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Index › Programming Questions & Help › Video Capture,  Movie Playback,  Vision Libraries › capture and then merge on the fly videos
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capture and then merge on the fly videos (Read 862 times)
smallfly
capture and then merge on the fly videos
Nov 11th, 2006, 12:18am  
Hi,

What would be the best way to record/capture up to 10 small videos (10seconds - B&W and threshold) and then merged them on the fly.

I mean...imagine you have a camera setup in a room. One person (at a time and for 10sec) enters the room. You record a small video of the person's shadow. When the second person enters the room (alone and for 10sec), the first recorded video (of the shadow) is projected, and a second video is recorded...when a third person came in, the two previous recorded videos are merged and projected, and a new one is recorded...and so on....

I'm thinking of recording/writing small .mov files and then add them on fly (each time a new video is recorded)...but the thing is that I want to be able (using blob detection) to let people interact/distort the recorded and merged videos that are projected back to them.

Any advices are really welcomed.
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smallfly
saving blobs detected with v3ga's library
Reply #1 - Nov 26th, 2006, 5:06am  
Since my last post I decided to try something else to achieve what I want...

Instead of recording videos, I'm saving in an array the edges of the blobs I detected using the library blobDetection...and it's works great.

but in order to make everything more efficient, I would like to save all the detected blobs. I mean, instead of saving in arrays all their characteristics (center coord, edges), I would like to save in an array the complete blobs.

To do so, I thought I just had to save the "object" returned by "theBlobDetection.getBlob(n);" .... but the value returned by this method seems to be a reference/link and not an actual blob.

I looked at the source code of the v3ga's lib but I can not find what I should retrieve and save in order to do what I want... any advices/ideas ?
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« Last Edit: Nov 27th, 2006, 3:45pm by smallfly »  
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