Automatic Hyperlinking of Engineering Drawing Documents

In construction or manufacturing industry, engineering drawings are used as blueprint or plan documents to facilitate the construction or manufacturing process. A fairly large construction project involves very large number of these documents, divided into different sub-sections. An engineer or architect often needs to refer different documents while preparing a new one or marking some irregularity in some document. Therefore they need to navigate through different files. It becomes an extremely difficult and time consuming task to move from one file to another in an interactive way. This paper describes an automated technique to access information from the existing drawing documents and create hyperlinks in order to enable the engineers to quickly navigate between files. The overall accuracy of our system for a class of documents is a decent 94.46%.