인지적 특성에 기반을 둔 화질 평가 방법 -화질 평가 모형 제작을 중심으로- = The Methods to Evaluate the Image Quality Based on Cognitive Basis

다국어 초록 (Multilingual Abstract)

Recent changes show that the goals of reproduction devices have changed from accurately reproducing scenes to improving user preferences. It implies that the directions in developing cameras, the most common reproduction devices, are moving from performance -centered to quality-centered, from developers to users. Accepting such changes demand new standards in evaluating reproduction devices. This paper suggests a new method to evaluate the quality of images, based on cognitive properties of users. Through precedent studies and analysis, elements that effect the quality of images has been classified, and the applicability of the model has been assessed with preliminary tests. The classified elements are detail, tone reproduction and color reproduction. Presuming that the elements influence one and other, numbers of hypothesis were drawn to meet each item. 1,015 test stimuli had been produced to verify the hypothesis, and 84 test stimuli were selected by user preference. The experiment was carried out to 127 subjects, with the 84 test stimuli and 11 evaluation factors, followed by an analysis using structural equation modeling. Final evaluation model suggested is on the basis of the test results.

참고문헌 (Reference)

1 노연숙, "인물 촬영을 위한 디지털 카메라의 적정 노출 설정 연구 :피부톤 재현 선호도를 중심으로" 한국콘텐츠학회 8 (8): 111-118, 2008

2 정우현, "사진의 밝기, 대비, 색조의 변화가 감상자의 감성인상에 미치는 효과" 한국사진학회 (14) : 149-156, 2006

3 박수진, "사진 이미지와 관련된 감성 어휘 분석 및 색 유무에 따른 감성 반응 비교" 한국감성과학회 7 (7): 41-49, 2004

4 양병화, "다변량 데이터 분석법의 이해" 커뮤니케이션북스 2006

5 배준성, "구조방정식을 이용한 이동통신단말기의 고객만족 평가 요인간 인과관계 모형" 홍익대학교 산업공학 전공 2002

6 노연숙, "광원에 따른 화이트 밸런스의 JND 특성과 선호 설정 연구" 한국색채학회 21 (21): 1-8, 2007

7 이구형, "감성과 감정의 이해를 통한 감성의 체계적 측정 평가" 1 (1): 113-122, 1998

8 Feigenbaum, "Total Quality Control" Mcgraw-Hill 1983

9 장은혜, "TV 화질에 대한 감성평가척도 개발" 한국감성과학회 12 (12): 121-128, 2009

10 E. Bruce Goldstein, "Sensation & Perception 7th ed 감각과 지각" 시그마 프레스 2007

11 송지준, "SPSS/AMOS 통계분석방법" 21세기사 2009

12 Peter G. Engeldrum, "Psychometric Scaling: Avoiding the Pitfalls and Hazards" 101-107, 2001

13 ISO 20462, "Photography-Psychophysical experimental methods to estimate image quality"

14 ITU-R Rec. BT, "Methodology for the subjective assessment of the quality of television pictures"

15 Don Williams, "Imaging Performance Taxonomy. SPIE-IS&T Electronic Imaging Symposium" CA 2009

16 Hamid Rahim Sheikh, "Image Quality Assessment Using Natural Scene Statistics" The University of Texas at Austin, TX 2004

17 Brain W. Keelan, "Handbook of Image Quality; Characterization and Prediction" Marcel Dekker 2002

18 S.N., "Colourfulness judgments of natural scenes" 77 : 79-94, 1997

19 Boust, C., "Color Enhancement of Digital images by Experts and Preference Judgments by Observer" 50 (50): 1-11, 2006

20 Robert L. Solso, "Cognition & the Visual Art 시각 심리학" 시그마프레스 2000

21 Marius Pedersen, "Attributes of a New Image Quality Model for Color Prints" 204-209, 2009

22 S. R. Fernandez, "Analysis of observer and cultural variability while generating “preferred” color reproductions of pictorial images" 49 (49): 96-104, 2005