Cambio de Altitud de Vuelo - ¿DTM/DSM muestra el punto más alto en el centro de la imagen?

Question

¡Hola! Realicé este levantamiento a 197 pies con un solapamiento frontal y lateral del 80%. Este es el DTM que obtengo después de ajustar la altitud usando la superficie de elevación. También noto que las líneas del plan de vuelo no se desplazan con las imágenes, ¿alguien sabe qué puedo hacer para corregir mi DTM/DSM o qué he hecho mal? <\/P> <\/span><\/P><\/span><\/P>¡Agradezco cualquier ayuda que puedan brindarme! ¡Gracias de antemano! <\/P> <\/P>

Cody Benkelman · Answer

Hi Sara

Sorry for the delay, I just found your post.  It's a known issue that many drones report incorrect height values.  This is most easily and accurately corrected by using ground control.  I see two green crosses, so it appears you DID use control?  (I know you sent me private message about control points as well)  Are you sure they were referenced to orthometric height, not ellipsoidal height?

I'd also recommend at least one additional point near the center - long narrow projects sometimes curve upward or downward and I see yours did that - adding a 3rd point should make it flatten out

Cody B>

Anonymous User · Answer

I am not a Drone2Map user, but I'd like to hear from other's experience.

What is the problem you're encountering here? It's not clear from your post what is going on with Drone2Map.