For All 2) 131. [ 4), see REFERENCES . TABLES
EX, 1:SCALE CF THE COMPUIED WITHIN COMMENTS
N° AFRTAL D.T.M. | ŒIHD- | PLANDEIRIC R.M.S.E. us EXAMPLE 1: SCALE CF THE QDOMEUTED WITHIN | GOMENIS
QR SPACE HD (resultant vector) | N.M.A.S. N AERIAL |D.T.M. | CRIHO-| PLANIMETRIC R.M.S.E. U.S.
SURVEY (OUIFUT) | KT GROUND | ATCRID-| (902 SURVEY BOD | (resultant vector) [NMA
(INEUT) SCALE | PHOIO SCALE | «0.5 nm) (IUT) (QUIPUT) | AT GOOD | AT XHD- | (OZ
(in meters) | (in m) = PHOID ye «0.5 nm
1 n K zn 20 K 68 m 0.33 mm m | - Hungarian test reporting in meter) | (nm
SZ ? accuracy of 0.25 mn,see [1 ] 1 60K | OK | 25K | 46m 0.18 mm
s , s . yes
KATE- 50 K |1000 K 115m 0.12 mn yes |- digital hurgarian test, - - 2 60K 6 K 12.5K] 4.1 0.32 - max. enlargement .
-200) (2) r.m.s.e. obtained 0.1 mm > p Cm Ses I
2 820 K 80 K| 100 K 54 m 0.54 mm no - see [ 3] FA test: accuracy 3 45K 45K 10K 3.1 m 0.31 mm yes |- mex. enlargement poss.
TS LE mors VIE ane 4 QK|sk| 5k 37 0.15 god for BK
X ./ m .15 m yes |- very or mep
3 DA 70K | 100K 48m 0.48 qm m revision;used by GID (IK)
5 WK | OK | 2K 29m 0.4 m yes |- USS digital test
4 30K 10K | SOK 185 m 0.37 mm TD - see [ 4] r.m.s.e rage
SEOT (BAEL) obtained 0.250.338 qm 6 9k | ok} Br 3.5 m 0.14 mm yes |- very good for 25 K
in stereoplottirg. Ë map revision
5 7 DK eK 5K 2.5m 0.50 m TO
S den am (o DB onm mmi nem cx 8 IK | ox] Br | san | oum | ys |-omprevihex 6
m ou yes ¢ reportirg accuracy Of 0.2 m 9 DK | DK| 5k | 20n 0.40 m TD
6 175% IDK DK 12m 0.24 mm yes 10 DK 16K DK 3.5m 0.12 mm yes |- not very efficient
STERED-MIS 10K| 25K 11m 0.45 nm mo
7^ 175K ok! OK En SEI =z = 11 25K 25K 25K 3.0m 0.12 m yes |-æ — test for mp
ould : revision, using a GEM;
NEW SPACE 10K | 35K 11m 0.32 mm yes efficient ined i
r.m.s.e. obtained is
PROJECT AT | (BAL) raging fram 0.10-0.17
5 m PIXEL SIZE 5 .17 m
8 150K 150K| 100K 14 m 0.14 mm yes | - used in Groenland (TK 2 22.5 K|22.5K 5K 1.5m 0.31 mm yes |- mex. enlargement poss.
AERIAL FHDIO 10K| OK um 0.22 m yes |- would be Edd ?
