• 방송공학회논문지
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• 제23권6호
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• pp.914-924
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• 2018

본 논문에서는 마커기반의 증강현실을 이용한 유아 언어교육 안드로이드 응용프로그램을 구현하고자 한다. 동물을 나타내는 단어(명사) 마커, 크기/색상을 나타내는 단어(형용사) 마커, 동작을 나타내는 단어(동사) 마커를 퍼즐 형태로 조합하여 간단한 문장을 완성하면, 문장의 내용과 관련된 가상 콘텐츠를 보여준다. /예를 들어, 동물 마커를 카메라에 비추었을 때 해당하는 동물의 모습이 나타나고 부가적으로 동작 마커를 조합할 경우 동물의 모습이 해당하는 동작을 하는 애니메이션으로 변화한다. 사용자가 스마트폰 화면에 나타난 마커를 눌렀을 때 해당하는 단어의 소리를 출력하게 하여 청각적 효과를 더 했고 모델의 회전기능을 더해 애니메이션을 방향에 관계없이 볼 수 있게 하였다. 시각적, 청각적 자극을 통해 유아 스스로 언어 학습에 적극 참여 할 수 있게 유도함으로써 언어학습의 흥미를 높이고 단어의 의미 및 간단한 문장구조에 대한 교육효과를 증대시키는 것을 목표로 한다.

• 한국멀티미디어학회:학술대회논문집
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• 한국멀티미디어학회 2000년도 춘계학술발표논문집
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• pp.437-440
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• 2000

복지형 정보단말장치로 청각장애인과 건청인과의 커뮤니케이션은 지원하는 것을 목적으로 수화 애니메이션 생성시스템을 제안, 개발하고 있다. 이 시스템에서는 신체의 각 부위의 움직임을 주목한수화 단어 기술방식을 기초로 하여 컴퓨터그래픽(CG) 애니메이션 수화 단어 동작을 생성하고 있다. 이 애니메이션에 대하여 실제로 청각장애인을 대상으로 수화단어 100단어 대하여 평가실험을 행한 결과 평균76%의 인식율을 얻을 수 있었다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.1663-1667
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• 2003

This thesis is on tile development of LD(Laser Diode) chip tester and the control system based on graphical programming language(LabVIEW) to control the equipment. The LD chip tester is used to test the optic power and the optic spectrum of the LD Chip. The emitter size of LD chip and the diameter of the receiver(optic fiber) are very small. Therefore, in order to test each chip precisely, this tester needs high accuracy. However each motion part of the tester could not accomplish hish accuracy due to the limit of the mechanical performance. Hence. an image processing with machine vision was carried out in order to compensate for the error. and also a load test was carried out so as to reduce tile impact of load on chip while the probing motion device is working. The obtained results were within ${\pm}$5$\mu\textrm{m}$ error.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2002년도 추계 학술발표회 논문집
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• pp.51-60
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• 2002

In this study we developed the visualization scheme of spatial ground-motion measurements in real time by using DSS data. Even though this scheme itself is useful for national earthquake mitigation plans, this scheme could be served as the crucial core for constructing rapid earthquake damage evaluation system. DSS is the abbreviation of Data Subscription Service and this is the pre-assigned request for the seismic stations to send very limited brief data with high priority and negligible transmission load. In addition to visualize the damage area with intensity, the corresponding epicenter can be estimated roughly for quick event alarm. For the interpolation of spatially irregular PGA data, the program, named as surface. of GMT was used with NetCDF grid file format. Since the grid file is similar to a postscript file, the program, called as shading, was coded with C language by using Matpak library in order to convert grid files into image files.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
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• pp.679-684
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• 2000

This paper presents the development of system and program for a Parallel-Typed CNC Machine. The system consists of parallel manipulator, PC (Personal Computer), DMC (DSP Motion Controller), and machining tools. In order to control the manipulator, the program, which is implemented in "c/c++" language, involves inverse/direct kinematics, velocity mapping, Jacobian and etc. A controller computes the kinematic formulation in real-time and generates and motion by the DMC. A monitor, which has access to program and sensory information, displays the status of manipulator.nipulator.

