Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài:Research Article A New Technique for the Digitization and Restoration of Deteriorated Photographic Negatives | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2009 Article ID217016 13 pages doi 2009 217016 Research Article A New Technique for the Digitization and Restoration of Deteriorated Photographic Negatives George V. Landon 1 Duncan Clarke 2 and W. Brent Seales3 1 Department of Computer Science Eastern Kentucky University Richmond KY 40475 USA 2 Fremont Associates LLC Camden SC 29020-4316 USA 3 Center for Visualization and Virtual Environments Computer Science Department University of Kentucky Lexington KY 40506-0495 USA Correspondence should be addressed to George V. Landon Received 17 February 2009 Revised 12 June 2009 Accepted 31 August 2009 Recommended by Nikos Nikolaidis This work describes the development and analysis of a new image-based photonegative restoration system. Deteriorated acetate-based safety negatives are complex objects due to the separation and channeling of their multiple layers that has often occurred over 70 years time. Using single-scatter diffuse transmission model the intrinsic intensity information and shape distortion of film can be modeled. A combination of structured-light and high-dynamic range imaging is used to acquire the data which allows for automatic photometric and geometric correction of the negatives. This is done with a simple-to-deploy and cost-effective camera and LCD system that are already available to most libraries and museums. An initial analysis is provided to show the accuracy of this method and promising results of restoration of actual negatives from a special archive collection are then produced. Copyright 2009 George V. Landon et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction Much of the current research in the area of document imaging has focused in document .
