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Method and apparatus for color space 4:4:4 transmission

A color space and device technology, applied in the multimedia field, can solve problems such as low transmission efficiency

Pending Publication Date: 2019-10-25
无锡思朗电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low transmission efficiency (code rate) by directly adopting the data format of color space 4:4:4 for transmission, the present invention proposes a method and device for color space 4:4:4 transmission

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  • Method and apparatus for color space 4:4:4 transmission
  • Method and apparatus for color space 4:4:4 transmission

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Embodiment 1

[0022] In the prior art, although the sampling method of the color space 4:4:4 can guarantee the highest image quality, it takes up a huge bandwidth, and the data format of the color space 4:4:4 is directly used for transmission, and its transmission efficiency is low. Can not meet the needs of the public. To solve the above technical problem, an embodiment of the present invention provides a method for color space 4:4:4 transmission. Such as figure 1 As shown, the technical solution provided by Embodiment 1 of the present invention includes:

[0023] S101: Input source data in a color space 4:4:4 sampling format;

[0024] S102: Convert the source data into second intermediate data in any sampling format in the multi-channel color space 4:2:2 sampling format and the multi-channel color space 4:2:0 sampling format;

[0025] S103: Perform data transmission on the second intermediate data;

[0026] S104: Receive second intermediate data;

[0027] S105: Restore the second int...

Embodiment 2

[0044] Although the sampling method of the color space 4:4:4 can guarantee the highest image quality, it takes up a huge bandwidth, and the data format of the color space 4:4:4 is directly used for transmission. The transmission efficiency is low and cannot meet the needs of the public. It is urgent to develop a high-fidelity high-bit-rate transmission device for color space 4:4:4.

[0045] Such as Figure 1~2 As shown, Embodiment 2 of the present invention provides a transmission device for a color space of 4:4:4, including: an image input unit, a first image conversion unit, an image transmission unit, and a second image conversion unit sequentially connected by communication , an image output unit; the image input unit includes an input interface that supports the color space 4:4:4 sampling format; the first image conversion unit is used to convert the source data of the color space 4:4:4 sampling format into a multi-channel color space 4 :2:2 sampling format or multi-chan...

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Abstract

The invention provides a method for 4:4:4 transmission in a color space. The method comprises the following steps: inputting source data in a 4:4:4 sampling format in the color space; converting the source data into second intermediate data in any one sampling format of a plurality of paths of color space 4:2:2 or 4:2:0 sampling formats; performing data transmission on the second intermediate data; receiving second intermediate data; restoring the second intermediate data into source data in a color space 4:4:4 sampling format; outputting source data. The invention further provides equipment based on the method. By converting image data in the color space 4:4:4 sampling format with excellent bandwidth and color gamut range into image data in the multipath color space 4:2:2 or 4:2:0 sampling format for transmission, restoring the image data in the color space 4:4:4 sampling format before output, high-speed fidelity transmission of the image data in the color space 4:4:4 sampling formatis achieved, and the problems that the transmission efficiency is low and public needs cannot be met due to the fact that the data in the color space 4:4:4 sampling format is directly adopted for transmission are solved.

Description

technical field [0001] The present invention relates to the field of multimedia technologies, in particular to a method and device for color space 4:4:4 transmission. Background technique [0002] Since the color space 4:4:4 is the highest sampling recording and output method with full bandwidth and full chroma, its bandwidth and color gamut are qualitatively superior to those of the color space 4:2:2 or 4:2:0. In most applications, especially in conferences, large-screen displays and other occasions that require detailed restoration of single-pixel images, an acquisition and processing system with a color space of 4:4:4 must be used. However, although the sampling method of the color space 4:4:4 can guarantee the highest image quality, it takes up a huge bandwidth, and the data format of the color space 4:4:4 is directly used for transmission, and its transmission efficiency (bit rate) is low. . Contents of the invention [0003] In order to solve the problem of low tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01H04N19/132H04N19/40H04N19/186H04N5/765
CPCH04N7/0102H04N7/0135H04N19/132H04N19/40H04N19/186H04N5/765
Inventor 刘正
Owner 无锡思朗电子科技有限公司