Publications

Ansiktsigenkänning: Historiskt porträttfotografi och nya metoder
Hast, Anders
In: Stadens ansikten. Porträttfotografi som material, metod och minne 1860–1930. / [ed] Rebecka Lennartsson, Stockholm: Stockholmia förlag, 2026, p. 181-189. Chapter in book, 2026.

Improving Face Image Retrieval in Historical Archives: Fusion of Mirrored Images and Better Consensus Ranking.
Hast, A., Lennartsson, R., Hayen, M.
In: Blanc-Talon, J., Delmas, P., Takahashi, H., Yasuhiro, M. (eds) Advanced Concepts for Intelligent Vision Systems. ACIVS 2025. Lecture Notes in Computer Science, vol 15656. Springer, Cham. pp 134-145. 2026.  pdf.

Stadens ansikten: Historiskt porträttfotografi, ansiktsigenkänning, stordata och mikrohistoria.
R. Lennartsson, A. Hast, M. Hayen.
Digitalisering av kulturarvssamlingar, eds. A. Näslund, P. Snickars, Makadam förlag, Book Chapter, pp. 291–326, 2025.

Rapid label-free identification of seven bacterial species using microfluidics, single-cell time-lapse phase-contrast microscopy, and deep learning-based image and video classification
Hallström, E., Kandavalli, V., Wählby, C., Hast, A.
PLOS ONE, vol. 20, no. 9, 2025. pdf

CombiANT reader: Deep learning-based automatic image processing tool to robustly quantify antibiotic interactions.
Hallström, E., Fatsis-Kavalopoulos, N., Bimpis, M., Wählby, C., Hast, A., & ; Andersson, D. I.
PLOS Digital Health. pp 1-18. 2025. pdf

Exploring Handwritten Document Collections: An EPSC-Based Approach for Feature Extraction and Similarity Analysis.
Anders Hast, Örjan Simonsson.
In the Proceedings of the 21st Conference on Information and Research science Connecting to Digital and Library science. Udine, Italy, February 20-21, 2025. pp. 1-8. pdf.

Analysis of Age Invariant Face Recognition Efficiency using Face Feature Vectors.
Anders Hast, Yijie Zhou, Congting Lai and Ivar Blohm.
ROBOVIS 2024, held in conjunction with ICAART 2024, ICPRAM 2024 and VISIGRAPP 2024. Rome, Italy. pp 47-65, 2024.

J. Imaging, Special Issue “Document Recognition in the Cultural Heritage: Methods and Applications”—Guest Editor Survey. 2023.
A. Hast. A. Amelio.

Age-Invariant Face Recognition using Face Feature Vectors and Embedded Prototype Subspace Classifiers.
A. Hast.
Advanced Concepts for Intelligent Vision Systems. In: Blanc-Talon, J., Delmas, P., Philips, W., Scheunders, P. (eds) Advanced Concepts for Intelligent Vision Systems. ACIVS 2023. Lecture Notes in Computer Science, vol 14124. Springer, Cham. . Presented at ACIVS2023, Kumamoto  Japan, Accepted full paper.  pp 88-99. 2023. pdf

Sex Classification of Face Images using Embedded Prototype Subspace Classifiers.
A. Hast
Proceedings of the 31th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision WSCG 2023, Plzen, Czech Republic, May 15 – 19. Full paper. pp. 43-52. 2023. pdf

Consensus Ranking for Efficient Face Image Retrieval: A Novel Method for Maximising Precision and Recall.
A. Hast.
In: Foresti, G.L., Fusiello, A., Hancock, E. (eds) Image Analysis and Processing – ICIAP 2023. ICIAP 2023. Lecture Notes in Computer Science, vol 14233. Springer, Cham.
Presented at the 22nd International Conference on Image Analysis and Processing. Udine, Italy. pp. 159-170.  2023. pdf

