Wide-angle image dewarping method and apparatus

Details Wide-angle image dewarping method and apparatus Wide-angle image dewarping method and apparatus

1998-08-04

1999-12-21

Ho, Tuan

Television

Camera, system and detail

Remote control

348207, 348 39, 348143, H04N 5225

Patent

active

060056118

ABSTRACT:
A method and apparatus for transforming wide angle video into perspective corrected viewing zones which either a single user or multiple users may select, orient and magnify. The present invention first captures a wide angle digital video input by any suitable means. The captured image is then stored in a suitable memory means so portions of the image may be selected at a later time. When a portion of the stored video is selected for viewing, a plurality of discrete viewing vectors in three dimensional space are chosen on the video input and transformed to a plurality of control points in a two dimensional plane or any other suitable surface. The area between these points which is still warped from the original wide angle image capture is then transformed to a perspective corrected field of view. The perspective corrected field of view is then displayed on a suitable displaying apparatus, such as a monitor or head mounted display.

REFERENCES:
patent: 4728839 (1988-03-01), Coughlan et al.
patent: 5185667 (1993-02-01), Zimmermann
patent: 5796426 (1998-08-01), Gullichsen et al.
patent: 5877801 (1999-03-01), Martin et al.

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