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Towards efficient context-specific video coding based on gaze-tracking analysis

delete2007-12-12
delete6
PRE
AI
D
Dimitris K. Agrafiotis *
N
Nishan Canagarajah
D
David Bull
DOI:10.1145/1314303.1314307delete
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Abstract

Abstract

En 中文
This article discusses a framework for model-based, context-dependent video coding based on exploitation of characteristics of the human visual system. The system utilizes variable-quality coding based on priority maps which are created using mostly context-dependent rules. The technique is demonstrated through two case studies of specific video context, namely open signed content and football sequences. Eye-tracking analysis is employed for identifying the characteristics of each context, which are subsequently exploited for coding purposes, either directly or through a gaze prediction model. The framework is shown to achieve a considerable improvement in coding efficiency.
Keywords:
algorithms
human factors
eye tracking
context-based video coding
subjective video quality
transformation of eye movements into useful knowledge
multimedia perceptual quality
applications

Journal

ACM Transactions on Multimedia Computing Communications and Applications cover
ACM Transactions on Multimedia Computing Communications and Applications
IF:
6
Papers:
2.0K
Citations:
5.4K

Organization

U
University of Bristol
Scholars:
3.1W
Papers: 3.0W
Citations: 5.3W