• 제목/요약/키워드: pointing

검색결과 670건 처리시간 0.03초

ARtalet for Digilog Book Authoring Tool - Authoring 3D Objects Properties (디지로그 북 저작도구 ARtalet - 3 차원 객체 속성 저작)

  • Ha, Tae-Jin;Lee, Youg-Ho;Woo, Woon-Tack
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2008년도 학술대회 1부
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    • pp.314-318
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    • 2008
  • This paper is about an authoring interface for augmented/mixed reality based book, specifically authoring 3D objects properties of Digilog book. We pursue even normal users with non-professional knowledge for programming can make the Digilog book easily. An authoring interface 3D object properties includes a manipulator as an input device and 3D contents authoring parts. As an interface design metaphor, existing GUI interface, already familiar to computer users, are referenced. The manipulator generates continuous/discrete input signal are necessary for authoring interface. Contents authoring part performs selection, positioning, scaling, coloring, copy of virtual objects using the input signal of the manipulator. Also users can exploit already existing GUI interface metaphor including pointing, click, drag and drop, and copy techniques with the manipulator. Therefore we think our AR authoring system can support rapid and intuitive modification of properties of virtual objects.

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Design and Implementation of Radar Resource Management Algorithms for Airborne AESA Radar (항공기 탑재 능동 위상배열 레이더의 자원관리 알고리즘 설계 및 구현)

  • Roh, Ji-Eun;Chon, Sang-Mi;Ahn, Chang-Soo;Jang, Seong-Hoon
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • 제24권12호
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    • pp.1190-1197
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    • 2013
  • AESA(Active Electronically Scanned Array radar) radar is able to instantaneously and adaptively position and control the beam, and such adaptive beam pointing of AESA radar enables to remarkably improve the multi-mission capability. For this reason, radar resource management(RRM) becomes new challenging issue. RRM is a technique efficiently allocating finite resources, such as energy and time to each task in an optimal and intelligent way. This paper deals with a design of radar resource management algorithms and simulator implemented main algorithms for development of airborne AESA radar. In addition, evaluation results show that developed radar system satisfies a main requirement about simultaneous multiple target tracking and detection by adopting proposed algorithms.

Expression Types and Characteristics of Cartoon and Animation Characters in Contemporary Fashion (현대패션에 나타난 만화와 애니메이션 캐릭터의 표현유형과 특성)

  • Kim, Sun-Young
    • Journal of the Korean Society of Clothing and Textiles
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    • 제34권11호
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    • pp.1912-1922
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    • 2010
  • This paper examines the types and characteristics of cartoon and animation characters in contemporary fashion in order to provide the basic data necessary for the development and use of fashion character designs that develop creative designs and culturally high values. This study examined the relevant literature, reviewed local publications, foreign fashion magazines, and Internet data from 2000 to 2009. In this way, it analyzed various visual images that reflect cartoon and animation characters in case studies. This paper found some expression types, which are the direct expression of characters through print or collage, the borrowing of character images, the use of cartoon expression techniques, and the use of characters for the composition of clothing forms. Those expression types had some similar characteristics. The first is the expression of a kidult-like entertainment that reflected the inner psychology of adults trying to escape from a complicated modem society and returning to their childhood. The second is the expression of satire. Cartoon and animation characters were used as a medium for pointing out social irregularities and evil deeds that taught the lesson of good triumphing over the evil in fashion; they expressed the satire of the modem society and delivered a message of purity and hope. The third is the use of a decorative factor. Each character was printed in primary colors or expressed in colorful beads, and serial cartoon scenes were printed on clothes and used to make a decorative effect of fashion designs.

The Effect of Reflection and Mentoring Based on Gender - Sensitive Teaching Strategies (성인지적 교수전략을 바탕으로 한 수업 성찰과 멘토링 효과)

  • Hong, Kyung-Sun;Kim, Dong-Ik;Gu, Su-Yeon;Ahn, Jin-Kyung
    • Journal of Engineering Education Research
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    • 제14권2호
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    • pp.40-50
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    • 2011
  • This study is to investigate an effective instruction for female students in an engineering classroom through gender -sensitive teaching strategies by analysing recorded classroom instruction, reflective journals of professor, and mentoring instructions of A professor teaching "non-steel materials and design" in an engineering classroom. This study which used a qualitative approach for data collection and analysis showed changes of A professor in his way of teaching. The changes are: making rough lesson plan ${\rightarrow}$ making detailed lesson plan being satisfied with his teaching skills ${\rightarrow}$ trying to improve his teaching skills, using negative feedback ${\rightarrow}$ using positive feedback, pointing weaknesses as pre-engineers ${\rightarrow}$ providing detailed information needed to be engineers. This paper deals with the theory comparison between a conventional engineering education and new engineering education, in which conventional models may fail to give satisfactory results. Finally, we provide real application examples to evaluate the feasibility and generality of the proposed method in this paper.

