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Showing results 1 to 25 of 28 @ 0.01 seconds. Search: Posts Made By: jfk
Forum: Applications 2010-06-16, 11:25
Replies: 43
Views: 25,665
Posted By jfk
Re: [Request] Vuvuzela Horn app

An even better idea:
Let the user blow into the N900's microphone and use that to trigger playing the sound. :)
Forum: Applications 2010-04-29, 22:24
Replies: 56
Views: 323,336
Posted By jfk
Re: [Maemo 5] 3D on the N900 through head tracking

I agree, that would be pretty cool. But, I haven't really considered that yet. I'm not sure yet if I can or want to publish my implementation as Open Source. A closed source library wouldn't make...
Forum: Applications 2010-04-29, 13:13
Replies: 56
Views: 323,336
Posted By jfk
Re: This is it: 3d on the nokia n900 through head tracking

Well, both things were done by me. So you might see this video as news on BurgerFace, too. ;)



Yes, the camera tracks your face as long as you are in the field of vision of the camera. It...
Forum: Applications 2010-04-29, 10:49
Replies: 56
Views: 323,336
Posted By jfk
Re: This is it: 3d on the nokia n900 through head tracking

Thanks for posting the link! :-)




No, this demo isn't in the repositories. Do you mean BurgerFace, a game that I made and that's also based on head tracking? If so, that isn't in the repos...
Forum: Games 2010-04-22, 21:57
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Sorry for the slow answer, but I didn't get an e-mail probably because of the thread merging (or I don't know).

Yes, I implemented the Viola-Jones algorithm myself, including the trainer. It's...
Forum: Applications 2010-04-22, 16:55
Replies: 4
Views: 3,910
Posted By jfk
Re: Translator/Dictionary

Search engines are your friend. ;)

Information on QStarDict in extras: http://maemo.org/downloads/product/Maemo5/qstardict/

Dictionaries: http://stardict.sourceforge.net/Dictionaries.php
Forum: General 2010-04-22, 15:00
Replies: 11
Views: 8,931
Posted By jfk
Re: Klizavi in Mydocs, is a virus?

That must be a folder that you have (accidentally) copied onto the device. .exe files don't run on the N900. So you can keep it there or just delete it (if you don't need it).
Forum: Development 2010-04-19, 17:44
Replies: 4
Views: 2,565
Posted By jfk
Re: Strangest OpenGL bug I've ever seen

Adding that piece of code probably changes the memory layout of your program. Is it possible that you somehow corrupt your memory? Adding your "debugging" code might move the matrices in memory and...
Forum: Nokia N900 2010-04-15, 18:00
Replies: 196
Views: 49,388
Posted By jfk
Re: Take the official Nokia N900 Survey!

Well, they know your identity on the forums now. ;)
Forum: Nokia N900 2010-04-15, 11:38
Replies: 196
Views: 49,388
Posted By jfk
Take the official Nokia N900 Survey!

As posted by Jussi Mäkinen on Twitter:


(Source (http://twitter.com/luovanto/status/12216806300))

Rather hefty with 10 pages of questions, but can be completed in a reasonable time frame.
Forum: Games 2010-03-13, 11:10
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

No, I've only been drawing on top of the camera image. I haven't checked any other operations.
Forum: Games 2010-03-11, 22:47
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Uh, what code?
Does this post (http://talk.maemo.org/showthread.php?t=45866&page=4#31) maybe help you?
Forum: General 2010-03-09, 18:19
Replies: 14
Views: 9,396
Posted By jfk
Re: TV out cable too short? How to extend?

I believe that you can use any cinch extender. I recently used one for audio and it worked flawlessly.

Edit:
For what it's called see here: http://en.wikipedia.org/wiki/RCA_jack
Forum: Games 2010-03-08, 09:54
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Thanks a lot to everyone who has participated in the survey! :) I just closed it and now it's time to evaluate the results.
The game can still be downloaded though.
Forum: Nokia N900 2010-03-06, 22:15
Replies: 2
Views: 2,825
Posted By jfk
Re: n900 back camera jpg quality 85?

That has been discussed here (http://talk.maemo.org/showthread.php?t=33420&highlight=jpeg+quality). The search is your friend. ;)
Forum: Games 2010-03-05, 11:34
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Whoops, it's actually only a Diplom. :)



I'm using SDL because it's made for games, works well and I already knew it. Honestly, I don't really know anything about QT. But, as it is a GUI...
Forum: Games 2010-03-03, 14:07
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

I don't use GTK. I use SDL (http://www.libsdl.org/) and copy the image data from the camera manually to the screen. Overlays don't seem to work as they cause flickering.

Hope that helps. :)
Forum: Games 2010-03-01, 18:52
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Yeah, my experiments have also shown that the lighting can be "too" good. The detection doesn't work that well when the light comes from behind you or from the side so that your face is not evenly...
Forum: Games 2010-02-28, 22:49
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Yes, that's the one. It's a pretty nice algorithm, though it has its limitations. I also threw some optimizations into the mix.



Thanks! :)

Using the front or back camera is not a big...
Forum: Games 2010-02-28, 22:06
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

What does it say when you do:
sudo gainroot
apt-get install libsdl-ttf2.0-0
Forum: Games 2010-02-26, 08:29
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Theoretically fingers are more or less possible. But, as fingers are completely different from faces, it would have do use a different set of algorithms. The face detection system I'm currently using...
Forum: Games 2010-02-26, 00:37
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

Looking forward to it. :)
Yes, this is more or less only a proof of concept. There are lots of other scenarios were such face tracking could be used. Unfortunately, I don't have the time at the...
Forum: Games 2010-02-25, 23:54
Replies: 86
Views: 48,700
Posted By jfk
Re: BurgerFace: Face tracking in a game

libsdl-ttf-2.0-0 seems to be in extras: http://maemo.org/packages/view/libsdl-ttf2.0-0/ :confused:
Do you have that disabled?
Forum: Games 2010-02-25, 21:21
Replies: 86
Views: 48,700
Posted By jfk
BurgerFace: Face tracking in a game

I'm currently working on my thesis and I've created a small game for the N900. The gameplay is pretty simple. You just have to pick up burgers to gain points and dodge knives in order to survive.
...
Forum: Development 2010-02-03, 15:59
Replies: 11
Views: 4,467
Posted By jfk
Re: How to use led? (Fremantle/Qt 4.6)

Maybe it would be better to use the low-level /sys interface? There's a little documentation in the wiki: http://wiki.maemo.org/LED_patterns#Low_Level

That way you could just use custom patterns...
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