Method for identifying yuv signal source in four primary color image signals

An image signal, four primary color technology, applied in image communication, color signal processing circuit, luminance 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: 2021-04-13
TIANJIN UNIV
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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

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  • Method for identifying yuv signal source in four primary color image signals
  • Method for identifying yuv signal source in four primary color image signals
  • Method for identifying yuv signal source in four 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 present invention relates to wide color gamut, multi-primary colors, image and video display, in order to realize the transmission and storage compatible with the multi-primary color video signal and the YUV format in the case of three primary colors, the source of the YUV signal component is judged by a blind recognition method, thereby The multi-primary-color video signal at the source end is recovered from the transmitted YUV three-image components. The present invention relates to a method for identifying the source of the YUV signal in the multi-primary-color image signal. Step 1 is to propagate the multi-primary-color image signal; step 2 is to identify the YUV signal at the receiving end source; Step 3, ensure compatibility with the current standard color gamut display device; Step 4, YUV signal contains the information of the fourth primary color and two primary colors of R, G, and B; Step 5, ensure the current standard color gamut display It can be displayed correctly; step six, accurately display the corresponding color signal; step seven, the criteria for identifying the source of the YUV signal. The invention is mainly applied to video display occasions.

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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Patent Type & Authority Patents(China)
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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