1.

2018/06/13

Evolution of Impossible Objects (9th International Conference on Fun with Algorithms (FUN 2018))

2.

2018/02/21

Impossible Objects: The Mathematics of 3D Illusions (IMA (Institute for mathematics and Its Applications) Public Lectures)

3.

2017/12/04

Optimizing illusion for ambiguous cylinders (FrancoJapanese Days on Combinatorics and Optimization 2017 in Honor of Michel Deza)

4.

2017/11/14

Mathematics has a power for discovery and innvention (Conference on Science and Mathematics Education)

5.

2017/08/29

Topologydisturbing objects: A new class of impossible objects (European Conference on Visual Perception)

6.

2016/09/03

Laguerre Voronoi Diagram as a Tool for Fitting Spherical Tessellations Using Planar Photographic Images (JCDCG^3 2016)

7.

2016/08/30

What Defeats Binocular Stereo? (European Conference on Visual Perception 2016)

8.

2016/08/27

Ambiguous Cylinders: A New Direction of Tricky Art (Visual Science and Art Conference 2016)

9.

2016/07/12

Evolution of Impossible Objects: Mathematical Development of New 3D Illusions (CONVEGNO: Illusione e Realta: tra Psicologia e Neuroscienze)

10.

2016/06/15

Recognition of the Spherical Laguerre Voronoi Diagram (ACM Annual Symposium on Computational Geometry (SoCG 2016), Young Researchers Forum)

11.

2015/10/28

How Does Human Interpret Images?  Week Points of Our Visual Systems Learned by Mathematical Study of Optical Illusion (ICAT2015 and ICATEGVE2015)

12.

2015/09/28

Fragility of visual media culture suggested by mathematical modeling of depth perception (JST CRESTPRESTO Symposium 2015: Mathematics for the 22nd Century)

13.

2015/09/25

Visual Media Culture Supported by Human Depth Illusion (Mathematical Progress in Expressive Image Synthesis 2015 (MEIS2015))

14.

2015/09/14

Fitting Spherical Laguerre Voronoi Diagrams to Real World Tessellations Using Planar Photographic Images (JCDCGG2015)

15.

2015/08/05

Computational creation of hollow mask type illusionary solids (Asian Forum on Graphic Science)

16.

2015/08/05

Design of ambiguous cylinders (Asian Forum on Graphic Science)

17.

2015/08/05

Impossible objects as a tool for understanding the human vision systems (Asian Forum on Graphic Science (AFGS 2015))

18.

2015/08/05

Numerical fitting of planar photographic images with spherical Voronoi diagrams (Asian Forum on Graphic Science)

19.

2015/08/05

Numerical fitting of planar photographic images with spherical Voronoi diagrams (Asian Forum on Graphic Science)

20.

2015/05/17

Ambiguous cylinders: A new class of solid that evokes anomalous perception (15th Annual Meeting of the Vision Science Society (VSS 2015))

21.

2015/03/18

A method for fitting real world tessellations with Voronoi diagrams (31st European Workshop on Computational Geometry)

22.

2014/10/08

Mathematical modeling approach to creation of anomolous motion illusions (Image Electronics and Visual Computing Workshop)

23.

2014/07/05

Principle of independence for robust geometric software learned by the human visual computation (4th International Congress on Mathematical Software (ICMA 2014))

24.

2013/07/08

Design of PopUp Cards Based on Weighted Straight Skeletons (10th International Symposium on Voronoi Diagrams in Science and Engineering (ISVD 2013))

25.

2012/09/02

Impossible motions  A new type of visual illusion generated by shapefromimage equations (European Conference on Visual Perception)

26.

2012/06/27

Computational creation of a new illusionary solid sign (9th International Symposium on Voronoi Diagrams in Science and Engineering (ISVD 2012))

27.

2012/06/27

Tunnels and voids in molecules via Voronooi diagram (9th International Symposium on Voronoi Diagrams in Science and Engineering (ISVD 2012))

28.

