A comparative study on attention-based rate adaptation for scalable video coding

Chia Ming Tsai*, Chia Wen Lin, Weisi Lin, Wen-Hsiao Peng

*此作品的通信作者

研究成果: Conference contribution同行評審

3 引文 斯高帕斯(Scopus)

摘要

We conduct subjective tests to evaluate the performance of scalable video coding with different spatial-domain bit-allocation methods, visual attention models, and motion feature extractors in the literature. For spatial-domain bit allocation, we use the selective enhancement and quality layer assignment methods. For characterizing visual attention, we use the motion attention model and perceptual quality significant map. For motion features, we adopt motion vectors from hierarchical B-picture coding and optical flow. Experimental results show that a more accurate visual attention model leads to better perceptual quality. In cooperation with a visual attention model, the selective enhancement method, compared to the quality layer assignment, achieves better subjective quality when an ROI has enough bit allocation and its texture is not complex. The quality layer assignment method is suitable for region-wise quality enhancement due to its frame-based allocation nature.

原文English
主出版物標題2009 IEEE International Conference on Image Processing, ICIP 2009 - Proceedings
發行者IEEE Computer Society
頁面969-972
頁數4
ISBN(列印)9781424456543
DOIs
出版狀態Published - 1 一月 2009
事件2009 IEEE International Conference on Image Processing, ICIP 2009 - Cairo, Egypt
持續時間: 7 十一月 200910 十一月 2009

出版系列

名字Proceedings - International Conference on Image Processing, ICIP
ISSN(列印)1522-4880

Conference

Conference2009 IEEE International Conference on Image Processing, ICIP 2009
國家/地區Egypt
城市Cairo
期間7/11/0910/11/09

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