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Super-resolution image texture optimization method and device

A super-resolution image and texture optimization technology, applied in the field of image super-resolution, can solve problems such as unsatisfactory texture optimization effect

Inactive Publication Date: 2019-09-20
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Such methods only use limited texture instances or internal information as prior information to perform image texture reconstruction, and do not properly classify texture blocks, so the optimization effect on texture is not ideal

Method used

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  • Super-resolution image texture optimization method and device
  • Super-resolution image texture optimization method and device
  • Super-resolution image texture optimization method and device

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Embodiment Construction

[0100] The concrete implementation of the present invention is described in detail below, it is necessary to point out here that the following implementation is only used for further description of the present invention, and can not be interpreted as limiting the protection scope of the present invention. Some non-essential improvements and adjustments still belong to the protection scope of the present invention.

[0101] The invention provides a method and device for super-resolution image texture optimization based on time domain and fractional frequency domain feature screening and mapping kernel learning.

[0102] An embodiment of the present invention provides a method for optimizing texture of a super-resolution image based on mapping kernel learning. see figure 1 , figure 1 A flowchart of a method for super-resolution image texture optimization according to an embodiment of the present invention, including the following steps:

[0103] Step 101, inputting a training...

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Abstract

The invention discloses a super-resolution image texture optimization method and device. The method is realized on the basis of time-frequency feature extraction and mapping kernel learning, and comprises the following steps: 1) training a local texture block sample screener on the basis of local texture blocks with time domain and fractional frequency domain features, and screening samples with obvious texture features from external samples to serve as training samples of a mapping kernel training module; (2) learning a texture block optimization mapping kernel based on a local texture block of external sample learning, and (3) carrying out texture optimization on a to-be-optimized picture. According to the method and the device provided by the invention, the texture of the super-resolution image can be clearer and more natural.

Description

technical field [0001] The invention relates to the technical field of image super-resolution, in particular to a method and device for super-resolution image texture optimization based on time domain and fractional frequency domain feature screening and mapping kernel learning. Background technique [0002] As an important information carrier, images play an important role in both daily life applications and scientific research applications. In an image, higher resolution means that the image will contain richer information and more detailed details. However, due to the interference and compression of the image during the imaging process or network transmission, the pictures we get are often blurred A low-resolution image of a small size. Image super-resolution technology hopes to reconstruct a clear large-scale high-resolution image from the degraded low-resolution image, realize the reverse process of the image degradation process, and restore richer image information. ...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06T5/00G06T7/40G06K9/62
CPCG06T3/4053G06T7/40G06T2207/20081G06F18/2411G06T5/77
Inventor 段沛奇康学净张雪松吕远郑林誉
Owner BEIJING UNIV OF POSTS & TELECOMM
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