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Displaying 1-50 out of 131 total
Parametric reshaping of human bodies in images
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Hongbo Fu, Ligang Liu, Shizhe Zhou, Xiaoguang Han, Daniel Cohen-Or, Hongbo Fu, Ligang Liu, Shizhe Zhou, Xiaoguang Han, Daniel Cohen-Or, Hongbo Fu, Ligang Liu, Shizhe Zhou, Xiaoguang Han, Daniel Cohen-Or, Hongbo Fu, Ligang Liu, Shizhe Zhou, Xiaoguang Han
Issue Date:July 2010
pp. 1-10
We present an easy-to-use image retouching technique for realistic reshaping of human bodies in a single image. A model-based approach is taken by integrating a 3D whole-body morphable model into the reshaping process to achieve globally consistent editing...
     
Non-local scan consolidation for 3D urban scenes
Found in: ACM Transactions on Graphics (TOG)
By Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Guowei Wan, Niloy J. Mitra, Qian Zheng, Yangyan Li, Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Guowei Wan, Niloy J. Mitra, Qian Zheng, Yangyan Li, Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Guowei Wan, Niloy J. Mitra, Qian Zheng, Yangyan Li, Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Guowei Wan, Niloy J. Mitra, Qian Zheng, Yangyan Li
Issue Date:July 2010
pp. 1-10
Recent advances in scanning technologies, in particular devices that extract depth through active sensing, allow fast scanning of urban scenes. Such rapid acquisition incurs imperfections: large regions remain missing, significant variation in sampling den...
     
SmartBoxes for interactive urban reconstruction
Found in: ACM Transactions on Graphics (TOG)
By Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Hao Zhang, Liangliang Nan, Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Hao Zhang, Liangliang Nan, Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Hao Zhang, Liangliang Nan, Andrei Sharf, Baoquan Chen, Daniel Cohen-Or, Hao Zhang, Liangliang Nan
Issue Date:July 2010
pp. 1-10
We introduce an interactive tool which enables a user to quickly assemble an architectural model directly over a 3D point cloud acquired from large-scale scanning of an urban scene. The user loosely defines and manipulates simple building blocks, which we ...
     
Camouflage images
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Hung-Kuo Chu, Niloy J. Mitra, Tien-Tsin Wong, Tong-Yee Lee, Wei-Hsin Hsu, Daniel Cohen-Or, Hung-Kuo Chu, Niloy J. Mitra, Tien-Tsin Wong, Tong-Yee Lee, Wei-Hsin Hsu, Daniel Cohen-Or, Hung-Kuo Chu, Niloy J. Mitra, Tien-Tsin Wong, Tong-Yee Lee, Wei-Hsin Hsu, Daniel Cohen-Or, Hung-Kuo Chu, Niloy J. Mitra, Tien-Tsin Wong, Tong-Yee Lee, Wei-Hsin Hsu
Issue Date:July 2010
pp. 1-10
Camouflage images contain one or more hidden figures that remain imperceptible or unnoticed for a while. In one possible explanation, the ability to delay the perception of the hidden figures is attributed to the theory that human perception works in two m...
     
K-set tilable surfaces
Found in: ACM Transactions on Graphics (TOG)
By Chi-Fu Lai, Chi-Wing Fu, Daniel Cohen-Or, Ying He, Chi-Fu Lai, Chi-Wing Fu, Daniel Cohen-Or, Ying He, Chi-Fu Lai, Chi-Wing Fu, Daniel Cohen-Or, Ying He, Chi-Fu Lai, Chi-Wing Fu, Daniel Cohen-Or, Ying He
Issue Date:July 2010
pp. 1-10
This paper introduces a method for optimizing the tiles of a quad-mesh. Given a quad-based surface, the goal is to generate a set of K quads whose instances can produce a tiled surface that approximates the input surface. A solution to the problem is a K-s...
     
Curve skeleton extraction from incomplete point cloud
Found in: ACM Transactions on Graphics (TOG)
By Andrea Tagliasacchi, Daniel Cohen-Or, Hao Zhang, Andrea Tagliasacchi, Daniel Cohen-Or, Hao Zhang, Andrea Tagliasacchi, Daniel Cohen-Or, Hao Zhang, Andrea Tagliasacchi, Daniel Cohen-Or, Hao Zhang
Issue Date:July 2009
pp. 1-2
We present an algorithm for curve skeleton extraction from imperfect point clouds where large portions of the data may be missing. Our construction is primarily based on a novel notion of generalized rotational symmetry axis (ROSA) of an oriented point set...
     
