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How well do line drawings depict shape?
2009
ACM SIGGRAPH 2009 papers on - SIGGRAPH '09
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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?
2009
ACM Transactions on Graphics
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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
2012
Human Vision and Electronic Imaging XVII
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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
2014
Vision Research
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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
2012
ACM Transactions on Graphics
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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
2012
ACM Transactions on Graphics
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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
2007
Proceedings of the 5th international symposium on Non-photorealistic animation and rendering - NPAR '07
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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
2011
Computers & graphics
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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
2008
ACM SIGGRAPH Asia 2008 papers on - SIGGRAPH Asia '08
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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
2008
ACM Transactions on Graphics
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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]
2020
arXiv
pre-print
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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]
2021
arXiv
pre-print
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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
2017
Proceedings (MDPI)
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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
2003
ACM SIGGRAPH 2003 Papers on - SIGGRAPH '03
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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
2003
ACM Transactions on Graphics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2015; you can also visit the original URL.
The file type is application/pdf.
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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