Vlastimil Havran
full list of publications
A full list of publications that I have (co-)authored including journal and conference publications, research reports, posters, presentations, project reports both peer-reviewed and not reviewed ones is listed below and available also in [BibTex] and [PDF]. I do not list here students' theses under my supervision. The Google Scholar, ResearchGate, DBLP, ORCID, ResearcherID, Scopus Author ID webpage profiles available.

Note: some publications on this webpage may be the subject of copyright of different organizations and publishing houses such as ACM, IEEE, Eurographics, BlackWiley, Elsevier, Wiley etc. You have to consult the appropriate publisher and/or assocation when using any content from this webpage, in particular for commercial purposes and reprints.


    2024:
  1. J. Hosek, S. Nemcova, V. Havran: "General relations for optical design parameters under diffraction limited paraxial imaging", Journal Optics and Lasers in Engineering Volume 174, March 2024, 107960, [PDF at Science Direct] (Open Access), [BibTeX].

    2. 2023:
  2. S. Nemcova, V. Havran, J. Hosek: "Different view on diffraction limited imaging optics design", Journal of the Optical Society of America A 40(1), DOI: 10.1364/JOSAA.474688, January 2023, [PDF at publisher], [BibTeX].

    3. 2022:
  3. V. Havran, J.Sloup:Fast Ray Tracing of Trimmed NURBS Surfaces on a GPU for Industrial Applications, NVIDIA GTC Digital Spring Conference, March 21-24, 2022, 22 slides, 22 minutes, [Web page width video].

    4. 2021:
  4. J. Sloup, V. Havran: "Optimizing Ray Tracing of Trimmed NURBS Surfaces on the GPU", in Pacific Graphics 2021, Wellington, New Zealand. In Computer Graphics Forum, Volume 40, Issue 7, page 161-172. The definitive version available at Wiley Online Library: [PDF], the EG version available [PDF] (Local copy [PDF]. Supplementary (51 pages [PDF] + MP4 video of ray tracing [MP4]) at EG: [ZIP], local copy (272 MBytes) [ZIP], [BibTeX]. Also check [Presentation video in MP4].

    5. 2020:
  5. V. Havran, J. Hosek, J. Bittner, S. Nemcova, J. Cap: "Portable device for measuring the geometry of an object and its spatially varying surface reflectance on site", United States Patent US 10,764,482 B2, [Patent Link at USPTO], 1 September, 2020.
  6. V. Havran, M. Vinkler, J. Bittner, W-J. Lee : "Method and apparatus for rendering using locations and sizes of primitives", United States Patent US 10,580,193 B2, [Patent Link at USPTO], 3 March, 2020.

    7. 2019:
  7. L. Szirmay-Kalos, V. Havran, M. Sbert: "Optimal Deterministic Mixture Sampling", Eurographics 2019, short papers, May 2019. DOI 10.2312/egs.20191018, [PDF], [BibTeX].
  8. V. Havran, J. Hosek, S. Nemcova, J. Cap: "Increasing the Spatial Resolution of BTF Measurement with Scheimpflug Imaging", in Computer Graphics Forum, Volume 38, Issue 1, February 2019, pages 592-609. A preliminary version of the paper in [PDF]. The definitive version is available at Wiley [PDF],[BibTeX]. Please note that there are five supplementary files at Wiley website.

    9. 2018:
  9. V. Havran, J. Hosek, S. Nemcova, J. Cap: "On the Advancement of BTF Measurement on Site", at the Sixth Annual Eurographics Workshop on Material Appearance Modeling (MAM 2018), Karlsruhe, Germany, July 2018.
  10. M. Sbert, V. Havran, L. Szirmay-Kalos, V. Elvira: "Multiple Importance Sampling Characterization by Weighted Mean Invariance", The Visual Computer journal, volume 34, pp. 843–852, May 2018, doi.org/10.1007/s00371-018-1522-x, [Online Access PDF] Online Version, [BibTeX], [DOI REF] .
  11. J. Hosek, V. Havran. S. Nemcova, J. Cap: "Laser Imaging Approach for Portable BTF Measurement System Automatic Alignment", International Journal of Mechatronics and Applied Mechanics. 2018, 2(4), 232-237. ISSN 2559-4397.
  12. J. Hosek, V. Havran, J. Cap, S. Nemcova: "Alignment Issues for any Sample Direction BTF Measurement", to appear, International Conference on Innovation, Engineering and Entrepreneurship, HELIX 2018, June 27-29, 2018, Guimaraes, Portugal. [Article Online by Springer],[BibTeX].
  13. M. Sbert, V. Havran, L. Szirmay-Kalos:"Multiple importance sampling revisited: breaking the bounds", EURASIP Journal on Advances in Signal Processing, year 2018, doi.org/10.1186/s13634-018-0531-2, pages 1-15, [Article Online Open Access], [BibTeX].

    14. 2017:
  14. V. Havran, J. Hosek: "K nerozeznani od skutecnosti", in journal of Czech Technical University in Prague, Prazska Technika 2017/4, September 2017, [Online in Czech].
  15. J. Cap, J. Hosek, V. Havran, S. Nemcova, K. Macuchova:"Optomechanical design of rotary kaleidoscope for bidirectional texture function acquisition", in Applied Optics, Vol. 56, Issue 26, pp. 7373-7384 (2017), [Article Online at OSA], [BibTeX].
  16. M. Vinkler, J. Bittner, V. Havran:"Extended Morton Codes for High Performance Bounding Volume Hierarchy Construction", in proceedings of conference High Performance Graphics 2017, Los Angeles, USA, July 28-30, 2017, [Project page], [Preliminary PDF], [BibTeX].
  17. V. Havran, J. Hosek, S. Nemcova, J. Cap, J. Bittner: "Lightdrum: Portable Surface-Reflectance Measurement Onsite", SIGGRAPH 2017 posters, July/August 2017.
  18. J. Hosek, V. Havran, J. Cap, S. Nemcova, J. Bittner: Navrh a realizace prenosneho zarizeni pro mereni BTF povrchu, in journal Jemna mechanika a optika, 2017, 62(6-7), 180-184. ISSN 0447-6441 (In Czech).
  19. M. Sbert, V. Havran: "Adaptive Multiple Importance Sampling for General Functions", in conference Computer Graphics International (CGI) 2017, published as special issue of Visual Computer journal, June 27-30, 2017, Yokohama, Japan. [Article Online at Springer], [BibTeX].
  20. V. Havran, J. Hosek, S. Nemcova, J. Cap, and J. Bittner: "Lightdrum--Portable Light Stage for Accurate BTF Measurement on Site", in journal of Sensors (MDPI), Volume 17, issue 3, 2017, article no. 423, pp. 1-57, doi:10.3390/s17030423, [Article Online at MDPI], [PDF], [BibTeX], project webpage with videos and data.
  21. J. Hosek, V. Havran, S. Nemcova, J. Bittner, and J. Cap: "Optomechanical design of a portable compact bidirectional texture function measurement instrument", in journal of Applied Optics 56, Issue 4, 1183-1193, February 2017. [Article Online at OSA], [PDF] at OSA website, [BibTeX].

    22. 2016:
  22. M. Vinkler, V. Havran, J. Bittner:"Performance Comparison of Bounding Volume Hierarchies and Kd-trees for GPU Ray Tracing", in Computer Graphics Forum, accepted September 2015, published online 18th November 2015, DOI: 10.1111/cgf.12776, Volume 8, Issue 35, pages 68-79, December 2016. Article Online at Wiley, [PDF online at Wiley], [PDF preprint], [BibTeX].
  23. V. Havran, S. Nemcova, J. Cap, J. Hosek, J. Bittner, K. Macuchova: "Geometric calibration of rotational kaleidoscopic instrument", Proc. SPIE 10151, Optics and Measurement International Conference 2016, 101510Q (November 11, 2016); doi:10.1117/12.2257434, [PDF] at SPIE digital library, [BibTeX].
  24. S. Nemcova, V. Havran, J. Cap, J. Hosek, J. Bittner:"Compensating for color artifacts in the design of technical kaleidoscopes", Opt. Eng. 55(11), 113104 (Nov 23, 2016). doi:10.1117/1.OE.55.11.113104, [PDF] at SPIE digital library, and [BibTeX].
  25. M. Sbert, V. Havran, L. Szirmay-Kalos:"Variance Analysis of Multi-sample and One-sample Multiple Importance Sampling", conference Pacific Graphics (Conference page), published in Computer Graphics Forum, Volume 35, Issue 7, October 2016, [PDF] at Wiley Online Library, [preliminary PDF], and [BibTeX].
  26. V. Havran, J. Filip, K. Myszkowski: "Perceptually Motivated BRDF Comparison using Single Image", at EGSR2016 conference, published in Computer Graphics Forum, Volume 35, Issue 4, July 2016, [PDF] in preliminary version, [PDF] in final version at Wiley Online Library, [BibTeX], and [project webpage].
  27. V. Havran:"Practical Experiences from Using Autocollimator for Surface Reflectance Measurement", MAM 2016 workshop, 5 pages, June 2016, DOI = 10.2312/mam.20161250, [PDF] at Eurographics Digital Library, and [BibTeX].
  28. J. Filip, V. Havran, K. Myszkowski:"Gaze Analysis of BRDF Distortions", MAM 2016 workshop, 4 pages, June 2016, DOI = 10.2312/mam.20161252, [PDF] at Eurographics Digital Library, [PDF] locally, and [BibTeX].
  29. M. Vinkler, V. Havran, J. Bittner, J. Sochor: "Parallel On-Demand Hierarchy Construction on Contemporary GPUs", 14 pages, in IEEE TVCG journal, [Article Online], (online August 2015), Issue No.07 - July (2016 vol.22) pp: 1886-1898, 2016, [PDF preprint] [BibTeX].
  30. S. Nemcova, V. Havran, J. Cap, J. Hosek, J. Bittner: "Compensating for colour artefacts in the design of technical kaleidoscopes", conference SPIE Photonics Europe 2016 (Brussels), Proc. SPIE 9896, Optics, Photonics and Digital Technologies for Imaging Applications IV, 989608 (June 23, 2016); doi:10.1117/12.2225166, [PDF] online at SPIE digital library, [BibTeX].

    31. 2015:
  31. M. Vinkler and V. Havran:"Register Efficient Dynamic Memory Allocator for GPUs", Computer Graphics Forum, December 2015 (invited article from HPG 2014, extended), Volume 34, Issue 8, pages 143-154, CMalloc project homepage. Article online, [PDF preprint], [BibTeX].
  32. V. Havran, J. Bittner, J. Cap, J. Hosek, K. Macuchova, S. Nemcova: "Software simulator for design and optimization of the kaleidoscopes for the surface reflectance measurement", in Proceedings of SPIE Vol. 9442. Bellingham (stát Washington): SPIE, 2015, Proceedings of SPIE. ISSN 0277-786X. ISBN 978-1-62841-557-5. Available from: SPIE.
  33. J. Hosek, J.; V. Havran, J. Cap, J.; S. Nemcova, K. Macuchova, J. Bittner, J. Zicha:"Realisation of Circular Motion for Portable BTF Measurement Instrument", in journal Romanian Review Precision Mechanics, Optics & Mechatronics. 2015, 48(2), 252-255. ISSN 1584-5982.
  34. J. Cap, V. Havran, J. Bittner, J. Hosek, K. Macuchova, S. Nemcova:"Optimizing of functional design parameters of kaleidoscopes", In Proc. SPIE 9450, Photonics, Devices, and Systems VI. Bellingham: SPIE, 2015, Proceedings of SPIE. ISSN 0277-786X. ISBN 978-1-62841-566-7. Available from: SPIE.
  35. V. Havran:"Geometric Accuracy Analysis of Stationary BTF Gonioreflectometers", the position paper at MAM 2015 workshop, 5 pages, [Electronic access at EG library] Darmstadt, Germany, June 2015.
  36. V. Havran, J. Bittner, J. Cap, J. Hosek, K. Macuchova, S. Nemcova:"Softwarová simulace návrhu a optimalizace kaleidoskopu pro měření odrazivosti povrchu", in journal Jemna mechanika a optika. 2015, 60(2), 70-72. ISSN 0447-6441 (In Czech).
  37. V. Bubnik and V. Havran:"Light Chisel: 6DOF Pen Tracking", at Eurographics 2015, special issue of Computer Graphics Forum, Vol. 34, No. 2, pages 325-336, May 2015. Light Chisel project home page, paper [PDF] and [BibTeX].
  38. V. Havran and M. Sbert:"Surface Reflectance Characterization by Statistical Tools", at SCCG 2015 conference, pages 55-62, Smolenice, Slovakia, April 2015. [PDF], [BibTeX], [video MP4], [video WMV].
  39. J. Bittner, M. Hapala, and V. Havran: "Incremental BVH Construction for Ray Tracing", Article online, Computers and Graphics journal (Elsevier), April 2015.[BibTeX]
  40. V. Havran and P. Egert: "Extensions to Bidirectional Texture Function Compression with Multi-Level Vector Quantization in OpenCL", Article Online, Computers and Graphics journal (Elsevier), January 2015. [PDF], [BibTeX].

    41. 2014:
  41. V. Havran and M. Sbert: "Optimal Combination of Techniques in Multiple Importance Sampling", VRCAI 2014 conference , November 30, 2014, Shenzhen, [PDF] in ACM Digital library, [BibTeX].
  42. P. Egert, V. Havran: "Parallel BTF Compression with Multi-Level Vector Quantization in OpenCL", short papers, 4 pages, in Pacific Graphics 2014, pages 131-134, Seoul, October 2014, [PDF], [BibTeX].
  43. S. Nemcova, J. Cap, J. Hosek, K. Macuchova; J. Bittner, V. Havran:"Simple kaleidoscope design for reflectance measurement", in journal Romanian Review Precision Mechanics, Optics & Mechatronics. 2014, 45(2), 109-113. ISSN 1584-5982.
  44. S. Nemcova, J. Cap, J. Hosek, K. Macuchova; J. Bittner, V. Havran:"Simple kaleidoscope design for reflectance measurement", in proceedings of conferece Mecahitec 2014, Bucharest, Romania, 2014, pages 1-4. [PDF at conference webpage].
  45. V. Havran and M. Sbert: "Optimal Combination of Techniques in Multiple Importance Sampling", Technical Report CS-TR-DCGI-2014-2, Department of Computer Graphics and Interaction, Czech Technical University, FEE, August 2014. [PDF] and [BibTeX].
  46. V. Havran, M. Sbert: "Statistical Characterization of Surface Reflectance", the position paper at MAM2014 workshop, pages 15-18, June 2014, [BibTeX].
  47. M. Vinkler, V. Havran: "Register Efficient Memory Allocator for GPUs", in proceedings of conference High Performance Graphics 2014, pages 19-27, Lyon, France, June 2014.[Slides], [PDF], [Source codes],[BibTeX]
  48. M. Vinkler, V. Havran, J. Bittner: "Bounding Volume Hierarchies versus Kd-trees on Contemporary Many-Core Architectures", in proceedings of conference SCCG 2014, pages 61-68, Smolenice, Slovakia, May 2014, [Slides Video], [PDF], [BibTeX].
  49. V. Havran, J. Bittner: "Efficient Sorting and Searching in Rendering Algorithms", the half-day tutorial T8, at Eurographics 2014 conference, Strasbourg, France, 7-11 April 2014, tutorial homepage, tutorial info [PDF], slides [PDF], [BibTeX].

    50. 2013:
  50. T. Nikodym, V. Havran, J. Bittner: "Multiple Live Video Environment Sampling", full paper in WSCG 2013, published in Journal of WSCG, Vol. 21, Issue 2, pages 127-136, ISSN 1213-6972, Pilsen, Czech Republic, June 2013, [PDF], [BibTeX], [Video in MP4 format], Web page with source codes.
  51. T. Barak, J. Bittner, V. Havran: "Temporally Coherent Adaptive Sampling for Imperfect Shadow Maps", EGSR 2013 (Zaragoza, Spain), published in journal Computer Graphics Forum, Volume 32, Issue 4, pages 87-94, June 2013, DOI: 10.1111/cgf.12154, [PDF, Article Online at Wiley], [Preprint PDF], [BibTeX], [Video in MP4 format].
  52. J. Filip, R. Vavra, M. Haindl, P. Zid, M. Krupicka, V. Havran: "BRDF Slices: Accurate Adaptive Anisotropic Appearance Acquisition", in proceedings of the 26th IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2013 conference), pages 4321--4326, Portland, Oregon, June 25-27, 2013. [PDF], [BibTeX], [Poster PDF].
  53. M. Vinkler, J. Bittner, V. Havran, M. Hapala: "Massively Parallel Hierarchical Scene Processing with Applications in Rendering", in journal Computer Graphics Forum, Issue 8, pages 13-25, December 2013, DOI: 10.1111/cgf.12140, [PDF, Article Online at Wiley], [Preprint PDF] [BibTeX]. Presented at the conference EGSR2014.
  54. J. Bittner, M. Hapala, V. Havran: "Fast Insertion Based Optimization of Bounding Volume Hierarchies", in journal Computer Graphics Forum, Volume 32, Issue 1, pages 85-100, February 2013, DOI: 10.1111/cgf.12000, [PDF, Article Online at Wiley], [Preprint PDF], [BibTeX].

    55. 2012:
  55. V. Havran: "PhD Study Guide for Computer Science at Czech Technical University", written in September 2012. In Czech, 86 pages, available for purchase from DCGI administration. (Czech title:"Pruvodce doktorskym studiem pro informaticke obory na CVUT"), published at printer of [Karolinum Press], ISBN 978-80-01-05263-1, June 2013 (illustrated by Jojin&HedgeHog).
  56. M. Vinkler, M. Hapala, J. Bittner, and V. Havran: "Massively Parallel Hierarchical Scene Sorting with Applications in Rendering", Technical Report CS-TR-DCGI-2012-1, Department of Computer Graphics and Interaction, Czech Technical University, Faculty of Electrical Engineering, August 2012. [PDF] and [BibTeX].
  57. M. Vinkler, V. Havran, J. Sochor: "Visibility Driven BVH Build Up Algorithm for Ray Tracing", in journal Computers and Graphics, ISSN 0097-8493, volume 36, issue 4, pages 283-296, June 2012. Available online on web by Elsevier, the video included. Preliminary version of the article also available in [PDF] and [BibTeX], [Video walkthrough], [Video animation].

    58. 2011:
  58. V. Havran, J. Bittner, P. Slavik, and J. Zara: "How to Write a Technical Report at the DCGI, FEE, Czech Technical University in Prague, CZ", Technical Report CS-TR-DCGI-2011-1, Department of Computer Graphics and Interaction, Czech Technical University, FEE, June 2011. [PDF] and [BibTeX].
  59. M. Hapala, T. Davidovic, I. Wald, V. Havran, P. Slusallek: "Efficient Stack-less BVH Traversal Algorithm for Ray Tracing", at proceedings of SCCG 2011 conference, Vinicne, Slovakia, pages 29--34, April 2011 (proceedings ACM 2013), article preprint in [PDF], [BibTeX], and presentation slides as video in [WMV] format.
  60. M. Hapala, O. Karlik, V. Havran: "When It Makes Sense to Use Uniform Grids for Ray Tracing", in Communication Papers proceedings, pages 193-200, conference WSCG 2011, Pilsen, Czech Republic, February 2011. [PDF], [BibTeX], and presentation slides [PDF].
  61. M. Hapala, O. Karlik, V. Havran: "When it is More Efficient to Use Uniform Grids for Ray Tracing", in electronic proceedings of CTU student conference, 3 pages, Prague, Czech Republic, February 2011. [PDF], [BibTeX].
  62. M. Hapala, V. Havran: "Review: Kd-tree Traversal Algorithms for Ray Tracing", in journal Computer Graphics Forum, Vol. 30, Issue 1, pages 199--213, March 2011, [Article Online at Wiley], preprint in [PDF], [BibTeX].
  63. V. Havran:"Compression of BTF Data via Searching and Nested Vector Quantization", extended abstract for habilitation thesis defense, Czech Technical University, Faculty of Electrical Engineering, March 2011, ISBN 978-80-01-04736-1, 22 pages [PDF], [BibTeX].
  64. J. Novak, V. Havran, C. Dachsbacher: "Path Regeneration for Random Walks", Chapter 26 of GPU Computing Gems Emerald Edition, edited by Wen-mei W Hwu, ISBN 9780123849885, Morgan Kaufmann publishers, pages 401--412, January 2011. [Source Code] and [BibTeX].

    65. 2010:
  65. R. Berka, Z. Travnicek, V. Havran, J. Bittner, J. Zara, P. Slavik, P. Borovsky and J. Navratil: "Implementing Video-Based, Remotely Accessible Virtual Environment System", Research Report 23, CESNET, Prague, Czech Republic, 15 pages, December 2010. [PDF], [BibTeX],
  66. J. Novak, V. Havran, C. Dachsbacher: "Path Regeneration for Interactive Path Tracing", 4 pages, Eurographics 2010 as short paper, pages 61-64, May 3-7, 2010, Norrkoeping, Sweden, [PDF], [BibTeX], and [VIDEO in WMV format].
  67. V. Havran:"Efficient Searching Algorithms in Image Synthesis", Habilitation Thesis, Czech Technical University in Prague, Faculty of Electrical Engineering, 106 pages [BibTeX].
  68. M. Zlatuska and V. Havran: "Ray Tracing on a GPU with CUDA -- Comparative Study of Three Algorithms", in WSCG 2010 conference, Communication Papers proceedings, pages 69--76, February 1-4, 2010, [PDF], [BibTeX], [Master Thesis of Martin Zlatuska in Czech], [sources framework and scenes].
  69. V. Havran, J. Filip, K. Myszkowski: "Bidirectional Texture Function Compression based on the Multilevel Vector Quantization", in Computer Graphics Forum, Vol. 29, Issue 1, pages 175--190, January 2010, project webpage, [Article Online at Wiley], [PDF online], and [BibTeX], preliminary version of the paper in [PDF].

