capturing video from medical equipment

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ghostrider - 25 Oct 2007 15:34 GMT

Does anyone know how to recognise the image capture signal from a
medical scope such as a video colonoscope? I've got video streaming
from the scope to the computer but want my app to recognise when the
scopes image capture button is pressed, rather than have to capture
the image by pressing a button in my app.

Thanks in advance

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John Mishefske - 26 Oct 2007 09:18 GMT

> Does anyone know how to recognise the image capture signal from a
> medical scope such as a video colonoscope? I've got video streaming
> from the scope to the computer but want my app to recognise when the
> scopes image capture button is pressed, rather than have to capture
> the image by pressing a button in my app.

Is the video you are receiving analog (over a coax cable into a video
encoding card like WinNov) or digital (over the network, viewable with
WMP or VLC or other program without a hardware card)?

Assuming you want to do this from Access I'd try to find software that
can decode your video, take a snapshot or save a frame of video and is
COM-aware so that you can control the video software from within Access.

If you are receiving digital video stream and can see the video then you
must have the appropriate decoder software already installed. The
question then is how to save a frame and how to do it from Access.

Can you currently see the video on the PC where you are developing your app?

Signature

'--------------------------
' John Mishefske
' UtterAccess Editor
' 2007 Microsoft Access MVP
'--------------------------

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ghostrider - 28 Oct 2007 13:45 GMT

> > Does anyone know how to recognise the image capture signal from a
> > medical scope such as a video colonoscope? I've got video streaming
[quoted text clipped - 22 lines]
> ' 2007 Microsoft Access MVP
> '--------------------------

I'm capturing video in my access app using an activex control. I can
do whatever I want with the video in my app such as capture frames to
jpg but what I want to know is if I can get my access app to recognise
the capture signal when the capture button is pressed on the video
scope. The scope equipment is connected to my computer's video card
by way of a composite cable.

Thanks

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John Mishefske - 30 Oct 2007 07:19 GMT

>>> Does anyone know how to recognise the image capture signal from a
>>> medical scope such as a video colonoscope? I've got video streaming
[quoted text clipped - 28 lines]
> scope. The scope equipment is connected to my computer's video card
> by way of a composite cable.

My guess is the your scope would need to send a signal via RS-232 or
other out-of-band method to allow you to carry out some "remote" action
within your Access app.

The key would be determining what your scope equipment does when the
capture button is pressed and how your software might detect and react
to this event.

AFAIK, there would not be any "signal" over the composite cable that you
could use. I'd suggest you contact your scope manufacturer and see if
this is possible.

Signature

'--------------------------
' John Mishefske
' UtterAccess Editor
' 2007 Microsoft Access MVP
'--------------------------

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