Connectivity Transformation for Mesh Metamorphosis Abstract (2008)
R. Scopigno, D. Zorin, Minsu Ahn, Seungyong Lee, Hans-peter Seidel
In previous mesh morphing techniques, the vertex set and connectivity of an in-between mesh are fixed and only the vertex positions are interpolated between input meshes. With this restriction, to...
Multiresolution random accessible mesh compression (2008)
Junho Kim, Sungyul Choe, Seungyong Lee
This paper presents a novel approach for mesh compression, which we call multiresolution random accessible mesh compression. In contrast to previous mesh compression techniques, the approach enables...
(Guest Editors) Abstract Optical Flow Rendering (2008)
Eurographics N. Ferreira, M. Göbel, Tae-joon Park, Seungyong Lee, Sung Yong Shin
This paper proposes a new approach to image-based rendering that generates an image viewed from an arbitrary camera position and orientation by rendering optical flows extracted from reference...
Abstract Overfitting Control for Surface Reconstruction (2008)
Konrad Polthier, Alla Sheffer (editors, Yunjin Lee, Seungyong Lee, Ioannis Ivrissimtzis, Hans-peter Seidel
This paper proposes a general framework for overfitting control in surface reconstruction from noisy point data. The problem we deal with is how to create a model that will capture as much detail as...
Received (Day Month Year) Revised (Day Month Year) Accepted (Day Month Year) (2008)
Junho Kim, Seungyong Lee, Leif Kobbelt, Communicated (xxxxxxxxxx
This paper presents a novel framework for view-dependent streaming of multiresolution meshes. In contrast to conventional progressive streaming in which the resolution of a model changes globally,...
Feature Sensitive Out-of-Core Chartification of Large Polygonal Meshes (2008)
Sungyul Choe, Minsu Ahn, Seungyong Lee
Abstract. Mesh chartification is an important tool for processing meshes in various applications. In this paper, we present a novel feature sensitive mesh chartification technique that can handle...
Conformal surface parameterization using euclidean ricci flow (2008)
Miao Jin, Juhno Kim, Feng Luo, Seungyong Lee, Xianfeng Gu
Surface parameterization is a fundamental problem in graphics. Conformal surface parameterization is equivalent to finding a Riemannian metric on the surface, such that the metric is conformal to the...
Lifeng Wang, Stephen Lin, Seungyong Lee, Baining Guo, Heung-yeung Shum, Senior Member
Abstract — We present a 2D feature-based technique for morphing 3D objects represented by light fields. Existing light field morphing methods require the user to specify corresponding 3D feature...
Kyuman Jeong POSTECH Detail Control in Line Drawings of 3D Meshes (2008)
Alex Ni, Seungyong Lee, Lee Markosian
and suggestive contours at fine scales appear as many small specks. Middle: the same model rendered with controlled level of detail (approximately 70,000 polygons). Right: additional detail is...
Feature Article Polymorph: Morphing Among Multiple Images (2008)
Image metamorphosis has proven to be a powerful visual effects tool. Many breathtaking examples now appear in film and television, depicting the fluid transformation of one digital image into...
Lee, Seungyong, Park, Jaebok, Kim, Myunghee, Joo, Sujong
In this paper, we propose the MDBMS(Multi-DataBase Management System) which integrates the LDBMSs(Local DataBase Systems) with heterogeneous environment into distributed system and provides global...
Polymorph: An Algorithm For Morphing Among Multiple Images (2007)
This paper presents polymorph, a novel algorithm for morphing among multiple images. Traditional image morphing generates a sequence of images depicting an evolution from one image into another. We...
Motion Evaluation for VR-based Motion Training (2007)
Eurographics A. Chalmers, Seongmin Baek, Seungyong Lee, Gerard Jounghyun Kim
Virtual Reality (VR) has emerged as one of the important and effective tools for education and training. Most VRbased training systems are situation-based, where the trainees are trained for discrete...
Gyuhwan Oh, Seungyong Lee, Sung Yong Shin
determination of textural periodicity using distance matching function
Henry Kang, Seungyong Lee, Charles K. Chui
This paper presents a non-photorealistic rendering technique that automatically generates a line drawing from a photograph. We aim at extracting a set of coherent, smooth, and stylistic lines that...
Line drawings via abstracted shading (2007)
Yunjin Lee, Lee Markosian, Seungyong Lee, John F. Hughes
Copyright Notice
Line drawings via abstracted shading (2007)
Yunjin Lee, Lee Markosian, Seungyong Lee, John F. Hughes
emphasizing thin tone regions and tone boundaries. (d) Lines respond to new lighting, or (e) to new lighting and viewpoint. We describe a GPU-based algorithm for rendering a 3D model as a line...
Surface and Normal Ensembles for Surface Reconstruction (2007)
Yoon, Mincheol, Lee, Yunjin, Lee, Seungyong, Ivrissimtzis, Ioannis, Seidel, Hans-Peter
Sungyul Choe, Advisor Seungyong Lee, Advisor Seungyong Lee, Mar Current, Junho Kim, Sungyul Choe, ...
