Timeline for Are SURF descriptors normalized with respect to orientation?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 17, 2013 at 12:22 | vote | accept | Alex | ||
| Jun 16, 2013 at 10:20 | comment | added | Zaphod | Ah I see. AFAIK, the SURF descriptor is computed after rotating the reference coordinate system to match the keypoint's orientation. So no normalisation is required after computation of the descriptor. | |
| Jun 15, 2013 at 7:58 | comment | added | Alex | Thanks for your answer, I know that it is invariant to rotation, I was however asking about the actual descriptors, weather or not the actual descriptors are normalized with respect to orientation. In a SIFT descriptor, once it has the key point, it will find the strongest gradient angle, then normalize the image patch about that angle, then get the descriptor. But with SURF does it simply get the angle and describe it for that angle? I could just be missing something obvious.. | |
| Jun 14, 2013 at 17:08 | history | migrated | from stackoverflow.com (revisions) | ||
| Jun 14, 2013 at 10:33 | history | answered | Zaphod | CC BY-SA 3.0 |