Low-overhead content-adaptive spatial scalability for scalable video coding

Chia Wen Lin, Chia Ming Tsai, Po Chun Chen, Li Wei Kang

研究成果: 書貢獻/報告類型會議論文篇章

1 引文 斯高帕斯(Scopus)

摘要

To support spatial scalability, the scalable extension of H.264/AVC (SVC) uses video cropping or uniform scaling to downscale the original higher-resolution (HR) sequence to a lower resolution (LR) one. Both operations, however, will cause critical visual information loss in the retargeted frames. The content-adaptive spatial scalability SVC coders (CASS-SVC) use non-homogeneous scaling to avoid critical information loss, which, however, requires to send additional side information to signal the decoder, thereby degrading coding efficiency significantly. To address the problem, we propose a low-overhead CASS-SVC coder consisting of three main modules: a mosaic-guided video retargeter, a side-information coder, and a non-homogeneous inter-layer predictive coder. Our experimental results demonstrate that, compared to existing CASS-SVC coders, our method cannot only well preserve subjective quality of important content in the LR sequence, but also significantly improves the coding efficiency of HR sequence.

原文英語
主出版物標題2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Proceedings
頁面235-239
頁數5
DOIs
出版狀態已發佈 - 2013
對外發佈
事件2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Beijing, 中国
持續時間: 2013 7月 62013 7月 10

出版系列

名字2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Proceedings

會議

會議2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013
國家/地區中国
城市Beijing
期間2013/07/062013/07/10

ASJC Scopus subject areas

  • 資訊系統
  • 訊號處理

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