motion doodles: an interface for sketching character motion siggraph ’04 speaker: alvin date: 5...
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Motion Doodles: An Interface for Sketching
Character MotionSIGGRAPH ’04Speaker: Alvin
Date: 5 July 2004
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
2
OutlineIntroductionFrameworkResultConclusionEvaluation Form
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
3
Introduction
A cursive motion specification.An interactive and easy system.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
5
Character Sketching
(a) The seven links. (b) Computed major and minor axes. (c) Oriented bounding boxes. (d) Computed joints (e) Computed skeleton.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
6
Motion Sketching
(1) Rough segmentation (2) Corner detection (3)Corner post-processing (4) Merge colinear segments (5) Identify pauses (6) Token assignment.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
7
Sketch Segmentation
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
8
Gesture Vocabulary
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
9
Motion Synthesis
Employ a parameterized keyframe-based motion synthesis.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
10
Sketching in 3D
Position the camera that covers the desired workspace in its FOV.The 3D character is modelled in advance.The 2D sketch segmentation points are back-projected into 3D scene.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
11
Sketching in 3D
Motion moving directly towards or away the camera is difficult to sketch.Some gestures become ambiguous.2 difference : foot placement and direction smoothing.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
13
Conclusion
A cursive language for sketching.Allow novices to quickly learn.An interactive system.Well-suited for Table PCs and electronic whiteboards.Simple enough for children.
Alivn/GAME Lab./CSIE/NDHU
Motion Doodles: An Interface for Sketching Character Motion
14
Evaluation Form
論文簡報部份完整性介紹 (3)系統性介紹 (4)表達能力 (4)投影片製作 (3)
論文審閱部分瞭解論文內容 (4)結果正確性與完整性 (3)原創性與重要性 (4)讀後啟發與應用:
請就各項選項給予一個分數 ( 0 = poor ~ 5 = excellent )
這篇論文非常的有創意,但對於我們的研究幫助有限,可是其利用將每段動畫分成數個階段的方法,可以套用在我們武功招式上,同樣地將每一個招式也分成數個階段,以減少比對樣本數目。
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