Fast Macroblock Mode Determination to Reduce H.264 Complexity

Ki-Hun HAN  Yung-Lyul LEE  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E88-A   No.3   pp.800-804
Publication Date: 2005/03/01
Online ISSN: 
DOI: 10.1093/ietfec/e88-a.3.800
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Image
H.264,  rate-distortion optimization (RDO),  variable block size motion estimation (ME),  discrete cosine transform (DCT),  

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The rate-distortion optimization (RDO) method is an informative technology that improves the coding efficiency, but increases the computational complexity, of the H.264 encoder. In this letter, a fast Macroblock mode determination algorithm is proposed to reduce the computational complexity of the H.264 encoder. The proposed method reduces the encoder complexity by 55%, while maintaining the same level of coding efficiency.