Abstract: In recent years,automatic image and video annotation has been becoming a popular research topic and is advancing very fast I}his paper provided a new survey to this technique by reviewing a variety of literatures published lately. The reviewed work was classified into two categories:learning-based approaches and search-based approaches.We firstly summarized their basic ideas,advantages,and drawbacks,respectively. Afterwards,we introduced a few commercial systems and research prototypes of retrieval and annotation. Finally, a potentially promising idea was suggested.

Key words: Automatic image and video annotation, Learning-based approaches, Search-based approaches