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논문 기본 정보

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학위논문
저자정보

손민지 (고려대학교, 高麗大學校 大學院)

지도교수
柳昇憲
발행연도
2016
저작권
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이 논문의 연구 히스토리 (3)

초록· 키워드

오류제보하기
최근 키보드나 마우스를 입력장치로 사용하는 WIMP 기반 GUI 방식의 인터
페이스에서 직관적이고 자연스러운 NUI(Natural User Interface)에 기반을 둔
인터페이스가 대두되고 있다. 비접촉식 동작 인식 디바이스의 보급으로 사용자
와 시스템 간 비접촉 제스처 인터랙션이 다양해지고 있다. 이를 활용한 비접촉
3D 조형 시스템 기술들도 함께 발달하고 있으며, 단순 컨텐츠 소비형 태스크
에서 생산 태스크 (Productivity Tasks) 중심으로 변화되고 있음에 따라 사용
자와 시스템 간의 비접촉 제스처 인터랙션에 대한 연구의 필요성이 부각되고
있다.
현재의 비접촉 제스처 인터페이스는 정보 표면과의 거리로 인해 조형 태스크
?제스처 간의 부정확성과 비시각적 인터페이스 제공으로 직관적인 조형 작업
이 불가능한 한계성이 존재한다. 때문에, 직관적인 조형 태스크 제스처 인터페
이스를 위해서는 사용자의 멘탈모델과 태스크 부합성을 반영한 디자인이 필요
하다.
본 연구에서는 상기와 같은 문제점을 해결하고자 비접촉식 제스처 기반 조형
태스크의 직관성 향상을 위한 다중 모달리티 인터페이스 디자인을 제안하였다. 이를
위해, 디자인 조형 과정에 대한 이해와 조형 형태에 대한 사용자 경험을 조사한 후,
기술 발전에 따른 세대별 조형 시스템을 분석하였다. 또, 비접촉 3D 조형 시스템상에
서의 조형 제작 프로세스, 조형 제작 환경, 제스처와 조형 태스크 간의 관계성, 자연
스러운 손 조합 패턴과 사용자 손동작 요소들을 정의하였다.
이후, 조형 시스템 인터페이스의 지각적 직관성 향상을 위해 기존 비접촉 3D 조형
시스템상에서 비접촉식 제스처 인터랙션이 지니고 있는 언어적/공간적 코드의 특성별
제스처의 선행 조사를 진행하였고 조형 태스크에 개입하는 인지 프로세스의 특성에
따라 제스처를 지시적, 조작적, 메타포 기반 제스처로 재분류하였다. 이를 기반으로
비접촉 조형 시스템상에서 3D 자연스러운 조형 제작을 위해 조형 작성자의 행동체계
가 반영된 인터페이스의 시각적 메타포와 자연스러운 제스처 인터랙션을 유도할 수
있는 행동적 메타포를 도출하였다.
프로토타입을 개발한 후, 제안된 주요 조형 태스크별 제스처 세트의 직관성을 알아
보기 위해 기존 조형 시스템과 비교하여 사용성 평가를 진행하였다. 직관성, 효율성,
사용자 만족 측면에서 검증하였다. 실험 결과, 제안된 시스템은 제스처 수행 시간, 제
스처 오류 횟수, 제스처 만족도 모두 기존 시스템 대비 우위성을 보였다.
본 연구를 통해 조형 제작을 위한 제스처 인터페이스는 사용자의 경험에 기반한 시
각적/행동적 메타포를 바탕으로 공간적/언어적 코드와 시각적 모달리티가 함께 사용
된 제스처 인터페이스를 사용자들에게 제공되어야 한다는 것을 도출하였으며 사용성
평가를 통해 효용성을 검증하였다는 점에 의의를 가질 수 있다.

