English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 DetailsSummary
  Render2MPEG: A Perception-based Framework Towards Integrating Rendering and Video Compression

Herzog, R., Kinuwaki, S., Myszkowski, K., & Seidel, H.-P. (2008). Render2MPEG: A Perception-based Framework Towards Integrating Rendering and Video Compression. In G. Drettakis, & R. Scopigno (Eds.), The European Association for Computer Graphics 29th Annual Conference, EUROGRAPHICS 2008 (pp. 183-192). Oxford: Blackwell.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1CD2-8 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1CD3-6
Genre: Conference Paper

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Herzog, Robert1, 2, Author           
Kinuwaki, Shinichi1, Author           
Myszkowski, Karol1, Author           
Seidel, Hans-Peter1, Author           
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              
2International Max Planck Research School, MPI for Informatics, Max Planck Society, ou_1116551              

Content

show
hide
Free keywords: -
 Abstract: Currently 3D animation rendering and video compression are completely independent processes even if rendered frames are streamed on-the-fly within a client-server platform. In such scenario, which may involve time-varying transmission bandwidths and different display characteristics at the client side, dynamic adjustment of the rendering quality to such requirements can lead to a better use of server resources. In this work, we present a framework where the renderer and MPEG codec are coupled through a straightforward interface that provides precise motion vectors from the rendering side to the codec and perceptual error thresholds for each pixel in the opposite direction. The perceptual error thresholds take into account bandwidth-dependent quantization errors resulting from the lossy compression as well as image content-dependent luminance and spatial contrast masking. The availability of the discrete cosine transform (DCT) coefficients at the codec side enables to use advanced models of the human visual system (HVS) in the perceptual error threshold derivation without incurring any significant cost. Those error thresholds are then used to control the rendering quality and make it well aligned with the compressed stream quality. In our prototype system we use the lightcuts technique developed by Walter et al., which we enhance to handle dynamic image sequences, and an MPEG-2 implementation. Our results clearly demonstrate many advantages of coupling the rendering with video compression in terms of faster rendering. Furthermore, temporally coherent rendering leads to a reduction of temporal artifacts.

Details

show
hide
Language(s): eng - English
 Dates: 2009-03-252008
 Publication Status: Issued
 Pages: -
 Publishing info: Oxford : Blackwell
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 428103
DOI: 10.1111/j.1467-8659.2008.01115.x
URI: http://dx.doi.org/10.1111/j.1467-8659.2008.01115.x
Other: Local-ID: C125756E0038A185-3B410E71DC037794C12574C5005576A5-Herzog08EG
 Degree: -

Event

show
hide
Title: Untitled Event
Place of Event: Crete, Greece
Start-/End Date: 2008-04-14 - 2008-04-14

Legal Case

show

Project information

show

Source 1

show
hide
Title: The European Association for Computer Graphics 29th Annual Conference, EUROGRAPHICS 2008
Source Genre: Proceedings
 Creator(s):
Drettakis, George, Editor
Scopigno, Roberto, Editor
Affiliations:
-
Publ. Info: Oxford : Blackwell
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 183 - 192 Identifier: -

Source 2

show
hide
Title: Computer Graphics Forum
Source Genre: Series
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -