Use of non-photorealistic rendering and photometric stereo in making bas-reliefs from photographs

J. Wu; R. R. Martin; P. L. Rosin; X. F. Sun; Y. K. Lai; Y. H. Liu; C. Wallraven

doi:10.1016/j.gmod.2014.02.002

Use of non-photorealistic rendering and photometric stereo in making bas-reliefs from photographs

J. Wu, R. R. Martin, P. L. Rosin, X. F. Sun, Y. K. Lai, Y. H. Liu, C. Wallraven

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Automatic bas-relief generation from 2D photographs potentially has applications to coinage, commemorative medals and souvenirs. However, current methods are not yet ready for real use in industry due to insufficient artistic effect, noticeable distortion, and unbalanced contrast. We previously proposed a shape-from-shading (SFS) based method to automatically generate bas-reliefs from single frontal photographs of human faces; however, suppression of unwanted details remained a problem. Here, we give experimental results showing how incorporating non-photorealistic rendering (NPR) into our previous framework enables us to both suppress unwanted detail, and yet also emphasize important features. We have consider an alternative approach to recovering relief shape, based on photometric stereo instead of SFS for surface orientation estimation. This can effectively reduce the computational time.

Original language	English
Pages (from-to)	202-213
Number of pages	12
Journal	Graphical Models
Volume	76
Issue number	4
DOIs	https://doi.org/10.1016/j.gmod.2014.02.002
Publication status	Published - 2014 Jul

Bibliographical note

Funding Information:
This work was supported by the One Wales Research Institute of Visual Computing (RIVIC) funded by a grant from the Welsh Government. We are grateful to Marc Alexa, Jinhui Yu, and Zhuwen Li for providing us their results for comparison, and to other researchers who have made various data publicly available. We also wish to thank Delcam and The Royal Mint for their support and useful discussions.

Keywords

Bas-relief
Non-photorealistic rendering
Photometric stereo
Shape-from-shading

ASJC Scopus subject areas

Software
Modelling and Simulation
Geometry and Topology
Computer Graphics and Computer-Aided Design

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10.1016/j.gmod.2014.02.002

Cite this

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title = "Use of non-photorealistic rendering and photometric stereo in making bas-reliefs from photographs",

abstract = "Automatic bas-relief generation from 2D photographs potentially has applications to coinage, commemorative medals and souvenirs. However, current methods are not yet ready for real use in industry due to insufficient artistic effect, noticeable distortion, and unbalanced contrast. We previously proposed a shape-from-shading (SFS) based method to automatically generate bas-reliefs from single frontal photographs of human faces; however, suppression of unwanted details remained a problem. Here, we give experimental results showing how incorporating non-photorealistic rendering (NPR) into our previous framework enables us to both suppress unwanted detail, and yet also emphasize important features. We have consider an alternative approach to recovering relief shape, based on photometric stereo instead of SFS for surface orientation estimation. This can effectively reduce the computational time.",

keywords = "Bas-relief, Non-photorealistic rendering, Photometric stereo, Shape-from-shading",

author = "J. Wu and Martin, {R. R.} and Rosin, {P. L.} and Sun, {X. F.} and Lai, {Y. K.} and Liu, {Y. H.} and C. Wallraven",

note = "Funding Information: This work was supported by the One Wales Research Institute of Visual Computing (RIVIC) funded by a grant from the Welsh Government. We are grateful to Marc Alexa, Jinhui Yu, and Zhuwen Li for providing us their results for comparison, and to other researchers who have made various data publicly available. We also wish to thank Delcam and The Royal Mint for their support and useful discussions. ",

year = "2014",

month = jul,

doi = "10.1016/j.gmod.2014.02.002",

language = "English",

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AU - Martin, R. R.

AU - Rosin, P. L.

AU - Sun, X. F.

AU - Lai, Y. K.

AU - Liu, Y. H.

AU - Wallraven, C.

N1 - Funding Information: This work was supported by the One Wales Research Institute of Visual Computing (RIVIC) funded by a grant from the Welsh Government. We are grateful to Marc Alexa, Jinhui Yu, and Zhuwen Li for providing us their results for comparison, and to other researchers who have made various data publicly available. We also wish to thank Delcam and The Royal Mint for their support and useful discussions.

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N2 - Automatic bas-relief generation from 2D photographs potentially has applications to coinage, commemorative medals and souvenirs. However, current methods are not yet ready for real use in industry due to insufficient artistic effect, noticeable distortion, and unbalanced contrast. We previously proposed a shape-from-shading (SFS) based method to automatically generate bas-reliefs from single frontal photographs of human faces; however, suppression of unwanted details remained a problem. Here, we give experimental results showing how incorporating non-photorealistic rendering (NPR) into our previous framework enables us to both suppress unwanted detail, and yet also emphasize important features. We have consider an alternative approach to recovering relief shape, based on photometric stereo instead of SFS for surface orientation estimation. This can effectively reduce the computational time.

AB - Automatic bas-relief generation from 2D photographs potentially has applications to coinage, commemorative medals and souvenirs. However, current methods are not yet ready for real use in industry due to insufficient artistic effect, noticeable distortion, and unbalanced contrast. We previously proposed a shape-from-shading (SFS) based method to automatically generate bas-reliefs from single frontal photographs of human faces; however, suppression of unwanted details remained a problem. Here, we give experimental results showing how incorporating non-photorealistic rendering (NPR) into our previous framework enables us to both suppress unwanted detail, and yet also emphasize important features. We have consider an alternative approach to recovering relief shape, based on photometric stereo instead of SFS for surface orientation estimation. This can effectively reduce the computational time.

KW - Bas-relief

KW - Non-photorealistic rendering

KW - Photometric stereo

KW - Shape-from-shading

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Use of non-photorealistic rendering and photometric stereo in making bas-reliefs from photographs

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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