Coordinates for instant image cloning
Found in: ACM Transactions on Graphics (TOG)
By Dani Lischinski, Daniel Cohen-Or, Gil Hoffer, Yaron Lipman, Zeev Farbman, Dani Lischinski, Daniel Cohen-Or, Gil Hoffer, Yaron Lipman, Zeev Farbman, Dani Lischinski, Daniel Cohen-Or, Gil Hoffer, Yaron Lipman, Zeev Farbman, Dani Lischinski, Daniel Cohen-Or, Gil Hoffer, Yaron Lipman, Zeev Farbman
Issue Date:July 2009
pp. 1-2
Seamless cloning of a source image patch into a target image is an important and useful image editing operation, which has received considerable research attention in recent years. This operation is typically carried out by solving a Poisson equation with ...
     
iWIRES: an analyze-and-edit approach to shape manipulation
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Niloy J. Mitra, Olga Sorkine, Ran Gal, Daniel Cohen-Or, Niloy J. Mitra, Olga Sorkine, Ran Gal, Daniel Cohen-Or, Niloy J. Mitra, Olga Sorkine, Ran Gal, Daniel Cohen-Or, Niloy J. Mitra, Olga Sorkine, Ran Gal
Issue Date:July 2009
pp. 1-2
Man-made objects are largely dominated by a few typical features that carry special characteristics and engineered meanings. State-of-the-art deformation tools fall short at preserving such characteristic features and global structure. We introduce iWIRES,...
     
Inspiring modeling
Found in: 2013 International Conference on Cyberworlds (CW)
By Daniel Cohen-Or
Issue Date:October 2013
pp. 1
Summary form only given. An interesting question is whether a machine can assist humans in being creative and inspire a user during the creation of 3D models or a shape in general. One possible means to achieve this is through a design gallery which presen...
 
Compression of Indoor Video Sequences Using Homography-Based Segmentation
Found in: Computer Graphics and Applications, Pacific Conference on
By Tae-Joon Park, Shachar Fleishman, Daniel Cohen-Or, Dani Lischinski
Issue Date:October 2000
pp. 290
We present a new compression algorithm for video sequences of indoor scenes, or more generally, sequences containing mostly planar and near-planar surfaces. Our approach utilizes edge and optical flow information in order to segment selected keyframes into...
 
Mosaicing Ultrasonic Volumes for Visual Simulation
Found in: IEEE Computer Graphics and Applications
By Dror Aiger, Daniel Cohen-Or
Issue Date:March 2000
pp. 53-61
This article describes a method for mosaicing volumes acquired from a 3D ultrasound device. The method is based on an image-based registration technique that transforms one volume to align with the other. The transformation is composed of a coarse rigid tr...
 
Automatic Camera Placement for Image-Based Modeling
Found in: Computer Graphics and Applications, Pacific Conference on
By Shachar Fleishman, Daniel Cohen-Or, Dani Lischinski
Issue Date:October 1999
pp. 12
We present an automatic camera placement method for generating image-based models from scenes with known geometry. Our method first approximately determines the set of surfaces visible from a given viewing area and then selects a small set of appropriate c...
 
3D Line Voxelization and Connectivity Control
Found in: IEEE Computer Graphics and Applications
By Daniel Cohen-Or, Arie Kaufman
Issue Date:November 1997
pp. 80-87
A line voxelization algorithm generates from a 3D continuous line a 3D discrete line, which is a set of connected voxels approximating the continuous line. The connectivity of this set is a predefined attribute that specifies the way consecutive voxels are...
 
Temporal Continuity of Levels of Detail in Delaunay Triangulated Terrain
Found in: Visualization Conference, IEEE
By Daniel Cohen-Or, Yishay Levanoni
Issue Date:November 1996
pp. 37
The representation of a scene at different levels of detail is necessary to achieve real-time rendering. In aerial views only part of the scene that is close to the viewing point needs to be displayed with a high level of detail, while more distant parts c...
 
