H.236+ I-frame coding with a hybrid DCT/wavelet transform

Hwangjun Song; JongWon Kim; C.-C. Jay Kuo

doi:10.1117/12.323185

1 October 1998 H.236+ I-frame coding with a hybrid DCT/wavelet transform

Hwangjun Song, JongWon Kim, C.-C. Jay Kuo

Proceedings Volume 3460, Applications of Digital Image Processing XXI; (1998) https://doi.org/10.1117/12.323185
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A low bit rates, the bit budget for I-frame coding in H.263+ can be too high to be practical. A hybrid DCT/wavelet transform based I-frame coding is proposed in this work as a solution to the rate control problem. This new coder is compatible with the H.263+ bit stream syntax, and aims at an R-D optimized performance with a reasonable amount of computational complexity. By employing fast estimation of the coding efficiency with a rate- distortion model and performing an R-D based rate allocation, the hybrid coding scheme achieves higher coding gain at low bit rates.

Citation Download Citation

Hwangjun Song, JongWon Kim, and C.-C. Jay Kuo "H.236+ I-frame coding with a hybrid DCT/wavelet transform", Proc. SPIE 3460, Applications of Digital Image Processing XXI, (1 October 1998); https://doi.org/10.1117/12.323185

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