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| 2012-07-23 02:38:20 -0600 | commented answer | FREAK vs SURF Actually I'm seeing same O(1) for very different image sizes (640x480 and 80x60 give same timing for extraction) |
| 2012-07-23 02:17:31 -0600 | answered a question | FREAK vs SURF Hi, I'm testing FREAK performance too, on the 2.4.2 package. It seems extraction time is O(1) + O(number of descriptors), and that O(1) is pretty significant in my case. I get roughly the same time for 10 descriptors and 70 descriptors. So the bulk of time is in that O(1). I suspect this is due to building the integral image, but not sure. Anyone encounter this? Any remedee? Thanks! Oded |
| 2012-07-23 02:16:30 -0600 | answered a question | FREAK vs SURF Hi, I'm testing FREAK performance too, on the 2.4.2 package. It seems extraction time is O(1) + O(number of descriptors), and that O(1) is pretty significant in my case. I get roughly the same time for 10 descriptors and 70 descriptors. So the bulk of time is in that O(1). I suspect this is due to building the integral image, but not sure. Anyone encounter this? Any remedee? Thanks! Oded |