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Scalable video coding method and device

A coding method and coding device technology, applied in the field of scalable video coding, can solve the problems of not providing space scaling and quality scaling, and achieve the best flexibility and high coding efficiency.

Active Publication Date: 2016-12-21
HFI INNOVATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In the current HEVC, only a single-layer encoding based on the hierarchical-B (hierarchical-B) encoding architecture is provided, but no space scaling and quality scaling are provided.

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  • Scalable video coding method and device

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Embodiment Construction

[0031] In HEVC, the coding unit (Coding Unit) architecture is introduced as a new block architecture for encoding processing. An image is first divided into Large Coding Units (Large Coding Units, hereinafter referred to as LCUs), and each LCU is adaptively divided into CUs until a leaf coding unit (leaf coding unit) is obtained or the minimum coding unit size is reached. The CU architecture information needs to be transferred to the decoder side to restore the same CU architecture at the decoder side. In order to improve the coding efficiency related to the CU architecture used for scaling HEVC, one embodiment of the present invention allows the CU architecture of the base layer (BaseLayer, hereinafter referred to as BL) to be reused by the enhancement layer (Enhancement Layer, hereinafter referred to as EL). . At the LCU level or CU level of the EL, a flag may be sent to indicate whether the CU architecture is reused by the corresponding CU of the BL. If the CU frame of th...

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Abstract

The invention discloses a scalable video encoding method and device. Video data is configured into a base layer and an enhancement layer, and the enhancement layer has higher spatial resolution or better video quality than the base layer. According to an embodiment of the invention, information from the base layer is used to encode the enhancement layer. The information used to encode the enhancement layer includes coding unit architecture, motion vector predictor information, motion vector predictor / merging candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptation Entropy coding, adaptive loop filtering, sample point adaptive offset, and deblocking filtering. The above-mentioned scalable video coding method and device can provide space scaling and quality scaling capabilities, and can obtain higher coding efficiency and / or better flexibility.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application Serial No. 61 / 495,740, filed June 10, 2011, entitled "Scalable Coding of High Efficiency Video Coding," and Serial No. 61 / 567,774, U.S. provisional patent application filed December 7, 2011. The entire contents of the aforementioned US Provisional Patent Application are hereby incorporated by reference. technical field [0003] The present invention relates to video coding, and in particular, the present invention relates to scalable video coding using base layer information for enhancement layer coding. Background technique [0004] Compressed digital video is widely used in various applications such as video streaming in digital networks and video transmission in digital channels. Often, a single video content can be transmitted across a network with different characteristics. For example, live sports events for high quality video services ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/119H04N19/33H04N19/463H04N19/52
CPCH04N19/187H04N19/30H04N19/33H04N19/463H04N19/61H04N19/70H04N19/82H04N19/91H04N19/86H04N19/96H04N19/119H04N19/52H04N19/517H04N19/51
Inventor 庄子德陈庆晔傅智铭黄毓文雷少民
Owner HFI INNOVATION INC