Few things to set correctly to get high quality surveying results
On this surveying example Sony RX0 have been used on DoneePLANE
To get the best mapping results from drone few things need to be done correctly.
Camera has to be isolated from vibration that comes from motors on drone. On plane drones or UAVs this vibration level is lower comparing to quadcopters.
First thing to do before mapping is to set up the camera parameters.
To set camera parameters manually need to set to manual mode.
Shutter speed: to remove blure from photo shutter speed should be setted for higer value. 1200–1600 is recommended. Higer the shutter speed reduce image quality.
if there is blure in the image increase shutter speed
ISO: lower the ISO higer image quality. ISO between 150–300 is recommended.
if there is no blure but image quality is low, reduce ISO.
Focus: Recommended to set the focus manually on the ground before flight. Direct camera to an object which is far, and slightly increase the focus, you will see on camera screen that image sharpnes changes by changing the value.Set the image sharpness at higest.
White balance: recommended to set to auto.
On surveying mission Sidelap, Overlap, Buffer have to be set higer to get better quality surveying result.
First set the RESOLUTION which you would like to get for your surveying project. When you change resolution it changes flight altitude and also effect the coverage in single flight.
Overlap: 70%
This will increase the number of photos taken during each flight line.Camera sould be capable to capture faster.
Sidelap: recommended 70%
Flying with higer sidelap between each lines of the flight is a way to get more matches in the imagery, but it also reduce the coverage in single flight
Buffer: 12%
Buffer increases the flight plane to get more images from borders . It will improve the quality of map
