1 June 2010 Detection of dirt impairments from archived film sequences: survey and evaluations
Jinchang Ren, Theodore Vlachos
Author Affiliations +
Abstract
Film dirt is the most commonly encountered artifact in archive restoration applications. Since dirt usually appears as a temporally impulsive event, motion-compensated interframe processing is widely applied for its detection. However, motion-compensated prediction requires a high degree of complexity and can be unreliable when motion estimation fails. Consequently, many techniques using spatial or spatiotemporal filtering without motion were also been proposed as alternatives. A comprehensive survey and evaluation of existing methods is presented, in which both qualitative and quantitative performances are compared in terms of accuracy, robustness, and complexity. After analyzing these algorithms and identifying their limitations, we conclude with guidance in choosing from these algorithms and promising directions for future research.
©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Jinchang Ren and Theodore Vlachos "Detection of dirt impairments from archived film sequences: survey and evaluations," Optical Engineering 49(6), 067005 (1 June 2010). https://doi.org/10.1117/1.3456633
Published: 1 June 2010
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CITATIONS
Cited by 5 scholarly publications and 4 patents.
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KEYWORDS
Image filtering

Digital filtering

Spatial filters

Binary data

Motion models

Optical engineering

Sensors

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