Unlock instant, AI-driven research and patent intelligence for your innovation.

Video signal processing method and device

A video signal and processing method technology, applied in the multimedia field, can solve the problems of loss of details, picture distortion, inaccurate color performance, etc., to achieve the effect of improving efficiency, reducing complexity, and avoiding picture distortion

Active Publication Date: 2019-06-14
HUAWEI TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally, a display can support limited video formats. For example, an SDR TV can only support playing SDR video formats, but not HDR video formats. For example, a TV that supports HDR video formats with PQ curves, HDR video formats that cannot support HLG curves
If the format of the video received by the monitor is inconsistent with the video format supported by the monitor, when the monitor plays the video, it will cause severe distortion of the picture, inaccurate color performance and loss of details, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video signal processing method and device
  • Video signal processing method and device
  • Video signal processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0176] It should be understood that in this application, "at least one (item)" means one or more, and "multiple" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time , where A and B can be singular or plural. The character " / " generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c ", where a, b, c can be single or multiple.

[0177] First, in order to facilitate understanding of the embodiments of the present application, some concepts or terms involved in the embodiments of the present...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the present application provides a video signal processing method and device, the method comprising: performing brightness mapping and color gamut conversion after performing color space conversion and nonlinear space to linear space conversion on the video signal to be processed, and converting the color Convert the signal after domain conversion from linear space to nonlinear space and color space, and then perform saturation mapping on the converted signal to obtain a video signal that matches the format supported by the display device, so that the video signal to be processed can be correct It can be displayed on the display device to avoid problems such as picture distortion, inaccurate color performance and loss of details.

Description

technical field [0001] The present application relates to the field of multimedia technologies, in particular to a video signal processing method and device. Background technique [0002] When playing a video, the video source device sends the video to be played to a playback device, such as a set-top box, etc., and the playback device then sends the received video to a display, such as a TV, through a high definition multimedia interface (high definition multimedia interface, HDMI) interface computer, projector, etc., and then the received video is played by the monitor. [0003] At present, there are mainly two types of video formats supported by a display with an HDMI interface. One is a standard dynamic range (standard dynamic range, SDR) video format, and the SDR video format includes a variety of SDR video formats. For example, according to The color gamut is different. The SDR video format includes BT709 video format and BT2020 video format, etc.; the other is the hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/4402H04N9/77H04N9/64H04N5/57
CPCH04N9/77H04N21/4402H04N23/86H04N23/85H04N23/83H04N5/20H04N9/64G06T2207/10024G06T2207/20208G09G2320/0276G09G2340/06G09G2360/16G09G2370/04H04N9/873
Inventor 袁乐王正吴仁坚黄芳
Owner HUAWEI TECH CO LTD