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Signal indicator for fading compensation

A technology of signal and level information, which is applied in the direction of digital video signal modification, program control using stored programs, image communication, etc., and can solve problems such as lack of superiority in technology and tools

Inactive Publication Date: 2006-08-02
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whatever the benefits of existing video compression and decompression reception, however, they do not have the advantages of the following techniques and tools

Method used

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  • Signal indicator for fading compensation
  • Signal indicator for fading compensation
  • Signal indicator for fading compensation

Examples

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Embodiment Construction

[0045] The following examples relate to techniques and tools for gradient estimation and / or compensation. Without gradient compensation / estimation, video sequences with special effects such as gradients, warps, and color blends require relatively more bits to encode, since existing motion-based video compression methods are generally limited to such frames Not very effective. The following example improves frame rate-distortion performance by performing gradient estimation / compensation on such sequences. Various examples relate to techniques and tools for estimating, applying, encoding and / or decoding global brightness changing parameters.

[0046] Gradation compensation in some instances includes global brightness changes to one or more reference frames to compensate for gradients. A global brightness change is a change in brightness in a defined region, which can be a frame, a part of a frame (eg, a single block or block in a frame, or a group of blocks in a frame), or ar...

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Abstract

Techniques and tools for signaling for fading compensation in video processing applications are described. For example, a video encoder performs fading compensation on a reference image, signals that fading compensation is used, and signals fading parameters for the fading compensation. A video decoder receives the signaled information and performs fading compensation on the reference image according to the fading parameters.

Description

(1) Technical field [0001] This application claims the rights set forth in US Provisional Patent Application Serial No. 60 / 377,628. This provisional patent application was filed May 3, 2002 and is incorporated herein by reference. This application is related to U.S. Patent Application Serial No. aa / bbb,ccc, filed concurrently herewith, and entitled "Parameterization of Gradient Compensation," and U.S. Patent Application Serial No. aa / bbb,ccc, filed concurrently herewith, and entitled " Gradient Estimation / Compensation", the disclosures of these two patent applications are hereby incorporated by reference. [0002] Techniques and tools for signal-indicating fade compensation in video processing applications. For example, the video encoder performs gradient compensation on a reference picture, signals that gradient compensation is used, and signals gradient parameters for the gradient compensation. (2) Background technology [0003] Digital video uses large amounts of stora...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/06G06F9/30G06T9/00H04N19/85H04N5/262H04N7/26H04N7/32H04N7/36H04N7/50H04N19/463
CPCH04N19/00884H04N19/0026H04N19/00781H04N19/00545H04N7/5013H04N19/006H04N7/361H04N19/00587H04N19/00733H04N19/0069H04N19/00903H04N19/00315H04N19/00957H04N7/26106H04N19/17H04N19/186H04N19/46H04N19/51H04N19/517H04N19/53H04N19/61H04N19/70H04N19/85H04N19/93H04N5/262H04N19/463
Inventor S·斯里尼瓦桑S·雷格纳坦
Owner MICROSOFT TECH LICENSING LLC