Definition of the images

What is the definition of the images captured by Parrot Sequoia+?

Each monochrome sensor has a 1.2 MP resolution in synchronized narrow-band. Each image is 1280x960 pixels. In addition, the RGB camera captures 16MP with a resolution of 4608x3456 pixels.

 

 

What is the ground resolution of the images taken by Parrot Sequoia+?

The resolution at ground level of the RGB sensor and the multispectral sensor depends on the flying height.  Go to the table to work out the flying height according to the required resolution.

 

 

Ground resolution (cm/pixel)

Height

Monochrome

RGB

10

0.9

0.3

20

1.9

0.5

30

2.8

0.8

40

3.8

1.1

50

4.7

1.4

60

5.7

1.6

70

6.6

1.9

80

7.5

2.2

90

8.5

2.4

100

9.4

2.7

110

10.4

2.9

120

11.3

3.3

130

12.2

3.5

140

13.2

3.7

150

14.1

4.1

 

 

 

What is the wavelength and bandwidth of each sensor?





 

Green

  • Wave length: 550nm

  • Bandwidth: 40nm

  • Definition: 1.2 MP

Red

  • Wave length: 660nm

  • Bandwidth: 40nm

  • Definition: 1.2 MP

Red edge

  • Wave length: 735nm

  • Bandwidth: 10nm

  • Definition: 1.2 MP

Near Infrared

  • Wave length: 790nm

  • Bandwidth: 40nm

  • Definition: 1.2 MP

RGB

  • Definition: 16 MP

 

 

 

Is there an Audio/Video outlet on the camera?

No, there is no audio/video outlet, but you can transfer your files via USB or SD card.

 

 

How to obtain an optimal recovery rate ?

For the best possible recovery rate during flights at a certain altitude, you must allow some time to pass between the captures. The RGB sensor can capture shots with a minimum delay of 1 second between each photo. Multispectral sensors can capture shots with a minimum time of 0.5 seconds between each photo.

To find out the minimum time required depending on the flight height, refer to the following chart and diagram.

 

 

Time between captures according to speed

Height (m)

5 m/s

10 m/s

13 m/s

20 m/s

30

1.1

0.5

0.4

0.3

40

1.4

0.7

0.5

0.4

50

1.8

0.9

0.7

0.5

60

2.2

1.1

0.8

0.6

70

2.6

1.3

1.0

0.7

80

2.9

1.4

1.1

0.74

90

3.3

1.6

1.2

0.8

100

3.7

1.8

1.4

0.9

110

4.1

2.1

1.6

1.0

120

4.4

2.2

1.7

1.1

130

4.8

2.4

1.9

1.2

140

5.2

2.6

2.0

1.3

150

5.6

2.8

2.2

1.4

 

 

Key:

  • In red: the multispectral sensor and the RGB sensor cannot be activated.

  • In blue: the RGB sensor cannot be activated.

  • In green: all the sensors can be triggered.

 

 

What is the distance between two captures for optimal coverage?

 

For the best recovery rate during flights at a certain altitude, you must allow a distance between captures. Refer to the following table for more information.

 

 

 

 

 

 

Distance between captures (m)

Height (m)

70% recovery

75% recovery

80% recovery

85% recovery

30

8.4

7.0

5.6

4.2

40

11.2

9.3

7.5

5.6

50

14.0

11.7

9.3

7.0

60

16.8

14.0

11.2

8.4

70

19.6

16.4

13.1

9.8

80

22.4

18.7

15.0

11.2

90

25.2

21.0

16.8

12.6

100

28.0

23.4

18.7

14.0

110

30.8

25.7

20.6

15.4

120

33.7

28.0

22.4

16.8

130

36.5

30.4

24.3

18.2

140

39.3

32.7

26.2

19.6

150

42.1

35.1

28.0

21.0

 

 

 

 

 

Update : 15/10/2018
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