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Scalable video coding method and device

A video coding and video technology, applied in the field of video coding

Active Publication Date: 2012-01-11
HONG KONG APPLIED SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The present invention provides spatial scalability and quality scalability without complex modifications to existing codecs

Method used

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  • Scalable video coding method and device
  • Scalable video coding method and device
  • Scalable video coding method and device

Examples

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Embodiment Construction

[0039] figure 1 A generic device with scalable video coding capabilities according to some embodiments of the invention is described. The generic device 130 has one or more processors 110 that perform functions such as control and processing. The generic device 130 further includes one or more memory units, which store one or more programs. The program is configured to be executed by the one or more processors 110 and includes instructions according to the scalable video coding method of the present invention disclosed herein.

[0040] figure 2 A flowchart for generating LR video frames and HRLQ video frames from HRHQ video frames during scalable video coding is described in accordance with certain embodiments. The source video is also considered a High Resolution High Quality (HRHQ) layer. HRHQ video frame 210 is a video frame at the HRHQ layer. A scalable encoder can generate several streams simultaneously from source video. For example, low pass filter 220 is applied...

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Abstract

The invention relates to a scalable video coding method and a scalable video coding device. Particularly, the invention describes the scalable video coding method and a hierarchical video representation. The hierarchical video representation acquires a better video quality by using a more effective bit stream representation and scalability and meets the standards of various codecs from a base layer to a reinforcement layer so as to bring least modification to the conventional hardware or systems in the field.

Description

technical field [0001] The present invention relates generally to video coding, and in particular to scalable video coding (SVC). Background technique [0002] Scalability is a desirable feature for many multimedia applications, such as peer-to-peer (P2P) real-time video streaming, multiparty video conferencing, and peer-to-peer video sessions. For example, in P2P content streaming, content providers expect to provide multimedia content of different qualities at different prices, for example, low-resolution preview versions of multimedia content may be free. Scalability can be measured in terms of spatial scalability, mass scalability, temporal scalability, or even combined scalability, which generally refers to a combination of spatial, mass, and temporal scalability. Spatial scalability and temporal scalability describe the situation where a subset of the bitstream represents source content with reduced image size (spatial resolution) or frame rate (temporal resolution), ...

Claims

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Application Information

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IPC IPC(8): H04N7/46H04N7/26H04N19/117H04N19/30H04N19/44
Inventor 武燕楠方来发雷志斌
Owner HONG KONG APPLIED SCI & TECH RES INST
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