DIGITAL POINTS TRANSFER FOR AEROTRIANGULATION 
BY ANALYTICAL PLOTTER 
G.A.Zotov, L.B.llyin, S.S.Nekhin, 
Central Research Institute of Geodesy, 
Air Survey and Cartography (TsNIIGAIK), 
Moscow, Russia 
S.V. Oleinik, 
the "Aerogeopribor" Production Association, 
Vinnitsa, Ukraine 
Commission ll, Working Group S 
KEY WORDS: Analytical, Triangulation, Technology, Software, Computer, 
Block adjustment, Accuracy, Digital point transfer 
ABSTRACT: 
The paper discusses the main aspects of automatic point transfer in processe of 
aerotriangulation by analytical stereoplotter. Hardware and software are presented. The 
developed technology features are an exclusion of artifical tie point marking from 
photogrammetric bridging and substitution of it for digital points transfer. The new 
technology permits to improve accuracy of photogrammetric measurements, to automate 
processes of project designing, point coordinate measuring on aerial photographs, and 
checking of results obtained from major procedures. The technology leads to productivity 
increase, and makes the routine work of an operator much easier. As preliminary 
calculations have shown, gain an annual economical effect of about 50 million roubles 
per one working station. 
1. INTRODUCTION 
Relaible and precision identification and plotter permits to improve accuracy of 
marking of tie points are of great photogrammetric measurements, to 
importance in photogrammetric bridging. ^ automatise processes of block designing, 
The technology, currently in practice in point coordinate measuring on aerial 
aerotriangulation, with artificial tie points photographs, and checking of results 
marking | and sterocomparators applied obtained from major procedures. 
does not allow an efficiency increase of 
the process and prevents from introducing The technology involves using of the 
promising mapping technologies based following software and hardware devices: 
on analytical plotters. In this connection the -an analytical plotter (AP) STEREO- 
developed technology features are an ANAGRAPH; 
exclusion of artificial tie point marking - a PC compatible with IBM PC/AT 
from photogrammetric bridging and  3863/4/120: 
substitution of it for digital points - a digitizer of a plotting board-type 
transfer. The .new technology based on SMP-6410; 
using of STEREOANAGRAPH analytical - a sterescope ZLS-4; 
437 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B2. Vienna 1996