Abstract

A one-dimensional stochastic model is proposed to analyze the characteristics of quantum noise in flat-panel detectors (FPD) for medical imaging applications. The number of x-ray photons is modeled as a Poisson process, and explicit expressions for the autocorrelation function and noise power spectrum density (NPSD) are obtained in terms of the exposure dose, blur shape in the capture element, and pixel size. The results from the proposed model are validated with numerical simulations, and it is shown that this model can be used for the analysis of the noise properties of the FPD. The influence of these three parameters on the NPSD is then investigated.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Signal-to-noise optimization of medical imaging systems

Ian A. Cunningham and Rodney Shaw
J. Opt. Soc. Am. A 16(3) 621-632 (1999)

Spatial resolution and noise in organic light-emitting diode displays for medical imaging applications

Asumi Yamazaki, Chih-Lei Wu, Wei-Chung Cheng, and Aldo Badano
Opt. Express 21(23) 28111-28133 (2013)

Analysis of image noise due to position errors in laser writers

Peter D. Burns, Majid Rabbani, and Lawrence A. Ray
Appl. Opt. 25(13) 2158-2168 (1986)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (41)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription