Abstract
The hybrid coding method to combine the predictive coding with the orthogonal transformation and the quantization is mainly used recently. This paper describes the hybrid coding method which uses Interpolative prediction and orthogonal quantization. Interpolative prediction uses correlations between neighboring pixels, including non-causal pixels, for high prediction performance, in contrast to conventional prediction, which uses only causal pixels. The optimal quantizing scheme is used to cancel the error that expands when decoding. Using orthogonal quantization including orthogonal transformation and quantization, we aim higher compression rate than that of the method using only quantization.
