Errors in measurement of photographic image are inavoidable. The important thing is how to reduce them to a certain extent which is acceptable. Therefore, it is necessary to analyse error source, to detect error values and to control error extent. The last two problems are briefly discussed in this paper.
"Detection And Control Of Error In Image Measurements", Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); doi: 10.1117/12.969204; https://doi.org/10.1117/12.969204