|Weight estimation of flatfish by means of structured light and image analysis|
Storbeck, F.; Daan, B. (1991). Weight estimation of flatfish by means of structured light and image analysis. Fish. Res. 11(2): 99-108
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836, more
Body weight; Fish handling; Fish storage; Flatfish fisheries; Marine
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A method is described which estimates the weight of flatfish on board beam trawlers. It is based on real-time image analysis of the contours of laser beam cutting the surface of the fish, at an angle, as seen by a camera perpendicular to a conveyor belt. Essentially, the volume of the fish is determined. Because the weight of fish per unit volume is reasonably constant, the weight of the fish can be computed. It is concluded that the method's error of about 5% is sufficiently accurate for commercial purposes.