A Novel Template-Based Image Super-resolution Enhancement Method

A new type of template and super-resolution technology, which is applied in image enhancement, graphics and image conversion, image data processing, etc., can solve the problem that image super-resolution does not have enough excellent effects, achieve high degree of freedom and adaptability, and improve adaptability , the effect of increasing precision
CN107330854BInactive Publication Date: 2019-09-17WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2019-09-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an image super-resolution technology based on a new template, which includes: obtaining an original image set, performing 0.5 times downsampling on each image in the image set to obtain a low-resolution image; performing contour template interpolation amplification on the low-resolution image 2 times to obtain a high-resolution reference image; perform new template enhancement on the high-resolution reference image and low-resolution image; calculate the motion matrix between the low-resolution image and the high-resolution reference image through SIFT feature point matching, thereby obtaining the high-resolution reference image The corresponding points of the points on the image in the low-resolution image; by calculating the residual between the points on the high-resolution reference image and the corresponding points in the low-resolution image, the residual image is synthesized, and the residual image and the high-resolution reference image are Overlay to get the final image. The new template can not only effectively enhance the high-frequency information of the image, but also effectively retain the low-frequency information of the image, thus having a wide range of applications in the field of image enhancement.
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Description

Technical field

[0001] The invention relates to an image super-resolution technology based on a novel template, in particular to an end-to-end single image super-resolution reconstruction method based on the superposition of a novel template and a point spread function. Background technique

[0002] The adjustment of the image resolution is a frequently required operation in the application. When faced with various types of images, some classic image processing techniques often fail to achieve better results, especially when there are image texture details or edge stability requirements are high, because the change in resolution is often accompanied by loss of high-frequency information and The amount of information is reduced, so the super-resolution results of the image are often poor and cannot achieve satisfactory goals. Therefore, designing a good image super-resolution method and improving the effect of image super-resolution is a subject worthy of study.

[0003] With the ...

Claims

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