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A fast intra mode decision algorithm for H.264/AVC is proposed in this paper. The objective is to reduce the encoder complexity without significant rate-distortion performance degradation. Three methods are adopted: (1) the block size is selected between 4times4 block and 16times16 block based on the smoothness and correlation information. (2) A(More)
To more effectively reduce temporal and spatial redundancy in the MPEG-4 Part-10 AVC/H.264, motion compensation uses variable block sizes and directional inter prediction investigates all available coding modes to determine the best one. However, these functions are performed for all variable block sizes, high complexity results due to the large number of(More)
Reducing the feature dimensionality can improve the computational efficiency of electrocardiogram (ECG) beats classification system. In the long term ECG classification task, vector quantization has demonstrated its advantage in both dimensionality reduction and accuracy increase, but the existing vector quantization methods are not capable of representing(More)
A fast inter mode decision algorithm for H.264 is proposed in this paper. Computational savings are achieved by identifying macroblocks (MBs) that are likely to be skipped in advance. This early prediction are made by three steps: 1) Based on the correlation of MBs and threshold, prior to motion estimation (ME), SKIP mode can be decided; 2) After ME, if the(More)
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