Effect of Touch-key Sizes on Usability of Driver Information Systems and Driving Safety (터치키 크기가 운전자 정보 시스템의 사용성과 운전의 안전성에 미치는 영향 분석)

  • Kim, Hee-Hin;Kwon, Sung-Hyuk;Heo, Ji-Yoon;Chung, Min-K.
    • Journal of Korean Institute of Industrial Engineers
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    • 제37권1호
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    • pp.30-40
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    • 2011
  • In recent years, driver information systems (DIS's) became popular and the use of DIS's increased significantly. A majority of DIS's provides touch-screen interfaces because of intuitiveness of the interaction and the flexibility of interface design. In many cases, touch-screen interfaces are mainly manipulated by fingers. In this case, investigating the effect of touch-key sizes on usability is known to be one of the most important research issues, and lots of studies address the effect of touch-key size for mobile devices or kiosks. However, there is few study on DIS's. The importance of touch-key size study for DIS's should be emphasized because it is closely related to safety issues besides usability issues. In this study, we investigated the effect of touch-key sizes of DIS's while simulated driving (0, 50, and 100km/h) considering driving safety (lateral deviation, velocity deviation, total glance time, mean glance time, total time between glances, mean number of glances) and usability of DIS's (task completion time, error rate, subjective preference, NASA TLX) simultaneously. As a result, both of driving safety and usability of DIS's increased as driving speed decreased and touch-key size increased. However, there were no significant differences when touch-key size is larger than a certain level (in this study : 17.5mm).

DESIGN & STRUCTURAL ANALYSIS OF MULTI-OPTICAL MOUNT SYSTEME FOR TRACKING/OBSERVING ARTIFICIAL SPACE OBJECTS (인공우주물체 추적/관측을 위한 다중 광학계 탑재용 가대 설계 및 구조해석)

  • Seol, K.H.;Kim, S.J.;Jang, M.;Min, S.W.;Mun, B.S.
    • Journal of Astronomy and Space Sciences
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    • 제23권4호
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    • pp.435-444
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    • 2006
  • Since artificial space objects are observable only in a short period of time and the characteristics of their motion is not exactly predictable, it is difficult to obtain both photometric and spectroscopic data by a set of observations. We have, therefore, designed a mount to load multi-optical instruments on the Kyung Hee University (KHU) satellite tracking and observation system for both photometric and spectroscopic observations of artificial space objects. In this paper, we have calculated the deformation of the remodeled mount using structural analyses for the loading of the multi-optical instruments. We have also deduced pointing errors of the mount occurring at tracking and observing artificial space objects. we have derived tracking reliably artificial space objects in our field of view and confirmed structural safety test of mount utilizing equivalent (von-mises) stress distribution.

An Index Structure for Trajectory-based Query of Moving Objects in Mobile Applications (모바일 응용에서 이동 객체의 궤적-기반 질의를 위한 색인 구조)

  • Shim Choon-Bo;Joo Jae-Heum
    • Journal of the Korea Institute of Information and Communication Engineering
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    • 제8권8호
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    • pp.1828-1834
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    • 2004
  • With the rapid development of wireless communications and mobile technologies, requirements of various services based on moving objects like location-based services and mobile applications services have been increased. In this paper, we propose an index structure which can improve the performance on trajectory-based query especially, one of the various query types for moving objects in mobile applications. It maintains link table(L-Table) to obtain good efficiency on retrieval and insertion performance of the existing TB(Trajectory Bundle)-tree proposed for trajectory-based query of moving objects. The L-Table contains page number in disk and memory pointers pointing the leaf node with the first and last line segment of moving objects in order to directly access preceding node. In addition, we design to reside a part of whole index in main memory by preserving a fixed size of buffer in case of being restricted by available main memory. Finally, experimental results with various data sets show that the proposed technique is superior to the existing index structures with respect to insertion and trajectory-based query.

