Method and apparatus for unobtrusively correcting projected...

Details Method and apparatus for unobtrusively correcting projected... Method and apparatus for unobtrusively correcting projected...

2006-12-15

2010-10-12

Patel, Kanji (Department: 2624)

Image analysis

Image enhancement or restoration

C348S744000, C353S069000

Reexamination Certificate

active

07813578

ABSTRACT:
A method and apparatus are provided for unobtrusively estimating the characteristics of a projection surface, in order to correct the distortion of images resulting from the characteristics of the projection surface in the case of a projector. The method includes projecting at least one reference pixel and at least one counterbalance pixel corresponding to the reference pixel onto consecutive image frames, and correcting an image frame to be projected using correction information determined based on photographic information of the reference pixel.

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Oliver Bimber, et al., “Embedded Entertainment With Smart Projectors”, Jan. 2005, pp. 48-55, 2005 IEEE.

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