    70. 2009:
  70. V. Havran: "Rozsirena realita na Karlove namesti ma velky pedagogicky potencial", journal Technicall, CTU publishing house, vol. 4, pp. 17-17, 2009, (In Czech), [PDF] and [BibTeX].
  71. V. Havran, J. Zajac, J. Drahokoupil, H.-P. Seidel: "MPI Informatics Building Model as Data for Your Research", research report, MPI Informatics, MPI-I-2009-4-004, 113 pages, December 2009, project webpage, [PDF] and [BibTeX].
  72. V. Havran, J. Filip, K. Myszkowski: "Bidirectional Texture Function Compression based on the Multilevel Vector Quantization SUPPLEMENTAL MATERIAL", technical report No. 2265, Academy of Sciences of the Czech Republic, Institute of Information Theory and Automation, 59 pages, December 2009, project webpage, [PDF], and [BibTex].
  73. J. Bittner, O. Mattausch, P. Wonka, V. Havran, M. Wimmer: "Adaptive Global Visibility Sampling", SIGGRAPH 2009, New Orleans, ACM TOG, Vol. 28, Issue 3, pages 94:1-94:10, August 2009, project webpage, [PDF], and [BibTeX].
  74. J. Bittner, V. Havran: "RDH: Ray Distribution Heuristics for Construction of Spatial Data Structures", Spring Conference on Computer Graphics 2009, pages 61-67, May 2009, published by ACM SIGGRAPH, Budmerice, Slovakia. [PDF] and [BibTeX].

    75. 2008:
  75. R. Berka, Z. Travnicek, V. Havran, J. Bittner, J. Zara, P. Slavik, and J. Navratil: "CAVE to CAVE: Communication in Distributed Virtual Environment", Research Report 23, CESNET, Prague, Czech Republic, 12 pages, December 2008. [PDF] and [BibTeX]
  76. V. Havran: "Virtualni realita na Karlove namesti", journal Technicall, publisher CTU, vol. 2, pp. 13-13, 2008. [PDF] and [BibTeX]

    77. 2007:
  77. V. Havran, J. Bittner: "Stackless Ray Traversal for kD-Trees with Sparse Boxes", Computer Graphics and Geometry [online journal], 2007, vol. 9, no. 3, pages 16-30, ISSN 1811-8992. Preliminary version in [PDF] and [BibTeX].
  78. J. Bittner, V. Havran: "RDH: Ray Distribution Heuristics for Construction of Spatial Data Structures". In Proceedings of Symposium on Interactive Ray Tracing 2007 (posters), 1 page, September 2007, Ulm, Germany, [PDF], and [BibTeX].
  79. R. Herzog, V. Havran, S. Kinuwaki, K. Myszkowski, H.-P. Seidel: "Global Illumination using Photon Ray Splatting", Computer Graphics Forum, Vol. 26, Issue 3, pages 503-513, (proceedings of Eurographics 2007 conference, September 2007, Prague, Czech Republic.) [Article Online at Wiley] and local copy of [PDF] and [BibTeX].
  80. R. Herzog, V. Havran, S. Kinuwaki, K. Myszkowski, H.-P. Seidel: "Global Illumination using Photon Ray Splatting", MPI Informatics, Research Report, MPI-I-2007-4-007 May 2007, 65 pages, [PDF] and [BibTeX].
  81. V. Havran: "About the Relation between Spatial Subdivisions and Object Hierarchies Used in Ray Tracing", at Proceedings of conference SCCG 2007, Budmerice, Slovakia, April 26-28, 2007, pages 55-60. [PDF] and [BibTeX].
  82. V. Havran and J. Bittner: "Ray Tracing with Sparse Boxes", at Proceedings of conference SCCG 2007, Budmerice, Slovakia, April 26-28, 2007, pages 49-54. [PDF], and [BibTeX].

    83. 2006:
  83. V. Havran, R. Herzog, H.-P. Seidel: "On the Fast Construction of Spatial Hierarchies for Ray Tracing", in proceedings of IEEE Symposium on Interactive Ray Tracing, September 2006, pages 71-80, Salt Lake City, UTAH, USA. [PDF], [BibTeX], and [Powerpoint Slides].
  84. V. Havran, J. Bittner: "Efficient Sorting and Searching in Rendering Algorithms", a half-day tutorial T4 at Eurographics 2006, Vienna, Monday 4th September 2006, 14:00-17:30. [Tutorial webpage], [PDF] and [BibTeX].
  85. I. Wald, A. Dietrich, C. Benthin, A. Efremov, T. Dahmen, J. Guenther, V. Havran, H.-P. Seidel, and P. Slusallek: "Ray tracing based framework for high-quality virtual reality in industrial design applications", in proceedings of IEEE Symposium on Interactive Ray Tracing, September 2006, pages 177-185, Sept. 2006. [PDF] and [BibTeX]
  86. I. Wald, V. Havran: "On building fast kd-trees for ray tracing, and on doing that in O(N log N)", in proceedings of IEEE Symposium on Interactive Ray Tracing, September 2006, pages 61-69, Salt Lake City, UTAH, USA. [PDF] and [BibTeX](At HPG'2015 conference in Los Angeles, the paper received "Test of Time 2006 award").
  87. V. Havran, R. Herzog, H.-P. Seidel: "On Fast Construction of Spatial Hierarchies for Ray Tracing", research report, MPI Informatics, MPI-I-2006-4-008, 28 pages, June 2006. [PDF] and [BibTeX].
  88. I. Wald, V. Havran:"On building fast kd-Trees for Ray Tracing, and on doing that in O(N log N)", Technical Report UUSCI-2006-009, SCI Institute, Salt Lake City, February 2006, [PDF] and [BibTeX].

