Ganz Security ZN1A-2D6DTMZ71 GXi Series VCA Interface Manual - Page 46

Advanced Calibration Parameters, Vertical Field of View, camera it can be entered directly. If

Page 46 highlights

Ganz GXi Series VCA Interface Manual V3.05.31.18 Advanced Calibration Parameters The advanced calibration parameters allow the ground plane to be panned and rolled without affecting the camera calibration parameters. This can be useful to visualize the calibration setup if the scene has pan or roll with respect to the camera. Note that the pan and roll advanced parameters only affect the orientation of the 3D ground plane so that it can be more conveniently aligned with the video scene and does not actually affect the calibration parameters. To use the advanced parameters, click on the advanced parameters button. Drag the pan and roll slider controls to change the pan and roll of the ground plane. Vertical Field of View The vertical field of view is required when calibrating a camera. If you know the vertical field of view of the camera it can be entered directly. If, however, you don't know the vertical field of view, it can be determined from the following table, given the vertical image dimension and its focal length: If you are unable to determine the vertical field of view for your camera from the above table, leave the field of view at its default setting, 40°. 05-2018-A 45 | P a g e

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05-2018-A
Ganz GXi Series
VCA Interface Manual V3.05.31.18
45 |
P ag e
Advanced Calibration Parameters
The advanced calibration parameters allow the ground plane to be panned and rolled without affecting
the camera calibration parameters. This can be useful to visualize the calibration setup if the scene has
pan or roll with respect to the camera.
Note that the pan and roll advanced parameters only affect the orientation of the 3D ground plane so that
it can be more conveniently aligned with the video scene and does not actually affect the calibration
parameters.
To use the advanced parameters, click on the advanced parameters button. Drag the pan and roll slider
controls to change the pan and roll of the ground plane.
Vertical Field of View
The vertical field of view is required when calibrating a camera. If you know the vertical field of view of the
camera it can be entered directly. If, however, you don't know the vertical field of view, it can be
determined from the following table, given the vertical image dimension and its focal length:
If you are unable to determine the vertical field of view for your camera from the above table, leave the
field of view at its default setting, 40°.