Magnitude of Semicircle Tiles in Fourier-space – A Handcrafted Feature Descriptor for Word Recognition using Embedded Prototype Subspace Classifiers.
A. Hast.
Journal of WSCG, ISSN 1213-6972, Vol.30. No.1-2, DOI: 10.24132/JWSCG.2022.10, Journal, pp. 82-90. 2022, pdf

Paired Image to Image Translation for Strikethrough Removal from Handwritten Words.
R. Heil, E. Vats, A. Hast.
In: Uchida, S., Barney, E., Eglin, V. (eds) Document Analysis Systems. DAS 2022. Lecture Notes in Computer Science, vol 13237. Springer, Cham. pp 309–322. 2022. pdf

The significance of script proportions in the medieval Swedish charter script.
L. Mårtensson, E. Vats  & A. Hast, A
Arkiv för nordisk filologi, 136, Journal, pp.135–162, 2021. https://doi.org/10.63420/anf.v136i.27873

Word Recognition using Embedded Prototype Subspace Classifiers on a new Imbalanced Dataset.
A. Hast, E. Vats.
Journal of WSCG, Vol.29, No.1-2, ISSN 1213-6972, Journal. pp. 39-47. 2021. pdf

Strikethrough Removal from Handwritten Words Using CycleGANs.
Heil R., Vats E., Hast A.
In: Lladós J., Lopresti D., Uchida S. (eds) Document Analysis and Recognition – ICDAR 2021. ICDAR 2021. Lecture Notes in Computer Science, vol 12824. Springer, Cham. https://doi.org/10.1007/978-3-030-86337-1_38. pdf

Shorthand Secrets: Deciphering Astrid Lindgren’s Stenographed Drafts with HTR Methods
R. Heil, M. Nauwerck, A. Hast.Italian Research Conference on Digital Libraries (IRCDL 2021). Proceedings of the 17th Italian Research Conference on Digital Libraries, Padua, Italy, February 18-19. Short paper. pp. 169-177, 2021. pdf

Ensembles and Cascading of Embedded Prototype Subspace Classifiers.
A. Hast, M. Lind.
Journal of WSCG, ISSN 1213-6972, Vol. 28, No. 1-2, Journal. pp. 89-95. 2020. pdf

VIPERC 2020, Visual Pattern Extraction and Recognition for Cultural Heritage Understanding.
A. Amelio, G. Borgefors, A. Hast.
Proceedings of 2nd International Workshop on Visual Pattern Extraction and Recognition for Cultural Heritage Understanding. co-located with 16th Italian Research Conference on Digital Libraries (IRCDL 2020) Bari, Italy, January 29, 2020.

Consensus Ranking for Increasing Mean Average Precision in Keyword Spotting.
A. Hast.
VIPERC 2020, Proceedings of 2nd International Workshop on Visual Pattern Extraction and Recognition for Cultural Heritage Understanding. co-located with 16th Italian Research Conference on Digital Libraries (IRCDL 2020) Bari, Italy, January 29, 2020.
pp. 46-57, 2020. pdf

“The Stenographic Code”,
M. Nauwerck, A. Hast.
Children’s Literature and Digital Humanities, University of Antwerp, Thursday 22 and Friday 23 October 2020.

In Search of the Scribe: Letter Spotting as a Tool for Identifying Scribes in Large Handwritten Text Corpora.
Mårtensson, E. Vats, A. Hast, A. Fornés.
Human IT, Vol. 14, No. 2. Journal. pp. 95-120. 2019. pdf

Face Recognition – A One-Shot Learning Perspective.
S. Chanda, A. Chakrapani Gv, A.Brun, A. Hast, U. Pal and D. Doermann.
15th IEEE Conference on Signal Image Technology and Internet based Systems, Sorrento, Italy, Full paper. pp. 113-119, 2019.

Making Large Collections of Handwritten Material Easily Accessible and Searchable
A. Hast, P. Cullhed, E. Vats, M. Abrate.
Proceedings of the Italian Research Conference on Digital Libraries (IRCDL), Full Paper. pp. 1-11. 2019.

