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Beyond Silhouettes: Surface Reconstruction Using Multi-Flash Photography

Daniel Crispell, Douglas Lanman, Peter G. Sibley, Yong Zhao, Gabriel Taubin
2006 Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06)  
By observing the visual motion of depth discontinuities, surface points are accurately reconstructed -including many located deep inside concavities.  ...  This paper introduces a novel method for surface reconstruction using the depth discontinuity information captured by a multi-flash camera while the object moves along a known trajectory.  ...  Conclusions and Future Work We have presented a novel method for surface reconstruction using depth discontinuity images generated by a multi- flash camera.  ... 
doi:10.1109/3dpvt.2006.37 dblp:conf/3dpvt/CrispellLSZT06 fatcat:6wceq3cvefgdll2ntre5prz5se

Multiresolution discontinuity-preserving surface reconstruction

N.F. Law, R. Chung
2001 Pattern Recognition  
This paper proposes a single multiresolution framework for both surface "tting and discontinuities identi"cation in the surface reconstruction problem.  ...  In particular, the Mallat}Zhong wavelet transform modulus maxima (WTMM) representation is employed for representing the surface which allows the discontinuity detection and surface "tting to be carried  ...  Introduction Surface reconstruction is a common problem encountered in computer vision, for instance in stereo imaging and visual motion analysis, when a dense depth map of the imaged scene is desired.  ... 
doi:10.1016/s0031-3203(00)00142-4 fatcat:bedeklpaubgcpjmgamkgljruea

Normal Map Bias Reduction for Many-Lights Multi-View Photometric Stereo

Jiangbin Gan, Philipp Bergen, Thorsten Thormählen, Philip Drescher, Ralf Hagens
2019 International Symposium on Vision, Modeling, and Visualization  
Firstly, we show how to detect continuous regions for normal integration, which leads to a fully automatic reconstruction pipeline.  ...  Thirdly, to further improve the normal accuracy, we compensate for interreflections of light between surface locations.  ...  [WT06] present an EM algorithm to enforce discontinuity-preserving integrability for surface reconstruction. Quéau et al.  ... 
doi:10.2312/vmv.20191314 dblp:conf/vmv/GanBTDH19 fatcat:4mnltbctxjg5hp4zlm4sbe3jg4

The computation of visible-surface representations

D. Terzopoulos
1988 IEEE Transactions on Pattern Analysis and Machine Intelligence  
The result is an emcient algorithm for visible-surface reconstruction.  ...  from multiple visual sources, 2) interpolating dense, piecewise smooth surfaces from these constraints, 3) detecting surface depth and orientation discontinuities to impose boundary conditions on interpolation  ...  Multiple surfaces are then reconstructed over the same region, one for each homogeneous constraint population. The line processes used in the discontinuity detection experiments are rather primitive.  ... 
doi:10.1109/34.3908 fatcat:5hhforb4zbbkvcfzabvch42anu

Echo-Reconstruction: Audio-Augmented 3D Scene Reconstruction [article]

Justin Wilson and Nicholas Rewkowski and Ming C. Lin and Henry Fuchs
2021 arXiv   pre-print
Reflected sound and images from the video are input into our audio (EchoCNN-A) and audio-visual (EchoCNN-AV) convolutional neural networks for surface and sound source detection, depth estimation, and  ...  These surfaces are often poorly reconstructed and filled with depth discontinuities and holes, making it difficult to cohesively reconstruct scenes that contain these planar discontinuities.  ...  All of which enhance scene and object reconstruction by detecting planar discontinuities from open or closed surfaces and then estimating depth and material.  ... 
arXiv:2110.02405v1 fatcat:ej7ey5c645cbren37hflg42v5q

Reconstruction of visual appearance

P. R. J. North
1990 Procedings of the British Machine Vision Conference 1990  
This paper presents a method for reconstructing the visual appearance of a scene from any viewpoint, given a collection of stereo pairs.  ...  ACKNOWLEDGEMENTS Firstly I would like to thank David Hogg for his help, and for comments on a draft of this paper.  ...  Thanks also to Harry Barrow, Alistair Bray, Christopher Longuet-Higgins and Kelvin Yuen for helpful discussions.  ... 
doi:10.5244/c.4.37 dblp:conf/bmvc/North90 fatcat:whrtrzyu3fakbm3wuomjg5cb3u

Shape from depth discontinuities under orthographic projection

Douglas Lanman, Daniel Cabrini Hauagge, Gabriel Taubin
2009 2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops  
We present a new method for reconstructing the 3-D surface of an opaque object from the motion of its depth discontinuities, when viewed under orthographic projection as the object undergoes rigid rotation  ...  A novel shape completion scheme is introduced to fill in gaps in the recovered surface, which would otherwise be impossible to reconstruct from the motion of the depth discontinuities alone.  ...  [7] show that such multi-flash cameras can be used to measure the visual motion of depth discontinuities as an object undergoes rigid rotation, allowing surface reconstruction using the differential  ... 
doi:10.1109/iccvw.2009.5457427 dblp:conf/iccvw/LanmanHT09 fatcat:w3uqlls77jcanliqh3e2gqq75i

Extended 3D Line Segments from RGB-D Data for Pose Estimation [chapter]