2012/03/19

Computeraided generation of triplycrossing tile Patterns (the 28th European Workshop on Computational Geometry)

29.

2011/03/28

Design of antigravity slopes for visual illusion (27th European Workshop on Computational Geometry)

30.

2010/10/26

Simple and unbiased kernel density functions for network analysis (the 10th International Symposium on Communication and Information Technologies)

31.

2010/06/28

Voronoidiagram approach to Escherlike tiling (the 7th International Symposium on Voronoi Diagrams in Science and Engineering)

32.

2009/11/11

Computeraided design of popup books with twodimensional Vfold structures (7th Japan Conference on Computational Geometry and Graphs)

33.

2009/11/11

Maximum eigenvalue problem for Escherization (the 7th Japan Conference on Computational Geometry and Graphs)

34.

2009/06/23

Roundtour Voronoi diagrams (the 6th International Symposium on Voronoi Diagrams in Science and Engineering)

35.

2009/03/16

Computer aided design system for Escherlike tilings (the 25th European Workshop on Computational Geometry)

36.

2009/03/16

Improvement of the method for making quad meshes through temperature contours (the 25th European Workshop on Computational Geometry)

37.

2009/03/16

Robust extraction of the medial axes of 3d objects (the 25th European Workshop on Computational Geometry)

38.

2008/03/18

Discrete Voronoi diagrams on surface triangulations and a sampling condition for topological guarantee (the 24th European Workshop on Computational Geometry)

39.

2008/03/18

Realizability of solids from three silhouettes (the 24th European Workshop on Computational Geometry)

40.

2007/12/27

Almost Delaunay triangulation routing in wireless sensor networks (the 10th International Conference on Computer and Information Technology)

41.

2007/09/20

Stable computation of the optimal path for a boat on a water stream and its applications (8th HellenicEuropean Conference on Computer Mathematics and Its Applications)

42.

2007/08/20

Restricted edge contractions in triangulations of the sphere with boundary (The 19th Canadian Conference on Computational Geometry)

43.

2007/07/09

Artistic pattern generation by a model of territory competing (the 4th International Symposium on Voronoi Diagrams in Science and Engineering)

44.

2007/07/09

Direct diffusion method for the construction of generalized Voronoi diagrams (the 4th International Symposium on Voronoi Diagrams in Science and Engineering)

45.

2007/06/11

Restricted edge contractions in surface triangulations (The Kyoto International Conference on Computational Geometry and Graph Theory)

46.

2006/07/26

Computation of normals for stationary subdivision surfaces (The Fourth International Conference on Geometric Modeling and Processing)

47.

2006/07/02

A new initialization method for constructing centroidal Voronoi tessellations on surface meshes (the 3rd International Symposium on Voronoi Diagrams in Science and Engineering)

48.

2006/07/02

Stable and topologypreserving extraction of medial axes (the 3rd International Symposium on Voronoi Diagrams in Science and Engineering)

49.

2006/07/02

Stable and topologypreserving extraction of medial axes (the 3rd International Symposium on Voronoi Diagrams in Science and Engineering)

50.

2006/01/30

Dual subdivisionA new class of subdivision schemes using projective duality (14th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2006)

51.

2005/10/10

Exact computation of a circle Voronoi diagram (the 2nd International Symposium on Voronoi Diagrams in Science and Engineering)

52.

2005/10/10

Robust construction of sphere Voronoi diagrams using digital topology (the 2nd International Symposium on Voronoi Diagrams in Science and Engineering)

53.

2005/09/05

Line subdivision (11th IMA International Conference on Mathematics of Surfaces)

54.

2005/05/23

A new characteristic nonreflecting boundary condition for the multidimensional NavierStokes equations (11th AIAA/CEAS Aeroacoustics Conference (26th AIAA Aeroacoustics Conference)

55.

2005/01/31

New spectral decomposition for 3D polygonal meshes and its application to watermarking (13th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2005)

56.

2004/11/18

Realization of impossible objects and a new type of visual illusion (Mathematical Aspects of Image Processing and Computer Vision 2004)

57.

