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How well do line drawings depict shape?

Forrester Cole, Kevin Sanik, Doug DeCarlo, Adam Finkelstein, Thomas Funkhouser, Szymon Rusinkiewicz, Manish Singh
2009 ACM SIGGRAPH 2009 papers on - SIGGRAPH '09  
Our findings suggest that people interpret certain shapes almost as well from a line drawing as from a shaded image, that current computer graphics line drawing techniques can effectively depict shape  ...  Abstract This paper investigates the ability of sparse line drawings to depict 3D shape.  ...  The models used in the study come from the Aim@Shape, VAKHUN, and Cyberware repositories.  ... 
doi:10.1145/1576246.1531334 fatcat:6mb3raqdjjdvji5vclv6zy3jya

How well do line drawings depict shape?

Forrester Cole, Kevin Sanik, Doug DeCarlo, Adam Finkelstein, Thomas Funkhouser, Szymon Rusinkiewicz, Manish Singh
2009 ACM Transactions on Graphics  
Our findings suggest that people interpret certain shapes almost as well from a line drawing as from a shaded image, that current computer graphics line drawing techniques can effectively depict shape  ...  Abstract This paper investigates the ability of sparse line drawings to depict 3D shape.  ...  The models used in the study come from the Aim@Shape, VAKHUN, and Cyberware repositories.  ... 
doi:10.1145/1531326.1531334 fatcat:gfd6dr5fxza3ripj53kmhqs5aa

Depicting 3D shape using lines

Doug DeCarlo
2012 Human Vision and Electronic Imaging XVII  
This paper reviews what is known about the mathematics and perception of computer-generated line drawings of shape and motivates an ongoing program of research to better characterize the shapes people  ...  Over the last few years, researchers in computer graphics have developed sophisticated mathematical descriptions of lines on 3D shapes that can be rendered convincingly as strokes in drawings.  ...  INTRODUCTION Of the artistic styles that exist for depicting shape, line drawings are among the most intriguing.  ... 
doi:10.1117/12.916463 dblp:conf/hvei/DeCarlo12 fatcat:hpe64rmfnfd6dluu66q3lv63ca

How shape from contours affects shape from shading

Dejan Todorović
2014 Vision Research  
An experiment is reported in which 102 subjects matched twelve contoured grating displays (horizontal three-cycle gratings with variously shaped top and bottom contours) with perspective line drawings  ...  For each display there was a dominant matching drawing, chosen by the largest percentage of subjects, which varied from 95% to 26% across the set of displays.  ...  It was also pointed out that one of the drawings depicted a flat surface.  ... 
doi:10.1016/j.visres.2014.07.014 pmid:25130407 fatcat:tacqkf2nnjet5dmii6cfxqge2u

Sketch-based shape retrieval

Mathias Eitz, Ronald Richter, Tamy Boubekeur, Kristian Hildebrand, Marc Alexa
2012 ACM Transactions on Graphics  
Moreover, we demonstrate how to optimize the parameters of our, as well as other approaches, based on the gathered sketches.  ...  Based on this observation, we decide to use a bagof-features approach over computer generated line drawings of the objects.  ...  How do people sketch for 3D retrieval?  ... 
doi:10.1145/2185520.2335382 fatcat:a2aoj5yrhbddnou6cajrtnrus4

Sketch-based shape retrieval

Mathias Eitz, Ronald Richter, Tamy Boubekeur, Kristian Hildebrand, Marc Alexa
2012 ACM Transactions on Graphics  
Moreover, we demonstrate how to optimize the parameters of our, as well as other approaches, based on the gathered sketches.  ...  Based on this observation, we decide to use a bagof-features approach over computer generated line drawings of the objects.  ...  How do people sketch for 3D retrieval?  ... 
doi:10.1145/2185520.2185527 fatcat:etc3veer5rbezpxryadgjfxjgq

Highlight lines for conveying shape

Doug DeCarlo, Szymon Rusinkiewicz
2007 Proceedings of the 5th international symposium on Non-photorealistic animation and rendering - NPAR '07  
Recent work has shown that sparse lines defined on 3D shapes, including occluding contours and suggestive contours, are effective at conveying shape.  ...  We provide object-space definitions and algorithms for extracting these lines, explore several stylization possibilities, and compare the lines to ridges and valleys of intensity in diffuse-shaded images  ...  This work is partially supported by the National Science Foundation through grants CCF-0541185, CCF-0347427, and IIS-0511965, as well as the Sloan Foundation.  ... 
doi:10.1145/1274871.1274881 dblp:conf/npar/DeCarloR07 fatcat:hvmqwron2fevjkhw4i43ttn4oa

