Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
 
 
DownloadE-Mail
 DetailsÜbersicht
  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

 

einblenden: alle ausblenden: alle

Basisdaten

einblenden: ausblenden:
Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1CD2-8 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1CD3-6
Genre: Konferenzbeitrag

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Herzog, Robert1, 2, Autor           
Kinuwaki, Shinichi1, Autor           
Myszkowski, Karol1, Autor           
Seidel, Hans-Peter1, Autor           
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              
2International Max Planck Research School, MPI for Informatics, Max Planck Society, ou_1116551              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: 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

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2009-03-252008
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: Oxford : Blackwell
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 428103
DOI: 10.1111/j.1467-8659.2008.01115.x
URI: http://dx.doi.org/10.1111/j.1467-8659.2008.01115.x
Anderer: Local-ID: C125756E0038A185-3B410E71DC037794C12574C5005576A5-Herzog08EG
 Art des Abschluß: -

Veranstaltung

einblenden:
ausblenden:
Titel: Untitled Event
Veranstaltungsort: Crete, Greece
Start-/Enddatum: 2008-04-14 - 2008-04-14

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: The European Association for Computer Graphics 29th Annual Conference, EUROGRAPHICS 2008
Genre der Quelle: Konferenzband
 Urheber:
Drettakis, George, Herausgeber
Scopigno, Roberto, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Oxford : Blackwell
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 183 - 192 Identifikator: -

Quelle 2

einblenden:
ausblenden:
Titel: Computer Graphics Forum
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: - Identifikator: -