# Select multiple cameras

Aim

To mix the live view of multiple camera in a picture-by-picture fashion.

important When you mix video images of many cameras, the resulting resolution per camera image is reduced. Make sure that this resolution is high enough for proper detection and tracking.

Prerequisites

▪For GigE cameras (including PhenoTyper 2), see Using multiple GigE cameras, Connect the GigE camera to the PC and Assign IP addresses

▪For analog cameras (PhenoTyper 1): see Connect analog cameras to the computer

Multiple digital cameras

EthoVision XT mixes the camera images in a picture-by-picture fashion.

1.Connect your cameras.

Plug each camera to the port of its Ethernet board. Each camera has its unique link with one of the ports of the Ethernet interface board. If you swap cameras, EthoVision XT won’t get the camera image. See Using multiple GigE cameras and Assign IP addresses

2.In the Experiment Settings, select the number of cameras from the list next to Number of sources.

3.Select the cameras under Source. The camera names will show a number in brackets at the end, which makes it possible to distinguish between the cameras.

4.Select the Resolution, the Frame rate and the Color space for the first camera. The settings are then applied automatically to the other cameras. See Adjust camera settings in EthoVision XT

5.Next to Merged camera view, select the resolution of the merged camera view. This is also the resolution of the video file that EthoVision XT creates if you opt for video recording.

6.Click the preview icon to get a preview of the merged camera images.

example Selecting four GigE cameras: note the different IP addresses.

notes

▪For how to install and connect digital GigE cameras, watch the video tutorial Set Up the Cameras. To open the tutorial, choose Help > Video Tutorial.

▪The video resolution and frame rate that you set in one experiment is selected automatically in your next experiment. When you create a new experiment, always check that the camera settings are those required for that experiment. See also Configure the digital camera

See also

▪Connect the GigE camera to the PC

▪Using multiple GigE cameras

▪Tested configurations with GigE cameras

▪Check that the camera is set up properly

Multiple analog cameras

note Mixing images from analog cameras using encoder boards other than the Picolo Alert is not supported.

Two or four analog cameras

1. Connect your cameras to the inputs of your encoder board. See Connect analog cameras to the computer

2.Next to Number of sources, select the correct number of cameras from the list and select the inputs from the list under Source. The resolution and frame rate are selected automatically, dependent on whether you have NTSC or a PAL cameras.

3.Next to Merged camera view, select the resolution of the mixed image. This is also the resolution of the video file that EthoVision XT creates if you opt for video recording. See Acquire one trial

4.Click the preview icon to get a preview of the merged image.

example Selecting four analog cameras:

More than four analog cameras

note EthoVision XT supports a maximum of 4 analog cameras. The Quad Processing Unit previously used for 16-camera setups is no longer available. See Connect analog cameras to the computer. If you use PhenoTyper 1, see also the PhenoTyper - EthoVision XT - Reference Manual. See Manuals

See also

▪Tested configurations with Analog cameras

▪Install analog cameras