Deconvolution Techniques For Digital Longitudinal Tomography

Donald F Specht; J R Roehrig

doi:10.1117/12.939348

15 June 1984 Deconvolution Techniques For Digital Longitudinal Tomography

Donald F Specht, J R Roehrig

Proceedings Volume 0454, Application of Optical Instrumentation in Medicine XII; (1984) https://doi.org/10.1117/12.939348
Event: Application of Optical Instrumentation in Medicine XII, 1984, San Diego, United States

Abstract

In the previous paper we presented clinical results from a digital tomosynthesis x-ray machine which can produce a tomographic slice through the human body in a plane parallel to the sensitive surface of the image intensifier. It stores as raw data separate 512 by 512 pixel images taken from 28 discrete angles. For very large image matrices and faster acquisition times it becomes necessary to acquire images continuously as the x-ray source is moved. This results in images which are convolved with a replica of the source motion, and so deconvolution techniques are required to access the underlying image information. This paper discusses how this can be achieved and describes the results of our first steps towards this goal. It is shown that, although the deconvolution problem is three-dimensional, it can be reduced to an independent two-dimensional computation for each tomographic level of interest. It is also suggested that similar techniques could be used to reduce clutter from unwanted planes after synthesizing images from multiple discrete angles.

Citation Download Citation

Donald F Specht and J R Roehrig "Deconvolution Techniques For Digital Longitudinal Tomography", Proc. SPIE 0454, Application of Optical Instrumentation in Medicine XII, (15 June 1984); https://doi.org/10.1117/12.939348

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