• Structural Engineering and Mechanics
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• 제20권4호
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• pp.389-403
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• 2005

In the present paper it is aimed to perform the stochastic dynamic analysis of fluid and fluidstructure systems by using the Lagrangian approach. For that reason, variable-number-nodes twodimensional isoparametric fluid finite elements are programmed in Fortran language by the authors and incorporated into a general-purpose computer program for stochastic dynamic analysis of structure systems, STOCAL. Formulation of the fluid elements includes the effects of compressible wave propagation and surface sloshing motion. For numerical example a rigid fluid tank and a dam-reservoir interaction system are selected and modeled by finite element method. Results obtained from the modal analysis are compared with the results of the analytical and numerical solutions. The Pacoima Dam record S16E component recorded during the San Fernando Earthquake in 1971 is used as a ground motion. The mean of maximum values of displacements and hydrodynamic pressures are compared with the deterministic analysis results.

• 한국컴퓨터정보학회논문지
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• 제24권6호
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• pp.21-28
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• 2019

Recent years with the development of artificial intelligence and the success of the deep model, they have been deployed in all fields of computer vision. Action recognition, as an important branch of human perception and computer vision system research, has attracted more and more attention. Action recognition is a challenging task due to the special complexity of human movement, the same movement may exist between multiple individuals. The human action exists as a continuous image frame in the video, so action recognition requires more computational power than processing static images. And the simple use of the CNN network cannot achieve the desired results. Recently, the attention model has achieved good results in computer vision and natural language processing. In particular, for video action classification, after adding the attention model, it is more effective to focus on motion features and improve performance. It intuitively explains which part the model attends to when making a particular decision, which is very helpful in real applications. In this paper, we proposed a 3D dense convolutional network based on attention mechanism(ADD-Net), recognition of human motion behavior in the video.

• PNF and Movement
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• 제9권1호
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• pp.55-63
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• 2011

Purpose : This study was to investigate the application of Rhythmic Initiation(RI) in the respect of information processing in motor learning. Methods : A computer-aided literature search was performed in PubMed and adapted to the other databases and the others were in published books. The following keywords were used: Rhythmic Initiation, attention, memory, motor accuracy, feedback, motor learning, motor control, PNF, cognition. Results : The characterization of RI is rhythmic motion of limb or body through the desired range, starting with passive motion and progressing to active resisted movement. This study suggested that the relationship between of RI and motor learning through the respect of information processing, memory, attention and motor accuracy. Conclusion : Only Rhythmic Initiation, specifically focused on the effects of information processing approach, suggesting that RI can be positively influeced on sensory-perception, attention, memory, motor accuracy. however, it is unclear whether positive effects in the laboratory and field can be generalized to improve. In addition, sustainability of motor learning with RI remains uncertain.

• 대한전자공학회논문지
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• 제24권2호
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• pp.223-229
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• 1987

This robot programming system is designed for off-line programming of numerical controlled robot manipulator. This system consists of manipulation interpreter, world model manager, graphic simulator and arm controller for simple robot programming language. The system has graphic simulation system as a debugging tool for task programming and it simulates the robot motion graphically on a CRT terminal, which makes the assessment of the possible robot motion.

• 한국멀티미디어학회논문지
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• 제7권8호
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• pp.1170-1182
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• 2004

본 논문에서는 3단계 블록 매칭 알고리즘을 위한 새로운 4-경로 파이프라인 구조를 제안한다. 4-경로 파이프라인 구조를 위하여 현재 블록과 탐색 영역을 각각 4개의 부영역으로 분할하여 병렬처리하는 방법을 개발하였다. 4개의 부영역으로부터 메모리 접근의 충돌 없이 픽셀 데이터를 동시에 읽어 들이기 위한 메모리 분할 방법을 개발하였다. 제안된 구조는 C언어와 VHDL로 설계하여 시뮬레이션을 수행하였다. 실험 결과에 의하면 제안된 구조는 실시간 모션 추정 응용에 사용될 수 있는 높은 성능을 얻을 수 있었다.