Effects of image resolution and segmentation method on automated mammographic mass shape classification

Lori Mann Bruce; Maria Kallergi

doi:10.1117/12.348654

21 May 1999 Effects of image resolution and segmentation method on automated mammographic mass shape classification

Lori Mann Bruce, Maria Kallergi

Proceedings Volume 3661, Medical Imaging 1999: Image Processing; (1999) https://doi.org/10.1117/12.348654
Event: Medical Imaging '99, 1999, San Diego, CA, United States

Abstract

This article investigates the effects of resolution on the automated segmentation and classification of mammographic masses. A set of 39 mammographic images containing 40 masses are digitized at two resolutions: 220 micrometer and 8 bits per pixel and 180 micrometer and 16 bits per pixel. An expert mammographer classified the shape of all 40 masses as round, lobular, or irregular, and manually segmented the masses from the lower resolution images. The masses in both sets are automatically segmented with a Markov Random Field-based method. Two groups of shape features are extracted from the segmented masses in each set of images: (1) compactness, radial distance mean, standard deviation, entropy, zero- crossing count, and roughness index, and (2) wavelet-based scalar-energy features. Linear discriminant analysis and a minimum Euclidean distance classifier are used to automatically separate the mass shapes into the three classes determined by the expert. The effects of the resolution and method of segmentation on the classification process are analyzed for both groups of shape features.

Citation Download Citation

Lori Mann Bruce and Maria Kallergi "Effects of image resolution and segmentation method on automated mammographic mass shape classification", Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); https://doi.org/10.1117/12.348654

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