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Proceedings Paper

Rate-adaptive H.264 video for information for global reach (IFGR)
Author(s): Praveen Kota; Karthik Kannan; Zixiang Xiong; Pankaj Topiwala; David Hench
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Paper Abstract

Rate control for video transmission becomes extremely important in "bandwidth-precious" scenarios and added real-time constraints such as joint source channel coding make it even more vital. Hence, there has always been a demand for simple and efficient rate control algorithms. The approximate linear relationship between coding rate (R) and percentage of zeros among the quantized spatial transform coefficients (ρ) is exploited in the present work, to cater to such low-bandwidth, low-delay applications. The current rate control algorithm for H.264 is used as the benchmark for comparison. The extensive experimental results show that ρ-Domain model outperforms the existing algorithm with a more robust rate control, besides yielding a similar or improved Peak Signal to Noise Ratio (PSNR) and being faster

Paper Details

Date Published: 16 September 2005
PDF: 12 pages
Proc. SPIE 5909, Applications of Digital Image Processing XXVIII, 59090U (16 September 2005); doi: 10.1117/12.623855
Show Author Affiliations
Praveen Kota, Texas A and M Univ. (United States)
Karthik Kannan, Texas A and M Univ. (United States)
Zixiang Xiong, Texas A and M Univ. (United States)
Pankaj Topiwala, FastVDO LLC (United States)
David Hench, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 5909:
Applications of Digital Image Processing XXVIII
Andrew G. Tescher, Editor(s)

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