CZLoD: A psychophysical approach for 3D tele-immersive video

Wanmin Wu; Ahsan Arefin; Gregorij Kurillo; Pooja Agarwal; Klara Nahrstedt; Ruzena Bajcsy

doi:10.1145/2348816.2348818

CZLoD: A psychophysical approach for 3D tele-immersive video

Wanmin Wu, Ahsan Arefin, Gregorij Kurillo, Pooja Agarwal, Klara Nahrstedt, Ruzena Bajcsy

Research output: Contribution to journal › Article › peer-review

Abstract

This article presents a psychophysical study that measures the perceptual thresholds of a new factor called Color-plus-Depth Level-of-Details (CZLoD) peculiar to polygon-based 3D tele-immersive video. The results demonstrate the existence of Just Noticeable Degradation and Just Unacceptable Degradation thresholds on the factor. In light of the results, we design and implement a real-time perception-based quality adaptor for 3D tele-immersive video. Our experimental results show that the adaptation scheme can reduce resource usage (e.g., CPU cycles) while considerably enhancing the overall perceived visual quality. Our analysis confirms the potential temporal and spatial performance benefits achievable with CZLoD adaptation.

Original language	English (US)
Article number	39
Journal	ACM Transactions on Multimedia Computing, Communications and Applications
Volume	8
Issue number	3 SUPPL. 3
DOIs	https://doi.org/10.1145/2348816.2348818
State	Published - Sep 2012

Keywords

Adaptation
Color-plus-Depth
Level-of-Details
Psychophysics
Tele-immersive video

ASJC Scopus subject areas

Hardware and Architecture
Computer Networks and Communications

Online availability

10.1145/2348816.2348818

Library availability

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AU - Nahrstedt, Klara

AU - Bajcsy, Ruzena

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CZLoD: A psychophysical approach for 3D tele-immersive video

Abstract

Keywords

ASJC Scopus subject areas

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