Shape and tone depiction for implicit surfaces

Emilio Vital Brazil, Ives Macêdo, Mario Costa Sousa, Luiz Velho, Luiz Henrique de Figueiredo
2011 Computers & graphics  
The implicit models are rendered using point-based primitives to depict shape and tone using silhouettes with hidden-line attenuation, drawing directions, and stippling.  ...  These qualities of HRBF Implicits are used to generate a robust distribution of points to position the drawing primitives.  ...  Acknowledgements We would like to thank the Digital Michelangelo Project, Stanford University for the David model, the Stanford Computer Graphics Laboratory, NTU 3D Model Database, the AIM@SHAPE project  ... 
doi:10.1016/j.cag.2010.09.017 fatcat:bj7o6p5ij5cdvpddtcw4fzq5z4

Demarcating curves for shape illustration

Michael Kolomenkin, Ilan Shimshoni, Ayellet Tal
2008 ACM SIGGRAPH Asia 2008 papers on - SIGGRAPH Asia '08  
Curves on objects can convey the inherent features of the shape. This paper defines a new class of view-independent curves, denoted demarcating curves.  ...  capabilities to extract and emphasize 3D textures, they are applied to artifact illustration in archaeology, where they can serve as a worthy alternative to the expensive, time-consuming, and biased manual depiction  ...  However, drawing only valleys (or ridges) is often insufficient, since they do not always convey the structure of the object. Drawing both will overload the image with too many lines.  ... 
doi:10.1145/1457515.1409110 fatcat:pcv5jbop5vcp7awdvv27aoek7a

Demarcating curves for shape illustration

Michael Kolomenkin, Ilan Shimshoni, Ayellet Tal
2008 ACM Transactions on Graphics  
Curves on objects can convey the inherent features of the shape. This paper defines a new class of view-independent curves, denoted demarcating curves.  ...  capabilities to extract and emphasize 3D textures, they are applied to artifact illustration in archaeology, where they can serve as a worthy alternative to the expensive, time-consuming, and biased manual depiction  ...  However, drawing only valleys (or ridges) is often insufficient, since they do not always convey the structure of the object. Drawing both will overload the image with too many lines.  ... 
doi:10.1145/1409060.1409110 fatcat:5oij23tjfzfk7lz6acajrd2ygi

Neural Contours: Learning to Draw Lines from 3D Shapes [article]

Difan Liu, Mohamed Nabail, Aaron Hertzmann, Evangelos Kalogerakis
2020 arXiv   pre-print
This paper introduces a method for learning to generate line drawings from 3D models.  ...  The model is trained on a large number of crowdsourced comparisons of line drawings.  ...  Related Work How do artists create line drawings, and how do people perceive them?  ... 
arXiv:2003.10333v3 fatcat:fivgja4otrgubmwpyfmaldgzoy

Sketch2Mesh: Reconstructing and Editing 3D Shapes from Sketches [article]

Benoit Guillard and Edoardo Remelli and Pierre Yvernay and Pascal Fua
2021 arXiv   pre-print
Furthermore, it can be used for shape refinement given only single pen strokes.  ...  Reconstructing 3D shape from 2D sketches has long been an open problem because the sketches only provide very sparse and ambiguous information.  ...  They are designed to emulate real line drawings in which lines other lines than the occluding contours are drawn to increase expressivity. SketchFD.  ... 
arXiv:2104.00482v2 fatcat:kmss74g3vzeoflmq7u73ucxcqy

Shaping Virtual Image

Daniele Rossi
2017 Proceedings (MDPI)  
After analyzing in detail the set of information and organizational and strategic activities that govern the shaping of the virtual image, the paper outlines the history of innovations that have technically  ...  Drawing for virtual reality means developing images that can be explored effectively.  ...  its possibility of modulating the depiction, hypothetically making it infinite.  ... 
doi:10.3390/proceedings1090961 fatcat:jhisxgoo2nbfbdwvpfpp64fayq

Suggestive contours for conveying shape

Doug DeCarlo, Adam Finkelstein, Szymon Rusinkiewicz, Anthony Santella
2003 ACM SIGGRAPH 2003 Papers on - SIGGRAPH '03  
In this paper, we describe a non-photorealistic rendering system that conveys shape using lines. We go beyond contours and creases by developing a new type of line to draw: the suggestive contour.  ...  We present a variety of results, arguing that these images convey shape more effectively than contour alone.  ...  In this paper, we suggest that lines in line-drawings can convey information about shape in this indirect way, and develop tools for realizing such lines automatically in non-photorealistic rendering (  ... 
doi:10.1145/1201775.882354 fatcat:wagp66eigjf3jelo47lieopjbi

Suggestive contours for conveying shape

Doug DeCarlo, Adam Finkelstein, Szymon Rusinkiewicz, Anthony Santella
2003 ACM Transactions on Graphics  
In this paper, we describe a non-photorealistic rendering system that conveys shape using lines. We go beyond contours and creases by developing a new type of line to draw: the suggestive contour.  ...  We present a variety of results, arguing that these images convey shape more effectively than contour alone.  ...  In this paper, we suggest that lines in line-drawings can convey information about shape in this indirect way, and develop tools for realizing such lines automatically in non-photorealistic rendering (  ... 
doi:10.1145/882262.882354 fatcat:745iuirelrbmlifufpqvujtpjy
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