pteryx mapping secrets

8/11/2019 Pteryx Mapping Secrets

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Page 2/39 Secrets of photomapping www.pteryx.eu

Make things as simple as possible, but not simplerA. Einstein

Title page: 4.5km2ortophotomap at 10cm/pix created with

All rights reserved. No part of this book may be reproduced ortransmitted in any form by any means, electronic or mechanical,including photocopying, recording or by any information storageor retrieval system without permission from the author, exceptfor the inclusion of brief quotations in a review.

Copyright 2011 by Krzysztof Bosak


3/39


G I

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4/39


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5/39


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6/39


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122 (400) 4.3 (1.7) 157 (515)

140 (460) 5 (2.0) 180 (590)

200 (660) 7.1 (2.8) 257 (843)

280 (920) 10 (3.9) 360 (1181)

420 (1380) 15 (5.9) 540 (1771)

560 (1840) 20 (7.9) 720 (2362)

L ,

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14=

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). . A

14MPI 10MPI .

Megapixels vs ground resolution gain

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

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5 6 7 8 9 10 11 12 13 14 15 16

MPIX

Resolutionrelativeto10MPIX


7/39


,

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.

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WVTkmSFLIGHTSTRAIGHT

=

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.

60%

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8/39


: 12=100=247 =0.386 =10764

A 60%, 50/ , 2 ,

:

, 2 , 60%

0

10

20

30

40

50

60

70

80

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

100 AG

122 AG

140 AG

280 AG

420 AG

560 AG

A 60%, 50/ , 1

80% , 50/ , 2,

( 1 ):

,

1 , 60%

2 , 80%

0

10

20

30

40

50

60

70

80

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

2

100 AG

122 AG

140 AG

280 AG

420 AG

560 AG


9/39


I P .

Map surface vs side overla p, relative to 60% overlap

0.0%

50.0%

100.0%

150.0%

200.0%

250.0%

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Side overlap

Relativemapsurface

F ,

.

Flight duration vs side overlap, rel ative to 60% overlap

0%

50%

100%

150%

200%

250%

300%

350%

400%

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Side overlap

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10/39


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11/39


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12/39


A

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Along photo overlap vs altitude,3.5s shooting rate, 50km/h

40%

50%

60%

70%

80%

90%

100%

100 200 300 400 500 600

Altitude [m]

Alongphotooverlap[%]

Overlap w ith no wind [%]

Overlap w ith 2m/s w ind [%]




Along photo overlap vs altitude,

3.5s shooting rate, 65km/h

40%

50%

60%

70%

80%

90%

100%

100 200 300 400 500 600

Altitude [m]

Alongphotooverlap[%]

Overlap w ith no w ind [%]






13/39


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14/39


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. DEM .

:

RESULTS Bandwidth --> 1Mbps 1Mbps 10Mbps 20Mbps

Ortophoto only kbps 1024 5120 10240 20480

kBps 128 640 1280 2560

Flight time [min] Source photo count Time[h] Time[h] Time[h] Time[h]

30 515 33.1 8.3 2.1 0.1

40 686 43.5 10.9 2.7 0.1

50 858 53.9 13.5 3.4 0.1

60 1029 64.2 16.1 4.0 0.2

70 1200 74.6 18.6 4.7 0.2

80 1372 84.9 21.2 5.3 0.2

90 1543 95.3 23.8 6.0 0.2

100 1715 105.6 26.4 6.6 0.3

110 1886 116.0 29.0 7.2 0.3

120 2058 126.3 31.6 7.9 0.3

RESULTS Bandwidth --> 1Mbps 1Mbps 10Mbps 20Mbps

Ortophoto and DEM kbps 1024 5120 10240 20480

kBps 128 640 1280 2560

Flight time [min] Source photo count Time[h] Time[h] Time[h] Time[h]

30 515 66.3 16.6 4.1 0.2

40 686 87.0 21.7 5.4 0.2

50 858 107.7 26.9 6.7 0.3

60 1029 128.4 32.1 8.0 0.3

70 1200 149.1 37.3 9.3 0.4

80 1372 169.8 42.5 10.6 0.4

90 1543 190.6 47.6 11.9 0.5

100 1715 211.3 52.8 13.2 0.5

110 1886 232.0 58.0 14.5 0.6

120 2058 252.7 63.2 15.8 0.6

/ ,

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15/39


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16/39


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17/39


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18/39


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19/39


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20/39


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0

500

1000

1500

2000

2500

3000

3500

4000

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5000

1 2 3 4 5A 3 (4 )

A

B

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N cells Battery capaci ty [Ah] Empty weight[g] Battery weight[g] Payload[g] AUW[g]

1 5 2750 383 450 3583

2 10 2750 575 450 3775

3 15 2750 1150 450 4350

4 20 2750 1533 450 4733 :

,

0

500

1000

1500

2000

2500

3000

35004000

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1 2 3 4 5A 3 (4 )

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1 5 2750 383 1867 5000

2 10 2750 575 1675 5000

3 15 2750 1150 1100 50004 20 2750 1533 717 5000


21/39


E :

E , 450

0

10

20

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60

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100

110

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0

20

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450 550 650 750 850 950 1050 1 150 1250 1 350 1 450 1550 1650 1750 1850

F

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22/39


I , .

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23/39


H

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24/39


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25/39


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26/39


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27/39


K

240

416 511

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0

500

1000

1500

2000

2500

3000

3500

4000

4500

KKJ

A 2.8 3.6 42/

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28/39


29/39


, ,

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8 .

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ECEIG ( =16 )

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16K 16

%

1% 2%

3% 4% 5% 6% 7% 8% 9% 10% 20% 30% 40% 50%

3% ,

60% (16 ) 92%

15 .

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60%. I 97%

, 5 .

.

CCI:

.


30/39


, 6

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0.00%

10.00%

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30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

1 2 3 4 5 6K 6

1%

2% 3% 4% 5% 6% 7% 8% 9% 10% 20% 30% 40% 50%

L 3 , ,

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67% .

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31/39


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32/39


I ,

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33/39


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34/39


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35/39


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36/39


PC .

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37/39


. .

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38/39


N. O

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39/39

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