iels 
er 
ion 
A wide literature (1) is by now available to fully descri 
be and illustrate the concept of "industrial photogrammetry” 
as well as its multifacet applications. For more detailed in- 
formation please refer to such literature. 
We would like to add that we consider Photogrammetry as 
an industrial application also, not only because it is used 
for the survey of industrial product components, but mainly 
because it should be organized to replace or to side metrolo- 
gical activity in many cycles of manufacturing operations. 
For instance, in the automotive field, which is presen- 
tly passing through a severe crisis, the need is particularly 
felt to exploit the most advanced techniques in all sectors, 
including metrology, in order to achieve the maximum economy, 
automation and rationalization of the manufacturing operations 
performed. Besides, the need is continuously growing for stri 
cter and stricter "accuracy" in the various techniques (either 
repetitive or not): measuring must therefore be accurate, spe 
edy and carefully checked off. 
Metrology (particularly in the field of mechanical engi- 
neering) has fulfilled such requirements and achieved remarka 
ble progress. 
The introduction of Photogrammetry in the above fields of 
activity would not ingenerate any conflict inasmuch as, while 
it calls for the necessary support from other metrological te 
chniques, at the same time it can integrate itself with such 
techniques, thus offering a wide range of possible applications. 
Roughly, the respective competence can be outlined as fol 
lows: 
a) survey of small-size objects (less than 0.4 + 0.5 m) - whe 
re tolerance allowed is as close as one micron or + 0.01 mm 
- falls within the province of mechanical metrology