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Track rain cells

Hello,

I try to use opencv to track rain cell displacement. The cells move slowly, have lot of holes and can have disappear. I found blobtrack_sample.cpp and the result is not bad (see fig) but I would like to improve it a little bit. I identified two problem, which i presume can be solved if i change some parameters. First problem : sometimes the ellipse jumps far from the rain cell (especially when rain cell move out from the frame) and try to catch an other rain cell.

Second problem : the background obviously do not change but blob detection is still not very good. How can I do to detect a blob as soon as the pixel is not white ?

I suppose that I have to modify some parameters in blobtrack.hpp and blobtrackingauto.cpp...

Thank a lot for any help.

image description

Track rain cells

Hello,

I try to use opencv to track rain cell displacement. The cells move slowly, have lot of holes and can have disappear. I found blobtrack_sample.cpp and the result is not bad (see fig) but I would like to improve it a little bit. I identified two problem, which i presume can be solved if i change some parameters. First problem : sometimes the ellipse jumps far from the rain cell (especially when rain cell move out from the frame) and try to catch an other rain cell.

Second problem : the background obviously do not change but blob detection is still not very good. How can I do to detect a blob as soon as the pixel is not white ?

I suppose presume that I have to modify some parameters in blobtrack.hpp and blobtrackingauto.cpp...

Thank a lot for any help.

image description