Document imaging system

摘要

A method of calibrating an image capture system and subsequently capturing an image of a document with an electronic camera by capturing a plurality of overlapping image tiles of the document at different locations over a support surface and with a predetermined degree of overlap, and joining the tiles into a composite image after correcting for expected distortion and overlap in accordance with transform data obtained by capturing a plurality of image tiles of a registration array having a plurality of individually identifiable location identification features with a predetermined orientation and spacing amongst the features and determining distortion for each tile from the identification features.