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온라인 인식을 위한 한글 숫자 및 영문자 패턴의 상호 관계에 대한 고찰
김은원,홍성민,김용성,조원경 慶熙大學校 大學院 1989 高凰論集 Vol.5 No.-
In the character recognition of a field of pattern recognition, we can develop the office automation by the automated recognition of characters. This paper intend to inspect their reciprocal relations to recognize the pattern of Hangeul, Numerics, and English Alpabet. And, we intended to know of the feasible the stroke-unit processing, and had its useful results.
비디오 인코더용 양자화 및 역양자화기(Q_IQ unit) 모듈의 설계
김은원,조원경 대한전자공학회 1997 電子工學會論文誌, C Vol.c34 No.11
In this paper, quantization and inverse quantizatio unit, a sa component of MPEG-2 moving picture compression system, ar edesigned. In the processing of quantization, this design adopted newly designed arithmetic units in which quantization matrices and scale code was expressed with SD(signed-digit) code. In the arithmetic unit of inverse quantization, quantization scale code, which has 5-bits length, is splited into two pieces; 2-bits for control code, 3-bits for quantization data, and the method to devise quantization step size is proposed. The design was coded with VHDL and synthesis results in that it consumed about 6,110 gates, and operating speed is 52MHz.
은닉층 노드의 생성추가를 이용한 적응 역전파 신경회로망의 학습능률 향상에 관한 연구
김은원,홍봉화,Kim, Eun-Won,Hong, Bong-Wha 대한전자공학회 2002 電子工學會論文誌 IE (Industry electronics) Vol.39 No.2
본 논문에서는 역전파 신경회로망의 학습능률을 향상시키기 위한 방법으로 발생한 오차에 따라서 학습파라미터와 은닉층의 수를 적응적으로 변경시킬 수 있는 적응 역 전파 학습알고리즘을 제안하였다. 제안한 알고리즘은 역전파 신경회로망이 국소점으로 수렴하는 문제를 해결할 수 있고 최적의 수렴환경을 만들 수 있다. 제안된 알고리즘을 평가하기 위하여 배타적 논리합, 3-패리티 및 7${\times}$5 영문자 폰트의 학습을 이용하였다. 실험결과, 기존에 제안된 알고리즘들에 비하여 국소점에 빠지게 되는 경우가 감소하였고 약 17.6%~64.7%정도 학습능률이 향상하였다. This paper presents an adaptive back propagation algorithm that its able to enhancement for the learning efficiency with updating the learning parameter and varies the number of hidden layer node by the generated error, adaptively. This algorithm is expected to escaping from the local minimum and make the best environment for the convergence of the back propagation neural network. On the simulation tested this algorithm on three learning pattern. One was exclusive-OR learning and the another was 3-parity problem and 7${\times}$5 dot alphabetic font learning. In result that the probability of becoming trapped in local minimum was reduce. Furthermore, the neural network enhanced to learning efficient about 17.6%~64.7% for the existed back propagation.?
생성된 기준 영상과의 차를 이용한 정지 영상 압축에 관한 연구
김은원,김석호,조원경 慶熙大學校 大學院 1993 高凰論集 Vol.12 No.-
Digital image compression that is essential to reduce the transmission cost and the memory storage is necessary for image data processing. The method of transform coding that good quality of rebuilded image with more higher compression ratio is proposed and estimated. In this paper, we proposed reference block generation methods and improved JPEG base line system.
Work Sampling을 利用한 生産性 向上 方案을 위한 硏究
金銀源 조선대학교 경영경제연구소 1993 經營經濟硏究 = Management and economics research Vol.16 No.1
This thesis is a study on the work sampling which is one of the important parts in the fields of work measurement today. So, a method of study was 1. Apply a theory work sampling to assembly line and all operation analysis was executed. 2. Apply a theory result-factor to operation analysis of result and unnecessary movement course, unnecessary work-factors was removed. The result was A sample assembly line work composition was set up therefore, by all means being raised adaptable ability. The effect was raised productive elevation.