Method for providing output image in either cylindrical mode...

Details Method for providing output image in either cylindrical mode... Method for providing output image in either cylindrical mode...

2011-06-14

2011-06-14

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image transformation or preprocessing

Mapping 2-d image onto a 3-d surface

C382S276000, C382S100000

Reexamination Certificate

active

07961980

ABSTRACT:
A method is disclosed for transforming a wide-angle video image in to a Perspective view or a Cylindrical video image with reduced distortion. The method for providing an output image in either a Cylindrical mode or a Perspective mode, and comprising steps of: (1) acquiring a wide-angle image, which is a circular projection image, which format selected from the group of full circle, rounded rectangle, and full projection; (2) using a degree of view (DOV) and a radius of a projected circular region of the wide-angle image to select an image in one of Azimuthal modes; (3) specifying a horizontal field of view range (HFOVR) and a vertical field of view range (VFOVR) as a source projection image region, which is in Azimuthal mode; (4) converting the source projection image region in Azimuthal mode into a new source projection image region in Cylindrical mode; (5) converting the new source projection image in Cylindrical mode into another source projection image in Perspective mode; and (6) generating the output image.

REFERENCES:
patent: 5990941 (1999-11-01), Jackson et al.
patent: 7317473 (2008-01-01), Chen et al.
patent: 2002/0118890 (2002-08-01), Rondinelli
patent: 2005/0030643 (2005-02-01), Gal et al.
patent: 2008/0074500 (2008-03-01), Chen et al.

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