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Method for identifying YUV signal sources in multi-primary color image signals

An image signal, multi-primary color technology, applied in image communication, color signal processing circuit, brightness and chrominance signal processing circuit, etc., can solve the problem that the receiving end cannot accurately display the color signal, and achieve the effect of improving the display quality

Active Publication Date: 2019-04-12
TIANJIN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

But this requires that the receiving end must be able to correctly identify whether the received YUV signal comes from an RGB signal or an EGB signal, otherwise the receiving end will not be able to accurately display the corresponding color signal

Method used

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  • Method for identifying YUV signal sources in multi-primary color image signals
  • Method for identifying YUV signal sources in multi-primary color image signals
  • Method for identifying YUV signal sources in multi-primary color image signals

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Embodiment Construction

[0073] The technical solution of the present invention is a method for identifying the source of the YUV signal in a multi-primary color image signal, comprising the steps of:

[0074] Step 1, using common RGB three-primary-color channels or storage media to transmit multi-primary-color image signals without additional transmission of logo information;

[0075] Step 2, using the coding difference between the EGB situation and the RGB situation to identify the source of the YUV signal at the receiving end;

[0076] Step 3, for the case expressed by the three primary colors of RGB, the luminance signal Y, the color difference signal U and V expressions remain unchanged, so as to ensure that the current standard color gamut display can be displayed correctly, that is, to ensure compatibility with the current standard color gamut display equipment;

[0077] Step 4, for the colors that can be expressed beyond the general RGB three primary colors, the YUV signal includes the informa...

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Abstract

The invention relates to wide-color gamut and multi-primary color image and video display. In order to carry out transmission and storage compatible with a YUV format under three-primary color condition on multi-primary color video signals, sources of YUV signal components are judged through utilization of a blind recognition method, and the multi-primary color video signals of an information source end are restored from propagated YUV image components. A method for identifying YUV signal sources in multi-primary color image signals provided by the invention comprises the steps that S1, the multi-primary color image signals are propagated; S, sources of YUV signals are recognized at a receiving end; S3, compatibility with a current standard color gamut display equipment is ensured; S4, theYUV signals comprise information of a fourth primary color, and two primary colors in R, G and B; S5, the fact a current standard color gamut display can display correctly is ensured; S6, corresponding color signals are accurately displayed; and S7, criteria for recognizing the YUV signal sources are defined. The method is mainly applied to a video display occasion.

Description

technical field [0001] The present invention relates to wide color gamut, multi-primary colors, image and video display, image and video encoding, image and video expression, image and video transmission, blind recognition technology, specifically, a method for identifying the source of YUV signals in multi-primary color image signals. Background technique [0002] Image color is an important indicator to measure image quality. If the imaging, transmission or display technology cannot fully cover the color gamut of the image, it will lead to chromaticity distortion and a decrease in color saturation of the image, resulting in poor quality of the reproduced image, reduced sense of reality, and greatly reduced the viewing experience of the audience. [0003] With the changes in people's life, work, entertainment and consumption patterns, wide color gamut images are widely used, and people's expectations for them are getting higher and higher. Not only do wide color gamut imag...

Claims

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Application Information

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IPC IPC(8): H04N9/64H04N9/77H04N19/186
CPCH04N9/64H04N9/643H04N9/77H04N19/186
Inventor 雷志春宇欣
Owner TIANJIN UNIV
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