Two-port multispectral imaging system for contaminant detection on poultry carcasses

Michio Kise; Bosoon Park; Kurt C. Lawrence; Robert W. Windham

doi:10.1117/12.686154

23 October 2006 Two-port multispectral imaging system for contaminant detection on poultry carcasses

Michio Kise, Bosoon Park, Kurt C. Lawrence, Robert W. Windham

Proceedings Volume 6381, Optics for Natural Resources, Agriculture, and Foods; 63810X (2006) https://doi.org/10.1117/12.686154
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

The objective of this research is to design and fabricate a compact, cost effective multispectral instrument and to collect and analyze spectra for real-time contaminant detection for poultry processing plants. It was revealed by our previous research that the fecal contamination on the surface of the poultry carcass could be detected by sensing the spectral reflectance of the carcass surface in two specific wavelengths, namely 517 nm and 565 nm. The prototype system developed in this research consists of a multispectral imaging system, illumination system and handheld PC. To develop the system cost-effectively, all components are selected from off-the-shelf products and manually assembled. The multispectral imaging sensor developed in this research is a two-port imaging system that consists of two identical monochrome cameras, optical system and two narrow bandpass filters whose center of the wavelength are 520 and 560 nm, respectively. A spectral reflectance from a chicken carcass is collected and split in two directions by an optical system including a beamsplitter and lenses, and then two identical collimated lights are filtered by the narrow bandpass filters and delivered to the cameras. Lens distortions and geometric misalignment of the two cameras are mathematically compensated to register two images perfectly. The prototype system is tested in the real environment and shows that it can effectively detect feces and ingesta on the surface of poultry carcasses.

Citation Download Citation

Michio Kise, Bosoon Park, Kurt C. Lawrence, and Robert W. Windham "Two-port multispectral imaging system for contaminant detection on poultry carcasses", Proc. SPIE 6381, Optics for Natural Resources, Agriculture, and Foods, 63810X (23 October 2006); https://doi.org/10.1117/12.686154

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KEYWORDS

Imaging systems

Cameras

Multispectral imaging

Contamination

Bandpass filters

Detection and tracking algorithms

Forward error correction

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