Title:
PULMONARY NODULE DETECTION USING MULTIPLE-TEMPLATES MATCHING
Document Type and Number:
WIPO Patent Application WO2002043562
Kind Code:
A3
Abstract:
A determination as to whether a candidate abnormality in a medical digital image is an actual abnormality is made by obtaining a medical digital image including a candidate abnormality (31); obtaining plural first templates (40) and plural second templates (50) respectively corresponding to predetermined abnormalities and predetermined non-abnormalities; comparing the candidate abnormality with the obtained first and second templates to derive cross-correlation values between the candidate abnormality and each of the obtained first and second templates; determining the largest cross-correlation value generated by this comparison (60) and determining the candidate abnormality to be an actual abnormality when the largest cross-correlation value is produced by comparing the candidate abnormality with a first template and determining the candidate abnormality to be a non-abnormality when the largest cross-correlation value is produced by comparing the candidate abnormality with a second template. An actual abnormality is similarly classified as malignant or benign based on further cross-correlation values obtained by comparisons with additional templates corresponding to malignant and benign abnormalities.
Inventors:
LI QIANG
KATSURAGAWA SHIGEHIKO
DOI KUNIO
KATSURAGAWA SHIGEHIKO
DOI KUNIO
Application Number:
PCT/US2001/043146
Publication Date:
January 08, 2004
Filing Date:
November 21, 2001
Export Citation:
Assignee:
UNIV CHICAGO (US)
International Classes:
G01R33/32; A61B5/00; A61B5/055; A61B6/00; A61B6/03; A61B8/00; G06T1/00; G06T7/00; (IPC1-7): G06K9/00
Foreign References:
| US6026174A | 2000-02-15 | |||
| US5233519A | 1993-08-03 | |||
| US4802231A | 1989-01-31 |
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