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DS-2TD2xxx-xxxx/xx Thermal and Optical Bi-Spectrum Network Camera User Manual
UM DS-2TD2xx-xxxx/xx Thermal 072020NA 24
5.3.2 Calibrate Manually
1. Go to Configuration → VCA → Camera Calibration.
2. Check Manual Calibration.
3. Click Fig 1. Click and drag the vertical line until it fits the target.
4. Enter the actual length of the calibration line.
5. Repeat steps above to set Fig 2, Fig 3, and Fig 4.
Draw a calibration line in each figure, and the four calibration lines should be evenly
distributed in the same horizontal plane from left to right.
In the four figures, the calibrated object doesn’t need to be the same. Select a proper object in each
figure.
6. (Optional): Click to delete the calibration line.
7. Click Save.
CAUTION: Separate four vertical lines in the optical-axis direction at the close site, middle, and far
site respectively.
Separate four vertical lines at the left, middle, and right of the image respectively.
If manual calibration’s result is incorrect, select another target to recalibrate.
After manual calibration, see Verify the Calibration Result to verify if the calibration is
successful.
Result: After calibration, the camera height and angle will be shown in live view.
5.3.3 Verify the Calibration Result
This function can verify if the calibrated value is consistent with the actual value.
1. Click .
2. Click , and drag a vertical line in the view.
3. Move the line to the target, then click to calculate the length. Compare the calculated line length to
the actual length to verify the calibration settings.
4. Click to exit.
Verify not only the person, but also other objects appearing in the view such as car,
street lamp, etc.
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