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Proceedings Paper

Real-time registration compensator for 1-inch Harpicon Hi-Vision camera
Author(s): Itaru Mimura; Naoto Tomura; Nobuo Murata; Masaharu Ohoka
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Paper Abstract

We have developed a real-time registration compensator for 1" Harpicon the Hi-Vision camera. Harpicon has the advantages of higher sensitivity and higher resolution than Saticon or Hi-Vision CCD imagers. However a camera with image pick-up tubes such as Harpicon produces registration errors which causes lower resolution and false color on objective edges. To solve this problem we developed a new method of detecting registration errors which is suitable for digital Hi-Vision cameras. The detector finds registration errors in the picture during the camera operation. This frees the operator from initial registration tuning and enables real-time compensation. Recently we developed a detection large scale integrated (LSI) circuit with a 1. 3tm complemental metal-oxide semi-conductor (CMOS) gate array and implemented the system in hardware. The detection hardware consists of two gate arrays twenty-four 256k x 4-bit FIFO memories and a small amount of control logic. The experimental hardware detects registration errors at 30 points (5 points vertically and 6 horizontally) in both R-G and B-G channels within 700 msec. The camera has a high resolution (40

Paper Details

Date Published: 12 August 1992
PDF: 7 pages
Proc. SPIE 1656, High-Resolution Sensors and Hybrid Systems, (12 August 1992); doi: 10.1117/12.135894
Show Author Affiliations
Itaru Mimura, Hitachi, Ltd. (Japan)
Naoto Tomura, Hitachi Denshi Ltd. (Japan)
Nobuo Murata, Hitachi Denshi Ltd. (Japan)
Masaharu Ohoka, Hitachi Denshi Ltd. (Japan)


Published in SPIE Proceedings Vol. 1656:
High-Resolution Sensors and Hybrid Systems
Morley M. Blouke; Winchyi Chang; Laurence J. Thorpe; Rajinder P. Khosla, Editor(s)

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