Reconstruction of Fish Bones through Stereoscopic X-Ray Tomography

Abstract

Fish bone removal is, for the purposes of food safety, a relevant concern for the fishing industry. The process of filleting is traditionally a manual process, although fully automatic solutions have been brought to market over time. Some methods successfully use X-ray for accurately determining the locations of bones. It has thus far not been attempted to reconstruct fish bones in three dimensions. This work therefore aims to answer the question to which degree it is possible to re- construct fish bones in three dimensions from a pair of stereoscopic X-ray line scan images for the purpose of industrial fish cutting. A mathematical abstrac- tion of the scanner is created, and used to accurately reconstruct fish bones in three dimensions. Moreover, a separate method for addressing a range of issues related to noise is created. The results of these methods yield the conclusion that a method can be created which addresses the accuracy and noise requirements of an industrial context.