Patent ID: 11928792
Assignee: XI'AN JIAOTONG UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The method of claim 1, wherein a process of generating the triples of image patches in the step 1 comprises:
substep 1: randomly sampling N frames of images from a plurality of segments of real-scene videos as a set H of ground truth images of the training set; for each frame of image Hi in the set of ground truth images, sampling, by taking the frame of image Hi as a center, M frames of images adjacent to the frame of image Hi and the frame of image Hi to form a set T of images, T={Hi−(M−1)/2 . . . , Hi . . . , Hi+(M−1)/2}, where a subscript denotes a frame number of an image; and generating the set T of images into a set Hblur of high-resolution blurred images based on a formula, H
    blur
   
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  ,, where M denotes a number of consecutive frames for generating non-uniform motion-blurred images, Hi denotes an i-th frame of image captured by the high-speed motion camera, and g denotes a camera response function configured to represent a mapping relationship between a brightness received by a photosensitive element and a pixel value of an image that is captured, an approximate function of g being g(x)=x1/γ; and
substep 2: for N pairs of high-resolution sharp/blurred images {H, Hblur} generated in the substep 1, downsampling each of the N pairs of high-resolution sharp/blurred images {H, Hblur} with three zooming scales {0.5, 0.7, 1} to obtain 3*N pairs of high-resolution sharp/blurred images; for the 3*N pairs of high-resolution sharp/blurred images, cropping a set of image patches of a size M*M using a sliding window with a stride of S; for each pair of high-resolution image patches {h, hblur}, performing downsampling using a formula L=D(H) to obtain a pair of low-resolution image patches {l, lblur}, where D denotes a downsampling interpolation algorithm, H denotes a high-resolution image, and L denotes a low-resolution image obtained after the downsampling; and obtaining each of the plurality of pairs of triples of image patches {lblur, l, h} in the step 1, the downsampling being bicubic interpolation downsampling.