Layer based hrd buffer management for scalable hevc

Inactive Publication Date: 2015-01-15
SONY CORP
View PDF21 Cites 46 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004]The buffer management methods simplify the complexity of STD buffer management for HEVC and make is easy to implement HEVC in deployed AVC/MPEG-2 networks (as legacy re-multiplexers are able to be used for re-purposing HEV

Problems solved by technology

The buffer management in Advanced Video Coding (AVC)-based scalability (Scalable Video Coding (SVC) and Multiview Video Coding (MVC)) requi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Layer based hrd buffer management for scalable hevc
  • Layer based hrd buffer management for scalable hevc
  • Layer based hrd buffer management for scalable hevc

Examples

Experimental program
Comparison scheme
Effect test

Example

[0019]Described herein are options to reduce the buffer model complexity in High Efficiency Video Coding (HEVC)-based scalability.

[0020]The scalability model as introduced in SVC (and also used in MVC) uses AVC base layer and adds scalable enhancements to achieve temporal, Signal-to-Noise Ratio (SNR) and spatial improvements. Typical SVC applications targeted use cases where bit rate savings were achieved over simulcast of ‘base layer and enhancement without scalability.’ MVC provided view enhancements using a similar model.

[0021]Some of the application use cases required transmission of AVC base layer stream to base layer decoder while the enhancement layer was transmitted separately where the SVC / MVC decoder assembled the base and enhancement layers before decoding the enhanced data.

[0022]FIG. 1 illustrates a diagram of AVC and SVC decoding according to some embodiments. The base layer video stream used a different profile and level than the [base+enhancement layer] (usually the e...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The buffer management methods simplify the complexity of STD buffer management for HEVC and make is easy to implement HEVC in deployed AVC/MPEG-2 networks (as legacy re-multiplexers are able to be used for re-purposing HEVC content). The buffers for base and enhancement layers are also also be managed independently before re-assembly and this simplifies the STD model. Re-assembly is still implemented before decoding an enhanced HEVC video stream.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application claims priority under 35 U.S.C. §119(e) of the U.S. Provisional Patent Application Ser. No. 61 / 846,552, filed Jul. 15, 2013 and titled, “LAYER BASED HRD BUFFER MANAGEMENT FOR SCALABLE HEVC” and U.S. Provisional Patent Application Ser. No. 61 / 889,980, filed Oct. 11, 2013 and titled, “MULTILAYER HRD MANAGEMENT,” which are both hereby incorporated by reference in their entireties for all purposes.FIELD OF THE INVENTION[0002]The present invention relates to the field of imaging. More specifically, the present invention relates to video coding.BACKGROUND OF THE INVENTION[0003]The buffer management in Advanced Video Coding (AVC)-based scalability (Scalable Video Coding (SVC) and Multiview Video Coding (MVC)) required an extension to system STD buffer model and introduced an additional layer of complexity to re-purposing and re-distribution equipment. The extensions required management of both the base layer buffer and buffer ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N19/46H04N19/423
CPCH04N19/00484H04N19/00545H04N19/30H04N19/423H04N19/44H04N19/70
Inventor TABATABAI, ALISATO, KAZUSHIHATTORI, SHINOBUSUZUKI, TERUHIKO
Owner SONY CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap