CAM-Shift 알고리즘을 이용한 MPEG-4 Visual의 VOP(Video Object Plane) 추출

황의성,정재진,김태형,김두영 동아대학교 정보기술연구소 2006 情報技術硏究所論文誌 Vol.14 No.1

MPEG-4 for an object base coding after extracting the region from image, the coding for a real-time requirements is quick and must be accurate. The object crisis algorithms of existing calculation quantity are many and with image transformation or video conferencing system to same real-time application they are not suitably. The object real-time tracking it tried to apply the CAM-Shift algorithm which is possible from the dissertation which it sees consequently. Tracking the object which it moves or wants the VO where (Video Object) tracking the user wants in bounding box form defines the object where is started. Tracking the object of after uses a CAM-Shift algorithm and are extracted and the VOP with the VO which it is composed. It defines one bounding box with the method which is proposed consequently about lower only one VOP there to be it will be able to compose, it becomes.

GIS 기반의 유역물수지 분석모형 개발

황의호,김계현,박진혁,이근상 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.4

기존 새만금유역의 물수지분석은 유역전체를 단일유역으로 단순화하여 가지야마식으로 산출한 유출량을 기초로 행해졌으나, 새만금유역은 용수공급체계가 복잡 다양하고 향후 임의의 지점에서물수지요소가 변경될 때 탄력적으로 적용하기엔 어려움이 있다 본 연구에서는 새만금유역에 적합한 물수지분석모형 적용을 위하여 수개의 물수지 단위소유역으로 구분하고 각각의 소유역별 수자원의 개발과 이용에 대해 물수지를 상세분석할 수 있는 GIS 기반의 유역물수지모형을 개발하였다. 유역의 물수지 상세 분석을 위하여 UML 다이어그램을 이용한 물수지모형의 추상 및 개년 설계, 용수공급체계 반영을 위한 하천망 구성, GIS 기반의 전처리 및 후처리 모듈 개발, 모형 보정 및 검증 등을 포함하는 연구를 수행하였다. 이러한 물수지분석모형은 수자원의 유출과정 해석을 통해 유역내 효율적인 수자원관리 방안을 수립할 수 있도록 지원이 가능하며, 사웅자로 하여금 유역의체계적인 수자원관리에 있어 수작업을 최소화하고 다원화된 모델 분석체계를 지원함으로써 보다 편리하고, 합리적인 수자원관리방안 수립에 지원이 가능할 것으로 사료된다. Existing Semangeum's water balance analysis simplifies whole basin to single basin and achieved volume of effluence that produce by Kajiyama way to foundation. But Semangeum is complicated and various rice-wine strainer supply system. And there is difficulty to apply as elastic when water balance element is changed at free point. Divided to unit possession station for suitable water balance analysis model application to Semangeum in this study. And developed basin water balance model of GIS base that can do details analysis is bite about development and transfer of an appropriation in the budget of basin water resources. Achieved study including abstraction and concept design that use UML (unified modeling language) diagram for details analysis, stream network composition for rice-wine strainer supply system application, preprocessing of GIS base and postprocessing module development, model revision and verification etc. Support of this water balance analysis model is available to establish efficient water resources administration plan through outward flow process analysis of water resources. And support is considered to be possible in more convenient and, reasonable water resources administration way establishment by minimizing manual processing in systematic water resources government official to user and support diversified analysis system.

Scale Invariant Feature Transform을 이용한 눈동자 영역 추출

정재진,황의성,주동현,김두영 동아대학교 정보기술연구소 2006 情報技術硏究所論文誌 Vol.14 No.1

This paper is the eye region which is used with confirmation element of face image it uses the SIFT and it extracting method proposes. The eye region image where becomes model and it composes the keypoint descriptor which is a SIFT result of the input image which it will extract. It uses the keypoint descriptor which and creates it composes a each feature vector, and the judgement where affine transform should have existed on after two feature points which adjusts with each other, against the feature point field which confront above half as the case eye region where the with each other same affine transform will exist it judged. There is not a test result learning process, more quickly recognition method of existing methods than the possibility of getting the result which extracts the region it was.

