On expert performance in 3D curve-drawing tasks

A study is described which examines the drawing accuracy of experts when drawing foreshortened projections of 3D curves in ecologically-valid conditions. The main result of this study is that the distribution of error in expert drawings exhibits a bias similar to that previously observed in non-expert subjects, which is dependent on the degree of foreshortening of the imagined drawing surface. A review of existing perceptual studies also finds that only absolute 2D image-space error has been considered, which has been found to be largest with viewing angles of 25--55°. Our visualizations of 3D error indicate that 3D bias continues to increase with decreasing viewing angle. Based on these findings, we analyze current 3D curve drawing techniques for susceptibility to foreshortening bias, and make some suggestions for future sketch-based modeling systems.

[1]  Brian Wyvill,et al.  Sketch-based modeling with the blob tree , 2005, SIGGRAPH '05.

[2]  D Purves,et al.  Why are angles misperceived? , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[3]  Dale Purves,et al.  A statistical explanation of visual space , 2003, Nature Neuroscience.

[4]  Gnanathusharan Rajendran,et al.  How perception impacts on drawings. , 2005, Journal of experimental psychology. Human perception and performance.

[5]  Adam Finkelstein,et al.  Where do people draw lines? , 2008, ACM Trans. Graph..

[6]  D. Cohen,et al.  Why can't most people draw what they see? , 1997, Journal of experimental psychology. Human perception and performance.

[7]  Erik Reinhard,et al.  Artistic Composition for Image Creation , 2001, Rendering Techniques.

[8]  Ravin Balakrishnan,et al.  ILoveSketch: as-natural-as-possible sketching system for creating 3d curve models , 2008, UIST '08.

[9]  Wolfgang Stuerzlinger,et al.  SESAME: towards better 3D conceptual design systems , 2006, DIS '06.

[10]  Holly E. Rushmeier,et al.  The Mental Canvas: A Tool for Conceptual Architectural Design and Analysis , 2007, 15th Pacific Conference on Computer Graphics and Applications (PG'07).

[11]  Levent Burak Kara,et al.  Sketch-Based 3D-Shape Creation for Industrial Styling Design , 2007, IEEE Computer Graphics and Applications.

[12]  Marc Alexa,et al.  FiberMesh: designing freeform surfaces with 3D curves , 2007, ACM Trans. Graph..

[13]  J. Hughes,et al.  SmoothSketch: 3D free-form shapes from complex sketches , 2006, ACM Trans. Graph..

[14]  Thomas Baudel,et al.  A mark-based interaction paradigm for free-hand drawing , 1994, UIST '94.

[15]  John M. Kennedy,et al.  Foreshortening and the perception of parallel projections , 1993, Perception & psychophysics.

[16]  Satoshi Matsuoka,et al.  Teddy: A Sketching Interface for 3D Freeform Design , 1999, SIGGRAPH Courses.

[17]  J. Hughes,et al.  SmoothSketch: 3D free-form shapes from complex sketches , 2006, SIGGRAPH '06.

[18]  Igor Juricevic,et al.  Ellipses on the Surface of a Picture , 2008, Perception.

[19]  J. Kennedy,et al.  Foreshortening in Cube Drawings by Children and Adults , 1995, Perception.

[20]  Chang Hong Liu,et al.  What Hinders Accurate Depiction of Projective Shape? , 1995, Perception.

[21]  Mats Lind,et al.  Large continuous perspective transformations are necessary and sufficient for accurate perception of metric shape , 2008, Perception & psychophysics.

[22]  John F. Hughes,et al.  SKETCH: An Interface for Sketching 3D Scenes , 1996, SIGGRAPH.

[23]  Hiromasa Suzuki,et al.  A two-stage approach for interpreting line drawings of curved objects , 2004, SBM'04.

[24]  Dejan Todorović,et al.  Is Pictorial Perception Robust? The Effect of the Observer Vantage Point on the Perceived Depth Structure of Linear-Perspective Images , 2008, Perception.

[25]  Lee Markosian,et al.  An interface for sketching 3D curves , 1999, SI3D.

[26]  William Buxton,et al.  Creating principal 3D curves with digital tape drawing , 2002, CHI.

[27]  W. Matthews,et al.  Another Reason Why Adults Find it Hard to Draw Accurately , 2008, Perception.

[28]  P. Mitchell,et al.  Judgments of apparent shape contaminated by knowledge of reality: Viewing circles obliquely , 1997 .

[29]  Harry Shum,et al.  Sketching reality: Realistic interpretation of architectural designs , 2008, TOGS.

[30]  Aaro Toomela,et al.  Drawing Development: Stages in the Representation of a Cube and a Cylinder. , 1999 .

[31]  Kiia Kallio.  3D6B Editor: Projective 3D Sketching with Line-Based Rendering , 2005, SBM.

[32]  David Pugh,et al.  Designing solid objects using interactive sketch interpretation , 1992, I3D '92.

[33]  Eun-Sook Kwon,et al.  Digital Styling for Designers: Sketch Emulation in Computer Environment , 2003, ICCSA.

[34]  Hod Lipson,et al.  A sketch-based interface for iterative design and analysis of 3D objects , 2007, SBM.

[35]  Abhishek Ranjan,et al.  A suggestive interface for image guided 3D sketching , 2004, CHI.

[36]  Sangwon Lee,et al.  Automatic construction of 3D models from architectural line drawings , 2008, I3D '08.

[37]  Brian Wyvill,et al.  ShapeShop: sketch-based solid modeling with BlobTrees , 2006, SBM.

[38]  Dale Purves,et al.  Natural-scene geometry predicts the perception of angles and line orientation. , 2005, Proceedings of the National Academy of Sciences of the United States of America.

[39]  Ramesh Raskar,et al.  Epipolar methods for multi-view sketching , 2004, SBM'04.

[40]  Aaron Kozbelt,et al.  Artists as experts in visual cognition , 2001 .