http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Vision-Based Finger Action Recognition by Angle Detection and Contour Analysis
이대호,SeungGwan Lee 한국전자통신연구원 2011 ETRI Journal Vol.33 No.3
In this paper, we present a novel vision-based method of recognizing finger actions for use in electronic appliance interfaces. Human skin is first detected by color and consecutive motion information. Then, fingertips are detected by a novel scale-invariant angle detection based on a variable k-cosine. Fingertip tracking is implemented by detected region-based tracking. By analyzing the contour of the tracked fingertip, fingertip parameters, such as position, thickness, and direction, are calculated. Finger actions, such as moving, clicking, and pointing, are recognized by analyzing these fingertip parameters. Experimental results show that the proposed angle detection can correctly detect fingertips, and that the recognized actions can be used for the interface with electronic appliances.
이대호 대한의사협회 2016 대한의사협회지 Vol.59 No.2
Multidisciplinary care service has started on August 1, 2014 after Korean health authority’s decision of its approval and reimbursement. However, despite its early success, it raises some issues caused by less flexibility of the model, which might limit further expansion and development of the model or even establishment of a new model. It has only two types of 4-expert and 5 or more-expert services. It is also reimbursed only when given in outpatient clinic, and much worse, as of face-to-face service. Then, I will review the issues raised so far and try to suggest possible solutions, for example, sort of multidisciplinary consultation service for in-patient multidisciplinary care service. The issues and solutions will engender a lot of controversy, but to discuss about them might be the first step to further develop the service. In addition, I will briefly touch on expected effects of the service, including improvement of cancer care, such as shortening the time from the first visit to diagnosis and treatment or speed-up of diagnosis process, enhancement of cancer patients’ satisfaction and so on, which might be helpful to guide future direction of the multidisciplinary care service. The commencement of multidisciplinary care service is an important milestone in cancer care as well as medical system of Korea. However, it is not the best and perfect one but was just chosen as one of champion models. It has much room for improvement or there is still more work to be done to make it better.
이대호,박영태 대한전자공학회 2006 電子工學會論文誌-TC (Telecommunications) Vol.43 No.9
A number of researches on vision-based traffic monitoring system have been carried out. Most of traffic monitoring schemes belong to one of two categories: analyzing of entire traffic scene and examining of local region. However, the proposed methods suffer from severe performance deterioration when applied in different operating conditions because of the loss of robustness. This paper is aimed at surveying various methods proposed and analyzing the advantages and disadvantages of these methods. Also we propose and investigate appropriate approaches to solve the problems in specific applications. 영상 정보를 이용한 교통 모니터링 시스템에 관한 많은 연구가 이루어졌다. 대부분의 교통 모니터링 기술은 전체 영상을 분석하는 기법과 국부 영역을 검사하는 기법으로 구분된다. 하지만, 제안된 대부분의 기법들은 동작 환경이 변화할 경우 강건성의 결여로 인해 성능이 급격히 저하하는 문제점을 갖고 있다. 본 논문에서는 기존의 논문에서 제안되었던 다양한 기법들의 특성을 조사하고, 장점과 단점을 분석한다. 또한 각 응용 분야마다 영상 처리를 이용하는 기법들이 가지고 있는 문제점들을 해결할 수 있는 적절한 방법을 고찰한다.
Region-based Corner Detection by Radial Projection
이대호,SeungGwan Lee,최진혁 한국광학회 2011 Current Optics and Photonics Vol.15 No.2
We propose a novel method which detects convex and concave corners using radial projection. The sum of two neighbors’ differences at the local maxima or minima of the radial projection is compared with the angle threshold for detecting corners. In addition, the use of oriented bounding box trees and partial circles makes it possible to detect the corners of complex shapes. The experimental results show that the proposed method can separately detect the convex and concave corners, and that this method is scale invariant.
Precise Detection of Car License Plates by Locating Main Characters
이대호,최진혁 한국광학회 2010 Current Optics and Photonics Vol.14 No.4
We propose a novel method to precisely detect car license plates by locating main characters, which are printed with large font size. The regions of the main characters are directly detected without detecting the plate region boundaries, so that license regions can be detected more precisely than by other existing methods. To generate a binary image, multiple thresholds are applied, and segmented regions are selected from multiple binarized images by a criterion of size and compactness. We do not employ any character matching methods, so that many candidates for main character groups are detected; thus, we use a neural network to reject non-main character groups from the candidates. The relation of the character regions and the intensity statistics are used as the input to the neural network for classification. The detection performance has been investigated on real images captured under various illumination conditions for 1000vehicles. 980 plates were correctly detected, and almost all non-detected plates were so stained that their characters could not be isolated for character recognition. In addition, the processing time is fast enough for a commercial automatic license plate recognition system. Therefore, the proposed method can be used for recognition systems with high performance and fast processing.
