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Sample adaptive offset (SAO) in accordance with video coding

A frequency band offset, video signal technology, applied in the direction of digital video signal modification, television, electrical components, etc., can solve the problem of low complexity of communication equipment

Inactive Publication Date: 2013-08-14
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current technology does not adequately or acceptably provide a means by which video data can be transmitted from a first location to a second location based on providing sufficient or acceptable video and / or image quality to warrant associated communications The relatively small amount of overhead, and the relatively low complexity of the communication equipment at each communication link end, etc.

Method used

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  • Sample adaptive offset (SAO) in accordance with video coding
  • Sample adaptive offset (SAO) in accordance with video coding
  • Sample adaptive offset (SAO) in accordance with video coding

Examples

Experimental program
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Embodiment Construction

[0092] In many devices that use digital media, such as digital video, individual images (which are digital in nature) are represented by pixels. In some communication systems, digital media may be transmitted from a first location to a second location where such media may be output or displayed. The purpose of digital communication systems, including those operating to communicate digital video, is to transmit digital data from one location or subsystem to another without error or with an acceptably low bit error rate. Such as figure 1 As shown, data may be transmitted over various communication channels in various communication systems: magnetic media, wired, wireless, fiber optics, copper, and / or other types of media.

[0093] figure 1 with figure 2 Various embodiments of communication systems 100 and 200 are shown, respectively.

[0094] refer to figure 1 , an embodiment of the communication system 100 is a communication channel 199 that communicatively couples a comm...

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Abstract

Sample adaptive offset (SAO) in accordance with video coding. SAO filtering can be performed before e-blocking processing (e.g., in accordance with video signal decoding and / or encoding). For example, a receiver and / or decoder communication device can receive signaling from a transmitter and / or encoder communication device that includes various band offsets. Corresponding band indices can be determined via analysis of the received video signal (e.g., received from the transmitter and / or encoder communication device), inferentially without requiring signaling of such band indices from the transmitter and / or encoder communication device. Upon appropriate analysis of one or more largest coding units (LCUs) generated from the video signal to determine a pixel value distribution (e.g., which may be using a histogram in one instance), then based on that pixel value distribution, the band indices are identified and the band offsets applied thereto.

Description

[0001] Cross references to related patents / patent applications [0002] This application claims U.S. Provisional Patent Application No. 61 / 597,683, filed Feb. 10, 2012, U.S. Provisional Patent Application No. 61 / 598,326, filed Feb. 13, 2012, U.S. Provisional Patent Application No. 61 / 598,326, filed Feb. 24, 2012 Priority to Application Serial No. 61 / 603,190, U.S. Patent Application No. 13 / 623,765, filed September 20, 2012, and U.S. Patent Application No. 13 / 758,169, filed February 4, 2013, which are hereby incorporated by reference refer to. technical field [0003] The present invention relates generally to digital video processing; more particularly, to processing and operations in accordance with such digital video processing. Background technique [0004] Communication systems that operate to transmit digital media (eg, images, video, data, etc.) have continued to be developed over the years. For such communication systems employing some form of video data, multiple di...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/50H04N19/117H04N19/124H04N19/44H04N19/61H04N19/625H04N19/82
Inventor 陈培松温伟杰
Owner KONINKLJIJKE PHILIPS NV
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