Dimension Measurement Using Coordinate System
Dimension Measurement Using Coordinate System
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To measure the dimensions of an imaged object, a region of interest (ROI) is used to define the measurement location. This chapter explains the measurement of the dimension using Vision Assistant express. In most cases, the object under inspection may shift and/or rotate in the viewing field of the video image. If a static ROI does not incorporate the entire object under investigation, the dimension may not be measured. For this case, the ROI location will need to be shifted and rotated according to the objects location. To enable this dynamic ROI location, a reference coordinate system can be used to define the measurement area around the object relative to the reference location. To locate a reference coordinate system relative to the object, pattern matching or edge detection can be used. The ROI defined with respect to the reference coordinate system is then used to measure the dimension.
Document information
Dimension Measurement Using Coordinate System
2014-12-08
14 pages
Article/Chapter (Book)
Electronic Resource
English
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