A Study on the Detection of Circles and Arcs Using the Least Squares Method
- Affiliation
- Pukyong National University
- Department
- 대학원 IT융합응용공학과
- Advisor
- 김종남
- Table Of Contents
- I. Introduction 1
1. Background 1
2. Purpose and structure of the thesis 2
II. Conventional methods of arcs detection 4
1. Hough Transform 4
1.1. Circle Hough Transform 5
1.2. Disadvantages of the Hough Transform 7
2. Variations of the Circle Hough Transform 8
3. Least squares method 9
III. Proposed Approach of circular arc detection using the least squares method 11
1. Introduction 11
2. Pre-processing operations 13
2.1. Median Filtering 13
2.2. Thresholding 14
2.3. Canny Edge detection 14
3. Selection of the best Part of an arc using 3 points 15
4. Least squares circle fitting 17
5. Detection of the two ending points of the arc 17
IV. Experimental Results 18
1. Dataset 18
2. Evaluation Environment 18
3. Experiments 18
4. Performance Evaluation 24
5. Analysis and Comparison 28
6. Error analysis 29
V. Conclusion 30
References 31
- Degree
- Master
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- 대학원 > IT융합응용공학과
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