Face feature extraction method based on fusion of improved LTP (Local Ternary Pattern) and two-dimensional bidirectional PCA (Principal Component Analysis)
An extraction method, a technology of facial features, used in instruments, character and pattern recognition, computer parts, etc.
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[0041] The technical solutions in the embodiments of the present invention will be described clearly and in detail below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention.
[0042] The technical solutions of the present invention to solve the above technical problems are:
[0043] Such as figure 1 As shown, the present invention provides a face feature extraction method based on the fusion of improved LTP and two-dimensional bidirectional PCA, which is characterized in that it includes the following steps:
[0044] S1, divide the face image into non-overlapping sub-areas, J 0 ,J 1 ,J 2 ,...,J t-1 , Where t is the number of non-overlapping regions.
[0045] S2: Establish a difference function equation of the sum of the weights of the center pixel and the neighboring pixels to obtain the statistical characteristics of the center pixel and the neighboring pixels;
[0046] Th...
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