MULTISPECTRAL IMAGING SYSTEM FOR FECAL AND INGESTA DETECTION ON POULTRY CARCASSES

A multispectral imaging system, including a common aperture camera with three optical trim filters (515.4, 566.4 and 631 nm), which were selected by visible/near-infrared NIR spectroscopy and validated by a hyperspectral imaging system, was developed for a real-time, on-line poultry inspection application. The algorithm developed by a hyperspectral imaging system was employed for multispectral image analysis to validate the accuracy of fecal and ingesta detection in real-time poultry processing. A multispectral imaging system could be used effectively for detecting feces (from duodenum, ceca, and colon) and ingesta on the surface of poultry carcasses with the processing time of approximately 251 ms or 3.99 frames/s. The multispectral imaging system developed in this research can be used for real-time, on-line detection of fecal and ingesta contaminant on poultry carcasses. The overall accuracy to identify fecal and ingesta contaminants was 96.8% and the prediction accuracy to identify each contaminant were 92.4% for duodenum and 98% for ceca, colon, and ingesta with moderate false positives.

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