The Characteristics of Visuospatial Working Memory in Alzheimer's Disease (알츠하이머병에서의 시공간 작업기억 특성)

  • Kim, Seol-Min;Lee, Young-Ho;Youn, Jung-Hae;Lee, Ju-Won;Lee, Jun-Young
    • Korean Journal of Biological Psychiatry
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    • 제16권4호
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    • pp.238-245
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    • 2009
  • Objectives : Mild Alzheimer's disease(AD) is uncertain to be related to visuospatial working memory subsystem dysfunction. We used the self ordered pointing test(SOPT) to find the characteristics of visuospatial working memory in mild AD. Methods : We compared the visuospatial working memory abilities of 20 patients with mild AD and 20 normal elderly controls(NC) using SOPT, of which stimuli consisted of two stimuli types(A : abstract, C : concrete) and two stimuli numbers(8 and 12). Therefore, working memory was tested using C8, C12, A8, and A12 stimuli conditions in SOPT. Mixed-model ANOVA was conducted with the AD and NC groups as between-subjects factor, with stimuli types and stimuli numbers as the within-subjects factors and with SOPT error rates as the dependent variable. Results : The AD group showed higher error rates in SOPT than the NC group. The NC group showed low error rates in concrete stimuli than in abstract stimuli and in small stimuli numbers than in large stimuli numbers. And the AD group showed no differences between stimuli types or stimuli numbers. Conclusion : AD patients showed a poor performance in visuospatial working memory using concrete stimuli. The result suggests that there is a non-transformation from visual input to phonological working memory in AD. Patients with AD showed a poor performance although in small stimuli number condition of SOPT. It suggests that in AD, visuospatial working memory is not working well although in low central executive loads.

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A Study on the Educational Program of Seasonal Customs for the 4th Grade Students in the Elementary School in Yangju City - Focused on the Seasonal Customs in Summer - (양주시 초등학교 4학년 세시풍속교육프로그램 연구 - 여름 세시풍속을 중심으로 -)

  • Choi, Bae-Young;Kim, Mi-Sik;Kim, Mi-Heui
    • The Korean Journal of Community Living Science
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    • 제16권3호
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    • pp.109-125
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    • 2005
  • The purpose of this study was to analyze the differences in the understanding level of the Korean traditional seasonal customs during summer (i.e. Buddha's birthday, Dano festival, Yudu festival and Chilseok) before and after the execution of a educational program concerning seasonal customs and determine if elementary school teachers recognize a need for this kind of educational program. The subjects of this study were 168 students in the 4th grade at two elementary schools (84 students each for the experiment group and the control group) and 249 teachers at the elementary schools in Yangju city. The major results of this study are as follows : First, it was shown that there is no significant difference in the understanding level of seasonal customs between the experiment group and the control group in the pre-test, but after carrying out the educational program, it was indicated that there is a statistically significant difference between the experiment group and the control group in the post-test. Second, in addition to strongly pointing out the necessity of seasonal customs education, the teachers recognized that it is desirable to teach seasonal customs to students through the discretionary activity class corresponding to the seasonal divisions in the year and that it is especially important to perform the educational activity through traditional plays and to utilize audio-visual media. Also, teachers hoped that a seasonal customs program suitable for elementary school students would be required, along with the development of instructional materials, and finally that the schools need to further develop teacher training through field inspections and practice.

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Development of Korean Preliminary Lunar Mission Design Software (한국형 달탐사 임무 예비 설계 소프트웨어의 개발)

  • Song, Young-Joo;Park, Sang-Young;Choi, Kyu-Hong;Shim, Eun-Seop
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • 제36권4호
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    • pp.357-367
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    • 2008
  • Preparing for future Korean Lunar missions, preliminary Lunar mission design software is developed using a impulsive thrusting method. Developed software is capable of design and analysis every required mission phases to design Lunar mission, including the Earth departure, Lunar transfer, Lunar arrival and mission operation phases. Also, assuming that KSLV-II is selected as a launch vehicle, future Korean Lunar explorer's mass budget is estimated based on driven optimal trajectory characteristics. Tracking analysis is also performed using Deep Space Network including angle geometry analysis between Earth - Moon - Lunar explorer - Sun which are very important for communication, solar panel pointing strategy and eclipse analysis when Lunar missions are under designing phase.