Horizontal Spatial Prediction for High Dimension Intra Coding
DCC '10 Proceedings of the 2010 Data Compression Conference
An adaptive divide-and-predict coding for intra-frame of H.264/AVC
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Iterative Wiener filters for image restoration
IEEE Transactions on Signal Processing
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive Single-Multiple Prediction for H.264/AVC Intra Coding
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive Interpolation-Based Divide-and-Predict Intra Coding for H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
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The H.264/AVC video coding standard can achieves higher compression performance than previous video coding standards, such as MPEG-2, MPEG-4, and H.263. Especially, in order to obtain the high coding performance in intra pictures, the H.264/AVC encoder employs various directional spatial prediction modes and the rate-distortion (RD) optimization technique inducing high computational complexity. For further improvement in the coding performance with the low computational complexity, we introduce a sampling-based intra coding method. The proposed method generates two sub-images, which are defined as a sampled sub-image and a prediction error sub-image in this paper, from an original image through horizontal or vertical sampling and prediction processes, and then each sub-image is encoded with different intra prediction modes, quantization parameters, and scanning patterns. Experimental results demonstrate that the proposed method significantly improves the intra coding performance and reduces the encoding complexity with the smaller number of the RD cost calculation process.