Camera Overview

Camera Overview

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The <Camera> window is made available within the <Trainee> program, but effectively functions as a separate application.

 

It can either be used to film the supervisor during the pre-simulation briefing (for example if making a 'PowerPoint' presentation), or, alternatively, it can be used to record the activities of the trainee during the simulation itself.

 

In order to save on display space, the <Monitor> and <Therapeutic Interface > windows should be turned off when making 'PowerPoint' presentations.

 

The camera window has 3 menu items:

 

<Tools><Select Camera>
<Tools><Start Recording>
<Tools><Start Streaming>

 

CameraSelector

 

 

You must <Select a Camera> before <Recording> can be commenced. The selection dialog is shown above.

 

Two camera types are currently supported.

 

1.Any Web or other digital camera which is directly connected to the computer.
2.Any IP camera which can be accessed over the LAN / WAN.

 

Select the type you want and <Test> the video feed once you have made the appropriate selection.

 

Once you have selected a camera, you can <Close> the selector window and <Start Recording> if you wish.

 

The video stream is recorded in ASF format and the video files are recorded to the application directory and are named according to the following protocol:

 

"MSExxxx.asf"  where "xxxx" is an auto-incrementing, 4 digit sequence.

 

3 data storage rates are available:

 

<Small> corresponds to about 200 Kbits/sec.
<Medium> corresponds to about 1000 Kbits/sec.
<Large> corresponds to about 2000 Kbits/sec.

 

Whenever possible, the system attempts to record at a frame rate of 29.97 fps.

 

<Large> video files consume disk space at about 1Gb /hr. Therefore, you should periodically clear out recordings you don't want, otherwise your disk space will rapidly disappear!

 

You can <Stream> the video output to somewhere else on your LAN. To do this, simply click on the <Start Streaming> menu item. The streamed output is sent to port 10500 on the application computer, and can be viewed by any media player which is capable of interpreting an 'MMS' video data stream.

 

There is significant latency in the streamed output in this version of the program (~5 seconds). This will be addressed in future versions.

 

To connect to the URL,  enter an address in the form "mms://<IP address>:10500". The IP Address of the server is shown at the top right hand side of the <Monitor> window.

 

Thus a valid URL might be: mms://192.168.0.249:10500

 

You will almost certainly have to adjust your firewall in order to permit access to port 10500.

 

There are two small 'lights' at the top left-hand side of the window. The first indicates whether or not recording is occurring (red / green)  the second whether or not streaming