Evaluation of discrete sampling on thermal imaging systems

Ji Hui Wang, Jian Ping Cui, Ting Zhu Bai, Wei Qi Jin, Zhi Yun Gao

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

Abstract

Based on the aliasing theory of focal plane array (FPA) thermal imaging systems, aliasing as noise (AAN) method and under-sampling system evaluation model based on information theory (EMIT) were analyzed. The aliasing was treated as one kind of noise and introduced into minimum resolvable temperature difference (MRTD) model, and the integral expressing of aliasing signal (IAS) method was proposed to evaluate the impact of aliasing on the performance of thermal imaging systems. IAS method was proved to be able to describe the impact of aliasing grade on the system performance effectively. The three MRTD models with different aliasing evaluation methods were researched contrastively by MRTD test experiment and target detection probability experiment. The MRTD model with IAS method was proved to evaluate the performance of under-sampling thermal imaging systems effectively, and could be used in the performance prediction of thermal imaging systems. In the future, the precision of IAS method will be researched further.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2013
Subtitle of host publicationInfrared Imaging and Applications
PublisherSPIE
ISBN (Print)9780819497765
DOIs
Publication statusPublished - 2013
Event5th International Symposium on Photoelectronic Detection and Imaging, ISPDI 2013 - Beijing, China
Duration: 25 Jun 201327 Jun 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8907
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference5th International Symposium on Photoelectronic Detection and Imaging, ISPDI 2013
Country/TerritoryChina
CityBeijing
Period25/06/1327/06/13

Keywords

  • FPA thermal imaging systems
  • MRTD
  • aliasing
  • evaluation
  • under-sampling noise

Fingerprint

Dive into the research topics of 'Evaluation of discrete sampling on thermal imaging systems'. Together they form a unique fingerprint.

Cite this