Adaptive filtering of visual image using auxiliary image...

Details Adaptive filtering of visual image using auxiliary image... Adaptive filtering of visual image using auxiliary image...

2006-07-04

2006-07-04

Mancuso, Joseph (Department: 2621)

Image analysis

Image enhancement or restoration

Image filter

C382S263000, C382S264000

Reexamination Certificate

active

07072525

ABSTRACT:
An adaptive filter is used to filter a target version of a visual image that is produced by processing an original version of the visual image, the characteristics of the adaptive filter being determined in accordance with one or more characteristics of the original version of the visual image. The orientation and/or strength of filtering of the adaptive filter can be adjusted based on local properties of the original image, which can enable the adaptive filter to avoid introducing blurring across true edges in an image.

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Hou et al., Orientation Selective Operators for Ridge, Valley, Edge, and Line Detection in Imagery, Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on, vol.: V, Apr. 19-22, 1994, pp.:V/25-V/28 vol. 5.
Freeman, William T. and Adelson, Edward H, “The Design and Use of Steerable Filters,” IEEE Trans. Patt. Anal. and Machine Intell., vol. 13, No. 9, pp. 891-906, Sep. 1991.
Simoncelli, Eero P. and Freeman, William T., “The Steerable Pyramid: A Flexible Architecture for Multi-Scale Derivative Computation,” 2nd Annual IEEE International Conference on Image Processing, Washington, D.C., Oct., 1995.

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