Can I Get Accurate Measurements with Previous Surveys and Scale Constraints?

Our caller, Elan from Trinidad has come up with an interesting question today. Elan is wondering if data from previous surveys and scale constraints can be used to get accurate measurements. Can Elan do away with GCP’s altogether by adopting this approach? You can also check out our entire "Drone Mapping" playlist by going here -

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Timestamps
02:06 - Today’s questions is about using measurements from a previous survey and scale constraints
03:41 - Can you build an accurate drone model without GCP’s?
05:36 - How to use the lines of a existing plot survey as a scale constraint for your drone model
06:34 - Can Elan use scale constraints from a previous survey and do away with using GCP’s?
09:39 - Is data from a traditional surveys prone to error?
12:32 - Paul shares a simple way of checking the accuracy of your existing survey data
14:28 - Check out our upcoming mapping trainings

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