On the Vertical Accuracy of Aerial Photographs 
Plotting 
machine 
Projection 
Scale 
nfTÏnfir Date of Measurement 
oi eye piece 
Owner of the 
Instrument 
Autograph A-7 
(No. 631) 
1 : 4,000 
XIX) 
Sept. 1, 1961 
without correction plate 
June 7, 1964 
with correction plate 
Tokyo University 
Stereoplotting 
Machine A-8 
1 : 4,000 
X 8.5 
Apr. 11, 1963 
Without correction plate 
Apr. 12, 1963 
with correction plate 
The Pacific Aero 
Survey Co., Ltd. 
luig- 
Kelsh Plotter 
1 : 2,000 
May 7, 1963 
The Pacific Aero mgs- 
Survey Co., Ltd. rung 
Nistrie Photo- 
Stereo /1-11 
1 : 3,000 
X10.3 
Dec. 11, 1963 
Oba Construction 
Co. Ltd. 
6S 
Fig. 1. Network of control points and measured points of height 
Luge 
e be- 
the four corners of the photographs were used. The height was read at each 
checking point from No. 1 to No. 69 and was repeated five times round. Then 
the result was obtained at each point. In the case of the A 7, A 8 and Kelsh 
nach 
1er in 
aten- 
rech- 
V 
+ - 
n 
(8) 
V 
d 
n 
14J t’ictscnner, j.: me uenaurgKeit aer optiscn-mconaniBcnon 
Entzerrung. VEB C. Zeiss Nachr., Sonderdr. 1963. 
[5] Marton, Q.: a. a. O. [3]. 
u des 
Koordinatensystems in der Bildebene dar. Bei einer kon 
kreten Entzerrung sind es die beiden Verschiebungen