Live Video Images Are Unclear

Publication Date:  2015-06-26 Views:  244 Downloads:  0
Issue Description
Applicable Models:
All IPC models.

Symptom:

When you are viewing live video captured by an IPC, the images are unclear.
Handling Process
Step 1 Check whether the IPC shield is clean.
  • If the shield is dirty, clean it.
  • If the shield is clean, go to Step 2.
Step 2 Check whether the working environment of the IPC jitters severely.
  • If yes, install the IPC in another location with no jitter.
  • If no, go to Step 3.
Note:
If the installation location of the IPC jitters severely and affects automatic focusing, install the IPC in a location with no jitter.

Step 3 Check whether the IPC is blocked by some objects or illuminated by bright light.
  • If yes, remove the object or avoid the bright light during live video viewing.
  • If no, go to Step 4.
Step 4 (For eSpace IPC2902-Z18 and eSpace IPC2802-Z18) Check whether there is too much dust in the working environment of the IPC.
  • If there is too much dust in the working environment of the IPC, change the focus mode of the IPC to Push and set the position with better preview effect to the preset position based on the surveillance site requirements.
To set the focus mode to Push, right-click a live video screen, choose Sensor Config from the shortcut menu, select Focus Setting in the PU configuration dialog box, and set Focus mode to Push.

NOTE:
It is recommended that object borders, object edges and corners, or positions with white/black comparison be set to preset positions.
  • If the dust in the working environment of the IPC has little effect, go to Step 5.
Step 5 Reset the IPC's focusing distance.

This topic introduces how to set the focusing distance for PTZ cameras and non-PTZ cameras (dome cameras, box cameras, and bullet cameras). For details about how to set the focusing distance for PTZ cameras, see Setting the PTZ camera focusing distance. For details about how to set the focusing distance for non-PTZ cameras, see Setting the non-PTZ camera focusing distance.

Setting the PTZ camera focusing distance
  • For PTZ cameras of the eSpace IPC V200R001C01 or eSpace IPC V200R001C02 version, the following uses eSpace IPC5811-WD-Z20 as an example to describe how to set the focusing distance. The procedure for setting the focusing distance of PTZ cameras in other versions is similar.
Access the web page of the PTZ camera, choose Settings > Channel Configuration > ISP Parameters, and set the minimum focusing distance on the ISP Parameters page, as shown in Figure 1.

Figure1 Setting the minimum focusing distance



NOTE:
Strictly follow the instructions on the label on the camera. The documentation is for your reference only.
  • For HD PTZ cameras of the IPE V100R001C03 version, the following uses eSpace IPC5902-Z20 as an example to describe how to set the focusing distance. The procedure for setting the focusing distance of HD PTZ cameras in other versions is similar.
Access the web page of the IPC, right-click the live video screen, choose Sensor Config from the shortcut menu, and click the Focus Setting tab, as shown in Figure 2. Set Focus Mode and FocusNearLimit based on the surveillance site requirements. For description of the parameters, see the Sensor Configuration Guide.

Figure2 Setting the minimum focusing distance


  • For SD PTZ cameras (eSpace IPC1801-Z36 and eSpace IPC1901-Z36) of the IPE V100R001C03 version, the following uses eSpace IPC1901-Z36 as an example to describe how to set the focusing distance.
Access the web page of the IPC, add and invoke preset 95 under PTZ Configure, and access the MAIN MENU page, as shown in Figure 3. Use the PTZ control button on the right to choose Camera Setup > Focus. The focusing setting page is displayed, as shown in Figure 4.

NOTE:
Use the up and down arrows on the PTZ control button to select options on the MAIN MENU page, and use the left and right arrows to confirm the selection. For details about operations on the MAIN MENU page, see the Web Operation Guide.

Figure 3 MAIN MENU page



Figure 4 Setting the minimum focusing distance



Setting the non-PTZ camera focusing distance

Set the minimum focusing distance for dome cameras, box cameras, and bullet cameras.

The minimum focusing distance of a dome camera, box camera, or bullet camera needs to be set by adjusting the focus adjustment button on the camera. The following takes eSpace IPC5201-VR as an example.

Open the lens of the camera and manually adjust the focus length. Figure 5 shows the operations.

Figure 5  Manually adjusting the focus length



Step 6 Check whether the fault is rectified.
  • If yes, no further operation is required.
  • If no, contact your service provider for assistance.
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Root Cause
The possible causes are as follows:
  • There is too much dust in the working environment of the IPC so that the infrared effect and focusing are affected.
  • The dust on the IPC shield is not cleared so that the focusing and image quality of the IPC are affected.
  • The installation location of the IPC jitters severely so that the IPC cannot automatically focus.
  • The IPC is blocked by some objects or illuminated by bright light.
  • The focusing distance is improperly set.

END