Aha, so your photogrammetric survey is equivalent to an old-fashioned chain, theodolite, and geometric calculations all done using comparative imagery, GPS, and geometric calculations? How precise does your pole length need to be to provide precise enough comparisons?
This system could also make use of existing photographs from sources such as Panoramio. I would be interested in the software algorithms you are using since we sometimes portray adversaries who use Google Earth and Panoramio for their planning. The knowbeforeyoufly site is a good source of information for drone users, particularly recreational. I'm afraid that the toothpaste may be out of the tube when it comes to privacy in pointcloud data. There's so much data out there already that can be mined, I'm afraid that any future collections with privacy protections would become irrelevant except for new material. To be successful, the privacy effort would need to somehow include legacy in an easy to implement manner. All of this, so far, is about imagery, either photographic or lidar. I would like to do war-flying, in the sense of detecting and tracking RF from a system/site under assessment. I'm still working on how we could do that, especially since we have to get a COA for each specific use under the current rules. We currently use an open-source tool that creates a kml of signal strength for display on Google Earth, but the "height" of the resulting polygons is actually just a measure of signal strength at the ground level where our radio received the signal. If we could get that signal strength in three dimensions, we would have a much better chance of isolating the source. Isolating the source of a signal is a basic problem with wireless red-teaming. We have done WiFi surveys of a target facility, discovered what appeared to be a computer advertising for an ad-hoc network, but in an urban environment it's almost impossible to be sure of the location. The real bad guys would have no compunction about cracking all the networks they see until they find the one they want, but we must avoid collateral damage. If we are doing a no-notice, non-cooperative engagement, we can't easily walk around with attenuators in our antenna connection until we isolate the source in the target site. I wonder if a 3D signal map would constitute a point cloud? Ray Parks Consilient Heuristician/IDART Old-Timer V: 505-844-4024 M: 505-238-9359 P: 505-951-6084 NIPR: rcpa...@sandia.gov<mailto:rcpa...@sandia.gov> SIPR: rcpar...@sandia.doe.sgov.gov<mailto:rcpar...@sandia.doe.sgov.gov> (send NIPR reminder) JWICS: dopa...@doe.ic.gov<mailto:dopa...@doe.ic.gov> (send NIPR reminder) On Jun 16, 2015, at 11:51 AM, Stephen Guerin wrote: Good and important questions, Ray. Our bit was doing a ground-based photogrammetric survey using mobile phones and a 24' painter extension poles. The use was for research in methods of collecting structure and activities data for Urban Studies. eg, does photogrammetry from the ground approximate LiDAR measurements of building heights in areas of the world where LIDAR coverage is sparse. And can we capture and monitor in real time. While we were surveying, a member of the SFI and hobbyist/recreational drone user noticed our work and volunteered drone imagery. Imagery was not sold nor contracted for and permission was granted to fly after hours when staff and students were gone. Of course I am not an authority in the legal issues around drones but a resource that addresses this is http://knowbeforeyoufly.org/. It explains how public entities and commercial user have more restrictions than recreational user. At a larger scale, we think there is a strong need to have privacy embedded in pointcloud data - very similar to HIPAA regulations intent that looks for aggregate benefit while protecting individual privacy. We think there's distributed ways of aggregating individual's pointcloud data without using centralized servers while using agents to mediate questions asked of the data. Somewhat inspiring to us is the idea of "Souveillance" instead of "Surveillance": https://en.wikipedia.org/wiki/Sousveillance We'd like to talk with anyone that interested in this space and applications. -S --- -. . ..-. .. ... .... - .-- --- ..-. .. ... .... stephen.gue...@redfish.com<mailto:stephen.gue...@redfish.com> 1600 Lena St #D1, Santa Fe, NM 87505 office: (505) 995-0206 mobile: (505) 577-5828 tw: @redfishgroup skype: redfishgroup redfish.com<http://redfish.com/> | simtable.com<http://simtable.com/> On Tue, Jun 16, 2015 at 9:44 AM, Parks, Raymond <rcpa...@sandia.gov<mailto:rcpa...@sandia.gov>> wrote: So, if we did this as part of an engagement, we would need permission from the owner of the property, possibly need permission from owners of adjacent properties that might be filmed, and the property owner would need to post notices that video surveillance is taking place to warn all staff and visitors. These rules come down to us from DOE and from imposing them on ourselves. Do similiar privacy/authority rules apply to you? Ray Parks Consilient Heuristician/IDART Old-Timer V: 505-844-4024<tel:505-844-4024> M: 505-238-9359<tel:505-238-9359> P: 505-951-6084<tel:505-951-6084> NIPR: rcpa...@sandia.gov<mailto:rcpa...@sandia.gov> SIPR: rcpar...@sandia.doe.sgov.gov<mailto:rcpar...@sandia.doe.sgov.gov> (send NIPR reminder) JWICS: dopa...@doe.ic.gov<mailto:dopa...@doe.ic.gov> (send NIPR reminder) On Jun 15, 2015, at 9:01 PM, Stephen Guerin wrote: Here's some 3D photogrammetry results from Friday's drone flyover of SFI. <image.png> https://www.youtube.com/watch?v=-YxfIMCDuHA We're working on efficient pipelines for recovering and sharing realtime pointclouds with mobile phones. -S --- -. . ..-. .. ... .... - .-- --- ..-. .. ... .... stephen.gue...@redfish.com<mailto:stephen.gue...@redfish.com> 1600 Lena St #D1, Santa Fe, NM 87505 office: (505) 995-0206<tel:%28505%29%20995-0206> mobile: (505) 577-5828<tel:%28505%29%20577-5828> tw: @redfishgroup skype: redfishgroup redfish.com<http://redfish.com/> | simtable.com<http://simtable.com/> ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com
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