Recognition of face expressions using Local Principal Texture Pattern

  title={Recognition of face expressions using Local Principal Texture Pattern},
  author={Adin Ramirez Rivera and Jorge A. Rojas Castillo and Oksam Chae},
  journal={2012 19th IEEE International Conference on Image Processing},
Deriving an effective facial feature from original face images is a vital step for a successful automatic facial expression recognition. In this paper, we proposed a new feature descriptor, Local Principal Texture Pattern (LPTP), for expression recognition. We compute the LPTP feature, at each pixel, by extracting the principal directions of the local neighborhood, and we code the intensity differences on these directions. The mixture of direction and contrast information makes our descriptor… CONTINUE READING

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