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- W3150742703 abstract "Computation of H.264 Intra prediction is complex,which is the bottleneck of intra-encoding.After analyzing the features of multi-mode prediction,a fast algorithm is proposed,which is based on the block texture direction and characteristics of reference pixel.First,Prewitt operator is used to estimate block texture directions,and according to these directions corresponding prediction modes are decided.Then the differences of the reference pixel are calculated,and then unnecessary modes of Intra4x4 are deleted.The number of prediction modes and algorithm complexity are reduced effectively.The simulation results on four video sequences with different characters show that,compared with the H.264 JM13.2 encoder,the proposed algorithm can reduce average coding time by 75.7% while decreasing average PSNR by 0.16dB and increasing average bit rate by 3.45%.Its performance is better than the previous algorithms." @default.
- W3150742703 created "2021-04-13" @default.
- W3150742703 creator A5086061727 @default.
- W3150742703 date "2010-01-01" @default.
- W3150742703 modified "2023-09-28" @default.
- W3150742703 title "A Fast Algorithm of H.264 Intra-Modes Decision" @default.
- W3150742703 hasPublicationYear "2010" @default.
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