Patent ID: 6266414
Filing Date: 2001-07-24
Classification: G06T

Abstract:
A method of creating a wavelet decomposition of a collection of data values including the steps of:(a) performing an initial decomposition of the data values into a series of components having low frequency components, high frequency components and components having a mixture of high and low frequencies;(b) determining a first number of coefficients of each of said components having a magnitude exceeding a predetermined component threshold;(c) creating a decomposition of each of said components into a series of sub components having low frequency sub-components, high frequency sub-components and sub-components having a mixture of high and low frequencies;(d) determining a second number of coefficients of each of said sub-components having a magnitude exceeding a predetermined sub-component threshold;(e) utilizing said first number and said second number to determine if said component should be decomposed into sub-components; and(f) where said decomposition proceeds, applying said steps (a) to (e) to each of the sub-components to a predetermined level of decomposition.