• Title, Summary, Keyword: Interface

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Cubic Tangible User Interface Development for Mobile Environment (모바일 환경을 위한 큐빅형 텐저블 사용자 인터페이스 개발)

  • Ok, Soo-Yol
    • Journal of the Korean Society for Precision Engineering
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    • v.26 no.10
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    • pp.32-39
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    • 2009
  • Most mobile devices provide limited input interfaces in order to maximize the mobility and the portability. In this paper, the author proposes a small cubic-shaped tangible input interface which tracks the location, the direction, and the velocity using MEMS sensor technology to overcome the physical limitations of the poor input devices in mobile computing environments. As the preliminary phase for implementing the proposed tangible input interface, the prototype design and implementation methods are described in this paper. Various experiments such as menu manipulation, 3-dimensional contents control, and sensor data visualization have been performed in order to verify the validity of the proposed interface. The proposed tangible device enables direct and intuitive manipulation. It is obvious that the mobile computing will be more widespread and various kinds of new contents will emerge in near future. The proposed interface can be successfully employed for the new contents services that cannot be easily implemented because of the limitation of current input devices. It is also obvious that this kind of interface will be a critical component for future mobile communication environments. The proposed tangible interface will be further improved to be applied to various contents manipulation including 2D/3D games.

A Study of Trajectory Mapping Method as a User Interface Design Tool for Mobile Devices (모바일 기기의 사용자 인터페이스 설계 도구로서 Trajectory Mapping 방법에 관한 연구)

  • Lee, Suk-Won;Myung, Ro-Hae
    • IE interfaces
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    • v.22 no.1
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    • pp.17-25
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    • 2009
  • In mobile device's user interface, menu organization is very important as well as menu structure because small display of mobile device. Menu items should be organized based on user knowledge structure to design user-centered interface. Traditionally, MDS (Multidimensional Scaling) have been most often used to expose users' perceived organization of menu items. But, information that MDS reveals is just relative spatial location of concepts and not relevant to concepts connection. Unlike MDS, Trajectory Mapping explicitly finds users' cognitive links between perceived concepts. This study proposes a Trajectory Mapping technique for eliciting knowledge structure, especially a set of cognitive pathways linking menu items, from end user. With twelve participants, MDS and Trajectory Mapping were conducted using cellular phone's menu items. And user knowledge structure was analyzed through Visual Concept Map that combination of results of MDS and Trajectory Mapping. After then, menu items were organized according to users' perceived organization. Empirical usability test was also conducted. The results of usability test showed that usability, in terms of task performance time, number of errors, and satisfaction, for newly organized interface was significantly improved compare to original interface. The methodology of this study is expected to be applicable to design a user-centered interface. In other words, Trajectory Mapping technique can be used as a design tool of user interface for imposing user knowledge structure on the interface.

Fluctuation of Solid-Liquid Interface of Faceted Phase and Nonfaceted Phase by Periodic Temperature Variation

  • Oh, Sung-Tag;Kim, Young Do;Song, Young-Jun;Suk, Myung-Jin
    • Korean Journal of Materials Research
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    • v.26 no.11
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    • pp.644-648
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    • 2016
  • In order to examine how the solid-liquid interface responds to temperature variation depending on the materials characteristics, i.e. faceted phase or nonfaceted phase, the moving solid-liquid interface of transparent organic material, as a model substance for metallic materials (pivalic acid, camphene, salol, and camphor-50wt% naphthalene) was observed in-situ. Plots of the interface movement distance against time were obtained. The solid-liquid interface of the nonfaceted phase is atomically rough; it migrates in continuous mode, giving smooth curves of the distance-time plot. This is the case for pivalic acid and camphene. It was expected that the faceted phases would show different types of curves of the distance-time plot because of the atomically smooth solid-liquid interface. However, salol (faceted phase) shows a curve of the distance-time plot as smooth as that of the nonfaceted phases. This indicates that the solid-liquid interface of salol migrates as continuously as that of the nonfaceted phases. This is in contrast with the case of naphthalene, one of the faceted phases, for which the solid-liquid interface migrates in "stop and go" mode, giving a stepwise curve of the distance-time plot.

