Two-dimensional sine-assisted empirical mode image decomposition method
A technology of empirical mode decomposition and empirical mode, which is applied in the field of image processing, can solve the problems of the timeliness problem of two-dimensional ensemble empirical mode decomposition that is difficult to meet actual needs, the application and analysis of decomposition results is difficult, and the distribution of extreme values is uneven. , to achieve the effect of eliminating mode aliasing problem, fast multi-resolution decomposition, and uniform distribution of extreme values
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[0041] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0042] Such as figure 1 As shown, a two-dimensional sine-assisted empirical mode image decomposition method described in the present invention, by analyzing the scales existing in the image to be processed, designs several two-dimensional sinusoidal distributions similar to the amplitude-frequency characteristics of each scale component. In the process, by adding the designed sinusoidal distribution, the extreme value distribution of the corresponding scale is uniform, so that the added sinusoidal scale and the corresponding scale in the image can be completely decomposed together. Since the added sinusoidal distributions operate in pairs, reciprocally, they can be canceled out by averaging. Finally, the image can be decomposed into several image components whose scales are from small to large (that is, the frequency is from high to low). Sp...
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