Abstract
Abstract An automated, close-range, photogrammetric, digital image metrology system has been developed that accomplishes the extraction of geometrical information, in terms of three-dimensional coordinates of object points, from a stereopair of video images. The tasks of data acquisition and data reduction are carried out on-line and without delay or interruption. The hardware system consists of a television camera directly connected to a general image analysis computer system. The video signals from the camera were captured by the computer system, digitised into a 512 by 512 pixel array and 64 grey levels, stored in the computer memory and displayed for viewing. For data reduction, two methods for measuring digital image pixel coordinates were developed: manual method and automatic method. For comparison 35 mm photography were used.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
