R Martin

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R Martin last won the day on April 29

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About R Martin

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  1. Welcome to the forum and congrats on passing your Part 107.
  2. Welcome to the forum @ronnel
  3. Not my area of specialization. I have no idea.
  4. Yes, generally the striping on a highway is what is being used.
  5. Unless I have missed out on a new update to technology in the UAS market, no. We generally use software or an app to program a flight plan for autonomous flight. I know some of the driving UVs are using pattern recognition to maintain a lane on a highway but I am not sure that UAVs have reached that stage yet.
  6. Welcome to the forum Davion.
  7. Reading a sectional chart is about 50% or better of the test. If you can read a sectional and know the law you will pass.
  8. I quote from the course, "Class C airspace is generally airspace from the surface to 4,000 feet above the airport elevation (AGL) (charted in MSL) surrounding those airports ..." (review the "Know Your FAA Airspace" lecture) Confusing? Yes. But always think in MSL unless specifically noted on a chart. This will be on the test in one form or another (hint hint)
  9. No @Up Sonder, I'm sorry but I don't know. The initial work was actually completed with a LiDaR unit mounted on the back of pickup trucks that rode the rails. Using UAVs is a new one on me as well.
  10. At the last telling, BNSF was creating a 3D point cloud of the entire rail line. That has been a few years back but the scope of the job was such that i bet it will be running at least a few more years until it is complete.
  11. Like Steve, I have tested Pix4D but also added Correlator3D UAV as well. In addition to Steve's comments above, Pix4D seemed to be relying on the CPU more so than the GPU for processing. It's main requirement was OpenGL support. Processing time was slower vs Correlator3D. If it crashed, (and it did crash due to operator error a few times (me), you had to start over. Total processing time for a small job (200-500ish images) runs about four to five hours on our graphics workstation. Correlator3D processed jobs of the same size faster. Again though, a crash means you start from scratch again. Additionally, Correlator3D requires both OpenGL and OpenCL support for the GPU and CPU. Also, Correlator3D had fewer options as far as coordinate systems that it was able to handle (NAD 1983 (2011) FIPS 4202 was not one of the options). Both recognized our camera without any additional input. Both offered decently high resolution point clouds and meshes. Both offered cloud processing. Correlator3D is the better value with a perpetual license and maintenance agreement over a five year life cycle; would run $10,115.00 (this price also includes an AMD FirePro W7100 GPU that is OpenCL compliant. You could also upgrade to the W9100 and still beat Pix4D price). By comparison, Pix4D would run $12,180.00 for the same license and maintenance agreement. Unfortunately, without the option to export the job in the coordinate system that is commonly in use here, we had to ultimately go with Pix4D.
  12. BNSF is currently (as of the last I heard) digitizing their entire rail network with LiDaR to create an automated failsafe in case the engineer is incapacitated. This may or may not be what the UAS is used for.
  13. With the proper flight planning and an adequate number of trained observers anything is possible. The shots could be taken in the greenspace area between the walkways which would allow you to avoid flying over people. Even airspace concerns could be addressed with enough time in the planning phase but we are talking months ahead of time. For a large event, that should be entirely possible.
  14. Don't forget county courthouses. I cannot speak for the rest of the country but each Texas county seat has a courthouse built before there was dirt and the people of that county are very proud of it. A full 3D workup of a small city block goes a long way in promoting your business.
  15. At least keep the props from being blasted off.....