Hybrid Page Layout Analysis via Tab-Stop Detection

A new hybrid page layout analysis algorithm is proposed, which uses bottom-up methods to form an initial data-type hypothesis and locate the tab-stops that were used when the page was formatted. The detected tab-stops, are used to deduce the column layout of the page. The column layout is then applied in a top-down manner to impose structure and reading-order on the detected regions. The complete C++ source code implementation is available as part of the Tesseract open source OCR engine at http://code.google.com/p/tesseract-ocr.

• Type: Conference
• Year: 2009
• Where: ICDAR
• Authors: Raymond W. Smith
• Keywords: Column Layout, Document Analysis, Hybrid Page Layout, ICDAR 2009, Initial Data-type Hypothesis