Abstract
Currently, various technical devices for cleaning and sorting grain material are being developed intensively, which use new innovative technical vision devices. The use of technical vision devices makes it possible to more effectively separate the main grain from various impurities, including difficult-to-separate impurities. The development of such technical devices largely depends on the calibration of the digital vision system, and this affects the correctness and accuracy of reading the main particle sizes of grain material. Knowing the location of the intersection of the surface under study with the optical line of the camera’s photo lens, it is possible to configure the camera. To set up the technical vision system, it is necessary to determine the external and internal technical characteristics of digital cameras. We have proposed a system for changing the focal position of the camera’s photo lens to determine the intersection of the optical axis of the camera’s lenses with the working surface of the device.
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