User manual

Small Vision System User Manual 54
5.3 Parameter Classes
svsImageParams
Image frame size and subwindow parameters
svsRectParams
Image rectification parameters
svsDispParams
Image stereo processing (disparity) parameters
Parameter classes contain information about the format or processing characteristics of stereo image
objects. Each stereo image object contains an instance of each of the above classes. Application programs
can read these parameters to check on the state of processing or the size of images, and can set some of the
parameters, either directly or through class member functions.
5.3.1 Class svsImageParams
Frame size and subwindow parameters for stereo images. In general, the only way these parameters
should be changed is through member functions of the appropriate objects, e.g., using
SetSize in the
svsVideoImages class.
5.3.2 Class svsRectParams
Rectification parameters for stereo images. They are used internally by the rectification functions.
Application programs should not change these parameters, and will have few reasons to look at the
parameter values. Rectification parameters are generated initially by the calibration procedure, then
written to and read from parameter files.
5.3.3 Class svsDispParams
Disparity parameters control the operation of stereo processing, by specifying the number of
disparities, whether left/right filtering is on, and so on. Most of these parameters can be modified by
application programs.