23 Jul 2019
fish bone detection blocks

Fish Bone Detection in Frozen at Sea Blocks

Fish bone detection in different fish products such as fish fillets or bits& pieces is currently very demanded by the market. Producers and processors in the fish industry are increasingly turning towards technological solutions that will contribute to the automation of their production lines, improve productivity and quality of their products. Out of all inspection systems on the market, only an X-ray system can help identify bones inside fish products. Many processors wonder if an X-ray system can find bones in frozen fish just as well as it can do it in fresh fish. The answer is yes! 

fish bone

Fishing industry is complex, as there are various  processing methods that require special solutions. This industry is getting more and  more global and dynamic, and fish processing vessels are travelling increasingly longer distances. This had an impact on the logistics of catching, preserving and transporting fish. Frozen at sea fish can be processed as large frozen fish blocks or Individual Quick Freezing (IQF)  fish. It is generally challenging to detect fish bones, even in IQF fish. Standard X-ray systems can do that to a certain extent, but this type of task requires high sensitivity and high definition. Detecting bones in fish blocks gets extremely challenging since it involves intertwined fish fillets overlapping and frozen, this making it impossible for a standard systems to detect any bones at all.

Innospexion has recently developed a high sensitivity, high definition  X-ray inspection system that has the capacity of inspecting large fish blocks, in this way solving a key problem for fish processors: saving time by scanning entire fish blocks and improving efficiency. Most importantly, it gives them the opportunity to analyze the amount of bones in each block and classify their product in different categories of quality, according to the results of the X-ray inspection.

fish bone

The solution is based on a low-energy X-ray technology with a detection level down to the pixel size of 0.1 mm, and with the highest sensitivity (i.e., ability to discriminate between different compositions – bone and tissue, and their quantitative distribution, inside the fish block). InnospeXion has tailored this technology to facilitate a wide conveyor inspection capability and an X-ray source emission characteristic that matches the requirement to provide a high quality X-ray image of even tall and thick packaged items and products. At the same time, the system is capable of measuring mass and check for contamination with foreign materials such as metal, rubber, sand, stones, glass. It can also asses missing items and any irregularities with the set packaging standard. The equipment can either be implemented on the fish processing vessel and perform the scanning and classification on the spot, or at the vessel’s discharge point.

Interested in finding out more information about our low-energy X-ray systems for fish bone detection?