Improving Eye-gaze Mouse System Using Mouth Open Detection and Pop Up Menu (입 벌림 인식과 팝업 메뉴를 이용한 시선추적 마우스 시스템 성능 개선)

  • Byeon, Ju Yeong;Jung, Keechul
    • Journal of Korea Multimedia Society
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    • v.23 no.12
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    • pp.1454-1463
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    • 2020
  • An important factor in eye-tracking PC interface for general paralyzed patients is the implementation of the mouse interface, for manipulating the GUI. With a successfully implemented mouse interface, users can generate mouse events exactly at the point of their choosing. However, it is difficult to define this interaction in the eye-tracking interface. This problem has been defined as the Midas touch problem and has been a major focus of eye-tracking research. There have been many attempts to solve this problem using blink, voice input, etc. However, it was not suitable for general paralyzed patients because some of them cannot wink or speak. In this paper, we propose a mouth-pop-up, eye-tracking mouse interface that solves the Midas touch problem as well as becoming a suitable interface for general paralyzed patients using a common RGB camera. The interface presented in this paper implements a mouse interface that detects the opening and closing of the mouth to activate a pop-up menu that the user can select the mouse event. After implementation, a performance experiment was conducted. As a result, we found that the number of malfunctions and the time to perform tasks were reduced compared to the existing method.

A Study on the Development of On Screen Display Interface Design for Digital Convergence TV User (디지털 복합TV환경에서의 사용자 인터페이스 디자인을 위한 OSD 디자인 개발에 관한 연구)

  • shim, Jae-Hee;Lee, Kun-Sik;Yoo, Kyung-Hee;Kim, Uni-Young;Kim, Jeong-Ju
    • 한국HCI학회:학술대회논문집
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    • pp.9-13
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    • 2006
  • 본 연구는 HD 복합TV 사용자의 시청행태 및 사용자 니즈 분석을 통해 사용자 시나리오를 도출하여 실제 제품에 적용할 수 있는 DTV 인터페이스 디자인의 일반적인 원리를 발견하고 대형 DTV 화면에 적합한 OSD디자인을 개발하여 디지털 복합 TV에 적합한 새로운 디자인 가이드라인을 제안하는 것을 그 목적으로 하고 있다. 이를 위해 DTV 시청환경을 기반으로 PVR, EPF, 녹화, 1394 등 다양한 기능에 대한 사용 시나리오를 정의하고 유저 내비게이션 특성을 반영한 OSD디자인 방향을 검토하였고 개발환경인 50인치 PDP 화면에 적합한 레이아웃을 제작하여 사용자조사를 통해 검증하였다. 사례연구로 최근 이슈가 되고 있는 타임머신 기능 X Canvas PDP의 OSD 디자인을 개발하여 양산용 제품에 적용할 수 있었다. 대표적인 특징으로 복합 TV 의 Gateway 인 홈메뉴, PVR 기능의 핵심인 프로그래스바, 모든 컨텐츠에 일관되게 적용할 수 있는 목록화면, 녹화관련화면에 공통적으로 적용할 수 있도록 폰트,칼라,레이아웃,위젯 정의를 수행하여 각 기능별 화면들이 Package개념으로 Identity를 갖추면서 사용하기 편리하도록 구성하였다. 그리고 이를 통하여 DTV Application Design에 일반적으로 적용할 수 있는 메뉴구조 및 화면디자인 가이드라인을 도출하였고 세계최초로 자사에서 개발한 하드디스크 내장 HD TV Application GUI 의 사용성 및 심미성 측면을 모두 만족시키는 등 DTV GUI 분야에서 주목할 만한 성과를 거두었다.

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Guidelines for Mobile Phone User Interface Development (휴대폰 User Interface 개발을 위한 가이드라인)

  • Kweon, O-Seong
    • Science of Emotion and Sensibility
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    • v.12 no.3
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    • pp.325-330
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    • 2009
  • The importance of User Interface (UI) in mobile phone has increased as the complexity of use increases due to the new technology adoption. The complexity and load for user interface development has increased accordingly. This paper discusses how to make a structured UI development process based on the mobile phone UI development case. After the review of UI development process and issues arising during the development, four levels of user interface guidelines are proposed such as macro rules, action templates, application rules and interaction cases. The importance of dealing various interaction case is emphasized which is not referred in the present industry UI guidelines. Most of research related to UI development focus on the target product rather than how to make good UI process. Based on the good UI process, good UI of the product can be realized. This proposed process based on UI guidelines will help to step up the UI development of mobile phone industry. Also, this process can be applied to different products or services.

