Patent ID: 6606414
Filing Date: 2003-08-12
Classification: H04N

Abstract:
A method for encoding a digitalized image with image segments that include picture elements to which a respective encoding information is allocated, upon employment of a stored, chronologically proceeding image having preceding image segments that have preceding picture elements to which a respectively preceding encoding information is allocated, comprising the steps of:selecting a preceding image segment dependent on a predetermined start vector that indicates a topical shift of an image segment relative to the preceding image segment; forming an error criterion between encoding information of the image segment and preceding encoding information of the preceding image segment; forming the error criterion such that differences of the encoding information of different picture elements are differently weighted; carrying out a check to see whether the error criterion is smaller than a threshold; when the error criterion is smaller than the threshold, avoiding subjecting the image segment to any residual error encoding; subjecting the image segment to the residual error encoding and to an entropy encoding when the error criterion is not smaller than the threshold; wherein said threshold is a first threshold, and wherein when the error criterion is smaller than the first threshold, the following steps are implemented: forming at least one further error criterion for an image segment between the image segment and the preceding image segment; when the second error criterion is smaller than a second threshold, avoiding subjecting the image segment to any residual error encoding; and subjecting the image segment to the residual error encoding and to an entropy encoding if the second error criterion is not smaller than the second threshold.