The document provides an introduction to MPEG-7, which is a standard for describing multimedia content. It discusses the background and need for MPEG-7, as well as the main components of MPEG-7 including the Description Definition Language (DDL) for defining descriptions, Multimedia Description Schemes (MDS) for organizing descriptors, and various audio and video descriptors. Application areas of MPEG-7 involve searching, indexing, and retrieving multimedia content across different domains.