Title:
ITERATIVE WARPING FOR TEMPORAL SUBTRACTION OF RADIOGRAPHS
Document Type and Number:
WIPO Patent Application WO1999054705
Kind Code:
A3
Abstract:
A method of computerized analysis of temporally sequential digital images, including (a) determining first shift values between pixels of a first digital image and corresponding pixels of a second digital image (440); (b) warping the second digital image based on the first shift values to obtain a first warped image in which spatial locations of pixels are varied in relation to the first shift values (450); (c) determining second shift values between pixels of the first digital image and pixels of the first warped image; and (d) warping the first warped image based on the second shift values to obtain a second warped image (470). Iterative warping enhances image for the first subtraction of the first digital image and the final warped image to produce a difference image (480).
Inventors:
ISHIDA TAKAYUKI
KATSURAGAWA SHIGEHIKO
DOI KUNIO
KATSURAGAWA SHIGEHIKO
DOI KUNIO
Application Number:
PCT/US1999/004290
Publication Date:
December 27, 2002
Filing Date:
April 02, 1999
Export Citation:
Assignee:
ARCH DEV CORP (US)
International Classes:
A61B6/00; G06K9/00; G06K9/80; G06T1/00; G06T3/00; G06T5/40; G06T7/00; G06T7/20; H04N5/325; G01N; (IPC1-7): G06K9/00
Foreign References:
| US5359513A | 1994-10-25 | |||
| US5623560A | 1997-04-22 | |||
| US5629988A | 1997-05-13 |
Other References:
MOSHFEGHI M.: "ELASTIC MATCHING OF MULTIMODALITY MEDICAL IMAGES.", CVGIP GRAPHICAL MODELS AND IMAGE PROCESSING., ACADEMIC PRESS, DULUTH, MA., US, vol. 53., no. 03., 1 May 1991 (1991-05-01), US, pages 271 - 282., XP002922620, ISSN: 1077-3169, DOI: 10.1016/1049-9652(91)90049-P
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