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Classification-based multidimensional adaptation prediction for scalable video coding using subjective quality evaluation

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4 Author(s)
Yong Wang ; Dept. of Electr. Eng., Columbia Univ., New York, NY, USA ; van der Schaar, M. ; Shih-Fu Chang ; Loui, A.C.

Scalable video coding offers a flexible representation for video adaptation in multiple dimensions comprising spatial detail and temporal resolution, thus providing great benefits for universal media access (UMA) applications. However, currently most of the approaches address the multidimensional adaptation (MDA) problem in an ad hoc manner. One challenging issue affecting the systematic MDA solution is the difficulty in constructing analytical models in theoretical optimization that capture the relations between video utility and MDA operations. In this paper, we propose a general classification-based prediction framework for selecting the preferred MDA operations based on subjective quality evaluation. For this purpose, we first apply domain-specific knowledge or general unsupervised clustering to construct distinct categories within which the videos share similar preferred MDA operations. Thereafter, a machine learning based method is applied where the low level content features extracted from the compressed video streams are employed to train a framework for the problem of joint signal-to-noise ratio (SNR)-temporal adaptation selection based on the motion compensated three-dimensional subband coding (MC-3DSBC) system. We conduct extensive subjective tests involving 31 subjects, 128 video clips, and formal subjective quality metrics. Statistical analysis of the experimental results confirms the excellent accuracy in using domain knowledge and content features to predict the MDA operation.

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Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:15 ,  Issue: 10 )