Multiresolution mesh representation Mesh analysis and synthesis Mesh processing and manipulation Digital geometry processing Mesh compression Mesh compression for large scaled meshes Mesh compression...
Ensembles for Surface Reconstruction (2006)
Lee, Yunjin, Yoon, Mincheol, Lee, Seungyong, Ivrissimtzis, Ioannis, Seidel, Hans-Peter, Gotsman, Craig, ...
Ensembles for Normal and Surface Reconstructions (2006)
Lee, Yunjin, Yoon, Mincheol, Lee, Seungyong, Ivrissimtzis, Ioannis, Seidel, Hans-Peter, Kim, Myung-Soo, ...
The majority of the existing techniques for surface reconstruction and the closely related problem of normal estimation are deterministic. Their main advantages are the speed and, given a reasonably...
Overfitting Control for Surface Reconstruction (2006)
Lee, Yunjin, Lee, Seungyong, Ivrissimtzis, Ioannis, Seidel, Hans-Peter, Fellner, Dieter W., Spencer, Stephen N., ...
This paper proposes a general framework for overfitting control in surface reconstruction from noisy point data. The problem we deal with is how to create a model that will capture as much detail as...
Ensembles for Normal and Surface Reconstructions (2006)
Yoon, Mincheol, Lee, Yunjin, Lee, Seungyong, Ivrissimtzis, Ioannis, Seidel, Hans-Peter, Kim, Myung-Soo, ...
The majority of the existing techniques for surface reconstruction and the closely related problem of normal estimation are deterministic. Their main advantages are the speed and, given a reasonably...
Detail control in line drawings of 3D meshes (2005)
Jeong, Kyuman, Ni, Alex, Lee, Seungyong, Markosian, Lee
We address the problem of rendering a 3D mesh in the style of a line drawing, in which little or no shading is used and instead shape cues are provided by silhouettes and suggestive contours. Our...
Feature sensitive mesh segmentation with mean shift (2005)
Hitoshi Yamauchi, Seungyong Lee, Yunjin Lee, Yutaka Ohtake
Feature sensitive mesh segmentation is important for many computer graphics and geometric modeling applications. In this paper, we develop a mesh segmentation method which is capable of producing...
Feature Sensitive Mesh Segmentation with Mean Shift (2005)
Hitoshi Yamauchi Seungyong, Hitoshi Yamauchi, Seungyong Lee, Yunjin Lee, Yutaka Ohtake
Feature sensitive mesh segmentation is important for many computer graphics and geometric modeling applications. In this paper, we develop a mesh segmentation method which is capable of producing...
Feature Sensitive Mesh Segmentation with Mean Shift (2005)
Yamauchi, Hitoshi, Lee, Seungyong, Lee, Yunjin, Ohtake, Yutaka, Belyaev, Alexander, Seidel, Hans-Peter, ...
Feature sensitive mesh segmentation is important for many computer graphics and geometric modeling applications. In this paper, we develop a mesh segmentation method which is capable of producing...
Mesh Scissoring with Minima Rule and Part Salience (2005)
Lee, Yunjin, Lee, Seungyong, Shamir, Ariel, Cohen-Or, Daniel, Seidel, Hans-Peter, Kobbelt, Leif
Surface Reconstruction with Neural Meshes (2005)
Ivrissimtzis, Ioannis, Jeong, Won-Ki, Lee, Seungyong, Lee, Yunjin, Seidel, Hans-Peter
Neural meshes : surface reconstruction with a learning algorithm (2004)
Ivrissimtzis,Ioannis, Jeong,Won-Ki, Lee,Seungyong, Lee,Yunjin, Seidel,Hans-Peter
Intelligent Mesh Scissoring Using 3D Snakes (2004)
Lee,Yunjin, Lee,Seungyong, Shamir,Ariel, Cohen-Or,Daniel, Seidel,Hans-Peter
Intelligent Mesh Scissoring Using 3D Snakes (2004)
Lee, Yunjin, Lee, Seungyong, Shamir, Ariel, Cohen-Or, Daniel, Seidel, Hans-Peter, Cohen-Or, Daniel, ...
Ivrissimtzis, Ioannis, Lee, Yunjin, Lee, Seungyong, Jeong, Won-Ki, Seidel, Hans-Peter, Aloimonos, Yiannis, ...
Connectivity transformation for mesh metamorphosis (2004)
Ahn, Minsu, Lee, Seungyong, Seidel, Hans-Peter, Scopigno, Roberto, Zorin, Denis, Fellner, Dieter, ...
Neural meshes : surface reconstruction with a learning algorithm (2004)
Ivrissimtzis, Ioannis, Jeong, Won-Ki, Lee, Seungyong, Lee, Yunjin, Seidel, Hans-Peter
I. P. Ivrissimtzis, S. Lee, Y. Lee, Ioannis Ivrissimtzis, ...
In this paper we propose a Learning algorithm for surface reconstruction. Our algorithm simulates an incrementally expanding neural network which learns a point cloud through a competitive learning...
Connectivity transformation for mesh metamorphosis (2004)
Ahn, Minsu, Lee, Seungyong, Seidel, Hans-Peter, Scopigno, Roberto, Zorin, Denis, Fellner, Dieter, ...
