Extra Facial Landmark Localization via Global Shape Reconstruction

Computational Intelligence and Neuroscience
Shuqiu TanZhiqi Huang

Abstract

Localizing facial landmarks is a popular topic in the field of face analysis. However, problems arose in practical applications such as handling pose variations and partial occlusions while maintaining moderate training model size and computational efficiency still challenges current solutions. In this paper, we present a global shape reconstruction method for locating extra facial landmarks comparing to facial landmarks used in the training phase. In the proposed method, the reduced configuration of facial landmarks is first decomposed into corresponding sparse coefficients. Then explicit face shape correlations are exploited to regress between sparse coefficients of different facial landmark configurations. Finally extra facial landmarks are reconstructed by combining the pretrained shape dictionary and the approximation of sparse coefficients. By applying the proposed method, both the training time and the model size of a class of methods which stack local evidences as an appearance descriptor can be scaled down with only a minor compromise in detection accuracy. Extensive experiments prove that the proposed method is feasible and is able to reconstruct extra facial landmarks even under very asymmetrical face poses.

References

Jul 18, 2012·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Jun YuDacheng Tao
Dec 28, 2012·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Adin Ramirez RiveraOksam Chae
Mar 23, 2013·IEEE Transactions on Pattern Analysis and Machine Intelligence·Shengcai LiaoStan Z Li
Mar 27, 2013·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Yongqiang LiQiang Ji
Oct 19, 2013·IEEE Transactions on Pattern Analysis and Machine Intelligence·Peter N BelhumeurNeeraj Kumar
Nov 26, 2015·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Qingshan LiuDacheng Tao

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