Pathological Motion (PM) is object motion which cannot be estimated reliably by standard motion estimators. PM is often associated with objects which are being occluded in a scene or with fast moving objects (often causing motion blur). Although not a form of degradation itself, the presence of PM can cause restoration applications to fail. The group has been concerned with the effect that PM has on missing data treatment.
Pathological Motion and Missing Data Treatment
PM reduces the robustness of Missing Data Treatment algorithms (ie "dirt and sparkle" or blotch removal) as it causes regions of real image data to be mistaken as blotches. As a result, it is common to see these regions removed from images after treatment (Fig. 1 & 2). The adopted solution to this problem [1], is to use more frames in which to detect blotches (up to 5 from the standard 3). This makes it easier to distinguish between actual blotches and false alarms caused by PM.
Examples
Bibliography
- Pathological Motion Detection for Robust Missing Data Treatment in Degraded Archived Media. D. Corrigan , N. Harte and A. Kokaram (2006) In IEEE ICIP. Atlanta, USA, pages 621-624.
