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宗廟祭禮樂과 宗廟祭禮佾舞를 調和롭게 一致시키는 方法 硏究 - 現行 宗廟祭禮樂과 『時用舞譜』의 「保太平之舞」를 중심으로
김룡 한국국악학회 2001 한국음악연구 Vol.30 No.-
Jongmyojeryeak, the No. 1 of intangible cultural asset of Korea has all the 500-year history of Chosun Dynasty contained in it and is the cultural heritage of the highest value and cultural importance. The UNESCO conference held in Paris, France this year declared it as 'the masterpiece of human words-of-mouth and intangible heritage,' placing it to the level of the world's admiration. This study intended to reconsider and illuminate Jongmyoilmoo of Jongmyojeryeak, the No. 1 of intangible cultural asset of Korea, assuming this kind of work would shed another new and fresh interpretation of traditional culture, Unlike other Korean traditional dances, Jongmyoilmoo has its details recorded in 『Siyongmoobo』which is one of the most valuable historic documents concerning Korean traditional dances, thus enabling itself to be preserved and inherited correctly. It surely falls under the category of Korea's cultural assets of a great historic and artistic value. An analysis was made on the composition systems of technical term and its arrangement found in 「Botaepyunggimoo」 in 『Siyongmoobo』which consists of today's irregular and regular long and short rhythms, in order to search for the ways to harmonize each performance of Jongmyojeryeak and Jongmyoilmoo, that is, to match the theories and the practices. The results of the study are as follows : 1. There should be 'Haphyung(centering upon chest)' at Gochooksamsung following the first beat of beginning music. And 'Hasu(let down)' with the right hand should be made in one note or two notes at the first dancing passage of the second beat. 2. 'Jeomyoo' and 'Hasu' with the left hand should both be made in two notes at the first dancing passage of development step. 3. 'Yangsugeogyon(put both hands on shoulder)' must be made in four or three notes from the left side with both hands at the first dancing passage of conversion step. 4. 'Bokpa(grasp belly)' to the front side with both hands should be made in two notes at the first dancing passage of conclusion step. 5. Every last technical term of each passage including 'Hasu' of introduction step, 'Hasu' of development step, 'Yangsuhasu(let both hands down)' of conversion step, and 'Haphyung' of conclusion step should be made in one note or two notes whether it's an independent dancing passage or complex one. 6. Every technical term at the other middle dancing passage should have two core notes from which one + or - note will be made. 7. The most important and last step to harmonize dance and music as one is to decide the bar of three notes among the bars of three or four notes which can be an independent or a complex dancing passage in any piece.
Design and Implementation of Dynamic Recommendation Service in Big Data Environment
김룡,박경혜 한국데이터전략학회 2019 Journal of information technology applications & m Vol.26 No.5
Recommendation Systems are information technologies that E-commerce merchants have adopted so that online shoppers can receive suggestions on items that might be interesting or complementing to their purchased items. These systems stipulate valuable assistance to the user’s purchasing decisions, and provide quality of push service. Traditionally, Recommendation Systems have been designed using a centralized system, but information service is growing vast with a rapid and strong scalability. The next generation of information technology such as Cloud Computing and Big Data Environment has handled massive data and is able to support enormous processing power. Nevertheless, analytic technologies are lacking the different capabilities when processing big data. Accordingly, we are trying to design a conceptual service model with a proposed new algorithm and user adaptation on dynamic recommendation service for big data environment.
복수카메라 및 Ray-based Importance Sampling을 이용한 실시간 비행체 추적
김룡해,정문호,이기서,Jin, Longhai,Jeong, Mun-Ho,Lee, Key-Seo 한국전자통신학회 2013 한국전자통신학회 논문지 Vol.8 No.6
In this paper, we focus on how to calibrate multi-cameras easily and how to efficiently detect quad-copters with small-numbered particles. Each particle is a six dimensional vector that is composed of 3D position and 3D orientation of a quad-copter in the space. Due to curse of dimensionality, that leads to explosive computational costs with a large amount of high-dimensioned particles. To detect efficiently, we need to put more particles in very promising spaces and few particles in other spaces. Though computational cost is lowered by minimizing particles, in order to track a quad-copter with multiple cameras in real-time, multiple images from the cameras should be synchronized and analyzed. Therefore, lots of the computations still need to be done. Because of this, GPGPU(General-Purpose computing on Graphics Processing Units) is implemented for parallel computing. This method has been successfully tested and gives accurate results in practical situations. 본 논문은 복수카메라 기반 실시간 비행체 검출 및 추적하는 방법에 대해서 설명한다. 정밀하게 가공된 보정체를 필요로 하지 않는 복수카메라 자기보정 기법에 스케일을 추가하여, 간편하게 각 카메라 내부변수와 카메라 사이의 상대위치 관계를 구하는 복수카메라 보정기법을 제시한다. 비행체 검출 및 추적은 파티컬 필터링 기법을 적용하여 수행하는데, 적은수의 샘플로도 비행체 검출을 빠르고 정확하게 할 수 있도록 하는 Ray-based Importance Sampling을 고안했다. 3차원 공간을 일정한 크기의 격자구조로 나누고, 영상 특징점과 사영기하학을 이용하여 이 격자구조 위에 비행체의 이산적인 분포를 구한다. 이 분포에 따라 격자를 샘플링하고, 또 다시, 격자의 중심을 평균으로 하는 가우시안 분포로부터 비행체의 위치를 샘플링 한다. 이 두 단계의 샘플링을 통해 비행체가 있을 가능성이 높은 영역에 샘플을 집중적으로 분포시킬 수가 있다. 그리고, 복수의 카메라 영상으로부터 실시간으로 동기화된 영상 특징점을 검출하기 위하여 GPGPU를 이용한 병렬 영상처리 시스템을 구현하였다. 실험을 통해 제안한 방법의 유효성을 확인할 수 있었다.