Patent ID: 8260066
Filing Date: 2012-09-04
Classification: G06T,H04N

Abstract:
1. A method of compressing an image block of multiple image elements having a respective feature vector representing a feature associated with said image elements, said method comprising the steps of: defining a bit resolution for an interval codeword based on at least a portion of vector components of feature vectors; calculating a bit resolution for a base codeword as a difference between a predefined maximum resolution value and said bit resolution defined for said interval codeword; determining said base codeword as a representation of a base value based on at least a portion of said vector components; determining said interval codeword as a representation of an interval encompassing multiple component values relative said base value based on at least a portion of said vector components; and determining an index sequence indicative of, for each image element of said multiple image elements, a component value selected from said multiple component values.