Segmentation and Beautification of Handwriting using Mobile Devices

by Jesper Dürebrandt

Institution: Uppsala University
Year: 2015
Keywords: handwriting; segmentation; HWR; OCR; computer vision; opencv; iOS; mobile; Engineering and Technology; Teknik och teknologier; Master Programme in Engineering Physics; Civilingenjörsprogrammet i teknisk fysik
Record ID: 1343059
Full text PDF: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-251948


Converting handwritten or machine printed documents into a computer readable format allows more efficient storage and processing. The recognition of machine printed text is very reliable with today's technology, but the recognition of offline handwriting still remains a problem to the research community due to the high variance in handwriting styles. Modern mobile devices are capable of performing complex tasks such as scanning invoices, reading traffic signs, and online handwriting recognition, but there are only a few applications that treat offline handwriting. This thesis investigates the segmentation of handwritten documents into text lines and words, how the legibility of handwriting can be increased by beautification, as well as implementing it for modern mobile devices. Text line and word segmentation are crucial steps towards implementing a complete handwriting recognition system. The results of this thesis show that text line and word segmentation along with handwriting beautification can be implemented successfully for modern mobile devices and a survey concluding that the writing on processed documents is more legible than their unprocessed counterparts. An application for the operating system iOS is developed for demonstration.