TY JOUR TI THE DEFINITION OF DISTORTION OF LARGE PARTS OF THE ANALYSIS OF THE PROJECTION OF THE CORRECT GEOMETRIC SHAPES ON A CURVED SURFACE KW technical vision KW projection KW touchless control KW form error JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Maslova, I.V. AU Chetverikov, B.S. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov