Title :
Reader instrument of basic texts to the teaching of blind people
Author :
Leija, L. ; Hernández, P. ; Santiago, S.
Author_Institution :
Dept. Electrica, CINVESTAV-IPN, Mexico City, Mexico
Abstract :
The development of a reader instrument for translating text to speech is presented. The instrument uses commercial components such as a multimedia computer, a flat bed scanner unit, a control and recognition of characters program. The instrument is used to read printed text by blind people. The character recognition is based on a block of preclassification and artificial neuronal backpropagation network. The characters are read through the scanner text from elemental teaching books, and the program locates the words recognized in a base of recorded words to emit them via voice through multimedia systems. The preclassification divides the lower case by its characteristics in the following four groups: (1) acenorsvuxz. (2) bdfhklnˆit. (3) gjpqy. 4) mw. The prototype developed has a limitation; it only works with text books used in elemental education. The type of character is Arial with size of 12 pixels and a performance of 93%
Keywords :
backpropagation; character recognition equipment; computer aided instruction; handicapped aids; image scanners; multimedia computing; neural nets; speech synthesis; speech-based user interfaces; activation function sigmoid; artificial neuronal backpropagation network; basic texts; blind people teaching; character recognition program; flat bed scanner unit; multimedia computer; preclassification block; reader instrument; text to speech translation; Backpropagation; Books; Character recognition; Education; Instruments; Multimedia systems; Prototypes; Speech recognition; Speech synthesis; Text recognition;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802666
