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길운용,강신일 公州大學校스포츠科學硏究所 1998 스포츠科學硏究所論文集 Vol.- No.12
This study was made to show efficient methods in teaching “Vaulting Box”. For this study, students were devided into four groups. And each group was made up of45 third graders of Tea-chon girls' middle school. Four methods for each group are follows ; The first group : Massed method The second group : Distributed method The third roup : Whole method The fourth group : Part method And four basic skills of “Vaulting Box” were taught four groups by four methods. They are straddle vault, squat vault and forward roll on the vaulting box, and neck sping. After I taught four groups four basic skills and compared the first and second group with the third and fourth group, I reached a following conclusion. 1. In case squat bault and front roll, neck spring, marks were better by Massed method than Distributed method in result (P≤0.05) 2. In case of straddle vaultleg, squalt vault, forward roll, neck spring, marks were better by Part method than by Whole method in result (P≤0.05)
포토그래메트리 기반 페이셜 캡처를 통한 버추얼 휴먼 제작 및 활용
길운,강해도,저우자니,조성훈,윤태수 한국융합신호처리학회 2024 융합신호처리학회 논문지 (JISPS) Vol.25 No.2
최근 들어 인공지능, 컴퓨터 그래픽기술이 진화하면서 영화,광고, 방송, 게임, SNS 등 여러매체를 통해 다양한 가상휴먼이 등장하고 있다. 특히, 가상인플루언서를 중심으로 한 광고 마케팅 시장에서 가상휴먼은 시간과 비용 측면에서 기업의 중요한 홍보수단으로 이미 중요성이 입증된 상태이다. 국내는 가상 인플루언서 시장의 태동기 단계로 대기업 및 스타트업 경계없이 가상인플루언서 관련 신규 서비스를 출시 준비를 하고자 하나, 그 개발 프로세스가 공개되어 있지 않아 많은 비용을 지불해야 하는 상황이다. 이런 기업의 요구사항과 애로사항을 해결하기 위해 본 논문에서는 실사기반의 가상휴먼을 제작하기 위한 포토그래메트리기반 페이셜 캡춰 시스템을 구현하고, 이를 활용한 가상휴먼 모델링 및 활용사례에 대하여 고찰한다. 페이셜 캡처 후 실제 애니메이션이 가능한 과정까지의 복잡한 CG 작업 단계를 간소화할 수 있는 언리얼엔진기반의 메타휴먼 모델링을 통해 비용과 품질면에서 최적의 워크플로우에 대해서도 고찰하고, 또한 인스타그램 등 SNS마케팅에 활용한 사례에 대해서도 소개한다. 언리얼엔진기반의 워크플로우를 통해 기존의 CG작업과의 비교를 통해 제안한 워크플로우의 성능을 입증한다. Recently, advancements in artificial intelligence and computer graphics technology have led to the emergence of various virtual humans across multiple media such as movies, advertisements, broadcasts, games, and social networking services (SNS). In particular, in the advertising marketing sector centered around virtual influencers, virtual humans have already proven to be an important promotional tool for businesses in terms of time and cost efficiency. In Korea, the virtual influencer market is in its nascent stage, and both large corporations and startups are preparing to launch new services related to virtual influencers without clear boundaries. However, due to the lack of public disclosure of the development process, they face the situation of having to incur significant expenses. To address these requirements and challenges faced by businesses, this paper implements a photogrammetry-based facial capture system for creating realistic virtual humans and explores the use of these models and their application cases. The paper also examines an optimal workflow in terms of cost and quality through MetaHuman modeling based on Unreal Engine, which simplifies the complex CG work steps from facial capture to the actual animation process. Additionally, the paper introduces cases where virtual humans have been utilized in SNS marketing, such as on Instagram, and demonstrates the performance of the proposed workflow by comparing it with traditional CG work through an Unreal Engine-based workflow.
길운형(WH Kil),정두용(DY Chung),최금숙(KS Choi),강영호(YH Kang) 대한산부인과학회 1983 Obstetrics & Gynecology Science Vol.26 No.4
A case of hydatidiform mole with coexistent fetus, an extremely rare condition, is reported. It was unsupected until the spontaneus delivery had been done at the 20th week of pregnancy. A review of literature on the hydatidiform mole with coexistent fetus is made briefly.
최금숙(KS Choi),길운형(WH Kil),김현철(HC Kim),강영호(YH Kang) 대한산부인과학회 1983 Obstetrics & Gynecology Science Vol.26 No.5
Among the total number of 1927 deliveries at Kyungpook National Unⅳersity Hospital during five years from Jan.1 1978 to Dec. 31 1982 fetal body weight 3800 gm or more were 100 cases. Their clinical characteristics were analysed various aspects and results obtained were summarized as follows. Frequency of excessⅳe sized baby, 3800gm or more was l00 cases out of 1927 total deliveries revealed 5.2%. Among their mean body weight by gestational age at delivery and standard deviation, the biggest were 4155gm at 42 weeks gestation and ±311.4gm at 39 weeks gestation with fetal weight 3998gm. There was no significant sex difference, revealed male 48.0% whereas female 52.0% respectively, The most frequent occurance of excessⅳe baby by gestational age was gestational age at 40~41 weeks or 60.0%. There was tendency that the more was the parity, the more was the frequency. ln relation between maternal age and fetal body weight, the age group 25~29 occupied 57.0%, the most ln medical complications of excessive baby, anemia was the most frequently encountered with 5.0% and followed by overt diabetes with 4.0%. ln obstetrical complication PROM was the most frequent with 23.2% followed by pre-celampsia 15.0%. Presentation of excessive baby, cephalic presentation was overwhelming with 86.0%. Concerning to the method of delivery non specific delivery was the most frequent with 44.0% followed by C-section with 36.0% Among indications of C-section for excessive baby CPD was the leading cause with 55.6%, previous C-section with 19.4% was the second. Indication of CPD in excessive baby was also much higher than that of control group. The perinatal mortality rate was 9.0% and it was thought unusual high rate. Among 9 cases perinatal death 7 cases were still birth with 3 cases of uterine rupture. Neonatal death was 2 cases.