Hierarchical summarization for easy video applications

With growing use of videos, demand on retrieval video applications has become intense. Most existing methods that analyze the semantics of a video build specific models; for example, ones that aim at event detection, or targeted video albumization. These might be called as application specific works and useful in their own right. In this paper, however, we propose a video abstraction framework that unifies the creation of various applications, rather than the application itself. Specifically, we present a dictionary summarization of a video that provides abstractions at various hierarchical levels such as pixels, frames, shots, and the complete video. We illustrate the usability of our model with four different “apps”.