Am 27.05.2013 um 02:24 schrieb Jack <[email protected]>: > Le 27/05/2013 01:26, Max a écrit : >> Am 27.05.2013 um 01:00 schrieb Jack <[email protected]>: >>> Le 26/05/2013 20:56, Max a écrit : >>>> hi list, a student of mine, Jakob Gomoll, did solve how to track multiple >>>> blobs while every blob keeps its ID. >>>> Here is where i scratch my head: It works fine until you render the output >>>> of the multiblob tracker to a rectangle. >>>> I'd like to understand why this is. >>>> >>>> Is it a bug or a feature? >>>> connect the tracker to the pix_texture (where the red line is) and it will >>>> mess up the result: >>>> >>> Hello Max, >>> This could be interesting for you : >>> http://www.mail-archive.com/[email protected]/msg42343.html >> Thanks Jack, >> I know – I have posted on this thread too. We solved this problem >> differently. Because our application was microscopy and we had specimen who >> were stopping their movement for a while before moving on, the continuity >> approach wasn't working. Since we based the blob detection on frame >> differences [pix_movement] rather than background subtraction from a >> reference frame [pix_background] blobs who were resting for a few frames >> simply disappeared and got a new ID assigned. >> Our approach is to set a time-out after we declare a blob dead. If it starts >> moving in the same region (size is settable too) again before the time-out, >> we pick up the old ID. So rather than using movement vectors as reference we >> used proximity. All data is stored in tables. >> >> The patch works beautifully without any externals. Have you tried? >> >> So this problem is already solved - my question was rather a Gem thing: why >> does is stop working when I want to render the image behind it? Do you know >> this? >> >> Max >> > Sorry, i didn't see your patch in your previous post. > If I try to open it, i get : > arraysize blob_ids > ... couldn't create > > What is [arraysize] ?
oh, darn - seems it isn't completely vanilla then. it is an external by Juha Vehviläinen http://puredata.info/downloads/arraysize _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
