topic Dear yosun, in Software Archive

Support for Multiple Cameras

Jumpei_M_ — Mon, 01 Dec 2014 01:22:32 GMT

Hello,

I am using 4 Kinects (ver. 1) surrounding objects to get the full 3D image of them in real time.

I need higher resolution of the image and considering the use of RealSense depth cameras instead of Kinects.

Is RealSense depth camera capable of such use? specifically,

- Can multiple cameras be connected to one PC?

- If so, can these multiple cameras synchronize to prevent interfering with each other?

- Can each of the multiple cameras connected to one PC get 30 frames/sec?

yosun — Mon, 01 Dec 2014 13:12:44 GMT

RealSense SoftKinetic cameras have a different focal length than the Kinect... You'd have to place all 4 of them rather close together, compared to the Kinects...
AFAIK the current API does not support input from multiple 3d cameras. (at least not the unity plugin)
You can always set up your own mechanical rig with different vibrations for each camera to prevent interference
Why do you need 30fps for scanning? O_o

Dear yosun,

Jumpei_M_ — Tue, 02 Dec 2014 00:40:58 GMT

Dear yosun,

Thank you for your helpful answers.

I want to record a 3D video of animal (mouse) behavior for scientific purposes. Thus I need 30fps or more.

I am really looking forward a new release of API that support input from multiple 3d cameras.

I think that there is potentially large amount of needs for such use, as there are several commercial softwares for analyzing a 2D video of animal behavior (e.g., EthoVision).

Even though multiple camera

yosun — Tue, 02 Dec 2014 10:56:44 GMT

Even though multiple camera access is not supported by the SDK so it seems... You can always separately stitch the camera feeds together with your own algo (although this may mean connecting each camera to a separate computer) and setting up a client server, sending each stream to server to stitch.

Dear yosun,

Jumpei_M_ — Tue, 02 Dec 2014 13:02:32 GMT

Dear yosun,

Thank you for your suggestion.

I will try it, if SDK will not support the function.

However I still hope SDK would support the function in near future, since the system should be simple as possible for users.

I tested it with two cameras

samontab — Thu, 08 Jan 2015 03:18:02 GMT

I tested it with two cameras connected into the same computer, and it seems that it is only possible to access one at a time. Even at the lowest level type of access.

It was a very quick test, so it may still be possible to connect and access the camera in a more elaborate configuration, but just plug and play did not work.