• 한국콘텐츠학회논문지
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• 제12권9호
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• pp.40-47
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• 2012

미디어 아트는 새로운 경로의 인식과 지각을 동반하고, 기존의 미술과는 다른 인간의 신체를 도구화 하여 상호작용을 만들어내는 새로운 감상방식을 제안한다. 시각적인 영상을 제작하는 방식 중 포인트 클라우드는 점으로 형태를 표현한다는 점에 있어 서양미술의 점묘법과 유사하며 이는 전통회화 기법을 디지털 기술을 활용해 재구성한다는 의미를 가진다. 본 논문에서는 미학적 요소와 디지털 기술을 융합한 새로운 감상방식으로 포인트 클라우드 형태의 영상을 제작하여 홀로그램 필름에 투사하고, 관람자의 손짓이 영상과 상호작용하는 콘텐츠를 제시한다. 콘텐츠 제작은 콘텐츠 제작 배경 의도를 기획하고 포인트 클라우드 형태의 이미지 제작, 상호작용을 위한 3D 제스처 디자인 과정을 거쳐 최종적으로 홀로그램 필름에 투사하는 과정을 거친다. 콘텐츠는 사람의 의식 속에서 일어나는 기억의 회상 과정을 시각적, 체감적으로 표현한다. 이를 위해 기억의 회상 과정을 불확실한 기억, 기억의 구체화, 완전한 회상으로 설정하였다. 불확실한 기억은 포인트 클라우드 형태의 이미지를 통해 모호한 형태의 이미지로 표현되고, 상호작용으로 이미지를 조작하는 행위를 통해 기억을 구체화 해 나가면서 완전한 회상을 하게 된다.

• 말소리와 음성과학
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• 제7권1호
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• pp.97-105
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• 2015

This research mainly focuses on intonational characteristics of synchronous English speech. Intonation contours were extracted from 1,848 utterances produced in two different speaking modes (solo vs. synchronous) by 28 (12 women and 16 men) native speakers of English. Synchronous speech is found to be slower than solo speech. Women are found to speak slower than men. The effect size of speech rate caused by different speaking modes is greater than gender differences. However, there is no interaction between the two factors (speaking modes vs. gender differences) in terms of speech rate. Analysis of pitch point features has it that synchronous speech has smaller Pt (pitch point movement time), Pr (pitch point pitch range), Ps (pitch point slope) and Pd (pitch point distance) than solo speech. There is no interaction between the two factors (speaking modes vs. gender differences) in terms of pitch point features. Analysis of sentence level features reveals that synchronous speech has smaller Sr (sentence level pitch range), Ss (sentence slope), MaxNr (normalized maximum pitch) and MinNr (normalized minimum pitch) but greater Min (minimum pitch) and Sd (sentence duration) than solo speech. It is also shown that the higher the Mid (median pitch), the MaxNr and the MinNr in solo speaking mode, the more they are reduced in synchronous speaking mode. Max, Min and Mid show greater speaker discriminability than other features.

• 제어로봇시스템학회논문지
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• 제20권6호
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• pp.599-605
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• 2014

This paper presents the interactive behavior modeling method based on POMDP (Partially Observable Markov Decision Process) for HRI (Human-Robot Interaction). HRI seems similar to conversational interaction in point of interaction between human and a robot. The POMDP has been popularly used in conversational interaction system. The POMDP can efficiently handle uncertainty of observable variables in conversational interaction system. In this paper, the input variables of the proposed conversational HRI system in POMDP are the input information of sensors and the log of used service. The output variables of system are the name of robot behaviors. The robot behavior presents the motion occurred from LED, LCD, Motor, sound. The suggested conversational POMDP-based HRI system was applied to an emotional robot KIBOT. In the result of human-KIBOT interaction, this system shows the flexible robot behavior in real world.

• 한국시뮬레이션학회논문지
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• 제26권3호
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• pp.47-54
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• 2017

본 연구에서는 선박조종시뮬레이터를 이용하여 선박의 크기에 따른 두 선박의 간섭력의 운동특성을 분석하였다. 파나막스급 컨테이너선이 자선보다 크기가 작은 계류선을 근접통항하는 경우에 계류선에서 간섭력의 피크점과 운동패턴의 변화가 뚜렷하게 나타났다. 이땐 선박의 정횡 상태 전후에서 전후력과 회두모멘트가 반대방향으로 바뀌므로 계류선의 움직임에 각별한 주의가 요구된다. 반대로 파나막스급 컨테이너선이 자선보다 큰 계류선을 통과하는 경우에는 근접상황이 발생하는 초기에 통과선에서 간섭력의 피크점이 나타났고, 통과선에는 정횡 이후 약 1L(통과선의 전장)의 구간동안 지속적으로 흡인력이 발생했다. 또한, 통과선과 계류선의 선체간의 수평거리가 2B(통과선의 폭)이하로 줄어들면, 통과선의 초기에 발생하는 간섭력이 급격히 증대된다.