Contour Blending Using Warp-Guided Distance Field Interpolation
Found in: Visualization Conference, IEEE
By Daniel Cohen-Or, David Levin, Amira Solomovici
Issue Date:November 1996
pp. 165
Given (n - 1)-dimensional parallel cross-sections of an n-dimensional body, one would like to reconstruct the n-dimensional body. The method based on Distance Field Interpolation (DFI) gives a robust solution to this problem in its ability to deal with any...
 
A Real-Time Photo-Realistic Visual Flythrough
Found in: IEEE Transactions on Visualization and Computer Graphics
By Daniel Cohen-Or, Eran Rich, Uri Lerner, Victor Shenkar
Issue Date:September 1996
pp. 255-265
<p><b>Abstract</b>—In this paper we present a comprehensive flythrough system which generates photo-realistic images in true real-time. The high performance is due to an innovative rendering algorithm based on a discrete ray casting appro...
 
A 3D Skewing and De-skewing Scheme for Conflict-Free Access to Rays in Volume Rendering
Found in: IEEE Transactions on Computers
By Arie Kaufman, Daniel Cohen-Or
Issue Date:May 1995
pp. 707-710
<p><it>Abstract</it>—We extend a 2D linear skewed memory organization to 3D and introduce the associated de-skewing scheme designed to provide conflict-free access to projection rays of voxels for use in a volume rendering architecture. T...
 
Style-content separation by anisotropic part scales
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Hao Zhang, Honghua Li, Kai Xu, Yueshan Xiong, Zhi-Quan Cheng, Daniel Cohen-Or, Hao Zhang, Honghua Li, Kai Xu, Yueshan Xiong, Zhi-Quan Cheng
Issue Date:December 2010
pp. 1-12
We perform co-analysis of a set of man-made 3D objects to allow the creation of novel instances derived from the set. We analyze the objects at the part level and treat the anisotropic part scales as a shape style. The co-analysis then allows style transfe...
     
Cone carving for surface reconstruction
Found in: ACM Transactions on Graphics (TOG)
By Ariel Shamir, Daniel Cohen-Or, Hao Zhang, Shy Shalom, Ariel Shamir, Daniel Cohen-Or, Hao Zhang, Shy Shalom
Issue Date:December 2010
pp. 1-12
We present cone carving, a novel space carving technique supporting topologically correct surface reconstruction from an incomplete scanned point cloud. The technique utilizes the point samples not only for local surface position estimation but also to obt...
     
Consolidation of unorganized point clouds for surface reconstruction
Found in: ACM Transactions on Graphics (TOG)
By Dan Li, Daniel Cohen-Or, Hao Zhang, Hui Huang, Uri Ascher, Dan Li, Daniel Cohen-Or, Hao Zhang, Hui Huang, Uri Ascher
Issue Date:December 2009
pp. 1-2
We consolidate an unorganized point cloud with noise, outliers, non-uniformities, and in particular interference between close-by surface sheets as a preprocess to surface generation, focusing on reliable normal estimation. Our algorithm includes two new d...
     
Emerging images
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Hezy Yeshurun, Hung-Kuo Chu, Lior Wolf, Niloy J. Mitra, Tong-Yee Lee, Daniel Cohen-Or, Hezy Yeshurun, Hung-Kuo Chu, Lior Wolf, Niloy J. Mitra, Tong-Yee Lee
Issue Date:December 2009
pp. 1-2
Emergence refers to the unique human ability to aggregate information from seemingly meaningless pieces, and to perceive a whole that is meaningful. This special skill of humans can constitute an effective scheme to tell humans and machines apart. This pap...
     
Feature-aligned shape texturing
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Hao Zhang, Kai Xu, Ligang Liu, Shizhe Zhou, Tao Ju, Yueshan Xiong, Daniel Cohen-Or, Hao Zhang, Kai Xu, Ligang Liu, Shizhe Zhou, Tao Ju, Yueshan Xiong
Issue Date:December 2009
pp. 1-2
The essence of a 3D shape can often be well captured by its salient feature curves. In this paper, we explore the use of salient curves in synthesizing intuitive, shape-revealing textures on surfaces. Our texture synthesis is guided by two principles: matc...
     
