Method for run-time streak removal

Details Method for run-time streak removal Method for run-time streak removal

2004-11-19

2008-10-07

Bella, Matthew C. (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S300000, C382S260000

Reexamination Certificate

active

07433539

ABSTRACT:
A method for run-time streak removal from a scanned image includes providing a scan line of image data from the scanned image; detecting corrupted data within the scan line; evaluating image data located in a neighborhood before and after the corrupted data on the scan line; if the evaluated image data in the neighborhood is smooth, replacing the corrupted data with image data determined by a linear interpolation process; and else if the evaluated image data in the neighborhood is not smooth, replacing the corrupted data with image data determined by the linear prediction process. Various techniques can be used to evaluate the image data located in the surrounding neighborhood. For example, a filter selection step may be used based on prediction discrepancies.

REFERENCES:
patent: 7200286 (2007-04-01), Matsumoto
U.S. Appl. No. 10/845,146, filed May 14, 2004 to S. Schweid, et al. for “Systems and Methods for Streak Detection in Image Array Scanning Overdetermined Scanners and Column Filtering”.

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