Dahua IPC-HFW2449S-S-IL Dahua Network Camera Web 5.0 Operation Manual V1.0.7

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Applicable Scene

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Medium or distant view with installation height of more than three meters. Scenes with parallel

view or ceiling-mounted are not supported.

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Calibrate horizontal plane, not vertical walls or sloping surfaces.

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This function is not applicable to scenes with distorted view, such as the distorted views

captured by super wide-angle or sheye camera.

Notes

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Calibration Drawing

Calibration area: The calibration area drawn should be on one horizontal plane.

Vertical ruler: The bottom of three vertical rulers should be on the same horizontal plane.

Select three reference objects with xed height in triangular distribution as vertical rulers,

such as vehicle parked at roadside or road lamp poles. Arrange three persons to draw at each

of the three positions in the monitoring scene.

Horizontal ruler: Select reference object with known length on the ground, such as sign on

the road, or use a tape to measure the actual length.

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Calibration Verication

After setting the ruler, draw a straight line on the image, check the estimated value of the

straight line, and then compare this value with the value measured in the actual scene to verify

calibration accuracy. In case of major dierence between the estimated value and the actual

one, ne-tune or reset parameters until the error requirement is met.

Procedure

1. Select AI > Smart Plan.

2. Click

next to IVS to enable IVS of the corresponding channel, and then click Next.

3. Click the Global Cong tab.

Figure 8-21 Global conguration of IVS

4. Set calibration area and ruler.

a. Click

and draw a calibration area in the image, and right-click to nish the drawing.

b. Click the ruler icon to draw one horizontal ruler and three vertical rulers in the calibration

area.

Operation Manual

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Dahua IPC-HFW2449S-S-IL 4MP Smart Dual Light Fixed-focal Bullet WizSense Network Camera