?url_ver=Z39.88-2004&rft_id=10.1109%2FHIS.2011.6122123&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=I.F.Bt.&rft.au=Hairuman%2C+I.F.Bt.&rft.aulast=Hairuman&rft.isbn=9781457721502&rft.title=OCR+signage+recognition+with+skew+%26+slant+correction+for+visually+impaired+people&rft.date=2011&rft.genre=proceeding