Alaysis of image features of histograms of edge gradient for false positive reduction in lung nodule detection in chest radiographs

Xin-Wei Xu; Shigehiko Katsuragawa; Kazuto Ashizawa; Heber MacMahon; Kunio Doi

doi:10.1117/12.310908

24 June 1998 Alaysis of image features of histograms of edge gradient for false positive reduction in lung nodule detection in chest radiographs

Xin-Wei Xu, Shigehiko Katsuragawa, Kazuto Ashizawa, Heber MacMahon, Kunio Doi

Author Affiliations +

Proceedings Volume 3338, Medical Imaging 1998: Image Processing; (1998) https://doi.org/10.1117/12.310908
Event: Medical Imaging '98, 1998, San Diego, CA, United States

Abstract

A computer-aided diagnosis (CAD) scheme could improve radiologists' diagnostic performance in their detection of lung nodules on chest radiographs if the computer output were used as a `second opinion'. The current CAD scheme that we have developed achieved a performance of 70% sensitivity and 1.7 false positives per image for our database. This database consisted of two hundred PA chest radiographs, including 100 normals and 100 abnormals (containing 122 confirmed nodules). Our purpose in this study was to improve our scheme further by incorporating new features derived from analysis of the histogram of radial edge gradients on nodule candidates.

Citation Download Citation

Xin-Wei Xu, Shigehiko Katsuragawa, Kazuto Ashizawa, Heber MacMahon, and Kunio Doi "Alaysis of image features of histograms of edge gradient for false positive reduction in lung nodule detection in chest radiographs", Proc. SPIE 3338, Medical Imaging 1998: Image Processing, (24 June 1998); https://doi.org/10.1117/12.310908

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available