Video Processing-Marker Detection slow?

asked 2015-03-17 05:00:15 -0500

updated 2015-03-17 06:59:15 -0500

thdrksdfthmn gravatar image

Hi there! I am trying to build a program using ArUco Library which tracks markers and renders virtual objects on them. However,whenever marker detection process takes place, the frame rate drops a lot. What can I do to decrease processing time? Right now I build on Debug.Will it be better on release or not? Also, what else could I do to have real time video processing? I tried using pyrdown function, but the results are almost the same.

Any advice for video processing in real time is welcome!

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for realistic timing, use a release build.

berak gravatar imageberak ( 2015-03-17 05:02:38 -0500 )edit

Ok I used Release mode. It is much better,however I still need something faster.Any other ideas? Is it true that by using OpenCV 3.0 video processing may be better? Right now I use 2.4.10

marios.b gravatar imagemarios.b ( 2015-03-17 05:57:20 -0500 )edit

no, that won't make much difference.

berak gravatar imageberak ( 2015-03-17 06:04:36 -0500 )edit

What resolution do you work on? I am sure that the processing (detection) may be done on a lower resolution, and this will make a big difference in time (except if you have done this already)

thdrksdfthmn gravatar imagethdrksdfthmn ( 2015-03-17 07:02:03 -0500 )edit

640x480 You mean using pyrdown right? Or just by passing to the processing function a smaller image?Isn't that what pyrdown does?

marios.b gravatar imagemarios.b ( 2015-03-17 07:20:03 -0500 )edit

I was thinking at the resize. It seems that pyrDown does something else (a little bit)

thdrksdfthmn gravatar imagethdrksdfthmn ( 2015-03-17 07:43:07 -0500 )edit

Oh then you think I should resize and add a resized image for processing huh? Ok I will try it!

marios.b gravatar imagemarios.b ( 2015-03-17 08:08:23 -0500 )edit

I have done that for making faster the face detection, so I suppose that it will improve speed in your case, too

thdrksdfthmn gravatar imagethdrksdfthmn ( 2015-03-17 10:17:06 -0500 )edit