Dilated Filters for Edge-Detection Algorithms

edge detection of potential field anomalies using local phase filters

potential fields are due to complex distribution of sources related to susceptibility and mass density variations for magnetic and gravity field respectively. in researching the lateral heterogeneous of different geological bodies, in particular their edge location potential field has some advantages. we mainly refer to linear features such as fault, folding axis, dyke, trend and border of the ...

precise edge detection of gravity anomalies by tilt angle filters

measurements of the tilt angle of potential fields can be a useful aid to their interpretation. there are several varieties of the methods in use, such as tilt angle, and the derivative of tilt angle. tilt angle filters are used for exact edge detection of the rectangular bodies artificially by writing a matlab code. the gravity effects of these models are computed by standard algorithms. the e...

Design Algorithms for Doppler MTI and Filters (Using Chebyshev Approximation)

Edge Detection Models Based on Gabor Filters

In this paper, the performance of a Gabor odd filterbased edge detector is investigated using the measures proposed b y Canny. Based on this performance analysis a design criterion for 1-D Gabor filter-based edge detector is derived. It is shown that this design criterion holds good for a 2-0 Gabor filter-based edge detector as well. Experimental results are presented to demonstrate the signifi...

Line and Edge Detection by Symmetry Filters

Sequential (search) methods for edge and line detection and parallel (filter) methods for edge detection are wellknown. Filter methods for line detection are generally based on direction-by-direction filtering: each filter is parallel, but only special hardware architectures allow filtering in different directions simultaneously. We present a class of isotropic edge and line detection filters t...