12 February 1980 Stereo Image Digitizer For An Automatic Feature Extraction System
Author Affiliations +
Abstract
A flexible image digitizing system is under development to provide for digitization of stereo photographs and graphic materials in an automatic feature extraction system. The digitizing system employs two servo-controlled photograph stages and linear CCD array cameras to scan stereo photographs for image digitization. Raster scanning is accomplished by moving the photograph in a direction approximately normal to the array while reading out successive lines of video from the array. The photograph scanner optics contain zoom magnification and rotation capabilities, providing variable resolution and an ability to correct first order geometric image distortions. Graphic input materials are scanned by a separate line array camera mounted on the plotting head of an XY plotter. The digitizer system employs a hardware digital video processing unit to correct for dark signal and gain variations of the linear arrays. This processor also corrects for geometric distortions of the lens systems and arrays. Control of the overall system is implemented with a minicomputer, which provides scanning, data transfer, calibration, and setup functions of the system. Peripherals of the minicomputer include a large dual access disk storage unit for image data storage and transfer to the main computer of the automatic feature extraction system.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James O. Abshier, James O. Abshier, Lawrence J. Meyers, Lawrence J. Meyers, } "Stereo Image Digitizer For An Automatic Feature Extraction System", Proc. SPIE 0200, Laser Recording and Information Handling, (12 February 1980); doi: 10.1117/12.958079; https://doi.org/10.1117/12.958079
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

3D Visual Servo Control System
Proceedings of SPIE (February 28 1990)
Estimating 6-DOF from visual information
Proceedings of SPIE (July 18 1999)
Real-time quality control on a smart camera
Proceedings of SPIE (January 19 2006)
Computer Controlled Operation Of Reconnaissance Cameras
Proceedings of SPIE (December 10 1984)
Immersive video for virtual tourism
Proceedings of SPIE (November 11 2001)

Back to Top