Ming-zhong YANG, Ping-xian YANG, Guo-jun LIN. Face recognition research based on variant samples and collaborative representation[J]. Chinese journal of liquid crystals and displays, 2017, 32(12): 987-992.
DOI:
Ming-zhong YANG, Ping-xian YANG, Guo-jun LIN. Face recognition research based on variant samples and collaborative representation[J]. Chinese journal of liquid crystals and displays, 2017, 32(12): 987-992. DOI: 10.3788/YJYXS20173212.0987.
Face recognition research based on variant samples and collaborative representation
the face image are affected by the variations of expression
lighting
occlusion
pose and especially the number of training samples. However
in practical application
we only have insufficient training samples. The collaborative representation algorithm of combining the original training samples with the axial-symmetry samples is proposed because the original training samples generate the corresponding virtual training samples to increase the number of training samples. Firstly
the original training samples generate the corresponding mirror samples and axial-symmetry samples. Secondly
the reconstruction errors are obtained by using collaborative representation based classification. Finally
the variant reconstruction errors are combined with different weighted number to compare face recognition rates. The experimental results show that the face recognition rates are increased by combining the original training samples with the mirror samples and the axial-symmetry samples. The face recognition rates of combining the original training samples with the axialsy-mmetry samples are 2%~9% and 1%~5% better than the original training samples and the original training samples with the mirror samples respectively. It shows that the paper's method is effective in face recognition.
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references
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