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2009 Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing
Quantization Parameter Decision of Initial and Scene Change Frame in Real-Time H.264/AVC
Kyoto, Japan
September 12-September 14
ISBN: 978-0-7695-3762-7
| ASCII Text | x | ||
| Szu-Hong Wang, Shih-Chang Hsia, "Quantization Parameter Decision of Initial and Scene Change Frame in Real-Time H.264/AVC," Intelligent Information Hiding and Multimedia Signal Processing, International Conference on, pp. 218-221, 2009 Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2009. | |||
| BibTex | x | ||
| @article{ 10.1109/IIH-MSP.2009.39, author = {Szu-Hong Wang and Shih-Chang Hsia}, title = {Quantization Parameter Decision of Initial and Scene Change Frame in Real-Time H.264/AVC}, journal ={Intelligent Information Hiding and Multimedia Signal Processing, International Conference on}, volume = {0}, year = {2009}, isbn = {978-0-7695-3762-7}, pages = {218-221}, doi = {http://doi.ieeecomputersociety.org/10.1109/IIH-MSP.2009.39}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - CONF JO - Intelligent Information Hiding and Multimedia Signal Processing, International Conference on TI - Quantization Parameter Decision of Initial and Scene Change Frame in Real-Time H.264/AVC SN - 978-0-7695-3762-7 SP218 EP221 A1 - Szu-Hong Wang, A1 - Shih-Chang Hsia, PY - 2009 KW - H.264 KW - rate control KW - scene change KW - initial quantization parameter VL - 0 JA - Intelligent Information Hiding and Multimedia Signal Processing, International Conference on ER - | |||
In the first-I frame or scene-change frame, unsuitable quantization parameter (QP) has lower quality and more fluctuation. In this paper, we proposed an adaptive spatial algorithm to obtain a suitable QP of these frames in order to improve quality. We exploit a Laplacian of Gaussian (LoG) operator to analyze the video content to adaptively decide the initial QP. Then, the QP of scene-change frame is adaptively re-calculated by LoG operator when a scene-change frame is detected. Experimental results revealed that the proposed adaptive algorithm improve PSNR by 0.42dB.
Index Terms:
H.264, rate control, scene change, initial quantization parameter
Citation:
Szu-Hong Wang, Shih-Chang Hsia, "Quantization Parameter Decision of Initial and Scene Change Frame in Real-Time H.264/AVC," iih-msp, pp.218-221, 2009 Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2009
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