數位影像於光學測距之應用

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徐祥瀚(Hsian-Han Hsu) 查詢紙本館藏

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光電科學與工程學系

論文名稱

數位影像於光學測距之應用
(The Application of Digital Image in Optical Range Finder)

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★ 離焦對影像品質的影響

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摘要(英)

Abstract
The applications of CMOS image sensor play more and more important role on engineering measurements because of its low price and versatility. What its limitations and functions are of interest. The purpose of this study shows combination of digital image processing and CMOS image sensor, with delicate optical imaging system and proper math models, this system offers satisfied precision and stability. In addition, from these digital image models, we conclude that they can be applied to not only general size or distance measurements but evaluations of subpixel resolution. In this thesis, some digital image theories and large amount of data are presented. Though aberrations modified on image plane by digital image theory at last chapter do not have a series of complete verification, this characterizes the feasibility of higher precision and more practicability provided by CMOS image sensor.

關鍵字(中)

★ 光學測距儀
★ 三角量測
★ 數位影像

關鍵字(英)

★ ZOM
★ triangulation
★ CMOS image sensor
★ range finder

論文目次

Abstract
Acknowledgements
1 Introduction 1
1.1 CMOS Image Sensor in Industrial Measurement 1
1.2 The Thesis 2
2 Background 3
2.1 Some Basic Transformations 3
2.2 Imaging Transformation 6
2.3 Camera Model 8
2.4 Image Analysis 10
2.5 Noise Effect 20
3 Passive Range Finder 25
3.1 System Overview 25
3.2 Instruments 27
3.3 LED Spots Analyses 32
3.4 System Resolution 39
3.5 Experiments and Results 41
4 Active Laser Range Finder 47
4.1 System Overview 47
4.2 The Choose of Some Parameters 50
4.3 Instruments 55
4.4 LD Spot Analysis 59
5 Discussion 63
5.1 Precision Evaluation 63
5.2 Camera Calibration 74
5.2 Conclusion 75
A Features of Hynix HV7121B 77
Reference

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指導教授

梁忠義(Chung-Yee Leung)

審核日期

2003-7-3

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