Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1991-05-13
1993-02-09
Groody, James J.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358 87, 358108, 382 44, H04N 530
Patent
active
051856670
ABSTRACT:
A device for omnidirectional image viewing providing pan-and-tilt orientation, rotation, and magnification within a hemispherical field-of-view that utilizes no moving parts. The imaging device is based on the effect that the image from a fisheye lens, which produces a circular image of an entire hemispherical field-of-view, which can be mathematically corrected using high speed electronic circuitry. More specifically, an incoming fisheye image from any image acquisition source is captured in memory of the device, a transformation is performed for the viewing region of interest and viewing direction, and a corrected image is output as a video image signal for viewing, recording, or analysis. As a result, this device can accomplish the functions of pan, tilt, rotation, and zoom throughout a hemispherical field-of-view without the need for any mechanical mechanisms. The preferred embodiment of the image transformation device can provide corrected images at real-time rates, compatible with standard video equipment. The device can be used for any application where a conventional pan-and-tilt or orientation mechanism might be considered including inspection, monitoring, surveillance, and target acquisition.
REFERENCES:
patent: 4772942 (1988-09-01), Tuck
patent: 5023725 (1991-06-01), McCutchen
patent: 5067019 (1991-11-01), Juday et al.
patent: 5068735 (1991-11-01), Tuchiya et al.
Burgess Glenton
Groody James J.
TeleRobotics International, Inc.
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