FPGA-based acceleration of mutual information calculation for real-time 3D image registration

Carlos R Castro-Pareja; Jogikal M. Jagadeesh; Raj Shekhar

doi:10.1117/12.525412

18 May 2004 FPGA-based acceleration of mutual information calculation for real-time 3D image registration

Carlos R Castro-Pareja, Jogikal M. Jagadeesh, Raj Shekhar

Author Affiliations +

Proceedings Volume 5297, Real-Time Imaging VIII; (2004) https://doi.org/10.1117/12.525412
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

Real-time image registration is potentially an enabling technology for the effective and efficient use of many image-guided diagnostic and treatment procedures relying on multimodality image fusion or serial image comparison. Mutual information is currently the best known image similarity measure for multimodality image registration. Mutual information calculation is a memory-intensive task that does not benefit from cache-based memory architecture in standard software implementations (i.e., the calculation incurs a large number of cache misses). Previous attempts to perform image registration in real time focused on parallel supercomputer implementations, which achieved real-time performance using large, expensive supercomputers that are simply impractical for deployment in a hospital. We have developed a custom hardware architecture that, in a single-module PC-based implementation, achieves registration speeds comparable to those of a 64-processor parallel supercomputer. The single-module speedup results from using parallel memory access and parallel calculation pipelines. The total speedup can be increased by using several modules in parallel. The architecture is designed for linear, mutual information-based registration and can be extended to elastic (nonlinear) registration.

Citation Download Citation

Carlos R Castro-Pareja, Jogikal M. Jagadeesh, and Raj Shekhar "FPGA-based acceleration of mutual information calculation for real-time 3D image registration", Proc. SPIE 5297, Real-Time Imaging VIII, (18 May 2004); https://doi.org/10.1117/12.525412

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