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Rotationally Invariant Descriptors Using Intensity Order Pooling Yi-Chung Chen Advisor S.J.Wang.

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Presentation on theme: "Rotationally Invariant Descriptors Using Intensity Order Pooling Yi-Chung Chen Advisor S.J.Wang."— Presentation transcript:

1 Rotationally Invariant Descriptors Using Intensity Order Pooling Yi-Chung Chen Advisor S.J.Wang

2 2012 IEEE, Bin Fan, Fuchao Wu, and Zhanyi Hu

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5 Proposed method SIFT

6 Outline Why do we need this ? What is the key concepts ? How does it work exactly ? When should we use it ?

7 Why do we need this ?

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10 0 2 36% 64%

11 Why do we need this ? Robustness Distinctiveness

12 Why do we need this ?

13 0255/2π 0 1

14 Why do we need this ? 0255/2π 0 1 Robustness Distinctiveness

15 Why do we need this ? RobustnessDistinctiveness

16 Why do we need this ? RobustnessDistinctiveness

17 What is the key concepts ? RobustnessDistinctiveness

18 What is the key concepts ?

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20 Intensity Order Pooling

21 What is the key concepts ? Robustness Distinctiveness

22 How does it work exactly ?

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24 Robustness Distinctiveness

25 How does it work exactly ? MRRID Multisupport Region Rotation and Intensity Monotonic Invariant Descriptor MROGH Multisupport Region Order-Based Gradient Histogram

26 When should we use it ? Blur/illu. changes MRRID > MROGH > SIFT,RIFT,DAISY …… Most cases MROGH > MRRID > SIFT,RIFT,DAISY ……

27 When should we use it ?

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33 Questions ?


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