9. Finding Duplicated Documents
Click menu item �Example/Special Example/Document Duplication�; then click �Batch/Run�, this chapter is done. Now, we will walk through the Document duplication example.
Recent development in scanner technology has made it very easy to convert paper documents into digital documents. A $1000 scanner, for example Fujitsu 4120c, can scan and save 50 pages in a single click. The scanner creates image names via auto-numbers you have specified. More expensive scanners can scan and save 1,000 pages in a single click.
This chapter attempts to solve a particular problem: to retrieve duplicated Document images. Assume you have a million pages of documents already converted into digital form, and you want to retrieve documents that meet some specified constraints. A typical Document retrieval system should have several components:
1. Text;
2. Image;
3. 1-D barcode; and
4. 2-D barcode.
Each component addresses a particular area of retrieval and their functions generally do not overlap. A complete solution should use all of the above options. This software deals with the image matching only.
Chapter contents include:
9.1 Why Image Matching?
9.2 Data
9.3 Parameters
9.4 Signature
9.5 Training
9.6 Matching
9.7 Analysis
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