To main content

A Simple Method for Weight Estimation of Whole Herring (Clupea harengus) Using Planar X-Ray Imaging

Abstract

Fish weight is one of the key parameters used in commercial sorting of fresh fish. The capability of on-line and accurate estimation of the weight of each individual fish has a direct impact on profitability for the fish processors. Planar X-ray images of whole herring (n = 16) were taken using a commercial medical X-ray apparatus. The integral intensity of all pixels in each image was calculated and correlated with the weight of the respective fish producing a linear relationship with a high correlation factor (R2 = 0.992) and a calculated mean prediction error of 2.5%. Planar X-ray imaging combined with simple image processing was successfully used to predict weight of whole herring. The technique has a potential to be used industrially for on-line weight estimation in sorting/grading systems.

Category

Academic article

Language

English

Author(s)

Affiliation

  • SINTEF Ocean / Fisheries and New Biomarine Industry

Year

2011

Published in

Journal of Food Science

ISSN

0022-1147

Volume

76

Issue

3

Page(s)

E328 - E331

View this publication at Cristin