Page Analysis and Ground Truth Elements

Page Analysis and Ground Truth Elements (PAGE) is an XML standard for encoding digitised documents.^[1] Comparable to ALTO (XML), it allows the organisation and structure of a page and its contents to be described.

PAGE XML can be used to describe:^{[citation needed]}

• page content (regions, lines of text, words, glyphs, reading order, text content, ...)
• the evaluation of the layout analysis (evaluation profiles, evaluation results, ...)
• the cutting of the document image (cutting grids)

The format is developed by the Pattern Recognition & Image Analysis Lab (PRIMA) at the University of Salford in Manchester.^{[citation needed]}

It was designed to be used in conjunction with automatic segmentation and transcription techniques (OCR and HTR): indeed, PAGE aims to support each of the different steps in the processing chain for image document analysis (from image enhancement to layout analysis to OCR).^{[citation needed]}

The PAGE XML schema is notably used as an export and import format by automatic transcription software such as eScriptorium^[2] and Transkribus.^[3] It is also an export format used by Kraken, a turnkey OCR system optimised for documents in historical and non-Latin scripts.^[4]