Marginal shape deep learning: applications to pediatric lung field segmentation

Awais Mansoor; Juan J. Cerrolaza; Geovany Perez; Elijah Biggs; Gustavo Nino; Marius George Linguraru

doi:10.1117/12.2254412

24 February 2017 Marginal shape deep learning: applications to pediatric lung field segmentation

Awais Mansoor, Juan J. Cerrolaza, Geovany Perez, Elijah Biggs, Gustavo Nino, Marius George Linguraru

Proceedings Volume 10133, Medical Imaging 2017: Image Processing; 1013304 (2017) https://doi.org/10.1117/12.2254412
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

Representation learning through deep learning (DL) architecture has shown tremendous potential for identification, local- ization, and texture classification in various medical imaging modalities. However, DL applications to segmentation of objects especially to deformable objects are rather limited and mostly restricted to pixel classification. In this work, we propose marginal shape deep learning (MaShDL), a framework that extends the application of DL to deformable shape segmentation by using deep classifiers to estimate the shape parameters. MaShDL combines the strength of statistical shape models with the automated feature learning architecture of DL. Unlike the iterative shape parameters estimation approach of classical shape models that often leads to a local minima, the proposed framework is robust to local minima optimization and illumination changes. Furthermore, since the direct application of DL framework to a multi-parameter estimation problem results in a very high complexity, our framework provides an excellent run-time performance solution by independently learning shape parameter classifiers in marginal eigenspaces in the decreasing order of variation. We evaluated MaShDL for segmenting the lung field from 314 normal and abnormal pediatric chest radiographs and obtained a mean Dice similarity coefficient of 0:927 using only the four highest modes of variation (compared to 0:888 with classical ASM1 (p-value=0:01) using same configuration). To the best of our knowledge this is the first demonstration of using DL framework for parametrized shape learning for the delineation of deformable objects.

Conference Presentation

Citation Download Citation

Awais Mansoor, Juan J. Cerrolaza, Geovany Perez, Elijah Biggs, Gustavo Nino, and Marius George Linguraru "Marginal shape deep learning: applications to pediatric lung field segmentation", Proc. SPIE 10133, Medical Imaging 2017: Image Processing, 1013304 (24 February 2017); https://doi.org/10.1117/12.2254412

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