A fast H.264 intra prediction algorithm using macroblock properties

• Published in: 2004 International Conference on Image Processing, 2004. ICIP '04 Vol. 1; pp. 461 - 464 Vol. 1
• Main Authors: YANG, Chun-Ling, PO, Lai-Man, LAM, Wing-Hong
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Applied sciences; Arithmetic; Artificial intelligence; Computer science; control theory; systems; Cost function; Educational institutions; Encoding; Entropy coding; Exact sciences and technology; Pattern recognition. Digital image processing. Computational geometry; Prediction algorithms; PSNR; Software algorithms; Transform coding; Video coding; Video coding; Image coding; Image processing; Fast algorithm; Search algorithm
• ISBN: 0780385543; 9780780385542
• ISSN: 1522-4880
• DOI: 10.1109/ICIP.2004.1418790

In the newest video coding standard of H.264, intra frame prediction is conducted in the spatial domain. There are two types of intra prediction for luma - Intra/spl I.bar/16/spl times/16 does prediction for the whole 16/spl times/16 luma macroblock and Intra/spl I.bar/4/spl times/4 does prediction for 4/spl times/4 block. Four and nine modes are supported by Intra/spl I.bar/16/spl times/16 and Intra/spl I.bar/4/spl times/4, respectively. The full search algorithm is used in the JVT reference software to choose the best modes, however it is very computationally expensive. In this paper, a new fast intra prediction algorithm using macroblock properties (FIPAMP) is proposed. Experimental results show that the proposed fast algorithm can achieve 10% to 40% computation reduction while maintaining similar PSNR and bit rate performance of H.264 codes.