• 한국게임학회 논문지
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• 제19권6호
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• pp.117-132
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• 2019

이 글의 목적은 게임에서의 상호작용의 특수성에 대한 고찰이다. 여기서 다룰 상호작용성은 사회과학적 상호작용과는 다른, 철학적 맥락에서 이해되어야 할 상호작용성이다. 상호작용의 특수성을 규명하기 위해서는 다음의 절차가 요구된다. 첫째, 상호작용성의 외재적 성격의 검토, 둘째, 상호작용성의 내재적 이해, 셋째, 게이머의 양면성 파악, 넷째, 게이머의 상호작용의 의미해석이다. 이 글의 결론은 다음과 같다. 상호작용의 특수성은 게이머가 처한 이중의 사태를 토대로 기존 관점의 전향을 이끄는 유희적이고 존재론적인 힘으로 나타난다.

• 한국안전학회지
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• 제31권6호
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• pp.39-44
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• 2016

Suitable design and operation of distillation process is very dependent on vapor-liquid equilibrium calculation. The usual calculation method is use binary interaction parameter. Flash points of n-propanol+n-butanol and 2-butanol+n-butanol were measured by Seta-flash closed cup tester. Experimental Flash points were compared with those calculated by the method based on Raoult's law and the optimization method using Wilson equation. The binary interaction parameters obtained by the optimization method are then used to calculate the bubble points of n-propanol+n-butanol and 2-butanol+n-butanol.

• 한국의류학회지
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• 제24권6호
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• pp.884-894
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• 2000

This study was intended to examine the effect of consumer materialism, price and point-of-purchase advertisements on consumer preference and purchasing intention with respect to discount jeans. Information for the study was obtained through the use of an experimental design which was 2$\times$[2$\times$3] mixed factorial design. The subjects were two hundred and seventy college male and female students. The data were analysed with factor analysis, ANOVA by using the SAS program. The main results were as follows: First, the results indicated that the 3-way interaction effects among materialism, price and point-of-purchase advertisements on consumer preference. Second, the results showed the 2-way interaction effects between materialism and price between materialism and price on consumers’purchasing behavior. These results indicated that materialism have not direct effect on consumers’purchasing behavior but significant influence under those condition in which price effect occurs. And different from other point-of-purchase advertisements, power words’advertisements show negative effects on consumer preference in case of low price jeans, having no connection with materialism level.

• 한국전산유체공학회지
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• 제4권2호
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• pp.17-30
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• 1999

The unsteady transitional boundary layer due to rotor-stator interaction was studied at two operation points, the design and one off design points. The off design point leads to lower blade loading and lower Reynolds number. A Navier-Stokes code developed in the previous study was parallelized to expedite computations. A low Reynolds number turbulence model was used to close the momentum equations. All computations show good agreement with experimental data. The wake induced transitional strip on the suction side of the stator is clearly captured at design point operation. There is no noticeable change in shape and phase angle of the wake induced strip even in the laminar sublayer. The wake induced transitional strip at off design point shows more complex structure. The wake induced transitional strip is observed only in the turbulent layer, and becomes obscure in the laminar sublayer and buffer layer. This behavior is probably consequent upon that the transition is governed by both wake induced strip and natural transition mechanism by Tollmien-Schlichting wave.

• 제어로봇시스템학회논문지
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• 제22권6호
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• pp.403-410
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• 2016

This paper proposes a robust image-based visual servoing scheme using a nonlinear observer for a monocular eye-in-hand manipulator. The proposed control method is divided into a range estimation phase and a target-tracking phase. In the range estimation phase, the range from the camera to the target is estimated under the non-moving target condition to solve the uncertainty of an interaction matrix. Then, in the target-tracking phase, the feature point uncertainty caused by the unknown motion of the target is estimated and feature point errors converge sufficiently near to zero through compensation for the feature point uncertainty.

• ETRI Journal
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• 제37권4호
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• pp.766-771
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• 2015

Robust motion estimation for human-computer interactions played an important role in a novel method of interaction with electronic devices. Existing pose estimation using a monocular camera employs either ego-motion or exo-motion, both of which are not sufficiently accurate for estimating fine motion due to the motion ambiguity of rotation and translation. This paper presents a hybrid vision-based pose estimation method for fine-motion estimation that is specifically capable of extracting human body motion accurately. The method uses an ego-camera attached to a point of interest and exo-cameras located in the immediate surroundings of the point of interest. The exo-cameras can easily track the exact position of the point of interest by triangulation. Once the position is given, the ego-camera can accurately obtain the point of interest's orientation. In this way, any ambiguity between rotation and translation is eliminated and the exact motion of a target point (that is, ego-camera) can then be obtained. The proposed method is expected to provide a practical solution for robustly estimating fine motion in a non-contact manner, such as in interactive games that are designed for special purposes (for example, remote rehabilitation care systems).