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Automatic Film Line Scratch Removal System using Spatial Information  

Ko, Eun-Jeong (Dept. of Advanced technology Fusion IT, Konkuk University)
Kim, Kyung-Tai (Dept. of Advanced technology Fusion IT, Konkuk University)
Kim, Eun-Yi (Dept. of Advanced technology Fusion IT, Konkuk University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.45, no.6, 2008 , pp. 162-169 More about this Journal
Abstract
Film restoration is to detect the location and extent of defected regions from a given movie film, and if present, to reconstruct the lost information of each regions. It has gained increasing attention by many researchers, to support multimedia service of high quality. Among artifacts, scratch is the most frequent degradation. In this paper, an automatic film line scratch removal system is developed that can detect and restore all kind of scratches. For this we use the spatial information of scratches: The scratch in old films has lower or higher brightness than neighboring pixels in its vicinity and usually appears as a vertically long thin line. Our systems consists of scratch detection and scratch restoration. The scratches of various types are detected by neural network based texture classifier and morphology-based shape filter and then the degraded regions are restored using bilinear interpolation. To assess the validity of the Proposed method, it has been tested with all kinds of scratches, and then experimental results show that the proposed approach is robust to various scratches and efficient to apply a real film removal system.
Keywords
Film restoration; scratch removal; texture classification; shape filtering; Bilinear interpolation;
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