Journal of the Korean Institute of Telematics and Electronics B (전자공학회논문지B)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Image Alignment Algorithm for an OCR System and its Hardware Implementation

OCR 시스템을 위한 화상 정렬 알고리즘과 고속 하드웨어 구현

  • 최완수 (대림공업전문대학 전자과) ;
  • 최진호 (고려대학교 전자공학과) ;
  • 정윤구 (한국과학기술연구원 시스템 공학연구소) ;
  • 김수원 (고려대학교 전자공학과)
  • Published : 1993.08.01
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Abstract

This paper presents a hardware for image alignment based on proposed new algorithm which can align a small misaligned document image simply by one transformation with a parallel shifting of pixels. This hardware is simulated with VHDL and estimated to be about 65 ms to align an image made up of 380 by 480 pixels. Also, we will demonstrate the effectiveness of the proposed image alignment algorithm in OCR system by comparing its characteristics with those of the existing image rotation algorithms.

Keywords