A New Algorithm for Fastintra-Frame Modes Selection in H.264/Avc Video Coding
Subject Areas :Mahnaz Nejadali 1 , mahdi jafari 2 , majid mohammadi 3
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Keywords: Video Coding, H.264/AVC, Prediction, Intra-Frame, RDO,
Abstract :
By the increasing of video communication in portable and functional devices, encoders design with low complexity and high performance are required. H.264 / AVC standard offers higher compression efficiency than previous standards. But this standard by employing several powerful coding techniques, considerably increased complexity at the encoder. This paper presents a new algorithm to reduce the complexity of the H.264/AVC encoder. The proposed method uses simple directional masks, neighboring blocks modes and detection of 4×4 and/or 16×16 intra estimation modes with determination of quantization parameters for fast mode selection in Intra-Frame Modes prediction. Experimental results show that the proposed method reduces maximum 29% of the encoding time, while has little effect on visual quality and PSNR.
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