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Fuzzy 推論을 이용한 온라인 筆記體 한글문자 認識에 관한 연구
최용엽,최갑석,Choi, Yong-Yub,Choi, Kap-Seok 대한전자공학회 1990 전자공학회논문지 Vol. No.
本 論文에서는 퍼지推論을 利用한 온라인 筆記體 한글文字의 認識에 관하여 硏究하였다. 筆記者 마다의 筆體變動으로 인한 애매성을 解決하기 위해, 각 스트로크間의 相對位置情報마다 作成되는 生成 을 퍼지推論에 適用하여 筆記體 한글을 認識하였다. 處理시간을 短縮하기 위하여, 入力文字의 스트로크 數에 따라 미리 分類한 基準文字의 小群을 선택하였고, 이 小群의 文字들과 入力文字와의 거리에 許容限果를 주어 基準文字들을 감소시켜 퍼지推論에 적용하였다. 10人으로부터 수집된 39990字의 筆記體 한글文字에 대하여 實驗한 結果, $99.5{\%}$의 認識과 0.4초/文字의 平均處理 速度를 얻었다. This paper studies on an on-line recognition of handwritten Hangeul characters using the fuzzy inference. To solve the ambiguity due to the variations of writing style by writes, these handwri-tten characters are recognized by means of the fuzzy inference on the production rule which is generated with every relative position information between strokes. In order to reduce the processing time, a subgroup which is previously classified with the number of strokes of reference characters is selected according to the number of strokes of input character, and the tolerance limit of distances between input character and reference characters of a subgroup is introduced to reduce the reference characters which is applied to the fuzzy inference. Experimental results for handwritten Hanguel charters 3990 by 10 writers show the recognition rate of $99.5{\%}$and the average processing time of 0.4sec/character.
Hough변환을 이용한 차량번호판 영역추출에 관한 연구
崔容燁 湖西大學校 工業技述硏究所 1988 工業技術硏究所論文集 Vol.7 No.-
In this paper, an extracting method of car number plate by Hough transform is st-udied for preliminary stages of car number recognition. Especially, using the Hough transform of a restricted parameter plane, the memory amounts and the processing time, the problems which the Hough transform has, is suff-iciently improved and it is confirmed that the number plate is extracted applying its features. From the experiments on 50 input images data, the extracting result is about 60 %, and the processing time is required 4 minutes on 1 input image data using C language in IBM-PC/AT.
최용엽 湖西大學校 工業技術硏究所 1994 工業技術硏究所論文集 Vol.13 No.-
This paper studies on on-line recognition of handwritten Hangeul characters using the fuzzy theory. The handwritten Hangeul characters are recognized by application of fuzzy theory to the production rules which do Fourier transformation to time serial data in X-Y coordinates and obtain the information of zero order, first order, and second order coefficients from the transformation. The result of experiment shows that it is possible to apply fuzzy theory to the handwritten Hangeul characters recognition.
웨트 스테이션 모니터링을 위한 그래픽 사용자 인터페이스 기반의 화면 제어 방법에 관한 연구
한광록,임성락,최용엽 湖西大學校工業技術硏究所 1997 工業技術硏究所論文集 Vol.16 No.-
We describe the method of window control to monitor wet station based on GUI (graphic user interface) and operator is able to contol and monitor the wet station by GUI environment. The monitoring system manages database, communicates with some tasks through shared memory and displays the results by graphic device. We implement the monitoring windows of robot movement, lot tracking, recipe register and process start, and introduce animation techniques in order to represent the various states of chemical processing bath, so operator can visually monitor all the processes and alarm status at a glance.
X-Band 영상의 Edge 검출 및 개선에 관한 연구 : A Study on Edge Detection & Enhancement in Image of X-Band
최용엽,윤동한 國立金烏工科大學校附設生産基術硏究所 1988 産業技術開發硏究 Vol.4 No.-
In this paper, we have discussed edge detection that suppressing noise, smoothing edge using three-type median filters at radar image. At radar brightness of reflection wave depend on conditions of weather, properties of objects, shapes, positions and sizes. And, image occurs interference which mixed with scattering of rain, waves, etc. Proposed three-type median filters (SQUARE, CROSS, X-SHAPE) that preserving edge in an original image while reducing random noise was introduced for image enhancement and edge detection at radar image. Since radar image have a number of parts of curve, we compared results produced by edge detection operater produced for improving the parts of curve with results of using edge detection methods of existing, such as Roberts, Sobel, Prewitt, Laplacian and Kirch. According to results of this experiments, median filtered image is less noise than original image and preserving edge in an original image. And, edeg detection operater proposed in this paper, sharpening detected edge rather than existing methods. Finally, it was appeared that median cross filter among three-type median filters have best results.
반도체 제조장비와 호스트간의 over-lapped I/ O 를 이용한 직렬통신 프로그램 구현
최용엽 한광톡,임성탁 호서대학교 공업기술연구소 1997 공업기술연구 논문집 Vol.16 No.1
반도체 장비 통신에 사용되는 표준 통신인 SECS (Semiconductor Equipm ent Comm unication Standard) 프로토콜 중에서 메시지 전송 계증의 형식에 따른 SECS- 1 을 RS-232C 포트를 통해 반도체 제조장비와 호스트간에 직렬통신을 하여 왔다 . 그러나 이 방식은 I/O 가 끝날때 까지 대기 여야 하는 문제를 안고있다 . 이 논문에서는 이를 개선하기 위해 over ᅭ lapped 1 / ᄋ를 이용하였으며 타이머 메시지를 이용하기 위한 콜백 함수는 타이머 클래스를 통해 간접적으로 공유 메모리에 접근시키므로서 PCCOM를 대체 할 수 있는 이들의 통신 모듈 프로그램을 구현하였다 .
최용엽,김수희 湖西大學校工業技術硏究所 1997 工業技術硏究所論文集 Vol.16 No.-
In this research, a prototype system which converts a text document into an html hypertext document is developed. Given a text document, this system examines the hierarchical structure of the document and create a corresponding hypertext document with hierarchical links. Users can navigate the hypertext system for information retrieval using a web browser.
崔容燁,崔甲石 明知大學校 産業技術硏究所 1988 産業技術硏究所論文集 Vol.7 No.-
This paper studied a method of coordinate transform in the digital image processing. The coordinate transform have to be consider in the case of increment of pixel number after transform and the condition of preservation of image information before transform. So, this paper discussed the sampling method of coordinate that can be preserved original information and discussed the methodthat has been corresponded with coordinate by radius of sampling number of rotated direction. The results of computer simulation using proposal method of coordinate transform is confirmed good results.
반도체 제조장비와 호스트간의 over-lapped I/O를 이용한 직렬통신 프로그램 구현
최용엽,임성락,한광록 湖西大學校工業技術硏究所 1997 工業技術硏究所論文集 Vol.16 No.-
반도체 장비 통신에 사용 되는 표준 통신인 SECS(Semiconductor Equipment Comm unication Standard) 프로토콜 중에서 베시지 전송 계층의 형식에 따른 SECS-I을 RS-232C 포트를 통해 반도체 제조 장비와 호스트 간에 직렬통신을 하여 왔다. 그러나 이 방식은 I/O가 끝날때 까지 대기 하여야 하는 문제를 안고있다. 이 논문에서는 이를 개선하기 위해 over-lapped I/O를 이용하였으며 타이머 메시b지를 이용하기 위한 콜백 함수는 타이머 클래스를 통해 간접적으로 공유메모리에 접근시키므로서 PCCOM를 대체 할 수 있는 이들의 통신 모듈 프로그램을 구현 하였다.