Anders Glent Buch, Jeppe Barsøe Jessen, Dirk Kraft, Thiusius Rajeeth Savarimuthu, Norbert Krüger
2013 Lecture Notes in Computer Science  
Edges are detected by combining cues from the RGB image and the aligned depth map. 3D line segments are then reconstructed by back-projecting 2D line segments and intersecting this with local surface patches  ...  We propose a method for the extraction of complete and rich symbolic line segments in 3D based on RGB-D data.  ...  The type parameter is assigned the value S for surface edges, O for orientation discontinuities and D for depth discontinuities.  ... 
doi:10.1007/978-3-642-38886-6_6 fatcat:3b5do4b23relneprtpbqg76bp4

Multi-flash 3D photography

Douglas Lanman, Peter G. Sibley, Daniel Crispell, Yong Zhao, Gabriel Taubin
2006 ACM SIGGRAPH 2006 Research posters on - SIGGRAPH '06  
Points which do not produce an observable depth discontinuity, however, cannot be reconstructed.  ...  We apply Sibley's method for fitting an implicit surface to fill the resulting sampling gaps [Crispell et al. 2006].  ...  Beyond silhouettes: Surface reconstruction using multi-flash photography. In Third International Symposium on 3D Data Processing, Visualization and Transmission. RASKAR, R., TAN, K.  ... 
doi:10.1145/1179622.1179736 dblp:conf/siggraph/LanmanSCZT06 fatcat:z6yczdxitnacvgemxfssbp22nm

Visual reconstruction for researchers

Richard Szeliski, Demetri Terzopoulos
1989 Image and Vision Computing  
Next, a selection of examples in image discontinuity detection, surface reconstruction and 308 curve description provides a perspective on the broad applicability of the algorithms developed later in the  ...  Furthermore, explicit surface reconstruction appears consistent with the psychophysics of surface perception, is necessary for surface shape analysis and is clearly useful for geometric modelling and other  ... 
doi:10.1016/0262-8856(89)90034-6 fatcat:uzfomtrzijdo5kamubkeppnbei

Shape from Depth Discontinuities [chapter]

Gabriel Taubin, Daniel Crispell, Douglas Lanman, Peter Sibley, Yong Zhao
2009 Lecture Notes in Computer Science  
Locally concave point laying at the bottom of concavities, which do not correspond to visible depth discontinuities, cannot be estimated, resulting in holes in the reconstructed surface.  ...  An image capture process detects points on a depth discontinuity sweep from a camera moving with respect to an object, or from a static camera and a moving object.  ...  For this example, we find the multi-flash approach has successfully reconstructed the fingers -regions that could not be reconstructed reliably using existing shape-from-silhouette or visual hull algorithms  ... 
doi:10.1007/978-3-642-00826-9_9 fatcat:vkvar6lwordbzgim366p2hdosm

A forward-inverse optics model of reciprocal connections between visual cortical areas

Mitsuo Kawato, Hideki Hayakawa, Toshio Inui
1993 Network  
We propose that the f&fonVard connection from the lower visual cortical area to the higher visual cortical area provides an approximated inverse model of the imaging process (optics), while the backprojection  ...  (C) Detected discontinuity locations. (D) Reconstructed intensity data wilh the estimated direction of the light ~ourze (arrow).  ...  The model in figure 3A is comprised of three modules, for surface orientation (middle: N module), discontinuity detection (left: L module). and light source direction (right: U module), which might schematically  ... 
doi:10.1088/0954-898x_4_4_001 fatcat:3azdxwtawjdttlck5yqq4352b4

Efficient hybrid search for visual reconstruction problems

Shang-Hong Lai, Baba C. Vemuri
1999 Image and Vision Computing  
Visual reconstruction refers to extracting stable descriptions from visual data ([1]; A. Blake and A. Zisserman, Visual Reconstruction, MIT Press, Cambridge, MA, 1987).  ...  Example problems include, image restoration, surface reconstruction, shape from shading etc.  ...  Fig. 1 . 1 The sparse data set used for the surface reconstruction with discontinuity detection; (a) original surface, and (b) sparsely sampled data set.  ... 
doi:10.1016/s0262-8856(98)00088-2 fatcat:5vk3ijcp7fcklonrfektllctny

The Analysis of Rock Surface Asperities

Dalibor Martisek, Jana Prochazkova
2018 MENDEL  
It is defined by the asperities and the computation is based on the visual comparison of discontinuity traces or discontinuity surfaces with standard two-dimensional graphs.  ...  The article also describes the method Surface from Focus that reconstruct the 3D surface from a set of partially focused images.  ...  Tomas Ficker from the Faculty of Civil Engineering Brno University of Technology for the provided data.  ... 
doi:10.13164/mendel.2018.1.135 fatcat:rpg3k5kgtvgmzayyxmpclhffjm

Multi-Sensor Surface Analysis for Robotic Ironing [article]

Yinxiao Li and Xiuhan Hu and Danfei Xu and Yonghao Yue and Eitan Grinspun and Peter Allen
2016 arXiv   pre-print
The curvature scan can estimate the height deviation of the cloth surface, while the discontinuity scan can effectively detect sharp surface features, such as wrinkles.  ...  We present a novel solution to analyze the cloth surface by fusing two surface scan techniques: a curvature scan and a discontinuity scan.  ...  Ying for many discussions. We'd also like to thank NVidia Corporation, and Intel Corporation for the hardware support.  ... 
arXiv:1602.04918v1 fatcat:ky5tfn2j3rb7th5xugxhrgp4je
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