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Determination of Steel-concrete Interface Parameters: Me chanical Properties of Interface Parameters (강-콘크리트 계면의 계면상수 결정 : 계면상수의 역학적 성질)

  • Lee, Ta;Joo, Young-Tae;Lee, Yong-Hak
    • Journal of the Korea Concrete Institute
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    • v.21 no.6
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    • pp.781-788
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    • 2009
  • Mechanical properties of steel-concrete interface were evaluated on the basis of experimental observations. The properties included bond strength, unbounded and bonded friction angles, residual level of friction angle, mode I fracture energy, mode II bonded fracture energy and unbonded slip-friction energy under different levels of normal stress, and shape parameters to define geometrical shape of failure envelope. For this purpose, a typical type of constitutive model of describing steel-concrete interface behavior was presented based on a hyperbolic three-parameter Mohr-Coulomb type failure criterion. The constitutive model depicts the strong dependency of interface behavior on bonding condition of interface, bonded or unbounded. Values of the interface parameters were determined through interpretation of experimental results, geometry of failure envelope and sensitivity analysis. Nonlinear finite element analysis that incorporates steel-concrete interface as well as material nonlinearities of concrete and steel were performed to predict the experimental results.

Feasibility study of membrane interface for gas chromatograph-mass spectrometry (기체크로마토그래프-질량분석기의 실리콘 분리막 인터페이스의 유용성 연구)

  • Kang, Gil Seon;Lee, Dong Soo;Lee, Hwa Sim;Park, Chang Joon
    • Analytical Science and Technology
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    • v.21 no.6
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    • pp.495-501
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    • 2008
  • Agilent 5973 GC-MS instrument was modified so that the capillary direct interface was removed and that a silicone membrane was installed between GC and MS. Feasibility study of the membrane interface GC-MS has been carried out. Vacuum of the mass spectrometer was not affected by the carrier gas flow rate up to $4.7m{\ell}/min$. As the carrier flow rate was increased, peak tailing was reduced and chromatogram peaks appeared earlier. Chromatogram peaks showed better separation and higher sensitivity as the membrane thickness was reduced from $127{\mu}m$ to $75{\mu}m$, and also as the interface temperature was increased. However, the membrane interface GC-MS had drawbacks such as background ions at 73 and 147 m/z and poor peak separation due to peak tailing.

Evaluation of AHP-Based Mobile MMORPG Game Interface Usability (AHP 기반 모바일 MMORPG 인터페이스 사용성 평가)

  • Kwon, Il-Kyoung;Lee, Sang-Yong
    • Journal of Digital Convergence
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    • v.13 no.3
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    • pp.255-261
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    • 2015
  • The use of games using smartphones have become universal, and the market share of MMORPG among various game genres shows an uptrend. However, MMORPG requires complex interface in view of the genre characteristics, and therefore, there are difficulties in building interface for efficient game play. This study analyzed game interface characteristics to suggest MMORPG game interface suitable for the mobile environment, and carried out a questionnaire survey evaluation on the usability of fight, exploration, character and transaction interfaces targeting 12 users. To quantitatively evaluate the subjective questionnaire survey results, this study analyzed a correlation between the characteristics of game interface and popularity using AHP. As a result, there was a close correlation between game selection & popularity and interface, and this study ascertained that interface development through game interface usability evaluation using AHP was possible.

MPEG-U part 2 based Advanced User Interaction Interface System (MPEG-U part 2 기반 향상된 사용자 상호작용 인터페이스 시스템)

  • Han, Gukhee;Baek, A-Ram;Choi, Haechul
    • The Journal of the Korea Contents Association
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    • v.12 no.12
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    • pp.54-62
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    • 2012
  • AUI(Advanced User Interaction) interface aims to enhance interaction between various input/output devices and scene descriptions represented by video, audio, and graphic. Recently, MPEG-U part 2 standardization for the AUI interface is under development by MPEG(moving picture experts group). This paper introduces MPEG-U part 2 standard and presents MPEG-U part 2 AUI interface system. The AUI interface system consists of user interface in/output modules and MPEG-U XML generation/interpretation modules. The former and the latter are for UID data handling and XML data processing, respectively. This system MPEG-U standards-based input/output devices and to improve the interaction with the user can be used as a framework. By implementation of the proposed AUI interface system, MPEG-U usage scenario is introduced and it is verified that the AUI interface system conforms to MPEG-U standard.