Manual

Table Of Contents

DobotVisionStudio User Guide

173

• Matrix Correction Enable: In the conversion relationship generated by N image

calibration, only when moving the calibration horizontally, the coordinates of the upper left corner

of the checkerboard corner of the first image in the image are the image origin by default. When

there is rotation calibration, the default is that the image rotation center is the origin of the physical

coordinate system. If this correspondence does not meet the requirements, the matrix correction

enable can be enabled.

• Input Mode: it includes by point and by coordinate.

• Image Point: enable matrix correction, input image points, correct the position of the

matrix, and transform this image point into a specified physical point.

• Physical Point: enable matrix correction, input physical points, correct the position of the

matrix, and transform specific image point into the physical point.

Running Parameters:

• Camera Movement: If the camera has relative movement, you can enable this parameter.

• Calibration Board Type: Self-developed I type, and self-developed II type. Type I is a

self-developed code occupying four checkerboard positions, and type II is a self-developed code

placed in the white grid of the calibration board.

• Grayscale Contrast: it refers to the min. value of contrast between adjacent black-and-

white squares in a checkerboard image, it is recommended to use default value.

• Median Filter Status: Whether to perform median filtering before corner point extraction.

There are two modes: "Perform Filtering" and "No Filtering". It is recommended to use the default

value.

• Subpixel Window: 2 modes: self-adaptive, and configured value.

Output Results:

• Average Error of Pixel Translation: according to the pixel estimation error when

translation image calculates the matrix, the smaller the error, the more stable the movement of the

mechanism and the more reliable the calibration result.