SAR target recognizing algorithm based on guide reconstitution and norm constraint DBN
A target recognition and guidance technology, applied in the field of target recognition algorithms, can solve problems such as high complexity, many training times, and low recognition rate
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[0083] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:
[0084] Step 1: Two-scale image reconstruction based on guided filter
[0085] For target recognition, the two-scale reconstruction of the original image is to use the guided filter processing of the feature map in order to highlight the detail differences between different types of target images. The specific steps are as follows:
[0086] For the original image I n Do Laplace filtering to get high-frequency image H n :
[0087] h n = I n *L (1)
[0088] In the formula, I n is the nth source image, L is a 3×3 Laplacian filter, H n Take the absolute value and make a local average to reconstruct the feature map S n :
[0089] S n =|H n |*g r,σ (2)
[0090]In the formula, g is a (2r+1)×(2r+1) Gaussian low-pass filter, σ is the standard deviation of the Gaussian low-pass filter, r and σ are both 5. The feature map provides a good representation of the...
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