Alexandre Guimar=E3es wrote:
>=20
> Hi,
>=20
> > I have done 'camera tricks' but I used a PIC only once (to interface =
the
> > PC that was doing the tricks with the camera controls).
> >
> > I think that something very crude can be done but by the time you wan=
t to
> > determine part orientation you start to need MIPS and room. If the pa=
rt
> > orientation is not a problem (already aligned) then it might work.
>=20
>     Do you have references or source code for the position and orientat=
ion
> determination ?? I have been looking at it since Roman gave that idea b=
ut
> have not been able to find much. Seem like everyone is trying to do fac=
e
> recognition nowadays and are not working with rectangles anymore :-(


Relax with the angular orientation stuff! ;o)
It's very easy, as is finding the center of mass.
The rectangle (SMD part on camera) has 90 degree
sides, and only one side needs to be analysed
to give orientation. With a 0805 etc sized SMD
part, orientation is not critical and 64 rotary
positions are acceptable. So you only need to
be able to identify 64/2 =3D 32 actual orientations,
probably by a simple lookup table.

For centre of mass you average the positions of
all the highest pixels, and lowest pixels, then
average them together. A few additions and
subtractions. Besides being a TV technician I did
a couple years as a 2d game graphics programmer. :o)
-Roman

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