Layered shape synthesis: automatic generation of control maps for non-stationary textures
Found in: ACM Transactions on Graphics (TOG)
By Amir Rosenberger, Dani Lischinski, Daniel Cohen-Or, Amir Rosenberger, Dani Lischinski, Daniel Cohen-Or
Issue Date:December 2009
pp. 1-2
Many inhomogeneous real-world textures are non-stationary and exhibit various large scale patterns that are easily perceived by a human observer. Such textures violate the assumptions underlying most state-of-the-art example-based synthesis methods. Conseq...
     
Boundary snapping for robust image cutouts
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Eyal Zadicario, Shai Avidan, Alon Shmueli, Daniel Cohen-Or
Issue Date:June 2008
pp. 1-8
Boundary Snapping is an interactive image cutout algorithm that requires a small number of user supplied control points, or landmarks, to infer the cutout contour. The key idea is to match the appearance of all points along the desired contour to the landm...
 
Non-homogeneous Content-driven Video-retargeting
Found in: Computer Vision, IEEE International Conference on
By Lior Wolf, Moshe Guttmann, Daniel Cohen-Or
Issue Date:October 2007
pp. 1-6
Video retargeting is the process of transforming an existing video to fit the dimensions of an arbitrary display. A compelling retargeting aims at preserving the viewers' experience by maintaining the information content of important regions in the frame, ...
 
Geometry-Aware Bases for Shape Approximation
Found in: IEEE Transactions on Visualization and Computer Graphics
By Olga Sorkine, Daniel Cohen-Or, Dror Irony, Sivan Toledo
Issue Date:March 2005
pp. 171-180
We introduce a new class of shape approximation techniques for irregular triangular meshes. Our method approximates the geometry of the mesh using a linear combination of a small number of basis vectors. The basis vectors are functions of the mesh connecti...
 
Intelligent Mesh Scissoring Using 3D Snakes
Found in: Computer Graphics and Applications, Pacific Conference on
By Yunjin Lee, Seungyong Lee, Ariel Shamir, Daniel Cohen-Or, Hans-Peter Seidel
Issue Date:October 2004
pp. 279-287
Mesh partitioning and parts extraction have become key ingredients for many mesh manipulation applications both manual and automatic. In this paper, we present an intelligent scissoring operator for meshes which supports both automatic segmentation and man...
 
Least-Squares Meshes
Found in: Shape Modeling and Applications, International Conference on
By Olga Sorkine, Daniel Cohen-Or
Issue Date:June 2004
pp. 191-199
In this paper we introduce Least-squares Meshes: meshes with a prescribed connectivity that approximate a set of control points in a least-squares sense. The given mesh consists of a planar graph with arbitrary connectivity and a sparse set of control poin...
 
Differential Coordinates for Interactive Mesh Editing
Found in: Shape Modeling and Applications, International Conference on
By Yaron Lipman, Olga Sorkine, Daniel Cohen-Or, David Levin, Christian Rössl, Hans-Peter Seidel
Issue Date:June 2004
pp. 181-190
One of the main challenges in editing a mesh is to retain the visual appearance of the surface after applying various modifications. In this paper we advocate the use of linear differential coordinates as means to preserve the high-frequency detail of the ...
 
Tricubic Interpolation of Discrete Surfaces for Binary Volumes
Found in: IEEE Transactions on Visualization and Computer Graphics
By Arie Kadosh, Daniel Cohen-Or, Roni Yagel
Issue Date:October 2003
pp. 580-586
<p><b>Abstract</b>—Binary-defined 3D objects are common in volume graphics and medical imaging as a result of voxelization algorithms, segmentation methods, and binary operations such as clipping. Traditionally, renderings of binary objec...
 
Breaking the Walls: Scene Partitioning and Portal Creation
Found in: Computer Graphics and Applications, Pacific Conference on
By Alon Lerner, Yiorgos Chrysanthou, Daniel Cohen-Or
Issue Date:October 2003
pp. 303
In this paper we revisit the cells-and-portals visibility methods, originally developed for the special case of architectural interiors. We define an effectiveness measure for a cells-and-portals partition, and introduce a two-pass algorithm that computes ...
 
A Survey of Visibility for Walkthrough Applications
Found in: IEEE Transactions on Visualization and Computer Graphics
By Daniel Cohen-Or, Yiorgos L. Chrysanthou, Cláudio T. Silva, Frédo Durand
Issue Date:July 2003
pp. 412-431
<p><b>Abstract</b>—Visibility algorithms for walkthrough and related applications have grown into a significant area, spurred by the growth in the complexity of models and the need for highly interactive ways of navigating them. In this s...
 
