Analysis of Visual Quality Attributes of White Shrimp by Machine Vision

摘要

An important component of shrimp quality evaluation is determination of visual attributes by trained inspectors. This is subjective, time con- suming, and difficult to quantify. An automated device was developed for repeatable, objective measurement of visual quality of shrimp. The device measured the count, uniformity ratio, color, melanosis, and de- tected foreign objects. Shrimp area viewed by a camera was used to estimate weight after calibration, and count and uniformity ratio was calculated. The system quantified color changes in white shrimp during iced storage. Melanosis was quantified and correlated with the grading of a trained inspector. The method objectively measured visual quality attributes of white shrimp in less than I min per sample.