Patent ID: 6134269
Filing Date: 2000-10-17
Classification: G06T,H04N

Abstract:
A method for coding an image comprising the steps of:a) deinterleaving the image to form a plurality of image subsets;b) transforming the plurality of image subsets into a plurality of transform coefficients;c) converting the plurality of transform coefficients to a plurality of samples;d) performing an entropy encoding of the plurality of samples to form an encoded bit stream;said step c) comprising:(i) quantizing the plurality of transform coefficients to form a plurality of quantized values;(ii) performing a DC and AC coefficient prediction on the plurality of quantized values to form a plurality of predicted values;(iii) determining a difference between the plurality of predicted values and the plurality of quantized values to form a plurality of difference values; and(iv) scanning the plurality of difference values to form the plurality of samples.