Salient stills: Process and practice

Abstract

Unlike a photograph, which represents a discrete moment of time, a salient still reflects the aggregate of the temporal changes that occur in a moving image sequence. The salient still image may have multiresolution patches, a larger field of view, or higher overall resolution than any individual frame in the original image sequence. The salient still process is reviewed in the context of resolution enhancement, motion estimation, segmentation, and model-based coding. Applications of salient stills, including portraiture, storyboarding, and database search, are discussed. Subjects' reactions to salient still images are presented.