The image of the laser stripe represents a cross-section of the object under inspection. Your application might use this
cross-section data, or you can use a 3D displacement sensor to acquire a series of images while the object moves past
and then combine the height data of each image to generate a synthetic 2D image containing height profile information
in real-world coordinates.
Your Cognex software supports a variety of 3D vision tools for performing tasks such as:
l Generating information about a planar surface
l Generating height or volume calculations
l Analyzing a cross-section of the object
The synthetic image can also be passed to any number of traditional vision tools to perform tasks such as pattern
matching or optical character recognition.
5
Cognex 3D Displacement Sensors
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