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Motion Doodles: An Interface for Sketching Character Motion SIGGRAPH ’04 Speaker: Alvin Date: 5 July 2004.

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Presentation on theme: "Motion Doodles: An Interface for Sketching Character Motion SIGGRAPH ’04 Speaker: Alvin Date: 5 July 2004."— Presentation transcript:

1 Motion Doodles: An Interface for Sketching Character Motion SIGGRAPH ’04 Speaker: Alvin Date: 5 July 2004

2 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion2 Outline Introduction Framework Result Conclusion Evaluation Form

3 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion3 Introduction A cursive motion specification. An interactive and easy system.

4 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion4 Framework

5 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion5 Character Sketching (a) The seven links. (b) Computed major and minor axes. (c) Oriented bounding boxes. (d) Computed joints (e) Computed skeleton.

6 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion6 Motion Sketching (1) Rough segmentation (2) Corner detection (3) Corner post-processing (4) Merge colinear segments (5) Identify pauses (6) Token assignment.

7 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion7 Sketch Segmentation

8 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion8 Gesture Vocabulary

9 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion9 Motion Synthesis Employ a parameterized keyframe-based motion synthesis.

10 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion10 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.

11 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion11 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.

12 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion12 Result

13 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion13 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.

14 Alivn/GAME Lab./CSIE/NDHU Motion Doodles: An Interface for Sketching Character Motion14 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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