Recent content by YouWayne

But I don't have to compute cosφ because they are already computed and saved in a database to compare with the polygons in the picture. I really only have to compute cosψ. And to make sure the hole polygon is similar I have to compute all of cosψ. And doing that everytime is not as good as...

With 3D-Vector I meant your Ci-Vectors not Qi. But I still don't get your point :-/ "It is as if you have two rulers with one moving along the other that stops every time you have a coincidence, in which case you check, whether the rest is equal, too. Do not compare each entry with each other...

So the best way would be to store an Array of Integers (-1 to 1) for the templates. Now when I have an image, i filter out my polygon and make 30 3D-Vectors out if it. If I found an angle, say cosφ1 = cosψ5 and cosφ2 = cosψ6 and so on, it's the same shape. But how does that "pimp" the original...

Thank you for your reply, so if I have 30 points, i can make 30 vectors, right? Then, when I want to form the vector Ci , do I have 30 of those 3-dimensional vectors which I can store as one template, right? And why in that form, why isn't the square root in it? Couldn't i just store the angles...

I'm working on a school project and my goal is to recognize objects. I started with taking pictures, applying various filters and doing boundary tracing. Fourier descriptors are to high for me, so I started approximating polygons from my List of Points. Now I have to match those polygons, which...