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Proceedings Paper

Analysis of reflectance spectra from hyperspectral images of poultry carcasses for fecal and ingesta detection
Author(s): William R. Windham; Kurt C. Lawrence; Bosoon Park; Doug P. Smith; Gavin Poole
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Paper Abstract

Identification and separation of poultry carcasses contaminated by feces and/or crop ingesta are very important to protect the consumer from a potential source of food poisoning. A transportable hyperspectral imaging system was developed to detect fecal and ingesta contamination on the surface of poultry carcasses. Detection algorithms used with the imaging system were developed from visible/near infrared monochromator spectra and with contaminates from birds fed a corn/soybean meal diet. The objectives of this study were to investigate using regions of interest reflectance spectra from hyperspectral images to determine optimal wavelengths for fecal detection algorithms from images of birds fed corn, wheat and milo diets. Spectral and spatial data between 400 and 900 nm with a 1.0 nm spectral resolution were acquired from uncontaminated and fecal and ingesta contaminated poultry carcasses. Regions of interest (ROIs) were defined for fecal and ingesta contaminated and uncontaminated skin (i.e. breast, thigh, and wing). Average reflectance spectra of the ROIs were extracted for analysis. Reflectance spectra of contaminants and uncontaminated skin differed. Spectral data pre-processing treatments with a single-term, linear regression program to select wavelengths for optimum calibration coefficients to detect contamination were developed. Fecal and ingesta detection models, specifically a quotient of 2 and/or 3-wavelengths was 100% successful in classification of contaminates.

Paper Details

Date Published: 8 November 2002
PDF: 8 pages
Proc. SPIE 4816, Imaging Spectrometry VIII, (8 November 2002); doi: 10.1117/12.451653
Show Author Affiliations
William R. Windham, U.S. Dept. of Agriculture (United States)
Kurt C. Lawrence, U.S. Dept. of Agriculture (United States)
Bosoon Park, U.S. Dept. of Agriculture (United States)
Doug P. Smith, U.S. Dept. of Agriculture (United States)
Gavin Poole, U.S. Dept. of Agriculture (United States)

Published in SPIE Proceedings Vol. 4816:
Imaging Spectrometry VIII
Sylvia S. Shen, Editor(s)

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