A COMPARISON AND EVALUATION OF MOTION INDEXING ...

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Figure 5.8: False negatives for DTW-Quat technique. Dynamic time warping tries to find the matching between the two files based on the minimum distance warping path. DTW matching is affected if there are pattern differences in the files. For example, if the query is an action describing a jump and the dataset file is a hop, then DTW-Quat will return a rejection. Similarly, a fast walk or a walk with swinging arms gives a low score when matched with a normal walk. There are a large number of false negatives detected (see Fig 5.8). We make use of all 30 joints to calculate the local distance measure and the distance increases even if a small number of joints mismatch. The noticeable feature of this technique is that the number of false positives is zero because to have a match there should be a very small difference in the joint configurations (see Fig 5.9). 56
Figure 5.9: False positives for DTW-Quat technique. 57
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A COMPARISON AND EVALUATION OF MOTI
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To my mom, dad, brother, friends an
Page 5 and 6:
ABSTRACT A COMPARISON AND EVALUATIO
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TABLE OF CONTENTS ACKNOWLEDGEMENTS
Page 9 and 10:
LIST OF FIGURES Figure Page 1.1 Ske
Page 11 and 12:
CHAPTER 1 INTRODUCTION Animation is
Page 13 and 14:
• Segmentation: The motion captur
Page 15 and 16: In several applications, like a mod
Page 17 and 18: provide fast interpolation but do n
Page 19 and 20: • Frame: Each slice of time of a
Page 21 and 22: Figure 1.1: Skeleton with bone name
Page 23 and 24: Figure 1.4: Snapshot of a sample AM
Page 25 and 26: CHAPTER 2 PCA-BASED TECHNIQUES In t
Page 27 and 28: The first step in a PCA analysis is
Page 29 and 30: of dimensions needed to represent t
Page 31 and 32: The PCA-SVD algorithm finds the val
Page 33 and 34: where Vr is a matrix with the first
Page 35 and 36: 2. Similarly combine the two segmen
Page 37 and 38: joints are known for every pose. He
Page 39 and 40: motion. Figure 3.1: Result of boole
Page 41 and 42: 2. Feature functions describing an
Page 43 and 44: F -equivalent if the corresponding
Page 45 and 46: 3.1.6.1 Inverted File Index Inverte
Page 47 and 48: the same set of exact hits. Figure
Page 49 and 50: CHAPTER 4 DYNAMIC TIME WARPING TECH
Page 51 and 52: Figure 4.1: Result of DTW technique
Page 53 and 54: operator \ to determine the relatio
Page 55 and 56: zmin = ¯z + ¯x ′ · sin(θmin)
Page 57 and 58: CHAPTER 5 EXPERIMENTS AND RESULTS W
Page 59 and 60: 5.2 Indexing Accuracy Testing To ev
Page 61 and 62: Figure 5.3: False positives for PCA
Page 63 and 64: Figure 5.5: False positives for PPC
Page 65: Figure 5.7: False positives for Fea
Page 69 and 70: Figure 5.11: False positives for DT
Page 71 and 72: Figure 5.13: False Negatives detect
Page 73 and 74: DTW[18]. DTW matching can also be i
Page 75 and 76: Animation techniques can be broadly
Page 77 and 78: directly modified or manipulated by
Page 79 and 80: B.1 Breif History Human beings are
Page 81 and 82: B.2 Motion Capture Technologies 1.
Page 83 and 84: (b) Active markers: Markers have on
Page 85 and 86: • Capture of movement: Subject we
Page 87 and 88: animation abilities, it can be help
Page 89 and 90: 74 09 127 23 138 19 141 14 75 19 79
Page 91 and 92: 10 04 walk with hands moving more 0
Page 93 and 94: 118 05 jump 118 06 jump 118 07 jump
Page 95 and 96: 143 25 waiving 143 08 jumping twist
Page 97 and 98: [9] A. J. Hanson, “Visualizing qu
Page 99: BIOGRAPHICAL STATEMENT Harnish Bhat
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