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1 23

2

3 i

4 ii

5 Sumi-Nagashi I/O Brush ( ) ( ) iii

6 Painter 1 SAI 2 Pixia Corel Painter (URL : 2 Easy Paint Tool SAI (URL : 3 Pixia (URL : 1

7 ( 1.1) 描画するテクスチャの選択 大きさ, 向き, 変形率の調整 1.1: 1.1 2

8

9 Vandoren [1] FTIR Thermo Painter[2] Hornof EyeDraw[3] Harada Voicedraw[4] 1. Kamp / [5] Chen [6]. Horace Body-Brush[7] 3 [3][4][5] 1 cat a law aw feet ee 4

10 2.2 描画のフィードバックに関する研究 図 2.1: Sumi-Nagashi 櫻井らによる Sequential Graphics[8] は 描画時の臨場感を再現するペイントソフトである このシステムは目の前で絵画を制作する様子を見せるライブペインティングのように 視覚的 に制作過程の臨場感 および制作者の心景を感じ取ることを目指している また Yoshida らは 日本の伝統的な絵画手法である 墨流し をモチーフとしたデジタルペイントツールを開発し た [9] このシステムでは 逐次的に変化する絵画の流れを視覚的に得ることが出来る さら に 色に 重さ という概念を定義し この感触を力覚ディスプレイである Proactive Desk[10] を用いることでユーザに提示している (図 2.1) 一方 描画シミュレータである DAB[11] や Gregory らの研究 [12] は 力覚ディスプレイである PHANToM 2 を利用することによって ユーザへのフィードバックとして実際にキャンバスと筆が接触しているような感覚を提示し ている これらのシステムは全てペンや力覚ディスプレイによる描画を行っているが 本研究では このようなデバイスを用いた描画は行わない また これらのうち [9][11][12] はキャンバス と画筆との接触を想定した力覚フィードバックを提示する研究となっており キャンバスと 接することなく描画を実現する本研究とは異なる 2.3 偶然性を活かした描画手法に関する研究 Lee ら [13] は 絵具を垂らして描画を行う技法を 流体シミュレーションによって再現す るペイントソフトを開発した Ryokai らによる I/O Brush[14] は 筆型デバイスに取り付けら れたカメラでキャプチャした画像を インク として扱い 描画を行うペイントソフトである 2 Sensable PHANToM (URL : 5

11 2.2: I/O Brush ( 2.2) Roll Canvas[15] I/O Brush Lee RollCanvas x, y 2 z 6

12 3 3.1 [16][17] [17] [17] [18] [19] (dripping) 3.1(a) Jackson Pollock[20] Pollock ( ) (spattering) 3.1(b) 7

13 1 (a) (b) 3.1: cm 15cm 30cm (12ml) 2 (12ml) 2 1 URL: 2 URL: 8

14 ( ) 15 ( ) ( ) S120 B cm 15cm 30cm 3.2: URL: book/ 9

15 5cm 15cm 30cm 図 3.3: ドリッピングにおける位置の違いによる描画の違い 5cm 15cm 図 3.4: スパッタリングにおける位置の違いによる描画の違い 10

16 (z ) (x, y ) (x, y ) (z )

17 3.5 横から見た図 上から見た図 3.5: 3.6 横から見た図 上から見た図 3.6:

18 (a) (b) 3.7: ( ) 13

19 (a) (b) 3.8: ( ) 14

20 OS Windows7 Professional CPU Intel Core i7 2820QM 2.30GHz IDE Visual Studio 2010 C++ Kinect 1 Prime Sensor OpenNI 2 OS Windows Vista Home Basic CPU Intel Core2 Quad 2.50GHz IDE Visual Studio 2010 C++ openframeworks Kinect for Xbox 360 (URL : 2 OpenNI. PrimeSense Sensor Module (URL : 3 openframeworks (URL : 15

21 Wacom Cintiq 12WX 4 RGB Microsoft Kinect Kinect Kinect センサ PC 机 液晶タブレット PC 4.1: Wacom Cintiq 12WX (URL : 16

22 4.2: RGB Depth 4.4 Kinect Depth ( 4.5) ( 4.4(a)) ( 4.4(b)) OpenNI NITE ( ) XnVWaveDetector 17

23 位置情報解析部 キャンバス面の位置認識 手の位置認識 3 次元情報解析 文字列に変換 送信 描画部 ソケット通信 受信 数値に変換 描画技法の推定 パラメータ調整, 描画 4.3: 18

24 (a) RGB 画像 (b) Depth 画像 図 4.4: 情報取得モジュールで表示される 2 画像 (a) RGB 画像 (b) Depth 画像 図 4.5: 調整用用紙 19

25 OpenNI OpenNI 4.6 カメラに向かって手を振る 認識されると手のトラッキングが開始される 4.6: 3 3 ( 4.7) 3 Kinectセンサ y z x z x y 液晶タブレット 4.7: P 0 P 1 P 2 P 3 P P 0 20

26 P 1 P 3 v 0 v 1 n v 0 v 1 ( 4.8) n P v0 P0 v1 P 3 P 1 P 2 4.8: 2. 1 H ( 4.9) n P P 0 P 3 P 1 P 2 H 4.9: 3. P 2 H h z P H I ( 4.10) 4. v 1 P 0 H 3 I H h x ( 4.11(a)) v 0 P 0 H H I h y ( 4.11(b)) x, y 21

27 n P P 0 I h P 3 P 1 P 2 H 4.10: n (a) x (b) y 4.11: 22

28 2 TCP/IP 65msec TCP/IP openframeworks ofxnetwork ( 65msec ) 3 ( z ) ( 2 x, y ) x y (x, y) x y (x, y) 23

