Disqus - Latest Comments for jozilla

Re: Belgian CHI Papers

Jo Vermeulen — Wed, 27 Jun 2012 08:15:59 -0000

Thanks!

Re: Belgian CHI Papers

Jo Vermeulen — Wed, 27 Jun 2012 07:17:12 -0000

Oops, that's right! I've fixed it now. Any idea where you can find the CHI 2012 acceptance rate and the number of submissions?

Re: Getting up and running with the Kinect in Ubuntu 12.04

Jo Vermeulen — Mon, 25 Jun 2012 05:22:38 -0000

By learning from others and by reading the built-in documentation (e.g., manpages), I guess. A more detailed answer might be a good idea for a next blog post ;)

Re: Getting up and running with the Kinect in Ubuntu 12.04

Jo Vermeulen — Thu, 07 Jun 2012 07:48:35 -0000

Indeed. I also have to run the libfreenect demos as root to be able to use the Kinect. I guess that's because the demo programs need to have the right permissions to be able to remove the gspca kernel module automatically.

Re: Getting up and running with the Kinect in Ubuntu 12.04

Jo Vermeulen — Thu, 24 May 2012 06:17:02 -0000

I'm glad you found it useful!

Re: Getting up and running with the Kinect in Ubuntu 12.04

Jo Vermeulen — Fri, 11 May 2012 09:40:59 -0000

Thanks for pointing that out, Antonio!

It seems version 0.1.2 is available in the current development release of Ubuntu (12.10 -- Quantal Quetzal). Version 12.04 ships with version 1:0.0.1+20101211+2-3 which is a snapshot from late 2010, I guess. I just found a PPA by Florian Echtler with up-to-date packages though. I'll try that and see whether it works!

Re: Belgian CHI Papers

Jo Vermeulen — Fri, 11 May 2012 06:27:02 -0000

Hi Erik,

Thanks for your comment!

I didn't mention those because I mainly looked at archival publications (full papers or notes). Nevertheless, it's indeed nice to see that participation at CHI by Belgian groups/researchers is increasing each year!

Re: Getting up and running with the Kinect in Ubuntu 12.04

Jo Vermeulen — Wed, 02 May 2012 18:44:23 -0000

You're welcome! Thank you for mentioning this blog post on Twitter :)

Re: Reflecting on Participating in the Vlaamse Programmeerwedstrijd

Jo Vermeulen — Tue, 24 Apr 2012 05:59:05 -0000

Thanks, Tom! It was a lot of fun, so if all goes well, I'll try to participate again next year.

Re: Getting up and running with the Kinect in Ubuntu 12.04

Jo Vermeulen — Thu, 12 Apr 2012 08:10:02 -0000

You're very welcome! I mostly wrote this post to document how to get libfreenect to work on Ubuntu, so I wouldn't forget myself :) I'm glad you got it to work eventually, at least it's easier to work with libfreenect on UNIX systems than on Windows :)

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Mon, 26 Mar 2012 10:56:36 -0000

That piece of code tries to load the OpenCV 1.0 library. This might not work with newer versions of OpenCV.

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Thu, 16 Sep 2010 08:42:37 -0000

IIRC, I was still using version 1.0 or 1.1 back then.

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Wed, 20 Jan 2010 09:33:07 -0000

You're welcome!

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Wed, 20 Jan 2010 06:11:10 -0000

I currently don't have a Linux machine for testing, but IIRC the line

cascade = cv.LoadHaarClassifierCascade('haarcascade_frontalface_alt.xml', cv.Size(1,1))

requires the cascade file to be in the same directory as the script.

By the way, the script I presented in this blog post won't work on Windows. You should use the simple_winclient.py script for that (which can be found in the tarball available from my website).

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Wed, 20 Jan 2010 05:48:45 -0000

Are you sure you have the cascade file in the same directory?

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Tue, 12 Jan 2010 09:26:39 -0000

You're welcome! I'm glad you found it useful.

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Tue, 05 Jan 2010 11:53:27 -0000

That's Linux-specific of course, but will indeed do the trick.

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Mon, 04 Jan 2010 04:41:23 -0000

I know there is a function to get the number of cameras:

cvcamGetCamerascount()

Maybe that helps?

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Mon, 07 Dec 2009 16:21:43 -0000

Thanks a lot! I'll give it a try!

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Fri, 13 Nov 2009 08:06:02 -0000

You should install OpenCV first, and try to run the simple_winclient.py script. The software is available at my website.

Re: Research update

Jo Vermeulen — Sat, 31 Oct 2009 18:17:23 -0000

Thanks Ruben! :)

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Fri, 30 Oct 2009 07:39:17 -0000

The script uses Gary Bishop's CVtypes, not python-opencv.

Re: How to efficiently perform a literature review

Jo Vermeulen — Fri, 30 Oct 2009 06:18:37 -0000

Thanks Juan!

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Mon, 10 Aug 2009 08:23:45 -0000

It might be good to use a specific GUI toolkit in this case, such as WxWindows.

Have a look at Gary Bishop's blog post, where he grabs a bitmap from the camera and displays this in a Wx window: http://wwwx.cs.unc.edu/~gb/...

Re: Fun with Python, OpenCV and face detection

Jo Vermeulen — Mon, 10 Aug 2009 08:22:07 -0000

Are you using Ubuntu?