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Rapid and efficient hole filling algorithm based on foreground and background gradient transition

A gradient transition and hole technology, applied in computing, image data processing, instruments, etc., to achieve the effect of reducing computing time, easy to understand, and accurate results

Inactive Publication Date: 2015-02-25
HEFEI UNIV OF TECH
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Problems solved by technology

But if you simply fill with interpolation, the effect of filling large holes is relatively poor

Method used

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  • Rapid and efficient hole filling algorithm based on foreground and background gradient transition
  • Rapid and efficient hole filling algorithm based on foreground and background gradient transition
  • Rapid and efficient hole filling algorithm based on foreground and background gradient transition

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Embodiment Construction

[0040] In the 2D to 3D technology, hole filling has a decisive impact on the 3D effect, and it is also the last step of the 3D conversion technology. In order to make the purpose, advantages and technical solutions of the present invention clearer, use the attached Figure 1-7 And in combination with specific examples, the present invention is further described in detail.

[0041] figure 1 It is a schematic flowchart of a method for generating a depth map in the present invention. A fast and efficient hole filling algorithm based on the gradient transition between foreground and foreground. The specific implementation steps include the following steps:

[0042] step S 1: Get the grayscale image Img of the input image;

[0043] step S 2: Obtain the original depth image Dep1 of the grayscale image Img using a depth estimation algorithm based on relative height and depth clues;

[0044] step S 3: Perform preprocessing on the depth map, such as filtering, foreground expans...

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Abstract

The invention discloses a rapid and efficient hole filling algorithm based on foreground and background gradient transition. Firstly, grey processing is conducted on an input image, and an original depth image is obtained through depth extraction; secondly, operations such as filtering, foreground fattening and foreground and background gradient gradual transition are conducted on the original depth image so that a processed depth image can be obtained; 3D drawing is conducted by using the original depth image and the processed depth image, and the two obtained images are synthesized to obtain a target image; hole regions of the obtained target image are filled according to the proposed hole filling algorithm, so that a final left-right view is obtained. Compared with other methods, the algorithm has the advantages that the algorithm is simpler and easy to implement, the calculation process is simplified greatly, operation time is shortened greatly, and the algorithm is very applicable to real-time 3D display technologies.

Description

technical field [0001] The present invention relates to the field of three-dimensional (3D) display technology, in particular to a fast and efficient hole-filling algorithm based on the gradient transition between foreground and foreground. noise ratio. Background technique [0002] At present, most of the 3D display technologies are realized by using the principle of parallax, providing two different images for the left eye and the right eye respectively, to simulate the characteristics of ordinary observers observing external things, so that the observers can watch the picture at an appropriate angle. Produce a three-dimensional sense of space. To convert from a 2D image to a 3D image, the commonly used method is to give an original image, and then use the 3D rendering method to obtain its left and right views, and then provide them to the left and right eyes respectively. At present, the method of Depth Image Based Rendering (DIBR) is mainly used to synthesize the lef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G06T7/00
Inventor 杨依忠徐逸琛马茏解光军卫伟丁继生张强鲁迎春
Owner HEFEI UNIV OF TECH
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