Video image fusion performance evaluation method based on three-dimensional Log-Gabor conversion
A video image and evaluation method technology, applied in the field of image processing, can solve the problems of noise sensitivity, difficulty in the implementation process, performance evaluation method cannot give accurate performance evaluation results, etc.
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[0038] Refer to the following figure 1 The present invention is described in further detail:
[0039] The first step, in the 3D frequency domain spherical coordinate system Construct a 3-dimensional Log-Gabor filter in the middle:
[0040]
[0041] Among them, k=1,2,..,N represents the Log-Gabor filter of the kth channel, N is the total number of channels, ρ k Indicates the central radial frequency of the channel filter, θ k and are the azimuth and elevation angles of the corresponding channel filter, θ k and Together determine the center direction of the filter, σ k,ρ and σ k,ζ Determine the radial bandwidth and angular bandwidth of the filter respectively, a point in the coordinate system with the filter center frequency point angle between. In the present invention, the number of filter scales is 3, and the corresponding ρ k Take 0.7π, 0.4π, 0.25π, σ respectively k,ρ Pick To ensure that the radial bandwidth of each filter is 1 octave, there are 60 fi...
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