Film and video archive restoration using mathematical morphology
Stephen Marshall · 2001
Interest has been increasing in the area of archive film restoration. This can no doubt be attributed to the emergence of digital television broadcasting and the increase in video sales. To meet this demand, it is becoming increasingly attractive to make archive material available to this market. Unfortunately, much archive material has been corrupted in some way and, prior to resale or broadcast, it is necessary for the material to undergo some form of restoration. Here, we address the problem of video and film restoration using mathematical morphology. We describe a method for the optimisation of multidimensional grey-scale soft morphological filters, with respect to specific objective image quality criteria, and their application in archive film restoration. Specifically, we address the problem known as film dirt. For video scratch problems we present a method for mapping the problem back to the format of the original video tape and repairing the faults using mathematical morphology. This paper is a summary of work presented previously. (5 pages)