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RSI
has developed techniques for recognizing
manufactured parts, configured cameras and lighting systems,
developed high precision calibration software and created algorithms
for locating defects for automated inspection. When inspecting
boards quality recognition algorithms are essential but achieving
the very low false alarm rates necessary in an efficient machine
vision inspection system also requires precise illumination and
exposure control. |
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In automated
inspection systems camera resolution, camera perspectives, pointing
accuracy, lighting colors, evenness, color temperature,
polarization, dynamic range and many other factors have to be
carefully weighed into the design to achieve accuracy and speed
within realistic cost constraints. Boards with parts can be inspected for absence or presence of each
part as well as precision of placement of the parts. |
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