Multi-scale keypoint hierarchy for Focus-of-Attention and object detection
Hypercolumns in area V1 contain frequency- and orientation-selective simple and complex cells for line (bar) and edge coding, plus end-stopped cells for key- point (vertex) detection. A single-scale (single-frequency) mathematical model of single and double end-stopped cells on the basis of Gabor fi...
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| Format: | article |
| Language: | eng |
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2009
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| Online Access: | http://hdl.handle.net/10400.1/116 |
| Country: | Portugal |
| Oai: | oai:sapientia.ualg.pt:10400.1/116 |
| Summary: | Hypercolumns in area V1 contain frequency- and orientation-selective simple and complex cells for line (bar) and edge coding, plus end-stopped cells for key- point (vertex) detection. A single-scale (single-frequency) mathematical model of single and double end-stopped cells on the basis of Gabor filter responses was developed by Heitger et al. (1992 Vision Research 32 963-981). We developed an improved model by stabilising keypoint detection over neighbouring micro- scales. |
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