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Super-resolution method based on reconstruction

A super-resolution, pixel technology, applied in image data processing, instruments, computing and other directions, can solve problems such as poor results

Inactive Publication Date: 2011-03-30
FUDAN UNIV
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Usually, PR doesn't work well

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Embodiment Construction

[0052] The idea of ​​the super-resolution method of the present invention is: from the assumption based on the boundary linear model, the low-resolution image can be regarded as a combination of objects with polygonal boundaries, and the boundary line segment expression of the original object is extracted from the low-resolution image, and then In the high-resolution image, the pixels on the boundary are accurately colored, and the remaining non-boundary pixels are colored according to the traditional method.

[0053] The super-resolution method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0054] 1.Exact super-resolution method

[0055] The flow process of the super-resolution method Exact of the present invention is as follows figure 1 As shown, the specific steps are as follows:

[0056] The first step, for a given low-resolution image, first find out those pixels that have adjacent neighbors of the same color,...

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Abstract

The invention belongs to the technical field of computer multimedia technology and digital image processing, which relates to a super-resolution method based on reconstruction. On the basis of assumption of a boundary linear model, a low-resolution image is regarded as a combination of objects with polygon boundaries; a boundary segment expression of an original object is extracted from the low-resolution image; accordingly, in a high-resolution image, pixels on the boundaries are accurately colored; and other pixels not on the boundaries are colored according to a traditional method. Compared with traditional popular quick treating methods PR and LI, the super-resolution method of the invention can be used for obtaining a more accurate boundary so that the imaging effect is better and the image is clearer to the largest degree.

Description

technical field [0001] The invention belongs to the technical fields of computer multimedia technology and digital image processing, and relates to a reconstruction-based super-resolution method. Background technique [0002] Super-resolution technology refers to a technology for generating high-resolution images from input low-resolution images. Super-resolution technology is applied in a wide range of scenarios. For example, we need to display the same image on different resolution monitors, TVs, and mobile phones; for another example, we hope to improve the quality of a photo taken by a low-resolution camera ; Or we hope to improve the resolution capability of the image recognition system by increasing the resolution; we can also upgrade the DVD format image to HDTV format clearer image. [0003] The concept of super-resolution technology was proposed by Tsai and Huang. The most basic super-resolution method, including Pixel replication (PR). This method only enlarges ...

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Application Information

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IPC IPC(8): G06T5/00
Inventor 鲁道夫
Owner FUDAN UNIV
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