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A method and device for processing sub-block images

A sub-block and image technology, applied in the field of sub-block image processing, can solve the problem of serious data consumption of sub-block image information, and achieve the effect of saving data

Active Publication Date: 2022-04-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These information are directly stored in the code stream without entropy coding. As the number of sub-blocks increases, the data consumption of sub-block image information will be more serious.

Method used

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  • A method and device for processing sub-block images
  • A method and device for processing sub-block images
  • A method and device for processing sub-block images

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] An embodiment of the present invention provides a method for processing a sub-block image.

[0070] The method for processing sub-block images provided in this embodiment includes:

[0071] For at least one sub-block image in the multi-view sub-block mosaic image, the information of the sub-block image is obtained from the code stream, including: the width information w is 128, the height information h is 56, and the upper left corner pixel of the sub-block image is at The position information (xp, yp) = (10, 25) in the multi-viewpoint sub-block mosaic image, the position information (xs, ys) = (25, 56) of the upper left pixel of the sub-block image in the single-viewpoint image and the The camera parameters of the single-viewpoint image, wherein, w and h are 16-bit binary numbers respectively, and w (j) Represented as the jth binary digit of w from low to high, j starts from 1, xp, yp are 14-bit binary numbers, xs, ys are 15-bit binary numbers;

[0072] Through the f...

Embodiment 2

[0083] An embodiment of the present invention provides a method for processing a sub-block image.

[0084] The method for processing sub-block images provided in this embodiment includes:

[0085] For at least one sub-block image in the multi-view sub-block mosaic image, the information of the sub-block image is obtained from the code stream, including: the width information w is 128, the height information h is 56, and the upper left corner pixel of the sub-block image is at The position information (xp, yp) = (10, 25) in the multi-viewpoint sub-block mosaic image, the position information (xs, ys) = (25, 56) of the upper left corner pixel of the sub-block image in the single-viewpoint image and the The camera parameters of the single-viewpoint image, wherein, w and h are 16-bit binary numbers respectively, and w (j) Represented as the jth binary digit of w from low to high, j starts from 1, xp, yp are 16-bit binary numbers, xs, ys are 14-bit binary numbers;

[0086] Throug...

Embodiment 3

[0097] An embodiment of the present invention provides a method for processing a sub-block image.

[0098] The method for processing sub-block images provided in this embodiment includes:

[0099]For at least one sub-block image in the multi-view sub-block mosaic image, the information of the sub-block image is obtained from the code stream, including: the width information w is 128, the height information h is 56, and the upper left corner pixel of the sub-block image is at The position information (xp, yp) = (10, 25) in the multi-viewpoint sub-block mosaic image, the position information (xs, ys) = (25, 56) of the upper left pixel of the sub-block image in the single-viewpoint image and the The camera parameters of the single-viewpoint image, wherein, w and h are 16-bit binary numbers respectively, and w (j) Represented as the jth binary digit of w from low to high, j starts from 1, xp, yp are 16-bit binary numbers, xs, ys are 14-bit binary numbers;

[0100] Through the fo...

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Abstract

The invention provides a method and device for processing sub-block images. The invention is used in the field of multimedia to extract sub-block images from code streams of multi-view point sub-block mosaic images, and use the sub-block images to render as target images. The method provided by the invention can effectively reduce the amount of data consumed by the sub-block image information in the code stream of the viewpoint sub-block mosaic image, and improve the coding performance. The present invention also proposes a corresponding device while proposing a method for processing sub-block images.

Description

technical field [0001] The patent of the present invention belongs to the field of sub-block image processing, and specifically relates to a method and a device for extracting a sub-block image from a multi-view point sub-block mosaic image, and using the sub-block image to render a target image. Background technique [0002] As a subjective evaluation, "immersion" refers to the viewer's perception of the virtual scene established and displayed by the multimedia system. As the capabilities of acquisition devices and display devices increase year by year, immersive media, as a visual multimedia that can bring viewers a strong sense of immersion, has become a market and research hotspot in its encoding, transmission and rendering. [0003] As immersive media supports viewers with increased viewing freedom, the visual immersion it brings to viewers has been significantly enhanced. Viewing degrees of freedom refer to support for viewers to translate along three axes and rotate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/106H04N13/122
CPCH04N13/106H04N13/122
Inventor 虞露王彬孙宇乐
Owner ZHEJIANG UNIV