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This paper presents two low complexity macroblock-level MAD (Mean Absolute Difference) prediction algorithms for H.264/AVC rate control. Both of the algorithms consider the rate-distortion performance and its hardware cost jointly. One of the algorithms predicts the MAD value by observing the motion vector of the surrounding macroblocks (MB), the other one uses numerical analysis to find the best...
The MPEG-4 H.264/AVC video coding standard adopts variable block sizes for inter frame coding to increase compression efficiency. However, to achieve this, the H.264 encoder employs a complex mode decision technique based on rate-distortion optimization (RDO) that requires high computational complexity, which significantly increases the encoder complexity. This paper proposes a fast hierarchal cross...
In this paper, we propose an approximate square criterion for H.264/AVC intra mode decision. The sum of square difference (SSD) criterion achieves the best video quality but takes much high computation due to the square operation. A sum of approximate square difference (SASD) criterion is proposed to maintain the video quality and reduce the computation. By applying the characteristic of the SSD criterion,...
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