Example-Based Style Synthesis
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Iddo Drori, Daniel Cohen-Or, Hezy Yeshurun
Issue Date:June 2003
pp. 143
We introduce an example-based synthesis technique that extrapolates novel styles for a given input image. The technique is based on separating the style and content of image fragments. Given an image with a new style and content, it is first adaptively par...
 
Computing and Rendering Point Set Surfaces
Found in: IEEE Transactions on Visualization and Computer Graphics
By Marc Alexa, Johannes Behr, Daniel Cohen-Or, Shachar Fleishman, David Levin, Claudio T. Silva
Issue Date:January 2003
pp. 3-15
<p><b>Abstract</b>—We advocate the use of point sets to represent shapes. We provide a definition of a smooth manifold surface from a set of points close to the original surface. The definition is based on local maps from differential geo...
 
Bounded-distortion Piecewise Mesh Parameterization
Found in: Visualization Conference, IEEE
By Olga Sorkine, Daniel Cohen-Or, Rony Goldenthal, Dani Lischinski
Issue Date:November 2002
pp. N/A
<div>Many computer graphics operations, such as texture mapping, 3D painting, remeshing, mesh compression, and digital geometry processing, require finding a low-distortion parameterization for irregular connectivity triangulations of arbitrary genus...
 
Point Set Surfaces
Found in: Visualization Conference, IEEE
By Marc Alexa, Johannes Behr, Daniel Cohen-Or, Shachar Fleishman, David Levin, Claudio T. Silva
Issue Date:October 2001
pp. N/A
We advocate the use of point sets to represent shapes. We provide a definition of a smooth manifold surface from a set of points close to the original surface. The definition is based on local maps from differential geometry, which are approximated by the ...
 
Progressive Compression of Arbitrary Triangular Meshes
Found in: Visualization Conference, IEEE
By Daniel Cohen-Or, David Levin, Offir Remez
Issue Date:October 1999
pp. 11
In this paper we present a mesh compression method based on a multiresolution decomposition whose detail coefficients have a compact representation and thus smaller entropy than the original mesh. Given an arbitrary triangular mesh with an irregular connec...
 
Volume Graphics
Found in: Computer
By Arie Kaufman, Daniel Cohen, Roni Yagel
Issue Date:July 1993
pp. 51-64
<p>Volume graphics, which employs a volume buffer of voxels for 3D scene representation, is discussed. Volume graphics offers advantages over surface graphics: it is viewpoint independent, insensitive to scene and object complexity, and suitable for ...
 
Discrete Ray Tracing
Found in: IEEE Computer Graphics and Applications
By Roni Yagel, Daniel Cohen, Arie Kaufman
Issue Date:September 1992
pp. 19-28
<p>Discrete ray tracing, or 3-D raster ray tracing (RRT), which, unlike existing ray tracing methods that use geometric representation for the 3-D scene employs a 3-D discrete raster of voxels for representing the 3-D scene in the same way a 2-D rast...
 
Deep photo: model-based photograph enhancement and viewing
Found in: ACM Transactions on Graphics (TOG)
By Billy Chen, Boris Neubert, Dani Lischinski, Daniel Cohen-Or, Johannes Kopf, Matt Uyttendaele, Michael Cohen, Oliver Deussen
Issue Date:December 2008
pp. 1-49
In this paper, we introduce a novel system for browsing, enhancing, and manipulating casual outdoor photographs by combining them with already existing georeferenced digital terrain and urban models. A simple interactive registration process is used to ali...
     
Analyzing growing plants from 4D point cloud data
Found in: ACM Transactions on Graphics (TOG)
By Baoquan Chen, Daniel Cohen-Or, Daniel Chamovitz, Niloy J. Mitra, Xiaochen Fan, Yangyan Li
Issue Date:November 2013
pp. 1-10
Studying growth and development of plants is of central importance in botany. Current quantitative are either limited to tedious and sparse manual measurements, or coarse image-based 2D measurements. Availability of cheap and portable 3D acquisition device...
     
Constraints as Features
Found in: 2013 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Shmuel Asafi,Daniel Cohen-Or
Issue Date:June 2013
pp. 1634-1641
In this paper, we introduce a new approach to constrained clustering which treats the constraints as features. Our method augments the original feature space with additional dimensions, each of which derived from a given Cannot-link constraints. The specif...
 
