Vivotek FE8174 user manual Client-side dewarp Local dewarp

VIVOTEK

■Local dewarp mode

Mount type	Configurable Display Modes
Ceiling / Floor	1O, 1P, 2P, 1R, 4R
Wall	1O, 1P, 1R, 4R

Local dewarp is designed for 3rd-party software that has not implemented the dewarp plug-ins. Plug- ins are required to convert a fisheye image into a regional or panoramic view. Without the plug-ins, you can only see the original circular view on a client computer. If configured, the dewarp process takes place on the network camera, rather than on the client computer. The camera then delivers the dewarped view of video stream to the client side.

	Client-side dewarp	Local dewarp
Pan/tilt on Regional view	Yes	N/A, fixed view
Pan on Panoramic view	Yes	N/A, fixed view
Zoom in/out on Regional	Yes	N/A
view
Change of Display mode	Yes, from the main page; all modes	Fixed, configured in firmware
	dewarped from a 360° all-round	console: Media > Video
	stream
Available Display modes	1O, 1P, 1R, 2P, 1O3R, 4R, 4R Pro,	1O, 1P, 2P, 1R, 4R
	1O8R, 1P2R, 1P3R

Note that once the video has been dewarped on the camera side, you will not be able to utilize the zoom in, zoom out, and PTZ control on the client computer. And, for example, you can not change the view angle of a regional view on the live view page. The view angle is configured on the PTZ > PTZ settings window. Please refer to page 96 for more information.

Also note the following when using the Local dewarp:

•To disable the Local dewarp function, select the 1O mode from its pull-down menu.

•Local dewarp is configurable on stream #1 and stream #2.

•The PTZ control panel is not available with the video stream on which the Local dewarp is applied.

•Each video stream can be configured with an individual local dewarp mode.

•If you change the mount type settings, the Local dewarp configuration will be erased. The camera then resumes the original 1O display mode.

•The PTZ preset positions have been cancelled in this revision of firmware.

•Note that some software vendors, such as Milestone®, has already implemented the support for VIVOTEK's plug-ins. You only need to download and install plug-ins for use with Milestone's software.

■Frame size

You can set up different video resolutions for different viewing devices. For example, set a smaller frame size and lower bit rate for remote viewing on mobile phones and a larger video size and a higher bit rate for live viewing on web browsers. Note that a larger frame size takes up more bandwidth.

■ Maximum frame rate

This limits the maximum refresh frame rate per second. Set the frame rate higher for smoothlier video quality.

Regardless of the power line frequency setting (60Hz or 50Hz), the frame rates are selectable at 1fps, 2fps, 3fps, 5fps, 8fps, 10fps, and 15fps. You can also select Customize and manually enter a value.

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