Quote:
Originally Posted by vinnie
My team is going to be putting a small Atom powered computer on our robot to do vision processing and other high-level functions. We are going to be using the javacv library to utilize OpenCV in Java. We experimented with vision processing on the cRIO last year, but we found that it was very slow and often lagged the rest of the robot functions. You can easily (I wrote a demo program in ~10 minutes) detect edges/contours with OpenCV and from there decide whether or not the contours make the rectangle you're looking for or not.
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I won't say that this is a bad idea but I have seen quite a few teams try something like this and have it cause them more trouble than it is worth. The cRIO is powerful enough to handle vision and motor control, there are thousands of industrial manipulators doing both on the same hardware FIRST uses.
Quote:
Originally Posted by davidthefat
Good luck doing that.
May I suggest using linux without xserver and just going with C++ to bypass the JVM.
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While it will reduce the complexity of setting up the board (computer) they use to some degree it is probably far easier to spend an extra hour configuring their OS of choice than it would be to switch from JAVA to C++.
Quote:
Originally Posted by cesaros
My Question now is:
Will OpenCV work normally on cRIO, and, will it take a lot of processing from it ?
We often write some huge programs to avoid errors, and it already take a little of cRIO, but, if exits anything that we can use to process this images :/
Using any kind of notebook,netbooks, whatever... Are out of our mind, since our money isn't enough for it.
Thanks.
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Look at the files mentioned in Greg's posts they will give you a good idea of what is available for you to use on the cRIO.
Derek mentioned above that you could try to do the vision processing on the classmate or whatever computer you use for an OI. This may be an option for offloading some of the processing, however I'd imagine it would not work for Autonomous.