Re: [Playerstage-developers] strange problem with blobfinder

[Valentino <pun...@gm...>]

i'm working in simulation. My camera is a CanonVCC4. I have noted that green
= 0 appears only for some directions between robot and green box.  For
these  directions  playerv visualize a narrow green blob (that appears and
disappears) more narrow than that i can see with camera.
is it only noise ??? Can i do something for decrease this noise ?
thanks

2006/9/18, Brian Gerkey <br...@ge...>:
>
>
> On Sep 15, 2006, at 1:10 PM, Valentino wrote:
> >
> > The problem is that blobfinder doesn't continuously  detect green
> > blob even if it's always in Field of view. Infact the printf
> > instruction in the code, prints continuously these lines:
> > GREEN Color: 255
> > GREEN Color: 255
> > GREEN Color: 255
> > GREEN Color: 0
> > GREEN Color: 0
> > GREEN Color: 0
> > GREEN Color: 255
> > GREEN Color: 255
> > GREEN Color: 0
>
> Looks like the blobfinder sometimes sees the blob and sometimes
> doesn't.  Depending on the kind of blobfinder, that's not necessarily
> surprising; it's called sensor noise.
>
> What is your vision setup (simulated or physical? what kind of
> camera, blobfinder?)
>
>         brian.
>
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