Patent ID: 9014498
Filing Date: 2015-04-21
Classification: H04N

Abstract:
1. A method of encoding a signal, comprising blocks of values in order to obtain a bitstream, the method comprising the steps of: representing a block as a sequence of bit planes, wherein the most significant bits of said values form a most significant bit plane, and the respective less significant bits of said values form respective less significant bit planes; creating, for each bit plane, a partition of said bit plane according to one out of a plurality of methods and patterns selected to create such partition with bit plane coding adapted to bit plane content that matches one selected from the group consisting of natural images and graphic content, further in which a different zoning strategy is used for natural images than for graphic content, such that the created partition encloses all set bits; and transmitting to said bitstream, for each created partition, (i) an identifier identifying the method and pattern selected to create the partition, (ii) parameters of the selected method and pattern, and (iii) data representing bits of said created partition.