Title :
Time delay and integration imagers and their applications to image acquisition cameras
Author :
Yao, Ying L. ; Schlig, Eugene S. ; Giordano, Francis P.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
Abstract :
A family of experimental time-delay and integration (TDI) charge-coupled imaging devices has been designed and built using a minimally-modified logic/memory NMOS process. These imagers yield more favorable tradeoffs between image quality, speed, and illumination than conventional linear imagers and are suitable for high-speed scanning of color or monochrome documents at low illumination power. The design and construction of a prototype scanning camera using the 3072×32 TDI devices is also described. Intended for publishing applications, the camera is capable of capturing both monochrome and color images. At half-page document size, the scanning resolution is 300 pixels/in. Special color filters are used to produce colorimetric outputs. Both reflective and transmissive illumination are provided to scan both prints and transparencies of various sizes
Keywords :
CCD image sensors; delays; NMOS process; charge-coupled imaging devices; color filters; colorimetric outputs; half-page document size; illumination; image acquisition cameras; image quality; integration imagers; prototype scanning camera; speed; time delay and integration imagers; Cameras; Color; Delay effects; Image quality; Lighting; Logic design; Logic devices; MOS devices; Prototypes; Publishing;
Conference_Titel :
CompEuro '89., 'VLSI and Computer Peripherals. VLSI and Microelectronic Applications in Intelligent Peripherals and their Interconnection Networks', Proceedings.
Conference_Location :
Hamburg
Print_ISBN :
0-8186-1940-6
DOI :
10.1109/CMPEUR.1989.93395