    89. 2005:
  89. A. Yoshida, K. Myszkowski, V. Havran, and A. Artusi: "D10.4: Perceptual Evaluation of Tone Mapping Operators", Deliverable Report of RealReflect, EU IST project IST-2001-34744, RealReflect project, 38 pages, 2005. [PDF] and [BibTeX].
  90. V. Havran, K. Myszkowski, J. Wurster, and C. Soler: "D10.3: Report on Light Simulation in Architecture", Deliverable Report of RealReflect, EU IST project IST-2001-34744, RealReflect project, 26 pages, 2005. [PDF] and [BibTeX].
  91. G. Zotti, V. Havran, and A. Neumann: "D10.1: Test Report on Data Acquisition", Deliverable Report of RealReflect, EU IST project IST-2001-34744, RealReflect project, 21 pages, 2005. [PDF] and [BibTeX].
  92. V. Havran, R. Herzog, H.-P. Seidel: "Fast Final Gathering via Reverse Photon Mapping", EUROGRAPHICS 2005, Computer Graphics Forum, Volume 24, Number 3, pages 323-333, 29 August - 2 September 2005, Dublin, Ireland. [Article online] and local copy of [PDF] and [BibTeX]. Also see the Master Thesis by Robert Herzog for further details.
  93. V. Havran, M. Smyk, G. Krawczyk, K. Myszkowski, H.-P. Seidel: "Importance Sampling for Video Environment Maps", in Sketches, SIGGRAPH 2005, Tuesday, 2 August, 8:30 - 10:15 am, Petree Hall C, Convention Center in Los Angeles, USA. See Project Page for details (videos etc.) and the EGSR 2005 paper. [PDF], [BibTeX], [Slides in PDF].
  94. V. Havran, M. Smyk, G. Krawczyk, K. Myszkowski, H.-P. Seidel: "Interactive System for Dynamic Scene Lighting using Captured Video Environment Maps", in 16th Eurographics Symposium on Rendering, 29 June - 1 July 2005, Konstanz, Germany, pages 31-42. See project webpage for details. [PDF] and [BibTeX].
  95. V. Havran, J. Bittner, R. Herzog, H.-P. Seidel: "Ray Maps for Global Illumination", in 16th Eurographics Symposium on Rendering, 29 June - 1 July 2005, Konstanz, Germany, pages 43-54. [PDF] and [BibTeX]. Also see the Master Thesis by Robert Herzog for further details.
  96. V. Havran, A. Neumann, G. Zotti, W. Purgathofer, H.-P. Seidel: "On Cross-Validation and Resampling of BRDF Data Measurements", at Proceedings of conference SCCG 2005, published by ACM SIGGRAPH, pages 154-161, Budmerice, Slovakia, May 12-14, 2005. [PDF] and [BibTeX].
  97. A. Efremov, V. Havran, H.-P. Seidel: "Robust and Numerically Stable Bezier Clipping Method for Ray Tracing NURBS Surfaces", at Proceedings of conference SCCG 2005, pages 123-131, published by ACM SIGGRAPH, Budmerice, Slovakia, May 12-14, 2005. [PDF] and [BibTeX]. Related Master Thesis by Alexander Efremov with many details on ray tracing NURBS related to the article.

    98. 2004:
  98. K. Dmitriev, V. Havran, H.-P. Seidel: "Faster Ray Tracing with SIMD Shaft Culling", research report, MPI Informatics, [MPI-I-2004-4-006]. [PDF] and [BibTeX]. 13 pages, December 2004.
  99. V. Havran, J. Bittner, H.-P. Seidel: "Ray Maps for Global Illumination", presentation in SIGGRAPH 2004 in Sketches, Los Angeles, USA, 11 August 2004, Room 502A, 13:45-15:30. [PDF], [BibTeX]. The follow-up paper at EGSR 2005 conference.
  100. T. Tawara, K. Myszkowski, K. Dmitriev, V. Havran, C. Damez, H.-P. Seidel: "Exploiting Temporal Coherence in Global Illumination", invited paper in conference SCCG 2004, pages 23-33, Budmerice, Slovakia, April 2004. [PDF], [BibTeX].
  101. P. Kondratieva, V. Havran, H.-P. Seidel: "Effective Use of Procedural Shaders in Animated Scenes", pages 164-172 of LNCS 3039 (Lecture Notes in Computer Science), in CGGM'04 (Workshop on Computer Graphics and Geometric Modelling), Springer Verlag, 2004 [PDF at Springer Verlag Web Site]. The local copy of the paper [PDF] and [BibTeX]. For the copyright for this paper check Springer Verlag.

