tailieunhanh - Báo cáo hóa học: " Research Article A Multifunctional Reading Assistant for the Visually Impaired"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Multifunctional Reading Assistant for the Visually Impaired | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2007 Article ID 64295 11 pages doi 2007 64295 Research Article A Multifunctional Reading Assistant for the Visually Impaired Celine Mancas-Thillou 1 Silvio Ferreira 1 Jonathan Demeyer 1 Christophe Minetti 2 and Bernard Gosselin1 1 Circuit Theory and Signal Processing Laboratory Faculty of Engineering of Mons 7000 Mons Belgium 2 Microgravity Research Center The Free University of Brussels 1050 Brussels Belgium Received 15 January 2007 Revised 2 May 2007 Accepted 3 September 2007 Recommended by Dimitrios Tzovaras In the growing market of camera phones new applications for the visually impaired are nowadays being developed thanks to the increasing capabilities of these equipments. The need to access to text is of primary importance for those people in a society driven by information. To meet this need our project objective was to develop a multifunctional reading assistant for blind community. The main functionality is the recognition of text in mobile situations but the system can also deal with several specific recognition requests such as banknotes or objects through labels. In this paper the major challenge is to fully meet user requirements taking into account their disability and some limitations of hardware such as poor resolution blur and uneven lighting. For these applications it is necessary to take a satisfactory picture which may be challenging for some users. Hence this point has also been considered by proposing a training tutorial based on image processing methods as well. Developed in a user-centered design text reading applications are described along with detailed results performed on databases mostly acquired by visually impaired users. Copyright 2007 Celine Mancas-Thillou et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the .