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研究生: 梁萬利
Nio Dolly Siswanto
論文名稱: 軍事迷彩服於CIELAB色彩空間探討
Color Design for Military Camouflage in CIELAB Color Space
指導教授: 林久翔
Chiuhsiang Joe Lin
口試委員: 張基展
李宗憲
Chi-Chan, Chang
學位類別: 碩士
Master
系所名稱: 管理學院 - 工業管理系
Department of Industrial Management
論文出版年: 2017
畢業學年度: 105
語文別: 英文
論文頁數: 76
中文關鍵詞: 迷彩服色彩空間CIE LAB反應時間軍事
外文關鍵詞: Camouflage Similarity Index, camouflage, L*a*b color space, military, Reaction time
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  • 本研究主要的目的希望透過情境的模擬能改善現有常見迷彩布顏色的選擇,在本研究中迷彩布通過以下幾個步驟進行模擬測試,本研究共有十位受測者,每一位受測者需在每一張呈現的畫面中找出8個目標點,而實驗中共35個色差變數。這些迷彩布色差變數的調整方式是透過色彩空間概念L*a*b進行三個因子各自逐一變化而成的(三個因子一次只能調整一個因子)。透過受測者任務完成時間的結果,找尋迷彩布色彩調整的準則。在測試當中螢幕會距離受測者55公分,依照視角的設計,事實上受測者所看見的目標距離受測者有75公尺遠。本研究希望測試在改變L*a*b單一元素的狀況下是否能夠降低目標被發現的可能,本研究利用CSI來測量背景與目標迷彩布的相似程度,同時也測量受測者的反應時間。實驗結果證實,透過變化L*a*b的方式可以降低目標被發現的可能。本研究最終驗證出能使迷彩布此目標不易被發現的色階範圍,當迷彩布的顏色變暗(降低L值)、色彩靠近綠色階(降低a值)或是靠近黃色階(提升b 值)是最不容易被人眼所發現的


    This study proposes a way to improve an existing camouflage colors selection through simulation. The camouflage used in this experiment went through few processes to be used in a simulation. Ten participants identified eight targets in each of the 35 variations for the initial experiment and the results were then used as references to create adjustments. The targets were located on the monitor that was located 55cm away from them to simulate 75m distance. The variations are made in single-factor manner based on L*a*b* color space. This study examined the possibility of reducing the detectability of a camouflage cloth by shifting the colors to one of the axis of the L*a*b* color space. CSI was used to measure the similarity between the target and the background, and reaction time was recorded. The result shows that improvements can be made with single-factor variations, which is to make it darker (lower L* value), greener (lower a*) value, or yellower (higher b*) value. It is also possible to find range of color to be used for the camouflage until it becomes too noticeable.

    Contents Cover i 摘要 ii Abstract vi List of Tables x List of Figures xi CHAPTER 1 INTRODUCTION 1 1.1 Research Background 1 1.2 Research Objective 3 1.3 Research Limitations 3 1.4 Study Framework 4 CHAPTER 2 LITERATURE REVIEW 6 2.1 Vision, Color, and CIELAB 6 2.2 Camouflage 8 2.3 Camouflage Similarity Index (CSI) 9 CHAPTER 3 RESEARCH METHODOLOGY& EXPERIMENTAL DESIGN 11 3.1 Creating the Images Used 11 3.1.1 Processing the Camouflage 12 3.1.2 Creating Human Shape Camouflage 12 3.1.3 Creating Variations in Color 13 3.1.4 CSI Measurement 16 3.1.5 Creating the Stimuli Combination 18 3.1.6 Monitor Calibration 19 3.2 Creating the Experiment 19 3.2.2 Measuring the Click Area 19 3.3 Experimental Procedures 20 3.3.1 Equipment used 23 3.3.2 Viewing Conditions 25 3.3.4 Analysis Method and Hypothesis 28 CHAPTER 4 RESULTS 30 4.1 Data Collection 30 4.2 Initial Data Analysis 31 4.3 New Camouflage Colours Adjustments 42 4.3.1 L-40 Adjusted 42 4.3.2 A-60 Adjusted 43 4.3.3 B+120 Adjusted 44 4.3.4 CSI Pick 45 4.4 Second Experiment Results and Data Analysis 46 CHAPTER 5 DISCUSSION 49 5.1 Single-Factor Variations 49 5.2 Adjustments 50 5.3 Methodological Improvements 51 CHAPTER 6 CONCLUSION 53 6.1 Conclusion 53 6.2 Further Research 54 Appendixes 55 Appendix A: Experiment Condition 55 Appendix B: Participant Consent Form 58 Appendix C: Average L*a*b* value of the variations 61 Appendix D: ∆L, ∆a, and ∆b 62 Reference 63

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