인삼포지(人蔘圃地)의 토양화학성(土?化?性)이 생육(生育) 및 수량(收量)에 미치는 영향(影響)
이대호,육창수,한강완,남기열,배효원,Lee, Il-Ho,Yuk, Chang-Soo,Han, Kang-Wan,Nam, Ki-Yeui,Bae, Hyo-Won 한국토양비료학회 1981 한국토양비료학회지 Vol.13 No.4
인삼(人蔘)의 생육(生育)에 적합(適合)한 토양화학성분별 함량(含量)과 이들과 인삼(人蔘)의 생육(生育) 및 수량(收量)과의 관계를 구명(究明)코저 인삼주산지(人蔘主産地) 강화외(江華外) 4개군(個郡)의 농가포장(農家圃場)(홍삼포(紅蔘圃)) 49개소(個所)을 조사(調査)한 결과(結果)를 요약(要約)하면 다음과 같다. 1. 인삼(人蔘)의 생육(生育) 및 수량(收量)과 상관관계가 있는 화학성분별 함량(含量)은 우량포지(優良圃地)에서 CEC가 8.9~14.5me/100g, 유기물(有機物) 1.5~3.5% 유효인산 45~257ppm, 가리(加里) 0.34~0.55me/100g이었고, K/P비(比)는 0.002~0.012이었다. 2. 이들중 CEC, 유기물(有機物), 치환성가리(置換性加里) 및 K/P비(比)는 수량(收量)과 정상관을 CEC는 생육상황과 유의성(有意性)있는 상관을 나타냈으며, 유효인산은 수량(收量)과 부(負)의 상관을 보여주었다. 3. 임삼포지(人蔘圃地)의 K/P비(比)와 수량(收量)과는 고도(高度)의 정상관을 보여주어 인삼엽중(人蔘葉中)의 K/P비(比)와 수량(收量)과의 밀접(密接)한 관계가 있음을 보여 주었다. To find the relationship between the adequate amount of soil chemical components and ginseng growth including root weight, 49 farmer's red ginseng field from the main ginseng growing area were studied intensively. 1. The ranges of soil chemical component of high yield ginseng field were 8.9 to 14.5 me/100g of CEC 1.5 to 3.5% of organic matter, 45 to 257 ppm of available phosphorus, 0.34 to 0.55 me/100g of potassium and 0.002 to 0.012 of K/P ratio respectively. 2. Higher content of organic matter, CEC, exchangeable potassium and higher rate of K/P were observed in soils of ginseng field with high yield than in soils of low one. The CEC content in soil was positively correlated with the plant growth, and available phosphate content in soil was negatively correlated with yield of ginseng root. 3. There was highly positive significant correlation between root yield of ginseng and K/P ratio of ginseng soil. Similar result also observed between root yield of ginseng and K/P ratio of upper part of ginseng plant.
초등 정보통신윤리 교육수준 제고를 위한 3중 연계교수학습모형 연구
이대호,조기환 한국정보교육학회 2011 정보교육학회논문지 Vol.15 No.3
정보통신은 편리하기도 하지만 일면 심각한 부작용이 존재한다. 특히, 가치관이 정립되지 못한 초등학생들의 정보통신윤리 확립은 매우 중요한 과제라고 할 수 있다. 본 논문에서는 학생들이 가장 일반적으로 접하고 있는 대표적 방법인 수업을 통해 초등 정보통신윤리 교육수준을 제고하고자 3중 연계교수학습모형을 제안한다. 3중 연계교수학습모형은 임의의 수업모형 3가지를 선택하여 차시별로 내용을 연계하여 각각의 수업시간에 독립적으로 적용하는 형태이다. 수업모형 3가지는 수업자가 전달하고자 하는 내용에 맞게 선택가능한 형태이다. 본 실험에서는 배려모형, 가정연계모형, 가상체험모형을 연계하였다. 실험은 동일한 조건속에서 적용되는 모형을 달리하여 실행한다. 정보통신윤리 수준 제고에 미치는 교육적 효과를 비교 분석하여 3중 연계교수학습모형이 단일 교수학습모형에 비하여 학생들의 정보통신윤리 함양 및 실천능력을 신장시키는데 유의미한 효과가 있음을 보이고 있다. Information and communication brings us some degree of convenient but also serious side effects. Especially, information and communication ethics is an important issue for elementary school children who are early stage in moral value. This paper proposes a triple-connected teaching and learning model. which can be applied to the elementary school children. in order to improve the educational level. The model is formed by selecting three discretionary teaching models, and applying independently them into the different classes with linking the contents for each class. A teacher can choose the teaching models based on what he wants to teach. Caring model, Home-Connected model and Simulation modell were linked in our experiment. Experiments were conducted in the same condition but different learning models, Then, an educational effect was compared and analyzed in the educational level improvement point of view, between the Triple-connected teaching and learning model and the single teaching and learning model.