    102. 2003:
  102. P. Bekaert, P. Slusallek, R. Cools, V. Havran, H.-P. Seidel: "A custom designed density estimation method for light transport", research report, MPI Informatics, [MPI-I-2003-4-004], 28 pages, September 2003. [PDF], [BibTeX].
  103. V. Havran, K. Dmitriev, H.-P. Seidel: "Goniometric Diagram Mapping for Hemisphere", 8 pages, at Eurographics 2003, Short Presentations Session, PDF at EG site, pages 293-300, Granada, Spain, September 2003. Preliminary version of the paper [PDF] and [BibTeX]. The presentation slides in [PDF].
  104. V. Havran, C. Damez, K. Myszkowski, H.-P. Seidel: "An Efficient Spatio-Temporal Architecture for Animation Rendering", presentation in SIGGRAPH 2003 in Sketches and Applications, in sketches and applications on rendering, San Diego, USA, July 2003. See Project webpage web page. Preliminary [PDF] [BibTeX].
  105. V. Havran, C. Damez, K. Myszkowski, H.-P. Seidel: "An Efficient Spatio-Temporal Architecture for Animation Rendering", Eurographics Symposium on Rendering 2003, pages 106-117, 303, Leuven, June 2003. Project Page and presentation slides in [MS Powerpoint 97]. Local copy of the paper [PDF] and [BibTeX].
  106. V. Havran, J. Bittner, H.-P. Seidel: "Exploiting Temporal Coherence in Ray Casted Walkthroughs", in Proceedings of SCCG 2003 conference, Budmerice, Slovakia, published by ACM SIGGRAPH, pages 164--172, April 2003. Preliminary version of the paper [PDF] and [BibTeX]. Presentation slides in [MS Powerpoint 97],
  107. V. Havran, W. Purgathofer: "On Comparing Ray Shooting Algorithms", In journal Computers and Graphics, Volume 27, Issue 4, ISSN 0097-8493, pages 593-604, August 2003. Electronic version of the paper in [PDF] at journal website. Preliminary version in [PDF], [BibTeX].

    108. 2002:
  108. V. Havran: "Mailboxing, yea or nay?", Ray Tracing News, vol. 15, cca 1 page, Oct. 2002. Available from RT News online, Vol. 15, Oct 2002, [BibTeX].
  109. L. Szirmay-Kalos, V. Havran, B. Balazs, L. Szecsi: "On the Efficiency of Ray-shooting Acceleration Schemes", Proceedings of conference SCCG 2002, Budmerice, Slovakia, published by ACM SIGGRAPH, pages 89--98, April 2002. Paper in [PDF] and [BibTeX].
  110. V. Havran and J. Bittner: "On Improving KD-Trees for Ray Shooting", Journal of WSCG, University of West Bohemia, Volume 10, Number 1, pages 209--217, February 2002. [PDF] and [BibTeX].

    111. 2001:
  111. V. Havran: "PhD Study Guide at Department of Computer Science and Engineering", technical report DC-2001-08, script, University Publishing House, 82 pages, June 2001. In Czech (Czech title: "Pruvodce doktorskeho studia na katedre pocitacu K336").
  112. J. Bittner and V. Havran: "Exploiting Coherence in Hierarchical Visibility Algorithms", The Journal of Visualization and Computer Animation, pages 277--286, Volume 12, Number 5, ISSN 1049-8907, December 2001. [ACM Record], [Journal Website], and [PDF] [BibTeX].
  113. J. Bittner and V. Havran: "Exploiting Temporal and Spatial Coherence in Hierarchical Visibility Algorithms", in Proceedings of conference SCCG 2001, Budmerice, Slovakia, pages 213--220, April 2001. Best Paper Award. [PDF] and [BibTeX]. Presentation slides in [PDF].

    114. 2000:
  114. V. Havran: "Heuristic Ray Shooting Algorithms", Ph.D. Thesis, November 2000. [PDF], [PS] and [BibTeX].
  115. V. Havran and W. Purgathofer: "Comparison methodology for ray shooting algorithms", technical report TR-186-2-00-20, Vienna University of Technology, 12 pages, November 2000. [PDF], [PS] and [BibTeX].
  116. V. Havran: "GOLEM rendering system", 2000. GOLEM home page [BibTeX].
  117. V. Havran and J. Bittner: "LCTS: Ray Shooting using Longest Common Traversal Sequences", journal Computer Graphics Forum (Proc. of conference Eurographics '2000), 19(3):C59--C70, Eurographics Association and Blackwell Publishers, August 2000. [Article Online at Wiley], local copy of [PDF] and [BibTeX].
  118. V. Havran, J. Prikryl, and W. Purgathofer: "Statistical Comparison of Ray-Shooting Efficiency Schemes", published as technical report TR-186-2-00-14, Vienna University of Technology, May 2000. [PS], [PDF] and [BibTeX].
  119. V. Havran, L. Dachs, and J. Zara: "VIS-RT: A Visualization System for RT Spatial Data Structures", in Proceedings of WSCG'2000 conference, short communication paper, Pilsen, Czech Republic, pages 28--35, February 2000. [PDF] and [BibTeX]. Some results from the visualization.

    120. 1999:
  120. V. Havran: "A Summary of Octree Ray Traversal Algorithms", in Ray-Tracing News RTNv12n2, December 1999. [BibTeX].
  121. V. Havran and J. Prikryl:"Best Efficiency Scheme", November 1999. BES home page. [BibTeX].
  122. V. Havran and F. Sixta: "Comparison of Hierarchical Grids", in Ray-Tracing News RTNv12n1", July 1999. [BibTeX].
  123. V. Havran: "Analysis of Cache Sensitive Representation for Binary Space Partitioning Trees", in journal Informatica, Vol. 23, No. 2, pages 203--210, ISSN 0350-5596, May 1999. [PDF] and [BibTeX].
  124. V. Havran and J. Bittner: "Rectilinear BSP Trees for Preferred Ray Sets", Proceedings of conference SCCG 99, Budmerice, Slovakia, pages 171-179, April/May 1999. [PDF] and [BibTeX].
  125. V. Havran and J. Bittner: "Constructing Rectilinear BSP Trees for Preferred Ray Sets", in Short Communication Papers of WSCG'99, poster section, pp. 1-2, February 1999. [PDF] and [BibTeX].
  126. V. Havran, J. Bittner, T. Kopal: "Adaptive Data Structures for Visibility Computing", in Electronic proceedings of Workshop'99, Prague, Czech Republic, CTU FEE, February 1999. [PDF] and [BibTeX].