Stereo Visualisation of Historical Aerial Photos – an Useful and Important Aerial Archeology Research Tool.
A. Hast, C. Capurro, D. Nollet, D. Pletinckx, B. Vilas Estevez, M. Carrero Pazos, J. M. Eguileta Franco, A. Marchetti.
Archeologia Aerea 11’ 17, Studi di Aerotopografia Archeologica Rivista [ num. XI.2017 ], Journal. pp. 99-102. 2019.

Finding Logo and Seal in Historical Document Images – An Object Detection based Approach.
S. Chanda, P. K. Prasad, A. Hast, A. Brun, L. Mårtensson and U. Pal.
The 5th Asian Conference on Pattern Recognition (ACPR 2019), Poster 2019.

Training-Free and Segmentation-Free Word Spotting using Feature Matching and Query Expansion.
E.Vats, A. Hast, E Fornés.
The 15th International Conference on Document Analysis and Recognition (ICDAR 2019). pp.1294-1299. 2019.

Embedded Prototype Subspace Classification: A Subspace Learning Framework.
A. Hast, M. Lind, E. Vats.
The 18th International Conference on Computer Analysis of Images and Patterns (CAIP), Salerno, 2-6 September, 2019. pp. 581-592.

Creating an Atlas over Handwritten Script Signs. A. Hast, L. Mårtensson, E. Vats. R. Heil.
Proceedings of Digital Humanities in the Nordic countries (DHN), Extended Abstract. 2019. pdf

Subspace Learning and Classification.
A. Hast, M. Lind, E. Vats.
The Third Swedish Symposium on Deep Learning (SSDL). Poster. Norrköping June 10-11, 2019.

Improved Illumination Correction that Preserves Medium Sized Objects.
A. Hast and A. Marchetti.
IEEE International Conference on Computational Photography. Poster. 2019.

Radial Line Fourier descriptor for historical handwritten text representation.
A. Hast, E. Vats.
Journal of WSCG, ISSN 1213-6972, Vol. 26, No. 1, Journal. pp. 31-40. 2018. pdf

A Fast Fourier Based Feature Descriptor and a Cascade Nearest Neighbour Search with an Efficient Matching Pipeline for Mosaicing of Microscopy Images.
A. Hast, V. A. Sablina, I-M. Sintorn, G. Kylberg.
Pattern Recognition and Image Analysis: Advances in Mathematical Theory and Applications in No 2, Journal. pp. 261–272. 2018. pdf

Learning Surrogate Models of Document Image Quality Metrics for Automated Document Image Processing.
P. Singh, E. Vats, A. Hast.
13th IAPR International Workshop on Document Analysis Systems (DAS), Full Paper. pp. 1-6. 2018.

TexT – Text Extractor Tool for Handwritten Document Transcription and Annotation.
A. Hast, P. Cullhed, E. Vats.
14:th Italian Research Conference on Digital Libraries, IRCDL, Full Paper. pp. 1-12. 2018.

An Intelligent User Interface for Efficient Semi-automatic Transcription of Historical Handwritten Documents.
A. Hast, E. Vats.
ACM Intelligent User Interface (IUI) Conference. pp. 1-2. 2018.

Extracting script features from a large corpus of handwritten documents.
L. Mårtensson, A. Hast, E. Vats.
Proceedings of Digital Humanities in the Nordic countries (DHN), Extended Abstract. 2018.

Panel: GeoMemories uno sguardo nel passato, coordinatore Andrea Marchetti. Anders Hast, La procedura per la visualizzazione stereo di fotografie aeree storiche. Seconda Conferenza italiana di Public History, Pisa, 11-15 Giugno 2018.

Word Spotting in Historical Handwritten Manuscripts using Capsule Networks.R. Heil, E. Vats and A. Hast.
The 14th Bibliotheca Baltica Symposium, Abstract and Poster. 2018.

