A complementary local feature descriptor for face identification


In many descriptors, spatial intensity transforms are often packed into a histogram or encoded into binary strings to be insensitive to local misalignment and compact. Discriminative information, however, might be lost during the process as a trade-off. To capture the lost pixel-wise local information, we propose a new feature descriptor, Circular Center Symmetric-Pairs of Pixels (CCS-POP). It concatenates the symmetric pixel differences centered at a pixel position along various orientations with various radii; it is a generalized form of Local Binary Patterns, its variants and Pairs-of-Pixels (POP). Combining CCS-POP with existing descriptors achieves better face identification performance on FRGC Ver. 1.0 and FERET datasets compared to state-of-the-art approaches.

DOI: 10.1109/WACV.2012.6163014
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@article{Choi2012ACL, title={A complementary local feature descriptor for face identification}, author={Jonghyun Choi and William Robson Schwartz and Huimin Guo and Larry S. Davis}, journal={2012 IEEE Workshop on the Applications of Computer Vision (WACV)}, year={2012}, pages={121-128} }