Super-resolution sparse reconstruction method based on discriminative canonical correlation
A super-resolution and sparse reconstruction technology, applied in image data processing, instrumentation, computing, etc., can solve problems such as lack of discrimination and insufficient use of class label information
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[0041] In order to clarify the purpose, technical solutions and advantages of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.
[0042] refer to figure 1 , the specific implementation process of the present invention comprises the following steps:
[0043] (1) First, training samples for high-resolution images and corresponding low-resolution image samples Use principal component analysis (PCA) to extract the global features of high and low resolution face images, and obtain the projection vector P in the PCA subspace H ,P L , and its corresponding principal component X H 、X L . For the extracted PCA score vector X H 、X L , which is mapped to the relevant subspace of DCCA, and the corresponding projection vector C can be obtained by maximizing the criterion formula of DCCA H 、C L and score vector V H and V L .
[0044] Next, input a low-resolution test sampl...
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