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Yudhisthira

How to read an IP web cam ?

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Hi All,

 

I have made a robot that is controlled with my Asus tablet (TF300T). I have written the control app using MIT app inventor which communicates over bluetooth. What id like to do is mount some kind of video camera (either a stock wireless web cam, or a specialist camera from somewhere like sparkfun) onto the robot and then modify the control app to display the video feed. I understand that I will have to ditch app inventor to do this and write using the SDK directly and that is fine, but I would like to know if the concept is possible and if so could you kindly point me to some resources that document this ?

 

All help appreciated

 

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I don't know about your particular SDK, but the camera should have documentation. Many cameras you can connect to the network and then use http://camera.ip to see the image, or you could get a camera that has bluetooth. You might want a camera with its own battery unless the robot can supply power.

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It really depends on the camera you use. I've only worked with DVR systems, and those tend to be more or less a PITA. If I were looking at doing this my first instinct would be to get a Raspberry Pi and wire it up to broadcast the camera feed in whichever protocol is most convenient.

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It really depends on the camera you use. I've only worked with DVR systems, and those tend to be more or less a PITA. If I were looking at doing this my first instinct would be to get a Raspberry Pi and wire it up to broadcast the camera feed in whichever protocol is most convenient.

 

Thanks for the answers guys

 

Khatharr- This is something that came to mind, however, would it not be better if the IP webcam signals were picked up and processed by the tablet itself. This has 3 main advantages 1: the tablet has more processing power than the pi. 2: I would have to buy a PI specifically for this, I already have the tablet 3: I would have to power the pi as well as the webcam, the robot now has more weight/power consumption. What do you think ?

 

Essentially all I want is a simplified version of an app like IP Webcam (http://play.google.com/store/apps/details?id=com.pas.webcam&hl=en) embedded into my own android program

 

I found this thread on Stackexchange

http://stackoverflow.com/questions/712998/opencv-with-network-cameras.

Which covers using OpenCV with an IP Webcam, So I shall be giveing that a go.

 

Thanks again for your input guys.

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That's what I mean when I say it depends on the camera. If you've got a camera that's already giving you sensible data output then definitely take advantage of that. Do you have any documentation about the output format that's coming from the camera? If it's a common format then you should be golden. I hope the OpenCV thing works out for you. Sounds like you're having some fun. :)

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