Generalized algebraic algorithm for scene-based nonuniformity correction

Majeed M. Hayat, Bradley M. Ratliff, J Scott Tyo, Kamil Agi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents an overview of three recently developed scene-based nonuniformity correction techniques, namely, the algebraic scene-based algorithm (ASBA), the extended radiometrically accurate scene-based algorithm (RASBA) and the generalized algebraic scene-based algorithm (GASBA). The ASBA uses pairs of image frames that exhibit one-dimension sub-pixel motion to algebraically extract estimates of bias nonuniformity. The RASBA incorporates arbitrary sub- and super-pixel two-dimensional motion in conjunction with limited perimeter-only absolute calibration to obtain radiometrically accurate estimates of the bias nonuniformity. The RASBA provides the advantage of being able to maintain radiometry in the interior photodetectors without interrupting their operation. The GASBA is a generalized non-radiometric form of the algorithm that uses image pairs with arbitrary two-dimensional motion and encompasses both the ASBA and RASBA algorithms. This generalization is accomplished by initially guaranteeing bias uniformity in the perimeter detectors. This uniformity can be achieved by first applying the ASBA estimates. The generalized algorithm is then able to automatically maintain perimeter uniformity without the need for re-application of the ASBA. Thus, the GASBA is able to operate completely in a non-radiometric mode, alleviating the need for the perimeter calibration system if desired. The generalized algorithm is applied to real infrared imagery obtained from both cooled and uncooled infrared cameras. A hardware implementation of the proposed algorithm will also be discussed along with several ongoing commercial applications of the technology.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsK.M. Iftekharuddin, A.A.S. Awwal
Pages122-136
Number of pages15
Volume5556
DOIs
StatePublished - 2004
Externally publishedYes
EventPhotonic Devices and Algorithms for Computing VI - Denver, CO, United States
Duration: Aug 2 2004Aug 3 2004

Other

OtherPhotonic Devices and Algorithms for Computing VI
CountryUnited States
CityDenver, CO
Period8/2/048/3/04

Fingerprint

nonuniformity
Pixels
pixels
estimates
Calibration
infrared imagery
Infrared radiation
Radiometry
Photodetectors
photometers
hardware

Keywords

  • Calibration
  • Fixed pattern noise
  • Focal plane array
  • Infrared sensors
  • Nonuniformity correction
  • Scene-based NUC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Hayat, M. M., Ratliff, B. M., Tyo, J. S., & Agi, K. (2004). Generalized algebraic algorithm for scene-based nonuniformity correction. In K. M. Iftekharuddin, & A. A. S. Awwal (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5556, pp. 122-136). [14] https://doi.org/10.1117/12.557650

Generalized algebraic algorithm for scene-based nonuniformity correction. / Hayat, Majeed M.; Ratliff, Bradley M.; Tyo, J Scott; Agi, Kamil.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / K.M. Iftekharuddin; A.A.S. Awwal. Vol. 5556 2004. p. 122-136 14.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hayat, MM, Ratliff, BM, Tyo, JS & Agi, K 2004, Generalized algebraic algorithm for scene-based nonuniformity correction. in KM Iftekharuddin & AAS Awwal (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5556, 14, pp. 122-136, Photonic Devices and Algorithms for Computing VI, Denver, CO, United States, 8/2/04. https://doi.org/10.1117/12.557650
Hayat MM, Ratliff BM, Tyo JS, Agi K. Generalized algebraic algorithm for scene-based nonuniformity correction. In Iftekharuddin KM, Awwal AAS, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5556. 2004. p. 122-136. 14 https://doi.org/10.1117/12.557650
Hayat, Majeed M. ; Ratliff, Bradley M. ; Tyo, J Scott ; Agi, Kamil. / Generalized algebraic algorithm for scene-based nonuniformity correction. Proceedings of SPIE - The International Society for Optical Engineering. editor / K.M. Iftekharuddin ; A.A.S. Awwal. Vol. 5556 2004. pp. 122-136
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