ACM Transactions on Graphics

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Schelling points on 3D surface meshes
ACM Transactions on Graphics - Tập 31 Số 4 - Trang 1-12 - 2012
Xiaobai Chen, Abulhair Saparov, Bill Pang, Thomas Funkhouser
This paper investigates "Schelling points" on 3D meshes, feature points selected by people in a pure coordination game due to their salience. To collect data for this investigation, we designed an online experiment that asked people to select points on 3D surfaces that they expect will be selected by other people. We then analyzed properties of the selected points, finding that: 1) Schelli...... hiện toàn bộ
MeshWalker
ACM Transactions on Graphics - Tập 39 Số 6 - Trang 1-13 - 2020
Alon Lahav, Ayellet Tal
Most attempts to represent 3D shapes for deep learning have focused on volumetric grids, multi-view images and point clouds. In this paper we look at the most popular representation of 3D shapes in computer graphics---a triangular mesh---and ask how it can be utilized within deep learning. The few attempts to answer this question propose to adapt convolutions & pooling to ...... hiện toàn bộ
Deep photo
ACM Transactions on Graphics - Tập 27 Số 5 - Trang 1-10 - 2008
Johannes Kopf, Boris Neubert, Billy Chen, Michael Cohen, Daniel Cohen‐Or, Oliver Deußen, Matt Uyttendaele, Dani Lischinski
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 align a photograph with such a model. Once the photograph and the model have been registered, an abundance of information, such as depth, t...... hiện toàn bộ
Photo tourism
ACM Transactions on Graphics - Tập 25 Số 3 - Trang 835-846 - 2006
Noah Snavely, Steven M. Seitz, Richard Szeliski
We present a system for interactively browsing and exploring large unstructured collections of photographs of a scene using a novel 3D interface. Our system consists of an image-based modeling front end that automatically computes the viewpoint of each photograph as well as a sparse 3D model of the scene and image to model correspondences. Our photo ex...... hiện toàn bộ
Online optical marker-based hand tracking with deep labels
ACM Transactions on Graphics - Tập 37 Số 4 - Trang 1-10 - 2018
Shangchen Han, Beibei Liu, Robert Wang, Yuting Ye, Christopher D. Twigg, Kenrick Kin
Optical marker-based motion capture is the dominant way for obtaining high-fidelity human body animation for special effects, movies, and video games. However, motion capture has seen limited application to the human hand due to the difficulty of automatically identifying (or labeling) identical markers on self-similar fingers. We propose a technique that frames the labeling problem as a k...... hiện toàn bộ
Dyna
ACM Transactions on Graphics - Tập 34 Số 4 - Trang 1-14 - 2015
Gerard Pons‐Moll, Javier Romero, Naureen Mahmood, Michael J. Black
To look human, digital full-body avatars need to have soft-tissue deformations like those of real people. We learn a model of soft-tissue deformations from examples using a high-resolution 4D capture system and a method that accurately registers a template mesh to sequences of 3D scans. Using over 40,000 scans of ten subjects, we learn how soft-tissue motion causes mesh triang...... hiện toàn bộ
An efficient surface intersection algorithm based on lower-dimensional formulation
ACM Transactions on Graphics - Tập 16 Số 1 - Trang 74-106 - 1997
Shankar Krishnan, Dinesh Manocha
We present an efficient algorithm to compute the intersection of algebraic and NURBS surfaces. Our approach is based on combining the marching methods with the algbraic formulation. In particular, we propose and matrix computations. We present algorithms to compute a start point on each component of the intersection curve (both open and closed components), detect the presence of singularit...... hiện toàn bộ
Seam carving for content-aware image resizing
ACM Transactions on Graphics - Tập 26 Số 3 - Trang 10 - 2007
Shai Avidan, Ariel Shamir
Effective resizing of images should not only use geometric constraints, but consider the image content as well. We present a simple image operator called seam carving that supports content-aware image resizing for both reduction and expansion. A seam is an optimal 8-connected path of pixels on a single...... hiện toàn bộ
O-CNN
ACM Transactions on Graphics - Tập 36 Số 4 - Trang 1-11 - 2017
Peng‐Shuai Wang, Yang Liu, Yuxiao Guo, Chunyu Sun, Xin Tong
We present O-CNN , an Octree-based Convolutional Neural Network (CNN) for 3D shape analysis. Built upon the octree representation of 3D shapes, our method takes the average normal vectors of a 3D model sampled in the finest leaf octants as input and performs 3D CNN operations on the octants occupied by the 3D shape surface. We...... hiện toàn bộ
"GrabCut"
ACM Transactions on Graphics - Tập 23 Số 3 - Trang 309-314 - 2004
Carsten Rother, Vladimir Kolmogorov, Andrew Blake
The problem of efficient, interactive foreground/background segmentation in still images is of great practical importance in image editing. Classical image segmentation tools use either texture (colour) information, e.g. Magic Wand, or edge (contrast) information, e.g. Intelligent Scissors. Recently, an approach based on optimization by graph-cut has been developed which successfully combi...... hiện toàn bộ
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