How to acquire video from PCI TV tunner card in Labview

Hello Guys,
I am a new commer in this fourm and this is my first post.
I am working on a project where i need to acquire analog video into labview 8.5 for this purpose i have a analog security camera and PCI TV tunner card (Manufactured by ASUS) and i built the routine in Matlab 2007 and its working(But not satisfying me).
I am very keen to watch live video stream in Labview so in this regard i need your help .
Thanks alot for your time.
wAqAs
Design Engineer
COMTEC PAK

Gondor wrote:
Hi - did you do anything special to get the Labview Mathscript node to use the Matlab Image Acquisition Toolbox? It won't let me type the following: vid = videoinput('winvideo'); whereas this works just fine in Matlab proper. Do I have to configure the winvideo adapter in Labview or is it hating my code at an even higher level than this? (Block Diagram Errors: "Unknown symbol on line 2 column 7: videoinput" ...)
First Mathscript is NOT Matlab. It is a National Instruments implementation resembling Matlab. As such it does not and can not make use of Matlab Toolboxes at all.
Second though not directly related to this. Looking at http://www.mathworks.com/products/imaq/supportedio.html I see that they support a list of specific frame grabber manufacturers and Video for Windows, but not Direct X. So my previous assumption was wrong. What they most likely do in their IMAQ Toolbox is to implement a driver interface to each manufacturer specific API. This is 100% true for the National Instruments boards since NI-IMAQ or IMAQdx is the only means to access them respectively. So I guess they simply interface to the frame grabber manufacturer provided DLLs which you can do of course too in LabVIEW but NI won't do for you since they sell their own frame grabber hardware.
www.alliancevision.com is a first interesting check to see if you can buy LabVIEW drivers for a particular brand of frame grabber. Many have in the past thought they could quickly put together a frame grabber interface for some hardware by playing around with the Call Library Node to interface to the manufacturer DLLs, but that is serious software business and buying a driver interface is a lot more effective time and economy ways for most people.
Message Edited by rolfk on 04-21-2010 07:11 AM
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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