Exploring the Applicability of Capsule Networks for Word Spotting in Historical Handwritten Manuscripts.
R. Heil, E. Vats and A. Hast.
The Second Swedish Symposium on Deep Learning, Abstract and Presentation. 2018.

Easy Access and Transcription of Medieval Manuscripts.
A. Hast, E. Vats.
2:nd Graduate Conference in Book History, Utrecht Centre for Medieval Studies, Utrecht, Netherlands, 2 February, Abstract. pp. 1. 2018.

A short feature vector for image matching: The Log-Polar Magnitude feature descriptor.
DJ. Matuszewski, A. Hast, C. Wählby C, IM. Sintorn.
PLOS ONE 12(11): e0188496, Journal. pp. 1-12. 2017. pdf

Automatic Document Image Binarization using Bayesian Optimization.
E. Vats, A. Hast, P. Singh.
The 4th International Workshop on Historical Document Imaging and Processing (HIP 2017), in conjunction with ICDAR 2017, Full Paper. 2017 pp. 1-6. pdf

On-the-fly Historical Handwritten Text Annotation.
E. Vats, A. Hast.
1st International Workshop on Human-Document Interaction (HDI 2017), in conjunction with ICDAR 2017, Full Paper. pp. 1-5. 2017. pdf

An Efficient Descriptor based on Radial Line Integration for Fast non Invariant Matching and Registration of Microscopy Images.
A. Hast, G. Kylberg, I-M. Sintorn.
Advanced Concepts for Intelligent Vision Systems (ACIVS2017) , Full Paper. pp. 723-734. 2017.

In search of the Scribe – Letter Spotting as a Tool for Identifying Scribes in Large Handwritten Text Corpora.
L. Mårtensson, A. Hast, A. Fornés, E. Vats.
Proceedings of Digital Humanities in the Nordic countries (DHN), Extended Abstract. 2017. pdf

Historical Handwritten Text Recognition.
E. Vats, A. Hast.
eSSENCE Swedish e-Science Academy, Poster. 2017.

Visual, user-interactive generation of bond networks in 3D particle configurations.
Alfredo Metere, Tomas Oppelstrup, Mikhail Dzugutov, Anders Hast.
arXiv:1503.04449 [physics.comp-ph]. 2017.

A Segmentation-free Handwritten Word Spotting Approach by Relaxed Feature Matching.
A. Hast, A. Fornés.
DAS2016, International Workshop on Document Analysis Systems, Paper. pp. 150-155. 2016.

The Challenges and Advantages with a Parallel Implementation of Feature Matching.
A. Hast, A. Marchetti.
VISAPP, International Conference on Computer Vision Theory and Applications, Short Paper. pp. 101-106. 2016.

Stereo Visualisation of Historical Aerial Photos – an Useful and Important Aerial Archeology Research Tool.
A. Hast, C. Capurro, D. Nollet, D. Pletinckx, B. Vilas Estevez, M. Carrero Pazos, J. M. Eguileta Franco, A. Marchetti.
Second International Conference of Aerial Archaeology. pp. 1-4. 2016.

Digitisation. What’s next? The role of the Curator of Digital Assets in designing digital strategies for heritage institutions.
C. Capurro, A. Hast.
Archaeological Information in the Digital Society, ARKDIS, Extended Abstract. 2016.

A Chronological and Mathematical Overview of Digital Circle Generation Algorithms – Introducing Efficient 4 and 8-Connected Circles.
T. Barrera, A. Hast, E. Bengtsson.
International Journal of Computer Mathematics, Journal. pp. 1-8. 2015.

Automated Classification of Glandular Tissue by Statistical Proximity Sampling.
J. Azar, M. Simonsson, E. Bengtsson, A. Hast.
International Journal of Biomedical Imaging, Journal. pp. 1-11. 2015. pdf

Automatic 3DS Conversion of Historical Aerial Photographs.
F. Malapelle, A. Hast, A. Fusiello, B. Rossi, P. Fragneto, A. Marchetti.
IC3D 2015, International Conference on 3D Imaging., Full Paper. pp. 1-7. 2015.

Swedish eScience Education – a Graduate School in eScience.
A. Hast, M. Hanke, H.O. Karlsson.
11th IEEE International Conference on eScience, Full Paper. pp. 1-5. 2015.

Recreating with photogrammetric techniques a submerged megalithic landscape: the case of the salas reservoir.
B. Estevez, M. Pazos, JM, Franco, A. Hast.
3 Encontro Internacional de Arqueoloxia de Vilalba, Paper. pp. 9-16. 2015.

Teaching OpenGL and Computer Graphics with Programmable Shaders.
J. Nysjö, A. Hast.
SIGRAD2015, Full Paper. pp. 1-3. 2015.

Triangulation Painting.
M. Pihlström, A. Hast, A. Brun.
SIGRAD2015, Full Paper. pp. 1-4. 2015.

Mathematics + Computer Science = True.
A. Hast.
The Fifth International Scientific Colloquium Mathematics and Children, Full Paper. pp. 85-93. 2015.

A Simple and Efficient Feature Descriptor for Fast Matching.
A. Hast, V. Sablina, G. Kylberg, I-M, Sintorn.
WSCG, Full Paper. pp. 135-142. 2015. pdf

Stereo Visualisation of Historical Aerial Photos – a Valuable Digital Heritage Research Tool.
A. Hast, M. Marchetti.
Digital Heritage (Vol 2), Short Paper. pp. 663-666. 2015.

Stereo Visualisation of Historical Aerial Photos as a Valuable Tool for Archeological Research.
A. Hast, M. Marchetti.
Computer Applications and Quantitative Methods in Archaeology, CAA, Poster and Extended Abstract. pp. 1-3. 2015.

Interest Point Detection Based on the Extended Structure Tensor with a Scale Space Parameter.
A. Hast.
VISAPP. pp. 1-8 2015.

Clustering in 2D as a Fast Deterministic Alternative to RANSAC.
A. Hast, G. Kylberg.
The second workshop on Features and Structures (FEAST), colocated with ICML, Poster. pp. 1. 2015.

Improved Illumination Correction that Preserves Medium Sized Objects.
A. Hast, A. Marchetti.
Machine GRAPHICS & VISION, Vol. 23, no.1/2, Journal. pp. 3-20. 2014. pdf

How to Promote Student Creativity and Learning Using Tutorials in Teaching Graphics and Visualisation.
A. Hast.
Journal for Geometry and Graphics, Volume 18 (2014), No. 2, Journal. pp. 239-247. 2014.

Image Segmentation and Identification of Paired Antibodies in Breast Tissue.
J. Azar, M. Simonsson, E. Bengtsson, A. Hast.
Computational and Mathematical Methods in Medicine, vol 2014, July, Journal. pp. 1-11 2014. pdf

Simple filter design for first and second order derivatives by a double filtering approach.
A. Hast.
Pattern Recognition Letters, Vol. 42, no.1 June, Journal. pp. 65-71. 2014. pdf

Towards Automatic Stereo Pair Extraction for 3D Visualisation of Historical Aerial Photographs.
A. Hast, A. Marchetti.
IC3D 2014, International Conference on 3D Imaging., Full Paper. pp. 1-8. 2014.

Invariant Interest Point Detection Based on Variations of the Spinor Tensor.
A. Hast, A. Marchetti.
WSCG 2014, Short Paper. pp. 49-56. 2014. pdf

Robust and Invariant Phase Based Local Feature Matching.
A. Hast.
ICPR 2014. pp. 809-814. 2014.

How to Promote Student Creativity and Learning using Tutorials in Teaching Graphics and Visualisation.
A. Hast.
16th International Conference on Geometry and Graphics, Extended Abstract and Paper. pp. 626-633. 2014.

