Maximum-A-Posteriori Estimation of Retinal Oxygen Tension Based on Photon Counting Statistics

Gokhan Gunay, Metin Ertas, Isa Yildirim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The regularization of retinal oxygen tension estimation was previously proposed with an assumption that phosphorescence intensity images are corrupted by additive Gaussian noise. Based on this assumption, a regularized least-squares estimate has been shown to be better than a conventional least-squares estimation. However, this assumption is inconsistent with the acquisition process of phosphorescence intensity images acquired using an intensified charge-coupled device camera. Almost the entire acquisition process is governed by the natural aspects of photons. Therefore, a method based on photon counting statistics is more appropriate. In this study, we propose a regularized oxygen tension estimation method based on photon counting statistics and a phosphorescence lifetime imaging model.

Original languageEnglish
Pages (from-to)2163-2169
Number of pages7
JournalIEEE Transactions on Biomedical Engineering
Volume71
Issue number7
DOIs
Publication statusPublished - 1 Jul 2024

Bibliographical note

Publisher Copyright:
© 1964-2012 IEEE.

Keywords

  • Intensified charge-coupled device camera
  • maximum-a-posterior estimation
  • oxygen tension estimation
  • photon counting statistics
  • poisson noise

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