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11 April 2001 New approach for old movie restoration
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Proceedings Volume 4308, High-Speed Imaging and Sequence Analysis III; (2001)
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States
The role in which old movies play to the society is a priceless part of culture and history. These movies, due mainly to the storage conditions, may present a type of local defect with two characteristics: it does not affect the whole frame; and it is thin along the time axis. In this work, we attack the local defect detection problem and defects in consecutive images with any intersection using an opening by temporal surface, followed by a spatial geodesic reconstruction by dilation using structuring element Bs. The opening by surface, for binary images, extracts the connect components which area is greater than a specific threshold, and for gray level images, it evaluates each connected component produced by successive thresholds of the images, through binary operations. The restoration process using opening by surface can be subdivided in two steps: 1) opening by temporal surface applied to the image sequences that extracts connected components or domes with area greater than or equal to a specific threshold S; 2) spatial reconstruction by geodesic dilation using structuring element applied to a single image. This technique is being applied to a move collection (1920 decade) of the Brazilian ex-president Arthur Bernardes provided by the Arquivo Publico Mineiro in Belo Horizonte, MG, Brazil.
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Arnaldo de Albuquerque Araujo, Silvio Jamil Ferzoli Guimaraes, and Gustavo Cerqueira "New approach for old movie restoration", Proc. SPIE 4308, High-Speed Imaging and Sequence Analysis III, (11 April 2001);

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