Kernel image differential filter designing method based on learning and characteristic discrimination
A filter design, nuclear image technology, applied in the fields of instruments, computing, computer parts, etc., can solve problems such as underutilization of high-order differential information, non-linear problems of face recognition, etc.
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[0026] The present invention will be further described below in conjunction with the accompanying drawings.
[0027] see figure 1 , which is a flowchart of a method for designing a nuclear image differential filter based on learning and feature identification in the present invention.
[0028] Such as figure 1 As shown, a nuclear image differential filter design method based on learning and feature discrimination is characterized in that it includes:
[0029] Step 101, the original image block vector corresponding to any point P in the linear discriminant filter is stretched in rows to form an image block vector containing only the adjacent pixel information of P;
[0030] Step 102, perform dimensionality expansion on the basis of the image block vector, and concatenate the first-order and second-order differential information at the pixel in the original image block vector.
[0031] see figure 2 , is a schematic diagram of the expansion of the first-order and second-order ...
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