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안석출,김명기 한국통신학회 1986 韓國通信學會論文誌 Vol.11 No.5
This paper proposes a new method for the normalization of shape pattern based on Gaussian probability density function to increase automatic recognition rate of hand-written Hangul pattern. The sizes of hand-written Hangul pattern are detected from the input images, and pattern sizes are normalized by two variables interpolation. The pattrn shapes are noralized by letting correlation coefficients equal to zero. It is analyzed theoretically and verified through computer simulation for the relation between input image and normaized shape pattern. It is confirmed that this method is effective and reasonable for deformed hand-written Hangul pattern. Experimental resu results show that the declination. size and stroke width of hand-written Hangul patterns are mych improved. 한글문자패튼의 인식율을 향상시키기 위해서 Gaussian 확율밀도 함수를 이용한 형태정규화의 한 방법을 제안한다. 제안된 방법은 입력패튼의 패튼 영역을 추출하여 2변수보간법으로 패튼의 크기를 정규화 한 후, 크기 정규화된 패튼의 상관계수를 0으로 하는 선형변환을 시켜 문자패튼의 기하학적 기울어짐 변형을 정규화시켰다. 입력패튼과 형태정규화된 패튼간의 관계를 이론적으로 해석하고 컴퓨터 시뮬레이션을 통해서 이론의 타당성을 확인하였다.
CC-Ⅱ(+)를 利用한 正弦波 發振回路 構成에 관한 硏究
안석출 釜山工業大學校 1981 論文集 Vol.22 No.2
Current converyor have been introduced by Smith and Sedra, and many possible applications have been explored during the past few years. In this paper, a single grounded resister adjusts circuit for oscillation condition and single capacitor controls the oscillation frequency without affecting the oscillation condition. Experimental results are coincident with theoretical values within 5% of errors.