Point target detection in hyper-spectral images

Stanley R. Rotman, Irena Yatskaer

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


The analysis of hyperspectral imagery promises to provide technical solutions to problems in many areas of research; this is particularly true of target acquisition. Exploiting high spectral resolution data contributes greatly to the discrimination power of standard image processing techniques. This additional dimension of information is based on the physical characteristics of the target material under consideration. The present research addresses the problem of the detection of a point target, moving with sub-pixel velocity, from a time sequence of hyperspectral data cubes. The emphasis in this paper will be on the degree of improvement in target detection algorithms that can be expected as a function of the degree of difference between the target and background signatures. Differences obtained between the use of real spectral signatures, compared to synthetic ones, for the noise, background and target end-members, and their implication on the detection results will be discussed. The standard matched filter for target detection is broadened and improved by advanced non-data dependent techniques. In order to estimate algorithm performance, five different tests (detection methods of varying sophistication) were applied to the real hyperspectral data. The results were compared to the synthetic data outcome; conclusions regarding the threshold needed for spectral differences for the target detection to be notably improved are reached. The major focus of the research is a comparative understanding of the target detection results in different scenarios: strongly, partially and lightly cluttered sequences. Using real spectral signatures from the literature highly complicates the target detection task, since, in the real world, spectral mixing and the spectral overlapping of the target and background signatures are significant. To overcome these spectral issues, a thorough analysis is conducted to identify spectral ranges representing the maximum information variance between target and background spectra.

Original languageEnglish
Title of host publication2006 IEEE 24th Convention of Electrical and Electronics Engineers in Israel, IEEEI
PublisherInstitute of Electrical and Electronics Engineers
Number of pages5
ISBN (Print)1424402301, 9781424402304
StatePublished - 1 Jan 2006
Event2006 IEEE 24th Convention of Electrical and Electronics Engineers in Israel, IEEEI - Eilat, Israel
Duration: 15 Nov 200617 Nov 2006

Publication series

NameIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings


Conference2006 IEEE 24th Convention of Electrical and Electronics Engineers in Israel, IEEEI


  • Hyper-spectral target detection
  • Tracking point targets

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials


Dive into the research topics of 'Point target detection in hyper-spectral images'. Together they form a unique fingerprint.

Cite this