2004/05/16

Planesweep algorithm of O$(n\log n)$ for the inclusion hierarchy among circles (ICCSA 2004)

58.

2004/05/14

Approximation of the boatsail Voronoi diagram and its application (ICCSA 2004)

59.

2004/05/14

Improving the global continuity of the natural neighbor interpolation (ICCSA 2004)

60.

2003/12/15

Voronoi diagram in the flow field (ISAAC 2003)

61.

2003/11/10

Voronoi diagram of circles and its applications (SIAM Conference on Geometric Design and Computing)

62.

2003/09/15

Compression of arbitrary mesh data using subdivision spheres (The 10th IMA Conference on the Mathematics of Surfaces)

63.

2003/09/15

Watermarking 3D polygonal meshes using the singular spectrum analysis (The 10th IMA Conference on the Mathematics of Surfaces)

64.

2003/05/18

Twodimensional range search based on the Voronoi diagram (ICCSA 2003)

65.

2003/05/18

Voronoi diagram of circles in a large circle (ICCSA 2003)

66.

2002/07/10

G^1 surface interpolation for irregularly located data (GMP2002)

67.

2002/07/10

The Minkowski sum of two simple surfaces generated by slopemonotone closed curves (GMP2002)

68.

2002/04/07

Hyperfigures and their interpretations (11th International Workshop on Theoretical Foundations of Computer Vision)

69.

2002/04/03

Invertible Minkowski sum of polygons (10th International Conference on Discrete Geometry for Computer Imagery)

70.

2002/04/03

Shape representation using trihedral mesh projections (10th International Conference on Discrete Geometry for Computer Imagery)

71.

2002/03/30

G^1 surface interpolation using Gregory patches over irregular meshes (NICOGRAPH International 2002)

72.

2001/07/30

Apollonius Tenth Problem as a point location problem (ICCS 2001)

73.

2001/07/30

Crystal Voronoi diagram and its applications to collisionfree paths (ICCS 2001)

74.

2001/07/30

Robust and fast algorithm for a circle set Voronoi diagram in a plane (ICCS 2001)

75.

2001/06/28

Hybrid arithmetic for acceleration of geometric algorithmsSuitable error estimation for each of sign decisions (6th KoreaJapan Joint Workshop on Algorithms and Computation)

76.

2001/06/28

Topologyoriented robust algorithm for constructing line arrangements (6th KoreaJapan Joint Workshop on Algorithms and Computation)

77.

2001/06/06

The computation of circumcircles of three circles (the 6th ACM Symposium on Solid Modeling and Applications)

78.

2000/11/01

Robust and fast construction of a circle set Voronoi diagram from a point set Voronoi diagram (the IASTED International Conference on Computer Graphics and Imaging)

79.

2000/07/21

Topology operation of circle set Voronoi diagram construction from the Voronoi diagram of a point set (the Riken Symposium on Geometric Processing for Innovative Applications)

80.

2000/06/14

Voronoibased interpolation with higher continuity (the 16th Annual Symposium on Computational Geometry)

81.

2000/04/10

A sequence of generalized coordinate systems based on Voronoi diagrams and its application to interpolation (Geometric Modeling and Processing 2000)

82.

1999/10/05

Exact computation of 4D convex hulls with perturbation and acceleration (the 7th Pacific Conference on Computer Graphics and Applications (Pacific Graphics '99))

83.

1999/03/01

Generalization of an interpolant using Voronoi diagrams in two directions (the International Conference on Shape Modeling and Applications)

84.

1998/12/09

``Impossible objects'' are not necessarily impossibleMathematical study on optical illusion (JCDCG'98)

85.

1998/12/09

An interpolant based on line segment Voronoi diagrams (JCDCG'98)

86.

1998/04/07

A new local coordinate system based on the Voronoi diagrams (the Workshop on Differential/Topological Techniques in Geometric Modeling and Processing '98)

87.

