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Multiple reference frames motion estimation is one of the new features introduced in H.264/AVC. Although this new feature improves video coding performance, it is extremely computational intensive. Full search scheme is adopted in reference software JM, and the increased computation load is in proportion to the number of searched reference frames. In this paper, we propose a novel fast multiple reference...
In H.264/AVC, intra-prediction is utilized in the spatial domain. There are two types of intra prediction for luma-intra 16 times 16 and Intra 4 times 4. Four and nine modes are supported by intra 16 times 16 and intra 4 times 4, respectively. The full search is used to select the best modes in H.264, which is very computationally expensive. In order to speed up the mode selection procedure, a fast...
A novel algorithm for coding the intra 4times4 prediction mode selection information with combined spatial correlation of coded neighboring blocks is proposed in this work. A large number of bits are used to transmit the prediction modes of each intra coded block in the H.264/AVC standard, and these bits cost becomes more sensitive in the case of low bit rate application. The proposed algorithm utilizing...
This paper presents an improved MB level rate control scheme for H.264/AVC. By sufficiently analyzing the spatial and temporal correlation, the accuracy of mean absolute difference (MAD) estimation is enhanced. An adaptive header information prediction scheme and a suitable R-Q model history data point selection scheme are also developed to improve the accuracy of the R-Q model. Experiment results...
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