Left/right determination system for arm part of pig carcass

摘要

An apparatus is disclosed for left/right determination of the arm part of a pig carcass before it is deboned. A plurality of clampers move around on an endless track. At a suspension station, a work is suspended from each clamper. There are left/right and front/back determination stations where it is determined whether a left-side or right side, and a front-side portion or back-side portion is facing a side irradiated by X-rays. Based on results of the determinations, posture of the work is corrected by a clamper rotating device. At an X-ray imaging station, it is controlled so that the front-side portion of the work faces the side irradiated by the X-rays and a longer side faces a movement direction of the endless track. An X-ray image of the work is obtained to determine a target coordinate of a bone-part surface required for incision making and deboning processes.

主权项

1. A left/right determination system for an arm part of a pig carcass, comprising:
a clamper including a slit which has an opening oriented in a horizontal direction so that a wrist part of a pig carcass is insertable into or removable from the slit, the clamper being configured to be movable along a track in a state where the arm part of the pig carcass is suspended from the clamper; a light source configured to radiate white visible light on the arm part suspended from the clamper; a color imaging device configured to capture an image of the arm part being irradiated with the white visible light from an inclined horizontal direction which is inclined relative to the horizontal direction in which the opening of the slit is oriented; and a left/right determination device configured to determine whether the arm part is of a left arm or a right arm based on an image data of the arm part captured by the color imaging device, wherein the left/right determination device comprises:
an output extracting part configured to extract red image signals which correspond to a red wavelength range from the image data;a first binarizing part configured to binarize the red image signals extracted by the output extracting part; anda left/right determination part configured to determine whether the arm part is of a left arm or a right arm based on the red image signals binarized by the first binarizing part.