Sigma Set: A small second order statistical region descriptor

  title={Sigma Set: A small second order statistical region descriptor},
  author={Xiaopeng Hong and Hong Chang and Shiguang Shan and Xilin Chen and Wen Gao},
  journal={2009 IEEE Conference on Computer Vision and Pattern Recognition},
Given an image region of pixels, second order statistics can be used to construct a descriptor for object representation. One example is the covariance matrix descriptor, which shows high discriminative power and good robustness in many computer vision applications. However, operations for the covariance matrix on Riemannian manifolds are usually computationally demanding. This paper proposes a novel second order statistics based region descriptor, named “Sigma Set”, in the form of a small set… CONTINUE READING
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