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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Image Processing of Laser Structured-Light Based Vision System
verfasst von : Dr. Zhongxue Gan, Dr. Qing Tang
Erschienen in: Visual Sensing and its Applications
Verlag: Springer Berlin Heidelberg
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For laser stripe sensors there are two types of image processing tasks. One is to find locations of the control points in the calibration target. This is usually for the calibration procedure. The other is to find the center position of the laser line, which is used for the reconstruction procedure. For the first task, accuracy of the algorithm is essential. And for the second task, reliability, insensitivity to the ambient light, accuracy as well as speed need to be addressed. In applications associated with reconstructed range images, the registration algorithm is a very powerful tool used in workpiece calibration, localization, and shape inspection, especially for free form surface. In this chapter we will review 2D image processing techniques as well as range image registration algorithms associated with laser stripe sensors and robot vision systems. These techniques are widely used in visual sensing applications as described in Chapter 7.