Novel hyperspectral prediction method and apparatus

Gabor J. Kemeny, Natalie A. Crothers, Gard A. Groth, Kathy A. Speck, Ralf Marbach

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


Both the power and the challenge of hyperspectral technologies is the very large amount of data produced by spectral cameras. While off-line methodologies allow the collection of gigabytes of data, extended data analysis sessions are required to convert the data into useful information. In contrast, real-time monitoring, such as on-line process control, requires that compression of spectral data and analysis occur at a sustained full camera data rate. Efficient, high-speed practical methods for calibration and prediction are therefore sought to optimize the value of hyperspectral imaging. A novel method of matched filtering known as science based multivariate calibration (SBC) was developed for hyperspectral calibration. Classical (MLR) and inverse (PLS, PCR) methods are combined by spectroscopically measuring the spectral "signal" and by statistically estimating the spectral "noise." The accuracy of the inverse model is thus combined with the easy interpretability of the classical model. The SBC method is optimized for hyperspectral data in the Hyper-CalTM software used for the present work. The prediction algorithms can then be downloaded into a dedicated FPGA based High-Speed Prediction EngineTM module. Spectral pretreatments and calibration coefficients are stored on interchangeable SD memory cards, and predicted compositions are produced on a USB interface at real-time camera output rates. Applications include minerals, pharmaceuticals, food processing and remote sensing.
Original languageEnglish
Title of host publicationNext-Generation Spectroscopic Technologies II
EditorsMark A. Druy, Christopher D. Brown, Richard A. Crocombe
PublisherInternational Society for Optics and Photonics SPIE
ISBN (Print)978-0-8194-7585-5
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
EventNext-Generation Spectroscopic Technologies II - Orlando, United States
Duration: 13 Apr 200917 Apr 2009

Publication series

SeriesProceedings of SPIE


ConferenceNext-Generation Spectroscopic Technologies II
Country/TerritoryUnited States


  • hyperspectral
  • spectral cameras
  • real-time monitoring
  • spectroscopic methods


Dive into the research topics of 'Novel hyperspectral prediction method and apparatus'. Together they form a unique fingerprint.

Cite this