and, of course, don't miss the NUI group forum: http://nuigroup.com/forums/viewforum/33/
and the original version of blobDetection http://v3ga.net/processing/BlobDetection/ best, andrei On Thu, Jan 8, 2009 at 12:10 PM, Andrei Thomaz <[email protected]>wrote: > hello, > I've ported a blob detection Processing library, blobDetection, to AS3. It > is slow, but maybe you can optimise it. > http://andreithomaz.com/labs/?p=8 > > Using BitmapData.getBoundsRect(), I started BitmapBlobDetection. It works > faster: > http://andreithomaz.com/labs/?cat=4 > > I've also developed a kind of register of visual objects to be affected by > blobs movements. I need to make some examples before publishing it, but feel > free to ask me the files privately. I have used the register in the > touchscreen jukebox (http://andreithomaz.com/labs/?p=21). > > > best, > andrei > > > > On Thu, Jan 8, 2009 at 8:58 AM, Piers Cowburn <[email protected]> wrote: > >> There's good stuff by Grant Skinner too: >> http://incomplet.gskinner.com/index2.html#camwriter >> >> Piers >> >> >> >> On 8 Jan 2009, at 10:35, Ian Thomas wrote: >> >> Yeah, I absolutely get the idea (as I said, we were discussing it >>> yesterday - with reference to an infra-red camera, but same >>> principle). Check out Mario's stuff, there are areas-of-colour >>> recognition algorithms there which will be of help, I think. >>> >>> Cheers, >>> Ian >>> >>> On Thu, Jan 8, 2009 at 10:08 AM, Anthony Pace <[email protected]> >>> wrote: >>> >>>> To my knowledge all flash integration for multi-touch has been made >>>> possible >>>> by using flosc by ben chun, or with OpenCV and touchLib; however, what I >>>> am >>>> proposing is that it is possible directly through the use of the flash >>>> player and a simple cam rig. I think that it should be possible, and at >>>> least somewhat comparably fast, considering the player doesn't have to >>>> parse >>>> xml socket data on a continuous basis, and all image conversions are >>>> done by >>>> the player. I do concede that doing in c++ will most likely prove to be >>>> faster; however, I figure why not try it out. >>>> >>>> Since I know c++ somewhat I figure I will probably look at their >>>> libraries >>>> if I get stuck; yet, in the meanwhile, this is a nifty experiment. >>>> >>>> Here is the video that sparked it... >>>> http://www.youtube.com/watch?v=pQpr3W-YmcQ >>>> >>>> Colour tracking would be efficient in a system where you have multi >>>> coloured >>>> thimbles or reflective tape, which is what I was thinking of when I came >>>> up >>>> with this idea. >>>> >>>> http://anthony-pace.deviantart.com/art/add-VR-to-current-FPS-GAMES-91091960 >>>> >>>> Ian Thomas wrote: >>>> >>>>> >>>>> I was actually thinking of Mario's lecture at FoTB 2008 where he used >>>>> very similar algorithms to read square barcodes (whatever those things >>>>> are called) from a webcam. Not multitouch, but there's a lot of >>>>> similar code (spotting areas of colour, eliminating noise). >>>>> >>>>> Worth a look, Anthony. >>>>> >>>>> Funnily enough we were talking about exactly the same system for >>>>> multitouch here yesterday - spotting areas of colour. One of our >>>>> developers had seen some demo of a similar system on TV over the >>>>> weekend... >>>>> >>>>> Ian >>>>> >>>>> On Thu, Jan 8, 2009 at 9:12 AM, Glen Pike <[email protected]> >>>>> wrote: >>>>> >>>>> >>>>>> Hi, >>>>>> >>>>>> Mario Klingemann demo'd something like this at FlashOnTheBeach 2007 - >>>>>> have >>>>>> a look at quasimondo.com to see the "2D or not 2D lecture" - not sure >>>>>> if >>>>>> he >>>>>> released any code though? >>>>>> >>>>>> http://lectures.quasimondo.com/ >>>>>> >>>>>> Glen >>>>>> >>>>>> Anthony Pace wrote: >>>>>> >>>>>> >>>>>>> I have figured out how to make flash work as a multi-touch system... >>>>>>> I >>>>>>> am >>>>>>> coding it now... >>>>>>> >>>>>>> it is so darn simple... >>>>>>> it just came to me after watching a video on how to make your own >>>>>>> multi-touch input device using a webcam a piece of white paper and a >>>>>>> box >>>>>>> to >>>>>>> block most of the light so the cam only sees light and dark. >>>>>>> >>>>>>> Since it is all based on blobs, and processing the image through a >>>>>>> filter >>>>>>> to break down the logic, and flash has access to web cams, I can just >>>>>>> convert the image to black and white, threshold the image to find the >>>>>>> blobs, >>>>>>> average out a hit test area based on the finger positions, and all >>>>>>> that >>>>>>> would come after is putting together the finger gesturing logic. >>>>>>> >>>>>>> for instance if two blobs exist around their averaged points and have >>>>>>> not >>>>>>> moved too much or at all, yet there is a third blob that is moving a >>>>>>> significant amount, perform a specific function based on its >>>>>>> direction >>>>>>> (directional logic through tracking input fed into basic physics >>>>>>> equations >>>>>>> and Pythagorean concepts) >>>>>>> >>>>>>> If someone has beaten me to it, I would love to know; however, if you >>>>>>> beat >>>>>>> me to it, after reading my post, tell me about it and show me your >>>>>>> source so >>>>>>> my life is made easier. >>>>>>> _______________________________________________ >>>>>>> Flashcoders mailing list >>>>>>> [email protected] >>>>>>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> Flashcoders mailing list >>>>>> [email protected] >>>>>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >>>>>> >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> Flashcoders mailing list >>>>> [email protected] >>>>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> Flashcoders mailing list >>>> [email protected] >>>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >>>> >>>> _______________________________________________ >>> Flashcoders mailing list >>> [email protected] >>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >>> >> >> _______________________________________________ >> Flashcoders mailing list >> [email protected] >> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >> > > _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
