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Introduction to 3D Interaction

Introduction to 3D Interaction. 포항공과대학교 컴퓨터 공학과 가상현실감 연구실. POSTECH VR Laboratory. Members Prof. Chan Mo Park and Asst. Prof. Gerard Jounghyun Kim Research Staff(3), Ph.D. Student(3), Master’s Student(10) Research 3D interaction interactive music system multimodal interaction for CAD

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Introduction to 3D Interaction

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  1. Introduction to 3D Interaction 포항공과대학교 컴퓨터 공학과 가상현실감 연구실

  2. POSTECH VR Laboratory • Members • Prof. Chan Mo Park and Asst. Prof. Gerard Jounghyun Kim • Research Staff(3), Ph.D. Student(3), Master’s Student(10) • Research • 3D interaction • interactive music system • multimodal interaction for CAD • VR based motion training • software engineering of virtual worlds • human body modeling • http://www.postech.ac.kr/cse/vr Introduction

  3. 발표 순서 • Introduction(90 min.) • 3D interaction tasks(definition) • issues on 3D interaction design • taxonomy of 3D interaction • Task oriented interaction design at POSTECH(50 min.) • interaction techniques for immersive CAD : menu selection • interactive music system : manipulation/view • VR based motion training(Ghost Metaphor) : following/view • Evaluation for 3D interaction tasks(30 min.) • usability engineering method • evaluation techniques • Conclusion and Discussion(10 min.) Introduction

  4. Why 3D Interaction? • 3D/VE application • immersion(presence) • naturalness(cognitive load) • fast/efficient • Application up-to-date • example • architectural walkthrough, visualization, training etc. • complex interaction • usability • problem • introduce 2D interactiontechnique : DOF problem • advanced technology : not ensure that VE’s are usable Introduction

  5. Tasks select, observe, manipulate, ... Definitions • Interface technology • specialized choice of the hardware/software through which a user communicates with a computer system • Interaction model • a model by which the user accomplishes some tasks via the interface System S/W H/W Performer, Inventor, WTK, ... HMD, Tracker, Glove... Interaction Model data format, stage, view, hierarchy, structure, ... Introduction

  6. Interaction Tasks • Navigation • movement(travel, walk) and planning(way-finding) • Selection • choosing one or more objects • Manipulation • specification of object position, orientation, scale, shape, others • Selection  Manipulation ? • selection may be a stand-alone task • ex) menu selection(command) • Others : almost atomic(chunked) tasks • visual information browsing • measurement • data input • following, flow control Introduction

  7. Goals of Interaction Design • Performance • efficiency, accuracy and productivity • quantitative measures : how well is task being done? • Usability • easy to use and learn • qualitative experience : how easy is it to communicate with? • Applicability • take not hindered by the interface • qualitative measures : how well applicable is it to other applications? Introduction

  8. Directions of Research • Generic interaction technique • do not consider particular applications • infer from real 3D interaction methods/develop new techniques • Application dependent interaction technique • suitable interaction methods for a given application • start from GIT and consider new techniques • Conflict • from GIT to ADIT and from ADIT to ADIT • need methodology for developing/verifying GIT/ADIT in a scientific way • Goal • guideline for 3D interaction design • GIT : initial guideline for 3D interaction design • ADIT : case by case UI study  design of process Introduction

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