On Mon, May 17, 2010 at 6:47 PM, Olin Lathrop <olin_piclist@embedinc.com> w=
rote:
> Marcel Birthelmer wrote:
>> One way of detecting symmetric objects is convolution.
>
> There is no need for objects to be symmetric to detect their signature wi=
th
> convolution. =A0It does, however, alleviate orientation issues.
>
>

If you don't know the shape of the object, but you do know that it's
symmetric (which, granted, is not the case in this scenario), you can
still use convolution. This is useful for example when detecting
street signs in automotive vision applications, since pretty much all
signs are symmetric in shape.

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