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9
Chapter 1 Overview
Recommended Flight Conditions
The appropriate time to execute a flight differs
depending on the area and season. Execute flights
during times and weather conditions that fulfill the
following requirements.
Time of day
Execute a flight during a time of day when the
sunlight angle of incidence is 30° or higher in
relation to the sensor unit.
Light sensor
(White upper section)
Sunlight incident angle
of 30° or more
Cross-section view of sensor unit
Weather
ˎ Execute a flight during clear, slightly cloudy,
ˎ
and cloudy weather conditions when the
illumination is at 15,000 lux or higher.
Clear weather
100,000 lux
Slightly cloudy
Available
30,000 lux
range of
use
Cloudy
15,000 lux
Sundown
No
100 lux
ˎ Make sure to execute flights in environments
ˎ
that do not have a mix of clear and cloudy
weather conditions in the same flight area.
If these conditions are mixed, later image
processing may not be applied correctly.
ˎ Flights are not possible in rainy weather.
ˎ
Wind speed
Wind speed in the air: within 7 m/s
Shooting objects
Avoid photographing the following. Later
image processing may not be applied correctly
otherwise.
ˎ Multiple mixed vegetation types
ˎ
ˎ White objects (flowers, soil, etc.)
ˎ
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