Spatio-Temporal Modelling and Querying Video Databases Using High-Level Concepts
Surya Nepal, Uma Shankari Srinivasan · 2002
Modelling and querying video content involves understanding the spatiotemporal relationships of objects 1 represented in a video sequence. In this paper, we present a binary representation-based framework for modelling and querying video object relationships at a semantic level. The framework supports spatio-temporal queries using high-level concepts. We propose a set of semantic (qualitative) terms to describe the spatio-temporal relations between objects and then show how such qualitative terms can be calculated within the proposed framework using a fuzzy-logic-based approach. We also report the experimental results performed on a video clip from the MPEG-7 video content archive.