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| 2015-10-28 06:12:36 -0600 | commented answer | Detect flying hornets Thanks I'll follow this method : http://answers.opencv.org/question/22... |
| 2015-10-28 02:27:15 -0600 | commented answer | Detect flying hornets I just started reading a very good book "OpenCV Essentials" speaking detection and tracking (including background subtraction). It is not necessary to track because hornets remain hovering few seconds. So just count at time t. Over time, then averages the counts. In addition, the camera being directed towards one hive, it can not track a particular hornet as he flies from one hive to another. Can you tell me if the detection by "blobs" is approximately an average per color detection? There are black bees in my hives but there are also yellow bee races. There is a risk of confusion. In fact, the Asian hornet is distinguished from the bee in morphology (size, oranges rings, large yellow legs) and behavior (hovering in front of the hive) Another question: is it necessary to use a zoom lens? |
| 2015-10-28 00:22:41 -0600 | received badge | ● Enthusiast |
| 2015-10-27 13:02:54 -0600 | commented question | Detect flying hornets Hi trhdrk, Sony NEX-5N has zoom X 10 Do you think it is possible to detect hornets without the zoom ? Raymond |
| 2015-10-27 09:52:02 -0600 | received badge | ● Citizen Patrol (source) |
| 2015-10-27 08:41:02 -0600 | commented question | Detect flying hornets Hornets make stationary flight so we take good photos. Most of the time, bees are flying too fast for a snapshot. |
| 2015-10-27 08:35:34 -0600 | commented answer | Detect flying hornets sorry, Photos are too bigs and I changed the size |
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| 2015-10-27 08:30:08 -0600 | received badge | ● Editor (source) |
| 2015-10-27 08:22:55 -0600 | commented question | Detect flying hornets Hi thdrksdfthmn , I tested with a Sony NEX-5N HD 1920X1080 camera. I have not yet worked with the Raspberry camera that is also full HD 1080p Photos with zoom :C:\fakepath\DSC00675.JPG C:\fakepath\DSC00695.JPG Photos without zoom : C:\fakepath\DSC00734.JPG Raymond |
| 2015-10-27 06:45:43 -0600 | asked a question | Detect flying hornets Hi, With a camera, I want to film the Asian hornets (Vespa velutina) hovering in front of the hives. They expect the bees returning or leaving to catch and eat them. I do not want to track them but only detect and count them. So I filmed hornets and took many pictures from different angles. There are many detection methods with openCV and I'm a little confused. Secondly, I want to run the program on a Raspberry Pi 2. Can you advise me? Thank you I tested with a Sony NEX-5N HD 1920X1080 camera. I have not yet worked with the Raspberry camera that is also full HD 1080p Photos with zoom :C:\fakepath\DSC00675.JPG C:\fakepath\DSC00695.JPG Photos without zoom : C:\fakepath\DSC00734.JPG Photo o f a flying bee : C:\fakepath\DSC00749.JPG |
