Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements

Steven L. Jacques

doi:10.1117/12.469859

10 June 2002 Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements

Steven L. Jacques

Author Affiliations +

Proceedings Volume 4618, Biomedical Optoacoustics III; (2002) https://doi.org/10.1117/12.469859
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

Abstract

An optoacoustic imaging algorithm uses backprojection of the time-resolved velocity potential to map the sources of pressure waves detected by an array of acoustic detectors. The relationship between pressure (P) and velocity potential (vp) is P = -rho*d(vp)/dt, or vp = -Integral(P dt)/rho where rho is density, t is time, and d(vp)/dt is the time derivative of the velocity potential. In a forward calculation, a computer simulation can predict the complex pressure waves arriving at each of an array of detectors due to any arbitrary spatial distribution of initial pressure generation. In an inverse calculation, such computer-simulated experimental measurements are used to spatially map the initial pressure source which in optoacoustic imaging corresponds to the initial distribution of pulsed laser energy deposition. Hence, the performance of the inverse calculation as an image reconstruction algorithm could be tested using ideal computer-simulated data. In this report, the image reconstruction algorithm was systematically tested to specify the expected performance under optimal conditions, to illustrate the source/detector geometries that frustrate image reconstruction, and to assess the impact of measurement noise. Typical reconstruction errors were +/- 20%.

Citation Download Citation

Steven L. Jacques "Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements", Proc. SPIE 4618, Biomedical Optoacoustics III, (10 June 2002); https://doi.org/10.1117/12.469859

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

Reconstruction algorithms

Image restoration

Detection and tracking algorithms

Optical spheres

Acoustics

Computer simulations

Show All Keywords

Keywords/Phrases

Search In:

Publication Years