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Processing Fish

The processing fish project aims to use robots to remove parasites from fish. Our current approach uses hyperspectral imaging to identify parasites within the fish fillets, followed by a 7-degree-of-freedom Kinova arm and a custom-designed tweezer end effector to remove them. One of the most interesting and fun aspects of this project is that we don't actually know if it's possible. A company contracted my team to figure out whether this is possible because it doesn't currently exist in their industry and is a significant bottleneck. Currently, we are iterating on our end-effector design, improving the accuracy of our computer vision, and developing fish fillet phantoms —silicon approximations of fish flesh —to provide a more consistent workflow. We are hoping to start pulling our first parasites by the start of Christmas break, which will mark the halfway point of this project. If you're fond of fish, keep in mind that the parasites are entirely harmless to ingest and are just removed for cosmetic reasons. That being said, this project has affected the amount of fish I personally eat. 

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Version 1 of a 3D printable tweezer end effector that mounts  directly to the 3rd gen Kenova arm we are using for parasite removal.

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Version 2 of a 3D printed end effector. This version makes production and assembly much easier, as well as easier to adjust the angle of the tweezers relative to the end effector's centerline. 

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On the left, a picture of the most common parasite we expect to be removing from fish fillets. On the right, a picture of our team removing them by hand.

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