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An Introduction to marker-based Augmented Reality… Dimitris Tzionas.

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Presentation on theme: "An Introduction to marker-based Augmented Reality… Dimitris Tzionas."— Presentation transcript:

1 An Introduction to marker-based Augmented Reality… Dimitris Tzionas

2 …and holistic Pain Management

3 Augmented Reality

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10 Medicine Manufacturing/Repair Entertainment Culture Collaborative Apps Education Marketing TV Broadcasts/Sports Navigation

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12 Where?

13 Visual Tracking

14 “Visual Bits” “Printed Bits” Visual Tracking

15 Overview

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17 Independent Regions Scanlines

18 Intensity Gradient dense scanlines

19 Edgels pixels on the edge

20 Edgels (sub-pixel)

21 Edgels dense scanlines low thresh

22 Edgels sparse scanlines low thresh

23 Edgels dense scanlines

24 Edgels sparse scanlines

25 Edgels low thresh dense scanlines

26 Edgels medium thresh dense scanlines

27 Edgels high thresh dense scanlines

28 outliers inliers

29 dense scanlines outliers inliers

30 sparse scanlines outliers inliers

31 outliers inliers sparse scanlines

32 Connecting the Regions low thresh

33 Connecting the Lines low thresh

34 Connecting the Regions high thresh

35 Connecting the Lines high thresh

36 Lengthening the Lines

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39 Line “direction” slope of each line intensity gradient of edgels

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41 Marker frame detection

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43 Marker ID scanning Projective mapping

44 Marker ID sampling

45 Sampling

46 Sampled ID

47 “Printed Bits”

48 Marker IDs

49 Pose Estimation

50 Medical Visualization

51 Data markers

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53 ID markers

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55 Harsh Conditions

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57 …An introduction to holistic Pain Management…

58 Thank you

59 Thank you

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62 Marker ID scanning warping

63 ARToolkit ARToolkit+ ARTag

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