DS-2CD6825G0-C-IVS-User-Manul

Dual-Lens People Counting Camera User Manual
16
Auto Calibration: camera automatically calculates the lens height.
Manual Calibration: lens height should be measured by the users.
Note:
If the level ground area occupies less than 25% of the whole image, use manual
calibration.
• Auto Calibration
i. Select calibration mode as Auto.
ii. Drag the calibration area (the green rectangle in image) to cover a level
area of the ground. You can adjust the size of the green rectangle by
dragging its angles.
Notes:
 The calibration area is recommended to cover a richly-textured
surface with balanced brightness distribution.
 Do not put the calibration area near the edge of the image.
iii. Click Calibration.
The camera calculates the lens height and returns the value, and displays
the red count area and the orange detection line in image.
iv. Check the returned lens height and compare it with the actual lens height
to see if the camera is properly calibrated.
A convenient way is that you check the Display Height checkbox
(People Counting > Advanced), ask a person to go pass the camera, and
check the calculated height of the person displayed in live image. If the
height error is less than 5%, then the auto calibration is considered as a
valid one.
If the auto calibration is considered invalid, repeat above steps again. Or
you can use manual calibration.