2D-3D fusion for layer decomposition of urban facades
Found in: Computer Vision, IEEE International Conference on
By Yangyan Li,Qian Zheng,Andrei Sharf,Daniel Cohen-Or,Baoquan Chen,Niloy J. Mitra
Issue Date:November 2011
pp. 882-889
We present a method for fusing two acquisition modes, 2D photographs and 3D LiDAR scans, for depth-layer decomposition of urban facades. The two modes have complementary characteristics: point cloud scans are coherent and inherently 3D, but are often spars...
 
The increasing role of computer theory in undergraduate curricula
Found in: Proceedings of the nineteenth SIGCSE technical symposium on Computer science education (SIGCSE '88)
By Daniel D. McCracken, Daniel I. A. Cohen, Derick Wood, Donald J. Bagert, Donald K. Friesen, Gary Ford
Issue Date:February 1988
pp. 313-317
CSAB states in its guidelines that one of its six undergraduate core curriculum subject areas is computer theory. It appears that the ACM Core Curriculum Committee will also suggest a core course in this area. However, courses in computer theory, under the...
     
Structure-aware shape processing
Found in: SIGGRAPH Asia 2013 Courses (SA '13)
By Daniel Cohen-Or, Hao (Richard) Zhang, Qi-Xing Huang, Michael Wand, Niloy Mitra, Vladimir Kim
Issue Date:November 2013
pp. 1-20
Shape structure is about the arrangement and relations between shape parts. Structure-aware shape processing goes beyond local geometry and low level processing, and analyzes and processes shapes at a high level. It focuses more on the global inter and int...
     
Projective analysis for 3D shape segmentation
Found in: ACM Transactions on Graphics (TOG)
By Daniel Cohen-Or, Hao Zhang, Minglun Gong, Tianhua Wang, Baoquan Chen, Yunhai Wang
Issue Date:November 2013
pp. 1-12
We introduce projective analysis for semantic segmentation and labeling of 3D shapes. The analysis treats an input 3D shape as a collection of 2D projections, labels each projection by transferring knowledge from existing labeled images, and back-projects ...
     
3-Sweep: extracting editable objects from a single photo
Found in: ACM Transactions on Graphics (TOG)
By Ariel Shamir, Shi-Min Hu, Daniel Cohen-Or, Tao Chen, Zhe Zhu
Issue Date:November 2013
pp. 1-10
We introduce an interactive technique for manipulating simple 3D shapes based on extracting them from a single photograph. Such extraction requires understanding of the components of the shape, their projections, and relations. These simple cognitive tasks...
     
"Mind the gap": tele-registration for structure-driven image completion
Found in: ACM Transactions on Graphics (TOG)
By Baoquan Chen, Dani Lischinski, Hui Huang, Minglun Gong, Daniel Cohen-Or, Kangxue Yin, Uri Ascher
Issue Date:November 2013
pp. 1-10
Concocting a plausible composition from several non-overlapping image pieces, whose relative positions are not fixed in advance and without having the benefit of priors, can be a daunting task. Here we propose such a method, starting with a set of sloppily...
     
Qualitative organization of collections of shapes via quartet analysis
Found in: ACM Transactions on Graphics (TOG)
By Alla Sheffer, Ariel Shamir, Chao-Hui Shen, Daniel Cohen-Or, Hao Zhang, Shi-Min Hu, Shi-Sheng Huang
Issue Date:July 2013
pp. 1-10
We present a method for organizing a heterogeneous collection of 3D shapes for overview and exploration. Instead of relying on quantitative distances, which may become unreliable between dissimilar shapes, we introduce a qualitative analysis which utilizes...
     
Co-hierarchical analysis of shape structures
Found in: ACM Transactions on Graphics (TOG)
By Ariel Shamir, Daniel Cohen-Or, Hao Zhang, Kai Xu, Oliver van Kaick, Shuyang Sun, Yanzhen Wang
Issue Date:July 2013
pp. 1-10
We introduce an unsupervised co-hierarchical analysis of a set of shapes, aimed at discovering their hierarchical part structures and revealing relations between geometrically dissimilar yet functionally equivalent shape parts across the set. The core prob...
     
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