Estimation of Local Image Orientation
A number of methods have been proposed for computing or estimating an orientation representation from image data. These include
- Quadrature filter based methods
- The structure tensor
- Using a local polynomial approximation
- The Energy tensor
- The Boundary tensor
The first approach can be used both for the double angle representation (only 2D images) and the tensor representation, and the other methods compute a tensor representation of local orientation.
Read more about this topic: Orientation (computer Vision)
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