Vision Project

[Kevin Cramer]

Hi All,

I am playing around with some vision detection code with PB. I started with some movement detection. It works fairly well and is fun to play with. You can play with settings to increase or decrease its sensitivity. Of course, i would prefer to be able to access the OpenCV librabries in PB and then I could do some really interesting stuff that might have some commercial value, but the integration of C routines within PB is not something I am well versed at. If anyone wants to work with me on this and has a keen interest in such applications, just let me know...

This code also has an image reduction routine that is commented out, but is the beginning of face detection using Haar like features...i hope to get this working sometime soon...

Code is attached...

Best,
Kevin

[Chris Holbrook]

Kevin,

the code ran but did not appear to do anything for me. No AVI was created.

[Kevin Cramer]

Re:avi

I disabled the AVI routine for performance. The purpose of the code is to track movement, not to store an AVI. you should have noted the tracking on the display.

[Marco Pontello]

I compiled it with PB/Win 9.00, and it crash instantly after the first image appears. If you add some loggin / errors reporting I'll be happy to report what happens in more detail.

Bye!

[Kevin Cramer]

vision

this was run on pb 8...i do not own pb 9....

[Marco Pontello]

Understood. Can you attach an 8.xx compiled version?

Thanks,
Bye!

[Kevin Cramer]

exe version attached

Good luck!

[Marco Pontello]

Thanks! Sorry to report that it crash in the same way. I'm on XP PRO, SP2.

Bye!

[Kevin Cramer]

you're on your own now!

Bye!

[Roberto Valois]

Runs fine here, compiled with pb9.

Maybe the problem is that this code is resolution dependent. You may use the software provided with your camera to set the format to 320x240x24 and then run.

Regards,
RValois.

ps. You can also use the pbcap original code to do that.

http://www.powerbasic.com/support/forums/Forum7/HTML/001163.html

[Marco Pontello]

Yes, the different default format was the problem, thanks!

Bye!

[Kevin Cramer]

Video Code

I forgot to acknowledge Roberto Valois for his code to handle the webcam acquisition...without which I could not code this and the follow on work i will be doing as well...

Kevin