두부규격방사선사진에서 정상 sella turcica의 형태 및 크기에 관한 연구

최욱진,황의환,이상래 대한구강악안면방사선학회 2001 Imaging Science in Dentistry Vol.31 No.1

Purpose : To investigate the shape and size of normal sella turcica on cephalometric radiograms. Materials and Methods : Cephalometric radiograms of 200 orthodontic patients of age ranging 6-42 years were examined. All subjects were divided into 5 groups by age, the dimensional change of sella turcica was examined according to age, and the configurations of sella turcica floor, tuberculum sella, and anterior and posterior clinoid process were also observed. Results : The contours of sella turcica floor were flat type in 54% and concave type in 46%. The contours of tuberculum sella were right angle type in 55% and obtuse angle type in 44%; Acute angle type and plane type were very rare comprising 0.5%, 0.5% each. The configurations of anterior clinoid process were point type in 80% and round type In 20% of cases, and those of posterior clinoid processes were point type in 60% and round type in 40% of cases. The dimensional change of sella turcica according to age range had significantly positive linear trend to sella turcica length, height, and width until 25 years. After 26 years, no significant increase was found in sella turcica dimension. Especially, the sella turcica length had more proportional increase than that of sella turcica height and width. Conclusion : The results of this study revealed that the configuration of normal sella turcica was variable and the dimensional change of normal sella turcica had a linear tendency with age until 26 years.(Korean J Oral Maxillofac Radiol 2001;31:43-9)

解放 後 左右合作運動의 展開過程에 관한 硏究

兪光震,黃儀敍 東國大學校 1995 東國論叢 Vol.34 No.-

After Liberation of the Korean Peninsula, August 15, 1945, the United States and the Soviet Union Armed Forces were stationed on the North and the South Korea being the boundary line of the 38th Parallel. For the solution of this Korean problems, the United States and Soviet Union offered proposals of Trusteeship. Because the failure of the agreement between the U.S. and the Soviet Union in trusteeship consensus, the 38th parallel was constructed the real wall. As the greatest matter of the Korean people the time was the building of the Unified Nation States, that matters required the international cooperation, reopening the Joint Commission. They required the wide gathering of the inter-nation political leaders and groups so that the Joint Commission reopened, this mission was operated the Right and Left wing coalition Movement groups. The purpose of the Coalition Movement was the the building of the Unified Nation States in Korea, through the consensus of the international political groups and leaders. This Study focuses on the process of the Coalition Movement after liberation in Korea. The process of the Coalition Movement was, the first step(1946.5-1946.10): Starting of the Coalition Movement and consensus of the coalition principles, the second step(1946.10-1946.12):Opening of Korea-U.S. Common Conference(the agenda-the pending bills of the time) and establishment of the Interim Legislative Assembly of the south Korea under the USAMGIK, the third step(1947.1-1947. 12: Reopening and rupture of the second Joint Commission and disassembling of the Coalition Committee. The Coalition Movement ended in failure on account of the negative attitudes and the disturbances of the extreme rights and the extreme lefts, but the Coalition Movement is still the historical manifestation in that the Korean Peninsula has continued the 38th parallel during 50 years, therefore this movement get a lot of suggestions in the Reunification of Korea.

인구구조와 재분배적 재정지출

김의섭,황진영 한국경제학회 2006 經濟學硏究 Vol.54 No.1

遺傳子燥作을 이용한 사람 血痕의 個人識別에 관한 硏究

文國鎭,金鍾悅,黃迪駿,朴宜雨 大韓法醫學會 1991 대한법의학회지 Vol.15 No.1

The DNA fingerprinting for individual identification using legal medical evidence has been recognized to be one of the most excellent and usable methods. Therefore, an experiment was performed to verify the possibility of obtaining DNA fingerprints from a bloodstain, and to examine the effects of the common environmental conditions, such as the type of materials which the bloodstains have dried on relative humidity (65% and 98%), ultraviolet rays, infrared rays and temperature, on the DNA fingerprinting using bloodstains prepared in the laboratory. The following results have been achieved: 1. A high molecular weight DNA was able to be extracted from the bloodstain prepared for this experiment, and was possible to be used for individual identification upto a certain period of time. 2. Extraction of high molecular weight DNA in bloodstains which were formed on cotton, leather, wood, glass plate, and stainless steel was not likely to be any different. 3. The extracted DNA was easily affected by the variations in temperature, but humidity, ultraviolet and infrared rays did not have any significant effects.

