Li X, Amon P, Hutter A, Kaup A (2009)
Publication Language: English
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2009
Publisher: IEEE Computer Society
Pages Range: 3765-3768
Article Number: 5414354
ISBN: 978-1-4244-5654-3
DOI: 10.1109/ICIP.2009.5414354
Originally, hierarchical prediction structures were proposed to achieve temporal scalability. Soon after, it was realized that with a proper quantization parameter cascading (QPC) scheme the general performance can be significantly improved by hierarchical coding. However, the theory behind the gain has not been explored so far. In this paper, the QPC in hierarchical coding is investigated by model based emulations. From the analysis, it is noticed that a parameter β which represents the error propagation in a group of pictures greatly affects the performance of QPC in hierarchical coding. Based on β, a simple adaptive QPC algorithm is designed. Simulations verify the efficiency of this algorithm: a gain up to 0.89 dB is obtained over the most recent SVC reference software. ©2009 IEEE.
APA:
Li, X., Amon, P., Hutter, A., & Kaup, A. (2009). Model based analysis for quantization parameter cascading in hierarchical video coding. In Proceedings of the 2009 IEEE International Conference on Image Processing, ICIP 2009 (pp. 3765-3768). Cairo, EG: IEEE Computer Society.
MLA:
Li, Xiang, et al. "Model based analysis for quantization parameter cascading in hierarchical video coding." Proceedings of the 2009 IEEE International Conference on Image Processing, ICIP 2009, Cairo IEEE Computer Society, 2009. 3765-3768.
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