A Simple Method for Weight Estimation of Whole Herring (Clupea harengus) Using Planar X-Ray Imaging
Article first published online: 6 APR 2011
© 2011 Institute of Food Technologists®
Journal of Food Science
Volume 76, Issue 3, pages E328–E331, April 2011
How to Cite
Veliyulin, E., Misimi, E., Bondø, M., Vebenstad, P. A. and Østvik, S. O. (2011), A Simple Method for Weight Estimation of Whole Herring (Clupea harengus) Using Planar X-Ray Imaging. Journal of Food Science, 76: E328–E331. doi: 10.1111/j.1750-3841.2011.02093.x
- Issue published online: 6 APR 2011
- Article first published online: 6 APR 2011
- MS 20101218 Submitted 10/28/2010, Accepted 1/20/2011.
- weight estimation;
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.