Title :
An adaptive sharpening filter using quantization step size and pixel variance in H.264/AVC
Author :
Oh, Sye-Hoon ; Lee, Yeo-Song ; Kim, Heon-Joo ; Kim, Seong-Hoon
Author_Institution :
New Media Center, Galaxia Commun. Co., Ltd., South Korea
Abstract :
In this paper, we present an adaptive sharpening filter for a pre-processing to improve the subjective quality and the performance of H.264/AVC compression. We use quantization step size and pixel variance to select sharpening filter strength. The simulation results show that the proposed pre-processing filtering process improves the subjective quality and reduces bit rate about 0.85%(CIF) and 1.46%(1080p).
Keywords :
adaptive filters; data compression; error statistics; quantisation (signal); video coding; H.264/AVC compression; adaptive sharpening filter; pixel variance; pre-processing filtering process; quantization step size; sharpening filter strength; subjective quality; Adaptive filters; Automatic voltage control; Encoding; Filtering; Pixel; Quantization; Silicon;
Conference_Titel :
Consumer Electronics (ICCE), 2011 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-8711-0
DOI :
10.1109/ICCE.2011.5722610