    127. 1998:
  127. V. Havran, T. Kopal, J. Bittner, and J. Zara: "Fast Robust BSP Tree Traversal Algorithm for Ray Tracing", in Journal of Graphics Tools, Vol.2, No. 4, A.K. Peters Ltd., pages 15-23, Dec 1998. [HTML] at journal website, [Sample Code] and [PDF], [BibTeX].
  128. J. Bittner, V. Havran, and P. Slavik: "Hierarchical Visibility Culling with Occlusion Trees", in proceedings of CGI'98, Hannover, Germany, publisher IEEE, New York, pages 207-219, 1998. [PDF] and [BibTeX].
  129. T. Kopal, V. Havran, J. Bittner, and J. Zara: "Directionality in Ray Tracing", in Proceedings of Poster'98, Prague, Czech Republic, 2 pages, IC 24, CTU FEE, May 1998, (2nd International Student Conference on Electrical Engineering). [PDF] and [BibTeX].
  130. V. Havran: "Constructing Surface Area Binary Space Partitioning with Rope Trees for Ray Tracing", in Proceedings of Poster'98, Prague, Czech Republic, pp. 2 pages, IC 15, CTU FEE, May 1998 (2nd International Student Conference on Electrical Engineering). [PDF] and [BibTeX].
  131. V. Havran, J. Bittner, and J. Zara: "Ray Tracing with Rope Trees", Proceedings of conference SCCG 98, Budmerice, Slovakia, pages 130-139, April 1998. [PDF] and [BibTeX].
  132. V. Havran: "Statistically Optimized Traversal Algorithm for BSP trees", in Proceedings of Workshop'98 (A. Strejc, ed.), Prague, Czech Republic, pp. 365-366, CTU-FEE, February 1998. [PDF] and [BibTeX].

    133. 1997:
  133. V. Havran: "Cache Sensitive Representation for the BSP Tree", proceedings of Compugraphics'97 conference, Algarve, Portugal, pages 369-376, December 1997. [PDF] and [BibTeX].
  134. V. Havran: "Spatial Data Structures for Visibility Computation", Tech. Rep. DC-PSR-97-05, CTU FEE Prague, May 1997. Postgraduate Study Report, 34 pages. [PDF] and [BibTeX].
  135. V. Havran and J. Zara: "Evaluation of BSP Properties for Ray Tracing", proceedings of conference SCCG 97, Budmerice, Slovakia, pages 155-162, June 1997. [PDF] and [BibTeX].
  136. V. Havran: "Evaluation of BSP trees for ray-tracing", in Proceedings of Poster'97, Prague, Czech Republic, 2 pages, IC 12, May 1997, (1st International Student Conference on Electrical Engineering). [PDF] and [BibTeX].
  137. V. Havran: "Parallel Ray-tracer on Shared Memory Multiprocessor Machines Connected via Internet", in Proceedings of Workshop'97 (A. Strejc, ed.), (Prague, Czech Republic), pp. 321-322, CTU FEE, January 1997. [PDF] and [BibTeX]. Long version of the paper, 9 pages, in [PDF] [BibTeX].
  138. V. Havran, M. Soch, P. Simek, and P. Tvrdik: "Parallel Merge Sort on Shared Memory Multicomputer", in Proceedings of Workshop'97 (A. Strejc, ed.), Prague, Czech Republic), pp. 287-288, CTU FEE, January 1997. [PDF] and [BibTeX].

    139. 1996:
  139. V. Havran: "Parallel Implementation of Ray Tracing on Shared Memory Architecture", in Poster Section at SOFSEM'96, (Milovy, Czech Republic), November 1996. [PDF] [BibTeX]
  140. V. Havran and J. Zara: "Some Practical Aspects of Ray Tracing on Shared Memory Machine", in Poster Section at Eurographics Workshop on Parallel Rendering (Bristol, UK), 9 pages, August 1996. [PDF] [BibTeX]
  141. V. Havran: "Load Balancing Techniques for Ray-tracer on Shared Memory Machine", in Proceedings of Poster'96 (Prague, Czech Republic), pp. 74-74, CTU-FEE, May 1996. [PDF] [BibTeX]
  142. V. Havran: "Simulation of Real Camera for Rendering", Master thesis, CTU-FEE, Department of Computer Science and Engineering, Prague, Czech Republic, February 1996. [PDF] [BibTeX]

    143. 1995:
  143. V. Havran and J. Zara: "Effective Homogenous Transformation of Large Raster Images", in Poster Section at SOFSEM'95 (Milovy, Czech Republic), November 1995.[PDF] [BibTeX]
  144. V. Havran and J. Zara: "The simulation of the Real Camera for Rendering", in Proceedings of Workshop'95 (Prague, Czech Republic), pp. 183-184, CTU--FEE, January 1995, [PDF] [BibTeX]

This page is maintained by Vlastimil Havran. It was last updated on 2018 November 2.