Ivrissimtzis, Ioannis, Lee, Yunjin, Lee, Seungyong, Jeong, Won-Ki, Seidel, Hans-Peter, Aloimonos, Yiannis, ...
Intelligent Mesh Scissoring Using 3D Snakes (2004)
Lee, Yunjin, Lee, Seungyong, Shamir, Ariel, Cohen-Or, Daniel, Seidel, Hans-Peter, Cohen-Or, Daniel, ...
The dichotomy of presence elements: The where and what (2003)
Dongsik Cho, Jihye Park, Gerard Jounghyun Kim, Sangwoo Hong, Sungho Han, Seungyong Lee
One of the goals and defining characteristics of virtual reality systems is to create “presence ” and fool the user into believing that one is, or is doing something “in” the synthetic...
Seongmin Baek, Seungyong Lee, Gerard Jounghyun Kim
Virtual Reality (VR) has emerged as one of the important and effective tools for educa-tion and training. Most VR-based training systems are situation-based, where the trainees are trained for...
Mesh Parameterization With A Virtual Boundary (2002)
Yunjin Lee, Hyoung Seok Kim, Seungyong Lee
Parameterization of a 3D triangular mesh is a fundamental problem in various applications of meshes. The convex combination approach is widely used for parameterization because of its good...
Geometric Snakes for Triangular Meshes (2002)
Yunjin Lee, Seungyong Lee, Eurographics G. Drettakis, Yunjin Lee Ý, Seungyong Lee Þ
Feature detection is important in various mesh processing techniques, such as mesh editing, mesh morphing, mesh compression, and mesh signal processing. In spite of much research in computer vision,...
Truly Selective Refinement of Progressive Meshes (2001)
This paper presents a novel selective refinement scheme of progressive meshes. In previous schemes, topology information in the neighborhood of a collapsed edge is stored in the analysis phase. A...
Injectivity conditions of 2d and 3d uniform cubic b-spline functions (2000)
Uniform cubic B-spline functions have been used for mapping functions in various areas such as image warping and morphing, 3D deformation, and volume morphing. The injectivity (one-to-one property)...
Injectivity conditions of 2d and 3d uniform cubic b-spline functions (2000)
Uniform cubic B-spline functions have been used for mapping functions in various areas such as image warping and morphing, 3D deformation, and volume morphing. The injectivity (one-to-one property)...
Interactive Multiresolution Editing of Arbitrary Meshes (1999)
This paper presents a novel approach to multiresolution editing of a triangular mesh. The basic idea is to embed an editing area of a mesh onto a 2D rectangle and interpolate the user-specified...
Local Injectivity Conditions of 2D and 3D Uniform Cubic B-spline Functions (1999)
Uniform cubic B-spline functions have been used for mapping functions in various areas such as image warping and morphing, 3D deformation, and volume morphing. The injectivity (one-to-one property)...
PUBLICATIONS "Abstract Line Drawings from 2D Images" (1999)
Yunjin Lee, Advisor Seungyong Lee, Surface Reconstruction, Minjung Son, Henry Kang, Yunjin Lee, ...
Non-photorealistic rendering
Tae-Joon Park, Seungyong Lee, Sung Yong Shin
This paper proposes a new approach to image-based rendering that generates an image viewed from an arbitrary camera position and orientation by rendering optical flows extracted from reference...
Polymorph: Morphing among Multiple Images (1998)
S. Lee, Seungyong Lee, S.Y. Shin, G. Wolberg
this article, we present a general framework for polymorphing by extending the traditional image morphing paradigm that applies to twoimages. We formulate each input image as a vertex of an (n -...
Scattered Data Interpolation with Multilevel B-Splines (1997)
Seungyong Lee, George Wolberg, Sung Yong Shin
This paper describes a fast algorithm for scattered data interpolation and approximation. Multilevel B-splines are introduced to compute a C 2 -continuous surface through a set of irregularly spaced...
With Multilevel Splines, Seungyong Lee, George Wolberg, Sung Yong Shin
This paper describes a fast algorithm for scattered data interpolation and approximation. Multilevel B-splines are introduced to compute a C -continuous surface through a set of irregularly spaced...
Image Metamorphosis with Scattered Feature Constraints (1996)
Seungyong Lee, George Wolberg, Kyung-yong Chwa, Sung Yong Shin
This paper describes an image metamorphosis technique to handle scattered feature constraints specified with points, polylines, and splines. Solutions to the following three problems are presented:...
Image Metamorphosis with Scattered Feature Constraints (1996)
Seungyong Lee, George Wolberg, Kyung-yong Chwa, Sung Yong Shin
This paper describes an image metamorphosis technique to handle scattered feature constraints specified with points, polylines, and splines. Solutions to the following three problems are presented:...
Yunjin Lee, Seungyong Lee, Ariel Shamir, Daniel Cohen-or, Hans-peter Seidel
This paper presents an intelligent scissoring operator for meshes. Unlike common approaches that segment a mesh using clustering schemes, we introduce a method that concentrates on the contours for...