Detection of Spots on Materials Using the FPGA Circuit

This paper is focused on the detection of spots on fast moving materials. A new detector is proposed for this purpose, which is compiled from several units: a field programmable gate array (FPGA), an analog monochrome line scan camera, an interface between camera/FPGA/PC, an illuminator and a computer. The used FPGA circuit allows that the speed of the camera control is sufficient and that search or service algorithms can be used easily.