Multiple processing of radiographic images based on a pyramidal image decomposition
First Claim
Patent Images
1. A method of generating more than one differently processed image version originating from a single radiation image, comprising the steps of:
- 1. applying a decomposition transform to said radiation image to decompose it into a multiresolution representation which represents localized image detail at multiple resolution levels,2. storing said multiresolution representation into a memory,3. producing at least two differently processed image versions by applying at least two individual processing cycles to said multi-resolution representation, each processing cycle comprising the steps of;
(i) retrieving said multiresolution representation from said memory,(ii) modifying the multiresolution representation at at least one resolution level by applying a non-linear monotonically increasing odd modifying function with a slope that gradually decreases with increasing argument values to elements of the multiresolution representation that belong to a same resolution level,(iii) obtaining a processed image representation by applying the inverse of said decomposition transform to the modified multiresolution representation,(iv) applying said processed image presentation to a hard copy recorder or to a display device to control generation of density values of a processed image version of said original image.
1 Assignment
0 Petitions
Accused Products
Abstract
Multiple processing of radiographic images based on a pyramidal image decomposition.
A method of multiple processing a digital representation of a radiographic image is disclosed that is based on a pyarmidal decomposition of said image. A pyramidal decomposition is stored and retrieved to be applied to at least two different processing cycles, processed images are obtained by application of a reconstruction algorithm.
-
Citations
16 Claims
-
1. A method of generating more than one differently processed image version originating from a single radiation image, comprising the steps of:
-
1. applying a decomposition transform to said radiation image to decompose it into a multiresolution representation which represents localized image detail at multiple resolution levels, 2. storing said multiresolution representation into a memory, 3. producing at least two differently processed image versions by applying at least two individual processing cycles to said multi-resolution representation, each processing cycle comprising the steps of; (i) retrieving said multiresolution representation from said memory, (ii) modifying the multiresolution representation at at least one resolution level by applying a non-linear monotonically increasing odd modifying function with a slope that gradually decreases with increasing argument values to elements of the multiresolution representation that belong to a same resolution level, (iii) obtaining a processed image representation by applying the inverse of said decomposition transform to the modified multiresolution representation, (iv) applying said processed image presentation to a hard copy recorder or to a display device to control generation of density values of a processed image version of said original image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification