Knowledge Base

Power over Ethernet (PoE) Injector

If you bought your GigE camera elsewhere and you are not using an Ethernet board powered from the PC, you need a Power over Ethernet (PoE) injector to power the camera. In all cases it must be a Gigabit PoE injector.

USB 3.0 Interface Boards

See Install the USB 3.0 interface board.

Graphics Card for Deep Learning-Based Tracking

If you intend to use the Deep learning technique for nose- and tail-base detection, you need a powerful NVIDIA Graphics Processing Unit (GPU). GPUs other than NVIDIA would not work due to lack of compatibility with the NVIDIA TensorRT software component. For suggestions, see Deep learning: Requirements.

IMPORTANT Make sure to install the latest driver for your graphics card.

Monitor

Your monitor should be set to at least 24 bit color depth. If you use a dual monitor set-up, both monitors should be at least 24 bit. To check the color depth, search for Display in Windows or open the graphics control panel of your display.

Camera

For a list of the camera models currently supported, see Camera Installation. If you would like to use another type of camera, please check with your nearest Noldus representative first.

IMPORTANT For correct functioning of cameras, we recommend to turn off automatic updates for device drivers. See Turn off Automatic Updates for Device Drivers.

Disk Space to Store Video Files

If you are tracking from video files, you need sufficient free disk space to store them. You need to be especially aware of the disk space when you let EthoVision XT save videos while you carry out batch acquisition and for long recordings. See Video File Size.

If your video files are on a DVD or network drive, first copy them to your hard disk drive before loading them in EthoVision XT.

External Hard Disk Drives

• For tracking. We do not recommend that you do tracking from video files that are stored on an external hard disk. Always store the video files on the hard disk of the EthoVision XT computer.
• For video playback. Once you have done tracking, you can store the video files on an external hard disk. When you want to review the video in the Integrated Visualization (see Plot Integrated Data), EthoVision XT asks you to locate the video files if it does not find them in the default experiment location on the hard disk. Select the folder on the external hard disk where the video files are stored. You can also instruct EthoVision XT to look for video files in an alternate folder. See also Preferences for Default Folders.

NOTE Video might sometimes not play smoothly depending on the size of the video file and the speed of data transfer from the external hard disk.

See Also

• System Requirements
• Restrictions in EthoVision XT
• How to Prevent Missed Samples

Network and User Rights

Using EthoVision XT across a Network

Please note that it is not possible to install EthoVision XT on one computer and access it from another across a local area network. The program must be installed on the computer where it will be used. However, you can work with EthoVision XT remotely using one of the remote control applications like TightVNC or TeamViewer. See Work with EthoVision XT Remotely.

You can track from video files stored at other computers in your network (depending on your network's bandwidth), although we recommend to copy the file to your hard disk before tracking. To let EthoVision XT know where to find the video files, choose File > Preferences and select the location on the network in the Alternative Media Location field.

Working with EthoVision XT as a Restricted User

The user rights for folders and files are different for System administrators, Power users, and restricted (normal) users. Users who have Administrator rights and Power users have enough access rights to use EthoVision XT and its files without any limitations.

For restricted users the following limitations apply:

• As a restricted user you can create new experiments and view, edit and delete your own experiments.
• If you want to make it possible for other users to edit or delete your experiments, your system administrator must change the Windows security rights for the folder that contains the experiments. By default this folder is C:\Users\Public\Public Documents\Noldus\EthoVision XT\Experiments. For instance, to set the Modify rights to Everyone: in the Windows Explorer, select the folder mentioned above, right-click it, select Properties and then the Security tab and set the rights.