Method and apparatus for removing flicker from images

Details Method and apparatus for removing flicker from images Method and apparatus for removing flicker from images

2007-11-20

2007-11-20

Srivastava, Vivek (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S228100

Reexamination Certificate

active

09927201

ABSTRACT:
Method and apparatus for removing image artifacts from an image of a scene illuminated by a periodically varying light source such as a fluorescent light source. The image is represented by image data, and the method has the steps of determining a flicker function and processing the image data using the flicker function to remove the image artifacts from the image. The method and apparatus operate on data of a single image, do not require any additional input other than values of the flicker and frame periods, and do not require that the flicker be independently monitored. The method and apparatus is suitable for removing image artifacts from an image represented by image data collected by a CMOS image sensor utilizing a rolling shutter.

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Ohuchi, Toshiaki et al., “A Robust Method of Image Flicker COrrection for Heavily—Corrupted Old Film Sequences”, Proceedings 2000 International Conference on Image Processing, vol. 2, Sep. 10, 2000, pp. 672-675.

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