Patent Document ID: 20080084929
Application ID: 11734894
Patent Status: 0

Claim One:
1. A method for video coding a sequence of digitized images, comprising: a) predicting contents of each image utilizing a rate distortion optimization criterion that is dependent on a Lagrange multiplier, thereby determining a prediction error; b) transforming the prediction error resulting from predicting step (a) into a plurality of transformed residual coefficients in each image; c) quantizing the transformed residual coefficients in each image; and d) determining the Lagrange multiplier for each image based on a probability distribution of the transformed residual coefficients of the respective image, the probability distribution having its maximum probability at its mean zero and being formed such that the probabilities decrease to zero from the mean to large absolute values of the transformed residual coefficients, wherein a variance of the probability distribution is calculated from the plurality of transformed residual coefficients in the respective image.