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 Chenglei Wu

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Average citations per article9.33
Citation Count84
Publication count9
Publication years2009-2016
Available for download5
Average downloads per article500.00
Downloads (cumulative)2,500
Downloads (12 Months)669
Downloads (6 Weeks)64
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1 published by ACM
November 2016 ACM Transactions on Graphics (TOG): Volume 35 Issue 6, November 2016
Publisher: ACM
Citation Count: 4
Downloads (6 Weeks): 22,   Downloads (12 Months): 102,   Downloads (Overall): 321

Full text available: PDFPDF
In facial animation, the accurate shape and motion of the lips of virtual humans is of paramount importance, since subtle nuances in mouth expression strongly influence the interpretation of speech and the conveyed emotion. Unfortunately, passive photometric reconstruction of expressive lip motions, such as a kiss or rolling lips, is ...
Keywords: face modeling, facial performance capture, lip shape reconstruction, radial basis function networks

2 published by ACM
November 2016 ACM Transactions on Graphics (TOG): Volume 35 Issue 6, November 2016
Publisher: ACM
Citation Count: 4
Downloads (6 Weeks): 13,   Downloads (12 Months): 215,   Downloads (Overall): 567

Full text available: PDFPDF
In recent years, sophisticated image-based reconstruction methods for the human face have been developed. These methods capture highly detailed static and dynamic geometry of the whole face, or specific models of face regions, such as hair, eyes or eye lids. Unfortunately, image-based methods to capture the mouth cavity in general, ...
Keywords: face reconstruction, teeth capture, teeth modeling

3 published by ACM
July 2016 ACM Transactions on Graphics (TOG): Volume 35 Issue 4, July 2016
Publisher: ACM
Citation Count: 3
Downloads (6 Weeks): 15,   Downloads (12 Months): 179,   Downloads (Overall): 653

Full text available: PDFPDF
We present a new anatomically-constrained local face model and fitting approach for tracking 3D faces from 2D motion data in very high quality. In contrast to traditional global face models, often built from a large set of blendshapes, we propose a local deformation model composed of many small subspaces spatially ...
Keywords: anatomical constraints, facial performance capture, local face model, monocular face tracking

4 published by ACM
July 2015 ACM Transactions on Graphics (TOG): Volume 34 Issue 4, August 2015
Publisher: ACM
Citation Count: 5
Downloads (6 Weeks): 3,   Downloads (12 Months): 73,   Downloads (Overall): 462

Full text available: PDFPDF
We present a novel method to obtain fine-scale detail in 3D reconstructions generated with low-budget RGB-D cameras or other commodity scanning devices. As the depth data of these sensors is noisy, truncated signed distance fields are typically used to regularize out the noise, which unfortunately leads to over-smoothed results. In ...
Keywords: 3D reconstruction, shading-based refinement

5 published by ACM
November 2014 ACM Transactions on Graphics (TOG): Volume 33 Issue 6, November 2014
Publisher: ACM
Citation Count: 10
Downloads (6 Weeks): 11,   Downloads (12 Months): 100,   Downloads (Overall): 497

Full text available: PDFPDF
We present the first real-time method for refinement of depth data using shape-from-shading in general uncontrolled scenes. Per frame, our real-time algorithm takes raw noisy depth data and an aligned RGB image as input, and approximates the time-varying incident lighting, which is then used for geometry refinement. This leads to ...
Keywords: depth camera, real-time, shading-based refinement

November 2011 ICCV '11: Proceedings of the 2011 International Conference on Computer Vision
Publisher: IEEE Computer Society
Citation Count: 21

We present an approach to add true fine-scale spatio-temporal shape detail to dynamic scene geometry captured from multi-view video footage. Our approach exploits shading information to recover the millimeter-scale surface structure, but in contrast to related approaches succeeds under general unconstrained lighting conditions. Our method starts off from a set ...

August 2011 IEEE Transactions on Visualization and Computer Graphics: Volume 17 Issue 8, August 2011
Publisher: IEEE Educational Activities Department
Citation Count: 8

We propose a method to obtain a complete and accurate 3D model from multiview images captured under a variety of unknown illuminations. Based on recent results showing that for Lambertian objects, general illumination can be approximated well using low-order spherical harmonics, we develop a robust alternating approach to recover surface ...
Keywords: Multiview stereo, photometric stereo, Lambertian reflectance, \ell_{1} minimization.

June 2011 CVPR '11: Proceedings of the 2011 IEEE Conference on Computer Vision and Pattern Recognition
Publisher: IEEE Computer Society
Citation Count: 16

Multi-view stereo methods reconstruct 3D geometry from images well for sufficiently textured scenes, but often fail to recover high-frequency surface detail, particularly for smoothly shaded surfaces. On the other hand, shape-from-shading methods can recover fine detail from shading variations. Unfortunately, it is non-trivial to apply shape-from-shading alone to multi-view data, ...
Keywords: image recovery, multi-view stereo, illumination, images reconstruct

June 2009 ICME'09: Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Publisher: IEEE Press
Citation Count: 0

This paper addresses the problem of complete and detailed 3D model reconstruction of objects filmed by multiple cameras under varying illumination. Firstly, initial normal maps are obtained to enhance the correspondence mapping. Then, the depth for every pixel is estimated by combining photometric constraint with occlusion robust photo-consistency. Finally, after ...
Keywords: photometric constraint, point cloud, multi-view stereo

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