1. Markerless Augmented Reality Platform Design and Verification of Tracking Technologies
Author：J.M. Zhong
Date：
Speaker：Sian-Lin Hong

2. Outline
Introduction AR
Platform design
Results
Conclusion
Outlook

3. 1. Introduction
Few of platforms are designed to different tracking algorithms for AR system
A novel tracking platform for AR environment, ARStudio, is proposed
少有AR系統是具有Marker以及Markerless辨識方法的
提出一個創新的AR辨識平台

4. 2. AR(1/7) Augmented Reality, AR
Showing the virtual object in real world
2. AR(1/7)

5. 2. AR(2/7) AR base framework Registration 定位, 亦有應用GPS定位 Rendering 三維繪圖
Interaction devices and techniques 人機互動技術
Presentation 展示
Authoring 創作

6. 2. AR(3/7)
Marker tracking
Marker Tracking

7. 2. AR(4/7)

8. 2. AR(5/7)

9. 2. AR(5/7) Markerless tracking 不需採用特定標記、圖樣 採用自然特徵追蹤技術
紋理、顏色、輪廓 是辨識的常見條件

10. 2. AR(7/7) Ambient light Camera resolution Image complexity
Image texture
Tracking angle
AR辨識Marker上的限制
環境光源、相機解析度、圖像的複雜度、圖像的材質、辨識的角度

11. 3. Platform design(1/3)
開發架構圖

12. 3. Platform design(2/3) Speeded Up Robust Features, SURF
Scale- and rotation-invariant detector and descriptor
With distinctiveness, and robustness
Can be computed and compared much faster
具有方向性、縮放不變之辨識
具有獨特性和魯棒性（強健性）
比較快、比較多的運算

13. 3. Platform design(3/3)
藉由SURF辨識法訓練產生特徵值

14. 4. Results(1/2)

15. 4. Results(2/2)

16. 5. Conclusion
Implemented a AR platform that can use between marker tracking and markerless tracking
Using SURF detector to tracking markerless

17. 3D object recognition
6. Outlook
立體物件的辨識