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[Program doc] surf tracking DL : 0: Most motion-based tracking algorithms assume that objects undergo rigid motion, which is most likely disobeyed in real world. In this paper, we present a novel motion-based tracking framework which makes no such assumptions. Object is represented by a set of local invariant features, whose motions are observed by a feature correspon- dence process. A generative model is proposed to depict the relationship between local feature motions and object global motion, whose parameters are learned efciently by an on-line EM algorithm. And the object global motion is estimated in term of maximum likelihood of observations.Then an updating mechanism is employed to adapt object representation. Experiments show that our framework is exible and robust in dealing with appearance changes,background clutter, illumination changes and occlusion
Date : 2010-10-20 Size : 414.75kb User : chenjieke
[Program doc] BASIC_SIFT DL : 0: 关于SIFT的基础知识，包括dog,ramsec,pca-sift,surf的原理介绍-The basics on SIFT
Date : 2025-12-14 Size : 7kb User : YangXiaodong