paper proposes a new real-time object tracking algorithm using particle filters with color and texture features in moving CCD camera images. If the user selects an initial object, this region is declared as a target particle and an initial state is modeled. Then, N particles are generated based on random distribution and CS-LBP (Centre Symmetric Local Binary Patterns) for texture model and weighted color distribution is modeled from each particle. For observation likelihoods estimation, Bhattacharyya distance between particles and their feature models are calculated and this observation likelihoods are used for weights of individual particles. After weights estimation, a new particle which has the maximum weight is selected and new particles are re-sampled using the maximum particle. For performance comparison, we tested a few combinations of features and particle filters. The proposed algorithm showed best object tracking performance when we used color and texture model simultaneously for likelihood estimation.
Keywords
객체 추적;색상 분모 모델;로컬 CS-LBP;관측 우도;바타차리야 거리;
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