Image capture for shading analysis requires flights to provide four types of images:
- Outward oblique
Before you begin, confirm with the customer that trees have sufficient foliage for image capture and analysis.
Equipment & settings
Drone: Capture images with a multi-copter UAS with gimbal mounted camera. A DJI Phantom 4 Pro is the preferred drone for this purpose.
High-resolution camera: 5472×3648 pixel (20 MP) resolution minimum as provided by, for example, the Phantom 4 Pro or Zenmuse X4S cameras.
All images should be captured in RGB format.
Resolution & altitude:
2 cm/pixel (.8 in/px)
Approximate altitude: 91.4 m (400 feet) above ground level (AGL)
Nadir (straight down)
-90 degrees from horizon
75% front overlap, 75% side overlap
The flight path should cover the entire site including neighboring tree line with a grid flight pattern
Altitude: Approx. altitude should be 250 ft above the tree-line
Approx. 30 degrees facing toward the tree line and away from the center of the site (NO HORIZON SHOULD BE VISIBLE)
Do not include sky in view or resulting image
Flight should be flown in a circle around entire perimeter of array and 50 ft inward from the bordering obstructions
Altitude: Approx. 100 ft above treeline
-15.0 to -45.0 degrees from horizon
Updated about a month ago