1997/12/17

Topology oriented vs. exact arithmetic  experience in implementing the threedimensional convex hull algorithm (Algorithms and Computation, 8th International Symposium, ISAAC'97)

88.

1997/03/20

How to draw a Delaunay diagram with a given topology (the 13th European Workshop on Computational Geometry)

89.

1997/03/03

Experimental study on acceleration of an exactarithmetic geometric algorithm (the Shape Modeling International'97)

90.

1996/10/14

3D convex hull as a fruitful source of diagrams (the 9th FrancoJapan Days on Combinatorics and Optimization)

91.

1996/08/23

Recognition of Delaunay graphs (KoreaJapan Joint Workshop on Algorithms and Computation)

92.

1995/12/05

Construction of impossible objectsApplication of pictureinterpretation theory to illusory toys (the 2nd Asian Conference on Computer Vision)

93.

1995/12/05

Exact algorithm for Minkowski operators (the 2nd Asian Conference on Computer Vision)

94.

1995/10/19

Combinatorial abstractionA new paradigm for robust geometric computation (International Workshop on Current Directions in Numerical Software and High Performance Computing (IFIP/WG2.5 Workshop))

95.

1995/07/03

Numerical issues and practical implementations in computational geometry (ICIAM95 (Third International Congress on Industrial and Applied Mathematics))

96.

1994/08/02

Numerically robust algorithm for constructing constrained Delaunay triangulation (the 6th Canadian Conference on Computational Geometry)

97.

1994/07/11

How to cope with degeneracy in constructing threedimensional Delaunay triangulation (the 14th IMACS World Congress on Computational and Applied Mathematics)

98.

1994/06/13

Topologically consistent algorithm for constructing constrained Delaunay triangulation (the 7th FrancoJapanese Days on Combinatorics, Optimization and Computational Geometry)

99.

1993/05/19

Resolvable representation of polyhedra (the Second ACM/IEEE Symposium on Solid Modeling and Applications)

100.

1992/12/16

Topologically consistent algorithms related to convex polyhedra (the Third International Symposium, ISAAC'92)

101.

1992/08/10

Numerically robust incremental algorithm for constructing threedimensional Voronoi diagrams (the Fourth Canadian Conference on Computational Geometry)

102.

1991/09/02

Applications of the Delaunay triangulations to geometric intersection problems (the 15th IFIP Conference on System Modelling and Optimization)

103.

1990/08/06

Topologyoriented approach to robustness and its applications to several Voronoidiagram algorithms (the Second Canadian Conference in Computational Geometry)

104.

1989/10/20

Topologyoriented approach to designing numerically stable geometric algorithms (Second FrancoJapan Days on Combinatorics and Optimization)

105.

1989/08/21

Construction of the Voronoi diagram for over $10^5$ generators in singleprecision arithmetic (the First Canadian Conference on Computational Geometry)

106.

1987/08/09

Location of a robot using sparse visual information (the Fourth International Symposium Robotics Research)

107.

1987/02/02

Recognition of threedimensional objects by means of regular pattern projection (the IEEE International Workshop on Industrial Applications of Machine Vision and Machine Intelligence)

108.

1987/02/02

Some location problem for singleeye robot navigation (the IEEE International Workshop on Industrial Applications of Machine Vision and Machine Intelligence)

109.

1985/11/28

A correspondence between line drawings of polyhedrons and plane skeletal structures (the First International Symposium for Science on Form)

110.

1984/08/22

Regular pattern projection for surface measurement (the Second International Symposium on Robotics Research)

111.

1979/08/21

Automatic construction of junction dictionaries and their exploitation for the analysis of range data (the Sixth International Joint Conference on Artificial Intelligence)

112.

1978/11/10

Quantitative analysis of line drawings of polyhedral scenes (the Fourth International Conference on Pattern Recognition)

113.

1978/11/04

A mathematical approach to the determination of the structure of concepts (IEEE International Conference on Cybernetics and Society)

114.

1977/08/25

Range data understanding guided by a junction dictionary (the Fifth International Joint Conference on Artificial Intelligence)

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