Apparatus and method for calculating source image coordinates

Details Apparatus and method for calculating source image coordinates Apparatus and method for calculating source image coordinates

2005-11-15

2009-10-27

Lee, M. (Department: 2622)

Television

Basic receiver with additional function

Multimode

C348S445000, C348S580000

Reexamination Certificate

active

07609325

ABSTRACT:
A method and an apparatus for calculating source image coordinates. In an embodiment, a variation rate of the source image coordinate with respect to a converted image coordinate is calculated by a recursive computation, and variation rates are accumulated to obtain the source image coordinate. Because the converted image coordinate sequentially increases one-by-one, the variation rate may be obtained by using adding operations of previously obtained source image coordinate, rather than multiplying operations with the all of the converted image coordinates. Therefore, the source image coordinates may simply and effectively be calculated.

REFERENCES:
patent: 5067019 (1991-11-01), Juday et al.
patent: 5818527 (1998-10-01), Yamaguchi et al.
patent: 7158158 (2007-01-01), Fleming et al.
patent: 2002/0021365 (2002-02-01), Yang et al.
patent: 1999-12410 (1999-02-01), None
patent: 2003-0008840 (2003-01-01), None
patent: WO 99/30483 (1999-06-01), None
English language abstract of Korean Publication No. 1999-12410.
English language abstract of Korean Publication No. 2003-0008840.
English language abstract of Japanese PCT Publication No. WO 99/30483.

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