| 摘要 |
<p>A fish sortring apparatus comprising a conveyor belt (1) for carrying one or more rows of fish parallel to its direction of travel, a means (4) for illuminating the fish, a colour video camera (3), a video memory having a number of storage areas connected to the video camera (3), a means for storing the camera derived image values of a fish from the one or more rows in a storage area of the memory, a means for determining edge values of the image and storing them, a means for using the stored edge values to generate shape descriptors the values of which are stored and compared with those already in the memory or the logic of a computer processor (10) associated therewith, and a means for determining the colour and/or light intensity of predetermined areas within the image periphery and storing and comparing values therefor with those stored in the memory. The descriptors are subject to descriminant analysis whereby a signal is generated corresponding to the score derived from the analysis such that fish on the conveyor are deflected into a desired reception area.</p> |
