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Recent content by TAZimmer

  1. T

    Phantom 4 pro and gravel pile mapping

    Yeah, we always make sure at least one GCP is on top of each stockpile. We also make sure we have a few validation points registered as well along the slopes / top of a stockpile. We use a Spectrum RTK system to survey in the GCPs and validation points, so really it doesn't take very long to...
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    Phantom 4 pro and gravel pile mapping

    We routinely map aggregate piles and compute volumes, for both our provincial government as well as local municipalities. We use a P4 Pro, but we've found we definitely need a set of GCPs to meet the accuracy requirements of most of our clients. The GCPs are tied in using RTK with the...
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    Using the DJI Spark for mapping

    Excellent. Thanks for the clarification. I'm going to try and run a small grid over one of our test areas. Comparison test between my Spark and one of our Phantom 4 Pros, see how much of a difference there will be. Should be interesting.
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    Mapping is my next area of interest

    We use both Pix4D Desktop and AgiSoft PhotoScan Pro; as others have said you can't beat them for quality of product, but the price of either one is pretty steep. Nice thing about Pix4D is you can pay for it monthly (still not cheap). I've also used PrecisionMapper. Processing is online so a...
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    Using the DJI Spark for mapping

    I'm definitely interested in seeing how your experiment with the Spark turns out. Like you we've been running Phantom 4 Pros and RTK ground control to generate our orthomosaics. But a P4P can be just too darn bulky at times, so I've also been thinking about how useful it would be to for our...
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    Greetings from Saskatchewan

    Hi Everyone. Hope everyone's having a good start to 2018. My name is Troy Zimmer, I'm a Geographer with a consulting company up here in Regina, Saskatchewan, called J.D. Mollard and Associates (2010) Limited. Our company specializes in the analysis and interpretation of aerial and satellite...