하악과두에 발생된 골연골종의 증례보고

최욱진,황의환,이상래 대한구강악안면방사선학회 2000 Imaging Science in Dentistry Vol.30 No.2

The osteochondroma, also known as osteocartilagenous exostosis, is one of the most common benign tumors of the axial skeleton, but is rarely found in the facial bones. When present, the tumor is most often reported to affect the mandibular coronoid process. Osteochondroma of the mandibular condyle is extremely rare and may cause signs and symptoms like those seen in patients with temporomandibular joint dysfunction. Sometimes, differentiation between osteochondroma and condylar hyperplasia is not possible on histologic grounds alone, but the radiographic and intraoperative findings together are usually sufficient to establish a definite diagnosis, This report reviews the literature concerning osteochondroma, especially of the maxillofacial region, and describes a case of osteochon droma of the condyle. (Korean J Oral Maxillofac Radiol 2000; 30: 138-143)

분포 증발산량 산정 결과의 격자형 GIS 표현

박진혁,황의호,이근상,채효석 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.4

본 연구에서는 원격탐사나 지리정보시스템 등을 적응하여 ASCII형태의 수지표고자료와 원격탐사 자료를 이용하여 분류한 토지피복도를 이용하여 각 토지피복별로 알베도와 바로크계수, 증발효율 등을 이용할 수 있는 격자형 토지피복자료를 격자단위로 분할하여 모형의 입력값으로 이용하였기 때문에 유역의 공간적인 특성을 반영한 덜다 정확하고 신뢰성있는 자료의 구축이 가능했고, 기존의 열수지법을 이용하여 증발산량의 시 공간적인 분포양상을 계산할 수 있는 격자기반의 분포형 증발산량 추정 프로그램을 포트란언어고 개발하였으며, 격자형 증발산량 산정 모형은 향후 연될 격자기반의 분포형 강우-유출모형과 통합할 수 있도록 고려하였다. 또한, 격자기반의 계산으로 증발산량에 대한 유역내 특정지점에서의 시7)적 변화 양상과 공간적 분포 양상을 GIS상에서 나타낼 수 있도록 구성하였다. 모형의 적용성 검증을 위해서 비교적 정화한 기상자료와 수문자료를 보유하고 있는 일본의 쇼나이강 유역(532㎢)을 대상으로 적응한 결과, 유역 연평균 증발산량은 825.4mm로 나타났다. A Grid-based distributed evaporation prediction model which calculates temporal and spatial evaporation with a heat balance method was developed. And, the model was considered as the integration with distributed hydrological model in near future. This model was programmed by fortran language and used ASCII formatted map data of DEM (Digital Elevation Model) and land cover map extracted by remote sensing data. Also, temporal variations and spatial distributions of evaporation are presented by using GIS. To verify the applicability of the model, it was applied to the Shonai river basin (532㎢) which has sufficient meteorological and hydrological data, Japan. The result shows that the estimated mean annual evaporation was 825.41nm, and this value is estimated as suitable things in considering rainfall and discharge data in study area.

통행분포기법의 적용과 평가에 관한 연구

오재화,황의진,진용선 朝鮮大學校 建設技術硏究所 2001 建設技術硏究 Vol.21 No.1

This study has an object of searching for appropriateness in applying the trip distribution model by studying the changes of the character of parameter which the model contains and by analyzing and evaluating trip distribution technique out of four steps of pre-estimate technique for the traffic demand through computer simulation centering around Kwangju. Method of this study is investigating the basic theory for trip distribution model and with this grounding, I rearranged it as research data for trip distribution model compatible for Kwangju, using data such as research data on actual state, the statistics annual report and basic plan for traffic full equipment of Kwangju. So, The most stable measure of the type of trip distribution of Kwangju city was produced in Fratar and Detroit model, however, gravity model has a little bit low reliance in sharing of estimation and actual survey although it is astringent in short period.