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doi:10.1016/S0031-3203(01)00026-7 
Copyright © 2001 Pattern Recognition Society. Published by Elsevier Science B.V.
Automatic generation of structured hyperdocuments from document images*1
Received 13 January 2000;
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Abstract
As sharing documents through the World Wide Web has been recently and constantly increasing, the need for creating hyperdocuments to make them accessible and retrievable via the internet, in formats such as HTML and SGML/XML, has also been rapidly rising. Nevertheless, only a few works have been done on the conversion of paper documents into hyperdocuments. Moreover, most of these studies have concentrated on the direct conversion of single-column document images that include only text and image objects. In this paper, we propose two methods for converting complex multi-column document images into HTML documents, and a method for generating a structured table of contents page based on the logical structure analysis of the document image. Experiments with various kinds of multi-column document images show that, by using the proposed methods, their corresponding HTML documents can be generated in the same visual layout as that of the document images, and their structured table of contents page can be also produced with the hierarchically ordered section titles hyperlinked to the contents.
Author Keywords: Structured hyperdocument; Multi-column document; Document conversion; Document image understanding; Logical structure analysis
Article Outline
- 1. Introduction
- 2. Related works
- 3. HTML conversion of multi-column document images
- 3.1. An approach based on the table structure
- 3.1.1. Text object splitting
- 3.1.2. Object merging
- 3.1.3. Virtual table generation and object ordering
- 3.1.4. Table-to-HTML conversion algorithm
- 3.2. An approach based on the layer structure
- 4. Generation of a structured hyperdocument based on logical structure analysis
- 4.1. Section title candidate extraction
- 4.2. Section number sorting
- 4.3. Verification
- 4.4. Section title arrangement
- 5. Experimental results and analysis
- 6. Conclusions and further research
- References
- Vitae
