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Two-demensional palette coding for screen content coding

A palette and encoding technology, applied in the field of two-dimensional palette encoding for screen content encoding, can solve problems such as optimization and increased bandwidth consumption

Active Publication Date: 2016-08-24
VID SCALE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Video encoding tools, such as chunked encoding modes and transitions, are not optimized for encoding screen content and increase bandwidth consumption for delivering screen content

Method used

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  • Two-demensional palette coding for screen content coding
  • Two-demensional palette coding for screen content coding
  • Two-demensional palette coding for screen content coding

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 is a block diagram depicting an example screen content sharing system. The screen content sharing system may include a receiver 10 , a decoder 12 and a display (eg, a renderer) 14 . Receiver 10 may receive video signals and demodulate them for forwarding to decoder 12 , which may decode the video stream and generate a number of separate pictures stored in a number of picture buffers 16 that may be output to display 14 .

[0027] figure 2 Yes description can be used as figure 1 The block diagram of an example block-based single-layer decoder for decoder 12. It can receive the video bitstream 201 produced by the encoder and reconstruct the video signal to be displayed. At the video decoder, the bitstream 201 may be parsed by an entropy decoder 203 . The residual coefficients may be inverse quantized in dequantizer logic block 205 and inverse transformed in inverse transform logic block 207 to obtain reconstructed residual signal 209 . The coding mode and p...

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PUM

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Abstract

Video data, e.g., screen content video data may be palette coded. A palette table including one or more color indices may be produced. A color index may correspond to one color. A palette index map may be created that maps one or more pixels of the v ideo data to a color index in the palette table, or a color that may be explicitly coded. A. palette index map prediction data may be generated that includes data that indicates values in the palette index map associated with at least some portions of the video data that are generated in a traverse scan order in which a scan line is scanned in an opposite direction of a preceding parallel scan line.

Description

[0001] Cross References to Related Applications [0002] This application is U.S. Provisional Patent Application Serial No. 61 / 923,132 filed January 2, 2014, U.S. Provisional Patent Application Serial No. 61 / 953,704 filed March 14, 2014, U.S. Provisional Patent Application Serial No. 61 / 953,704 filed April 3, 2014 Provisional Patent Application Serial No. 61 / 974,961, U.S. Provisional Patent Application Serial No. 62 / 002,144, filed May 22, 2014, U.S. Provisional Patent Application Serial No. 62 / 016,562, filed June 24, 2014, The content of said application is hereby incorporated by reference. Background technique [0003] Screen content sharing applications have become very popular in recent years as remote desktop, video conferencing, and mobile media presentation applications have increased in popularity. There are application requirements from industry. Screen content may relate to video including, for example, outlines (eg, two separate pictures simultaneously displayed on...

Claims

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Application Information

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IPC IPC(8): H04N19/70H04N19/147H04N19/129H04N19/463H04N19/186H04N19/90
CPCH04N19/129H04N19/147H04N19/186H04N19/463H04N19/70H04N19/90H04N19/44H04N19/567H04N19/593H04N19/61G06F3/1454
Inventor C-M·蔡修晓宇叶琰贺玉文
Owner VID SCALE INC
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