METHOD AND DEVICE FOR RECONSTRUCTING SUPER-RESOLUTION IMAGES

摘要

The invention relates to a method for generating a super-resolution image by means of a processing device, the method including the following steps: oversampling an input image in order to generate an oversampled image; and modifying the pixel value of a first pixel of the oversampled image by means of the following steps: generating a similarity value for each one of a plurality of candidate pixels in the input image and/or in one or more other input images, the candidate pixels being selected based on the position of the first pixel in the oversampled image, the similarity value being generated by evaluating the similarity of a group of pixels adjacent to each one of the candidate pixels to a group of pixels adjacent to the first pixel; selecting a first subset of candidate pixels on the basis of the similarity values, and generating the modified pixel value of the first pixel based on the pixel values and on the similarity values of the first subset of candidate pixels.

主权项

1. A method of generating a super-resolution image by a processing device, the method comprising:
up-scaling an input image to generate an up-scaled image; and modifying the pixel value of a first pixel of the up-scaled image by: generating a similarity value for each of a plurality of candidate pixels in said input image and/or in one or more further input images, the candidate pixels being chosen based on the position of said first pixel in said up-scaled image, the similarity value being generated by evaluating the similarity of a group of surrounding pixels of each of said candidate pixels with a group of surrounding pixels of said first pixel; selecting a first subset of said candidate pixels based on said similarity values; and generating the modified pixel value of said first pixel based on the pixel values and similarity values of said first subset of candidate pixels.