|Affiliations:||Mathematical Institute of the Serbian Academy of Sciences and Arts||Title:||An alternative approach to computing shape orientation with an application to compound shapes||Journal:||International Journal of Computer Vision||Volume:||81||Issue:||2||First page:||138||Last page:||154||Issue Date:||1-Feb-2009||Rank:||M21a||ISSN:||0920-5691||DOI:||10.1007/s11263-008-0149-1||Abstract:||
We consider the method that computes the shape orientation as the direction α that maximises the integral of the length of projections, taken to the power of 2N, of all the straight line segments whose end points belong to the shape, to a line that has the slope α. We show that for N=1 such a definition of shape orientation is consistent with the shape orientation defined by the axis of the least second moment of inertia. For N>1 this is not the case, and consequently our new method can produce different results. As an additional benefit our approach leads to a new method for computation of the orientation of compound objects.
|Keywords:||Early vision | Image processing | Orientation | Shape||Publisher:||Springer Link|
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