Abstract
We present a general approach to the computation of adaptive tri-directional operators for use on hexagonal pixel-based images, based on the spiral architecture. We show that the use of Gaussian basis functions within the finite element method provides a framework for a systematic design procedure for operators that are adaptive to spiral neighbourhoods through the use of an explicit scale parameter. We evaluate the proposed operators using simulated hexagonal images and provide comparative results with the use of traditional rectangular operators.
Original language | English |
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Title of host publication | Unknown Host Publication |
Publisher | IEEE Signal Processing Society |
Pages | 1961-1964 |
Number of pages | 4 |
DOIs | |
Publication status | Published (in print/issue) - Sept 2010 |
Event | 17th IEEE International Conference on Image Processing (ICIP 2010) - Hong Kong Duration: 1 Sept 2010 → … |
Conference
Conference | 17th IEEE International Conference on Image Processing (ICIP 2010) |
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Period | 1/09/10 → … |
Keywords
- Hexagonal images
- spiral architecture
- tri-directional operators
- adaptive operators
- image gradient operators
- feature extraction