. DR] OK 10m 0.20 m yes | - usd in Saxim 13 2K | OK | 2K 24 0.18 m yes WS digital test,
14 UK | PK |. 2K 1.9m 0.16 nm yes
9 120 K 120K | 6K 10 m 0.15 m yes |- used in Alaska (USGS)
AFRIAL FHOTO (NHAP) 15 DK | OK 5K 2.2m 0.40 nm TO |- more efficient than ex. n? 9
10 80K 8Kl 24K Sn 0.25 nm yes | - used by USS (Wap) 16 20K SK 5K 1.5m 0.31 mm yes |- very efficient for 5 K
AERIAL PHOIO
- 17 16K | 16K 6.5K| 1.2m 0.18 nm ys |-se SUDBURY CIN test,
11 60K E 25K 6.2m 0.25 nm yes |- would be very efficient r.n.s.e. obtained 0.17 mm
(BAHL) 18 15k | 60K| SK | 2.0m 0.40 mm m
10K | 20K 5.0m 0.25 mm yes |- would be very efficient 19 15K | DK 5K 1.8m 0.35 m mo
(SPACE) using D.T.M. from ex. n° 7 20 SK} DK 5K 1.3m 0.26 m yes possible use of alti-data
12 50 K 10K | 20K 5S, 7m : i T 2 15K DK 4K 1.3m 0.32 m yes base at 1:30 K
d ap sor 0.8m | yes |- would be very efficient. 2 Bed sk] sk] ind | onm] ws
(B/H=1)
10K | 15K 4.4 m 0.29 m yes |- would be very efficient
(SPACE) using D.T.M. fram ex. n° 7
13 DK 10K | 10K 36m | 0.%m m |- would be a very EXANPLES OF APPLICATION
AERIAL FHOIO | (SPAŒ) efficient prodet using D.T.M. OF PRACTICAL FORMULA
meen RANGING WITHIN LIMITS OF THE OEEPE TEST
EXAMPLES OF EXTENDED APPLICATION OF general formulae (AT MEDIUM SCALE)
SMALLER SCALE:
T COMPUTED (AND EXPECTED) PLANIMETRIC ACCURACY
COMPUTED (AND EXPECTED) PLANIMETRIC ACCURACY OF ORTHOPHOTOS
OF ORTHOPHOTOS
TABLE ] TABLE 2.
LIST OF ABBREVIATIONS AND ACRONYMS
C.C.D. = charge-coupled device K 7 kilo (103) for example at 1 : 50 K-scale
que ; 6 means at 1 : 50,000-scale.
CNES 7 centre national d'études spatiales (the French
space agency). M.N.T. = modèle numérique du terrain (in English D.T.M)
D.E.M = digital elevation model. NASA - en Aeronautics and Space Administration
U.5.A.)
D.T.M = digital terrain model (here, similar to D.E.M).
N.H.A.P. National High Altitude Photography (U.S.A.).
> ESA = european space agency.
d N.M.A.S. = National Map Accuracy Standards (U.S.A.).
1 = ; = = = Er
e, C.P &round control point R.M.S.E. = root mean square error; it refers to the accuracy
G.I.S 2 Hiceinf ti t of a product assessed through n m ents and
racy n dus m geographic inrormatron system. is computed as being equal to vi?)
n
e G.P.M 7 Gestalt Photo-Mapper in which vi is the true error of'each measurement
) ; (measured value minus true value). The r.m.s.e is
H = flying height (related to the survey to rectify) superior or equal to the standard deviation.
The best quality indicator is the PLANIMETRIC ACCURACY
r.m.s.e. from the Last plane-transfor- ee
. : In a round, number of poinis total number oi
mation, set up on the whole points. (*) Sr | Number i
1 opair 1
cancelled GCPs measured [of rounds cancels measurements
and used used
n? 66 - 67 10 6 55 1 10 55
STAGE 3.12 | ORTHOPHOTO N° 66 Relief : class III Resultant vector in (x, 7)
animet on the ground at photo scale at ortho scale
1: SCALE OF De tineter) (microns) (microns)
Lo Operative Center and Set up a 51% deviatyr.m. s. e.|s:* deviat)r. ra. s.e.btŸ deviayr.m.s.e.
Ortho |Aeriall Aeriall, T.M Slit | Scan Instrument for ortho D up À precision accuracy |precision|accuracy |precision|accuracy
) Product|Photo §Survey ~~~ |Orthof Width | dir. Production|Assessment
- 2 points
n* 66 |n*3] 16 | eok 5x]? | . ITC ( NL) | IPTU (A) (Similarity} 1.73 | 2.07 108 129 346 414
40 m - ORi - - STEREOGRAPH -
HEIGHT ACCURACY - The whoie GCPs
I d T N e "Total number of (similarity by least 1.64 1.64 102 102 328 328
n a round, number of points Number t 1 r > C:
cancelled measured & used| of rounds cancels measurements sq. adjus’)
13 52
13 32 i - The whole GCPs
= Swnaard ITE, CR facy Sanu (affinity by least 1.76 | 1.71 110 107 352 342
t i timetri rm. ievi i v = = 5
tereopair Alti e CUT devin (meter) flying height Hl sq. adius )
2 points 0.80 1.27 5.3 x H/10000 * - The whole points
n? 66 -67 (GCPs * check pts) 1.62 1.61 101 101 324 322
* The whole points 0.80 0.87 3.6 x H/10000 (similarity by least
(least sq. adjus*. ) — (sq. adjus” )
—
607