목차

제1장 서론 ············································································ 1
1.1. 연구 배경 및 목적································································· 1
1.2. 연구 범위 및 방법································································· 3
제2장 디자인 조형과 사용자 경험 정의························ 6
2.1. 디자인 조형············································································· 6
2.1.1. 디자인 조형의 개념 ······················································································6
2.1.2. 조형요소··········································································································8
2.1.2.1. 디자인의 조형 요소··············································································8
2.1.2.2. 제품의 조형요소····················································································9
2.1.3. 조형형태·······································································································14
2.1.3.1 개념·········································································································14
2.1.3.2 구성 체계 ·······························································································15
2.2. 조형적 사용자 경험····························································· 16
2.2.1. 형태의 지각·································································································16
2.2.2. 형태의 인지·································································································18
2.2.3. 감성 경험 ·····································································································19
제3장 디자인 조형 시스템 이해 ···································· 22
3.1 1세대 : 일반 조형 과정······················································ 22
3.1.1. 조형 구축 프로세스 ···················································································22
3.1.2. 조형 작성자의 행동체계···········································································24
3.1.3. 조형 조작 단위 분석·················································································26
3.1.4. 작업 공간 특성···························································································27
3.2. 2세대 : 컴퓨터 환경에서의 조형 과정 ··························· 28
3.2.1. 조형 구축 프로세스 ···················································································32
3.2.2. 조형 조작 단위 분석················································································· 33
3.2.3. 작업 공간 특성···························································································36
3.3. 3세대 : NUI(Natural User Interface)기반의 조형 과정 37
3.3.1. 조형 구축 프로세스 ···················································································40
3.3.2. 조형 조작 단위 분석················································································· 42
3.3.3. 제스처 인터페이스 한계점 ·······································································46
제4장 비접촉 3D 조형 시스템 제스처 인터페이스 연구 48
4.1. 제스처 인터페이스 활용 연구··········································· 48
4.1.1. 제스처 선행 연구 조사 ············································································· 49
4.1.2. 조형 태스크 기반 제스처 타입 재정의·················································51
4.2. 조형 제작을 위한 제스처 인터페이스··························· 53
4.2.1. 사용자 인터페이스와 메타포··································································· 53
4.2.1.1. 인터페이스 메타포 ··············································································53
4.2.1.2. 인터페이스 메타포와 기호학 ···························································· 54
4.2.2. 어포던스와 인터페이스 메타포 관계 ····················································· 57
4.2.2.1. 어포던스 개념······················································································ 57
4.2.2.2. 어포던스와 인터페이스 메타포························································ 61
4.3. 조형 태스크별 제스처 인터페이스 메타포····················· 62
4.3.1. 조형 태스크별 시각적 메타포 ································································· 62
4.3.2. 조형 태스크별 행동적 메타포 ································································· 66
제5장 비접촉식 3D 조형 시스템 인터페이스 개발 ··· 73
5.1. 3D 조형 인터페이스 조작 최적화 제스처 제안············ 73
5.1.1. 제스처 인식 요소······················································································· 73
5.1.2. 비접촉 3D 조형 인터페이스 시스템 제안············································ 74
5.1.3. 조형 태스크별 제스처 인터페이스 제안 ··············································· 75
5.2. 3D 조형 시스템 인터페이스 디자인 시각화·················· 79
5.2.1. 정보 구조 ····································································································· 79
5.2.2. 비접촉 3D 조형 시스템 기능별 인터페이스 시각화·························· 81
5.2.2.1. 주요 메뉴 구성 ···················································································· 82
5.2.2.2. 작업 영역······························································································ 83
5.2.2.3. 도구 상자 영역 ···················································································· 86
5.2.2.4. 히스토리 영역······················································································ 88
5.2.2.5. 커뮤니티 영역······················································································ 89
제6장 비접촉식 시스템 인터페이스의 사용성 검증 ··· 92
6.1. 실험 개요··············································································· 92
6.2. 실험 설계············································································· 92
6.2.1. 실험 목적 ·····································································································92
6.2.2. 실험 대상 ·····································································································93
6.2.3. 실험 환경 ·····································································································93
6.2.4. 실험 절차 및 방법·····················································································95
6.2.4.1. 실험 1단계 : 태스크-제스처 연관성 ··············································96
6.2.4.2. 실험 2단계 : 시스템별 제스처 학습성 ··········································98
6.2.4.3. 실험 3단계 : 조형 형태 변형 태스크의 직관성························100
6.3 실험 결과·············································································· 101
6.3.1. 태스크 ? 제스처 직관성 ········································································103
6.3.2. GSS 시스템과 Leap Motion 시스템 태스크별 제스처 수행 시간105
6.3.2.1. 숙련도별 제스처 수행 시간 비교··················································105
6.3.2.2. 시스템간의 태스크별 평균 제스처 수행 시간 비교··················108
6.3.2.3. 시스템간 평균 제스처 수행 시간 비교 ········································110
6.3.3. GSS 시스템과 Leap Motion 시스템 태스크별 제스처 오류 횟수111
6.3.3.1. 숙련도별 제스처 오류 횟수 비교··················································111
6.3.3.2. 시스템간의 태스크별 평균 제스처 오류 횟수 비교··················114
6.3.3.3. 시스템간 평균 제스처 오류 횟수 비교········································116
6.3.4. GSS 시스템과 Leap Motion 시스템 태스크별 제스처 수행 만족도 117
6.4. 실험 종합 결과 및 제언 ··················································· 118
제7장 결론 및 향후 연구 과제 ····································· 121
7.1. 연구의 논의 및 시사점····················································· 121
7.2. 향후 연구 계획··································································· 123

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