Design and Implement of Reading System for the Blind
Reading materials for the blind are scarce,and digital reading technology shows great potential to solve this problem.Based on Tesseract-OCR technology,a braille reader is designed,which is easy to operate and deployed on Raspberry Pi platform.The system firstly captures book images through a camera,then performs edge detection,image preprocessing,text recognition,speech synthesis and other steps,and finally outputs speech through a bluetooth speaker so that blind users can read by hearing.Aiming at the problem of the influence of image pixels on recognition accuracy,a text image super-resolution technology is introduced in the image preprocessing stage.The experimental results demonstrate that the application of this super-resolution technology significantly improves the quality of text images and effectively improves the text recognition accuracy of Tesseract.
Tesseract text recognitiontext image super-resolutionspeech synthesisedge detection
万方数据
维普
