Object reconstruction from thermal and shot noises corrupted block-based compressive ultra-low-light-level imaging measurements

Sen Niu, Jun Ke*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, block-based compressive ultra low-light-level imaging (BCU-imaging) is studied. Objects are divided into blocks. Features, or linear combinations of block pixels, instead of pixels, are measured for each block to improve system measurement SNR and thus object reconstructions. Thermal noise and shot noise are discussed for object reconstruction. The former is modeled as Gaussian noise. The latter is modeled as Poisson noise. Linear Wiener operator and linearized iterative Bregman algorithm are used to reconstruct objects from measurements corrupted by thermal noise. SPIRAL algorithm is used to reconstruct object from measurements with shot noise. Linear Wiener operator is also studied for measurements with shot noise, because Poisson noise is similar to Gaussian noise at large signal level and feature values are large enough to make this assumption feasible. Root mean square error (RMSE) is used to quantify system reconstruction quality.

Original languageEnglish
Title of host publicationOptical Measurement Technology and Instrumentation
EditorsSen Han, Jiubin Tan
PublisherSPIE
ISBN (Electronic)9781510607682
DOIs
Publication statusPublished - 2016
EventInternational Symposium on Optical Measurement Technology and Instrumentation - Beijing, China
Duration: 9 May 201611 May 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10155
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Symposium on Optical Measurement Technology and Instrumentation
Country/TerritoryChina
CityBeijing
Period9/05/1611/05/16

Keywords

  • Block-based compressive imaging
  • Bregman
  • Low-light-level imaging
  • SPIRAL
  • shot noise
  • thermal noise

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