Wavelet MTF compensation method based on optimal core shape
A compensation method, the best technology, applied in image data processing, instrumentation, calculation, etc., can solve the problem of signal and noise amplification at the same time, and achieve the effect of high improvement multiple, improved on-orbit dynamic MTF, and lossless information
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[0025] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings:
[0026] Such as figure 1 As shown, a wavelet MTF compensation method based on the optimal core shape can be applied to a satellite remote sensing image ground processing system. According to the prior knowledge of the noise of the imaging system, the threshold is input, and the input digital image signal and noise are partially separated in the wavelet domain. Input parameters a and b, perform initial kernel design, perform wavelet domain MTFC processing on the signal part, and after adding the noise part, perform wavelet domain regularization processing, and output the process image. By continuously adjusting the a and b parameters, different cores and corresponding different process images are generated, and the corresponding J ND and MTF are measured through the process images. Record the a and b parameters that meet the requiremen...
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