Coupled Bias–Variance Tradeoff for Cross-Pose Face Recognition | IEEE Journals & Magazine | IEEE Xplore

Coupled Bias–Variance Tradeoff for Cross-Pose Face Recognition


Abstract:

Subspace-based face representation can be looked as a regression problem. From this viewpoint, we first revisited the problem of recognizing faces across pose differences...Show More

Abstract:

Subspace-based face representation can be looked as a regression problem. From this viewpoint, we first revisited the problem of recognizing faces across pose differences, which is a bottleneck in face recognition. Then, we propose a new approach for cross-pose face recognition using a regressor with a coupled bias-variance tradeoff. We found that striking a coupled balance between bias and variance in regression for different poses could improve the regressor-based cross-pose face representation, i.e., the regressor can be more stable against a pose difference. With the basic idea, ridge regression and lasso regression are explored. Experimental results on CMU PIE, the FERET, and the Multi-PIE face databases show that the proposed bias-variance tradeoff can achieve considerable reinforcement in recognition performance.
Published in: IEEE Transactions on Image Processing ( Volume: 21, Issue: 1, January 2012)
Page(s): 305 - 315
Date of Publication: 30 June 2011

ISSN Information:

PubMed ID: 21724510

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