Process for length measurement by means of a photosensitive network camera

摘要

Process for measuring lengths by means of a photosensitive network camera, characterized in that the process consists in integrating the video signals (V) over all or part of each of the scan lines (BI); following the evolution of the integral (I) during successive scans (BI) in the vicinity of the edges (9); and precisely locating the points in the integral curve (I) corresponding to the edges (9) in the image (8) of the object (1) to be measured.