29 h diff D h diff ( D ) ( h diff ) ( z ) ( z ) Algorithm 1 h diff z D if h diff > 1 then if D < 2 then end if else if 3 < h diff < 4 then if D > 5 then end if end if 3 (x, y) P os.x P os.y col z 10 rad z cm 24

30 Algorithm 2 P os.x x P os.y y col RGBA ( ) rad z /10 i 0 if rad <= 10 then rad (P os.x, P os.y) else if 10cm < rad <= 20 then rad (P os.x, P os.y) while i < do drawrad 1 rad drawdist 0 rad*( ) drawdirection 0 2π (P os.x, P os.y) drawdirection drawdist drawrad i i + 1 end while else if rad < 20 then rad (P os.x, P os.y) while i < do drawrad 1 rad/( ) drawdist 0 rad*( ) drawdirection 0 2π (P os.x, P os.y) drawdirection drawdist drawrad i i + 1 end while end if 25

31 (P os.x P os.y) 1 rad 10cm 20cm 10cm (P os.x P os.y) rad 1 rad drawrad 0 rad drawdist 2π π drawdirection (P os.x P os.y) drawdirection drawdist drawrad 20cm 10 20cm 20cm drawrad drawdist drawrad 10cm 20cm rad rad 10cm 20cm drawdist 0 rad 10cm 20cm (a) 4.12(b) 2 2 D (x, y) (x, y) 3 2 P os.x P os.y D col direction 0.5px 1.5px 1.0px 1.0px drawrad 0 D drawdist drawdirection 26

32 (a) (b) 4.12: Algorithm 3 P os.x 65msec x P os.y 65msec y col RGBA ( ) D direction ( ) i 0 while i < do drawrad 0.5px 1.5px drawdist 0 D drawdirection direction (P os.x, P os.y) drawdirection drawdist drawrad i i + 1 end while 27

33 direction (P os.x P os.y) drawdirection drawdist drawrad (a) 4.13(b) (a) (b) 4.13: RGBA ( 4.14) Space / Enter PNG c 28

34 4.14: 29

35 :

36 (a) A (b) B (c) C 5.2: 31

37 5.1.1 Undo

38 OpenCV 1 1 OpenCV (URL : 33

39 6 34

40 35

41 [1] Peter Vandoren, Luc Claesen, Tom Van Laerhoven, Johannes Taelman, Chris Raymaekers, Eddy Flerackers, Frank Van Reeth. FluidPaint: an interactive digital painting system using real wet brushes. ITS 09: Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces, pp.53-56, [2] Thermo Painter 46(7) pp [3] Anthony J. Hornof, Anna Cavender. EyeDraw: enabling children with severe motor impairments to draw with their eyes. CHI 05: Proceedings of the SIGCHI conference on Human factors in computing systems, pp , [4] Susumu Harada, Jacob O. Wobbrock, James A. Landay. Voicedraw: a hands-free voice-driven drawing application for people with motor impairments. Assets 07: Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility, pp.27-34, [5] Jan van der Kamp, Veronica Sundstedty. Gaze and voice controlled drawing. NGCA 11: Proceedings of the 1st Conference on Novel Gaze-Controlled Applications, Article No.9, [6] Xinlei Chen, Hideki Koike, Yasuto Nakanishi, Kenji Oka, Yoichi Sato. Two-handed drawing on augmented desk system. AVI 02: Proceedings of the Working Conference on Advanced Visual Interfaces, pp , [7] Horace H. S. Ip, Young Hay, Alex C. C. Tang. Body-Brush: a body-driven interface for visual aesthetics. MULTIMEDIA 02: Proceedings of the tenth ACM international conference on Multimedia, pp , [8] Sequential Graphics: WISS 2008: 16th Workshop on Interactive Systems and Software, pp.29-34, [9] Sumi-nagashi: creation of new style media art with haptic digital colors. Shunsuke Yoshida, Jun Kurumisawa, Haruo Noma, Nobuji Tetsutani, Kenichi Hosaka. MULTIMEDIA 04: Proceedings of the 12th annual ACM international conference on Multimedia, pp ,

42 [10] Proactive Desk: 2003, pp , [11] Bill Baxter, Vincent Scheib, Ming C. Lin, Dinesh Manocha. DAB: interactive haptic painting with 3D virtual brushes. SIGGRAPH 01: Proceedings of the 28th annual conference on Computer graphics and interactive techniques, pp , [12] Arthur D. Gregory, Stephen A. Ehmann, Ming C. Lin. intouch: Interactive Multiresolution Modeling and 3D Painting with a Haptic Interface. IEEE Virtual Reality, pp.45-52, [13] Sangwon Lee, Sven C. Olsen, Bruce Gooch. Interactive 3D Fluid Jet Painting. NPAR 06: Proceedings of the 4th international symposium on Non-photorealistic animation and rendering, pp , [14] K. Ryokai, S. Marti, H. Ishii. I/O brush: drawing with everyday objects as ink CHI 04: Proceedings of the SIGCHI conference on Human factors in computing systems, pp , [15] Minimal Drawing 12(3) pp [16] [17] [18] [19] [20] GRANDE ENCICROPEDIA dell ARTE, 5, pp.269.,

修士論文の和文要旨 研究科 専攻大学院情報理工学研究科情報 通信工学専攻博士前期課程 氏名春田英和学籍番号 1231074 論文題目 さわれる拡張現実感システムの検討 要 旨 本研究では,AR(Augmented Reality,AR) と様々な入力デバイスを用いた 3DCG モデリングシステムを実装し, さらに物理エンジンと組み合わせることで, さわれる拡張現実感 (AR) システムの有効性を確認した.

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