Surf Zone Mapping Using Multirotor Unmanned Aerial Vehicle Imagery

Table 1

The aircraft and sensor specification (dji.com 2016).

Category	Specification
Weight (including battery and propellers)	1216 g
Diagonal size (excluding propellers)	350 mm
Max ascent speed	5 m/s
Max descent speed	3 m/s
Max speed	16 m/s (atti mode, no wind)
Max service ceiling above sea level	6000 m (default altitude limit: 120 m above take off point)
Max flight time	Approx. 25 minutes
Operating temperature	0°c to 40°c
GPS mode	Built-in gps
Camera Sensor
Sensor	1/2.3” Effective pixels: 12 M
Lens	FOV (Field of View) 94° 20 mm (35 mm format equivalent) f/2.8
ISO Range	100-3200 (video); 100-1600 (photo)
Shutter Speed	8s -1/8000s
Image Max Size	4000×3000
Still Photography Modes	Single Shot; Burst Shooting: 3/5/7 shots; Auto Exposure Bracketing (AEB): 3/5; Bracketed Frames at 0.7EV Bias; Time-lapse
Video Recording Modes	2.7K: 2704 x1520p 24/25/30 (29.97); FHD: 1920x1080p 24/25/30; HD: 1280x720p 24/25/30/48/50/60
Max Video Bitrate	40 Mbps
Supported File Formats	FAT32 (≤ 32 GB ); exFAT (> 32 GB)
Supported SD Card Types	Micro SD Card 8 GB included
Operating Temperature	32° to 104° F (0° to 40° C)
Photo	JPEG, DNG
Video	MP4, MOV (MPEG-4 AVC/H.264)