Design of two-dimensional directional filters |
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Authors: | Anamitra Makur VLNarayana Murthy |
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Affiliation: | aDepartment of Electrical Communication Engineering, Indian Institute of Science, Bangalore, India 560012;bNcore Technology Pvt. Ltd., Bangalore, India |
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Abstract: | A directional filter has a passband extending fully along a straight line passing through the origin. In its original form the transformation technique, a powerful tool for designing two-dimensional FIR filters, is not useful to design such a filter. In this communication we suggest a few analytical and optimisation-based methods to design directional filters using the transformation technique. The superiority of the proposed methods over existing techniques is demonstrated. |
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Keywords: | Directional filter Radial filter Two-dimensional filter |
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