Author : Prabakaran S 1
Date of Publication :10th July 2019
Abstract: An OCR (Optical Character Recognition) system which is a branch of computer vision and in turn a sub-class of Artificial Intelligence. Optical character recognition is the translation of optically scanned bitmaps of printed or hand-written text into audio output by using of Raspberry pi. OCRs are developed for many world languages are already under efficient use. This method extracts moving object region by a mixture-of-Gaussians-based background subtraction method. A text localization and recognition are conducted to acquire text information. To automatically localize the text regions from the object, a text localization and Tesseract algorithm by learning gradient features of stroke orientations and distributions of edge pixels in an Ada boost model. Text characters in the localized text regions are then binaries and recognized by off-the-shelf optical character recognition software. The recognized text codes are output to blind users in speech. Performance of the proposed text localization algorithm. As the recognition process is completed, the character codes in the text file are processed using Raspberry pi device on which recognize character using Tesseract algorithm and python programming, the audio output is listed
Reference :
-
- E . Cardillo, V. Di Mattia, G. Manfredi, P. Russo, A. De Leo, A. Caddemi, G. Cerri "An Electromagnetic Sensor Prototype to Assist Visually Impaired and Blind People in Autonomous Walking", IEEE Journal 2017.
- Mrs . Shilpa Reddy K, Mounika S . K, Pooja K, Sahana N, "Text to speech for the Visually impaired", IRJCS Journal 2017.
- Mallapa D Gurav, Shruti S Salimath, Shruti B Hatti, Vijayalaxmi I Byakod, Shivaleela Kanade "A Reading aid for the Blind People using OCR and Open CV", IJSRET Journal 2017.
- AMD Alliance International, “The global economic cost of visual impairment.”, 2010. Internet document http://www.icoph.org/resources/146/The-GlobalEconomic-Cost- of-Visual-Impairment.html Last access Aug 22, 2015.
- L. Braille, “Nouveau procede pour representer des points la forme meme des letters, les cartes de geographie, les figures de geometrie, les caracteres de musiques, etc., a l‟usage des aveugles,” Institution royale des jeunes aveugles, 1839.