Vertical Inacuracy

PIX4Dmapper PIX4Dmapper Questions/Troubleshooting
1

Hi Guys

Can you advise as to what the Altitude of the 70+ m range relates to on the Image Properties Table below please? The Pix4D default coord system is WGS84 / EGM96. My drone is an Inspire 2 standard precision SUA. Not sure if the Altitude is barometric height of the flight (flight elevation was set to 60m in Pix4D Capture) or actual EGM96 geoid height.

Thanks, Malcolm

2

Hi Malcolm,

The value in the “Altitude [m]” column is detected in the EXIF of the images and, in most cases, present the absolute altitude (e.g. above EGM96) and not the height of the flight above the take-off point.

However, we noticed some issues with DJI geotags that do not always represent the correct values. I would recommend checking the DJI geotags problem community post for more information and workarounds. 

Best,