Multi-instance learning as a useful tool in grading histopathological tissues.
J. Azar, A. Hast, M. Simonsson, E. Bengtsson.
Nordic Symposium on Digital Pathology, Poster and Extended Abstract. 2014.

A Feature Detector based on the Structure Tensor with a Scale Space Dimension.
A. Hast.
SSBA 2014, Paper. pp. 1-6. 2014.

Optimal RANSAC – Towards a Repeatable Algorithm for Finding the Optimal Set.
A. Hast, J. Nysjö, A. Marchetti.
Journal of WSCG, Vol.21, no.1, Journal. pp. 21-30. 2013. pdf

Geomemories – A Platform for Visualizing Historical, Environmental and Geospatial Changes of the Italian Landscape.
M. Abrate, C. Bacciu, A. Hast, A. Marchetti, S. Minutoli, M. Tesconi.
ISPRS International Journal of Geo-Information. Special issue: Geospatial Monitoring and Modelling of Environmental Change, Journal. pp. 432-455. 2013. pdf

Rotation Invariant Feature Matching – Based on Gaussian Filtered Log Polar Transform and Phase Correlation.
A. Hast, A. Marchetti.
ISPA 2013, Full Paper. pp. 100-105. 2013. pdf

Shortest Diagonal Triangulation of Convex Layers.
A. Hast, S. Seipel, P. Jenke.
The IASTED International Conference on Signal Processing, Pattern Recognition and Applications, Full Paper. pp. 424-430. 2013.

An Algorithm for Parallel Calculation of Trigonometric and Exponential Functions.
T. Barrera, A. Hast, E. Bengtsson.
ACM International Conference on Computing Frontiers. pp. 1-4. 2013.

Programming Labs + Online Tutorials = True?.
A. Hast.
TUK, Teknisk-naturvetenskapliga fakultetens Universitetspedagogiska Konferens, Poster. 2013.

An Efficient Preconditioner and a Modified RANSAC for Fast and Robust Feature Matching.
A. Hast, A. Marchetti.
International Conferences in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG’12), Communications Paper. pp. 11-18. 2012. pdf

Putative Match Analysis – A Repeatable Alternative to RANSAC for Matching of Aerial Images.
A. Hast, A. Marchetti.
International Conference on Computer Vision Theory and Applications. pp. 341-344. 2012.

Europar 2010, Parallel Processing Workshops: UCHPC2010.
M. Guarracino, F. Vivien, J. Träff, M. Cannataro, M. Danelutto, A. Hast, F. Perla, A. Knüpfer, B. Di Martino, M. Alexander.
Proceedings, Editor. 2011. pdf

Geomemories – a Spatial-Temporal Atlas of the Italian Landscape.
A. Marchetti, A. Hast, B. Rapisarda, J. Shepherd, M. Tesconi.
International Symposium on Virtual Reality, Archaeology and Cultural Heritage, Short Paper. pp. 41-44. 2011.

Retrospective Illumination Correction of Greyscale Historical Aerial Photos.
A. Hast, A. Marchetti.
International Conference on Image Analysis and Processing. pp. 275-284. 2011.

Multiscale Texture Synthesis – on Different HPC Platforms.
A. Hast.
TAM2011, Poster and Extended Abstract. pp. 1-4. 2011. pdf

Eurographics Posters.
A. Hast, I. Viola.
Eurographics’10, Co Chair, Digital Proceedings. 2010.

3D Stereoscopic Rendering:An Overview of Implementation Issues.
A. Hast.
Game Engine Gems, pp. 123-138. 2010.

On the Quality of Point-cloud Triangulations Based on Convex Hulls.
P. Jenke, A. Hast, S. Seipel.
SIGRAD, Short Paper. pp. 71-74. 2010. pdf

A local Curvature based Lighting Model for Rendering of Snow.
S. Seipel, A. Hast.
IADIS conference: Computer Graphics, Visualization and Image Processing, Short paper. pp. 367-372. 2010.

Multiscale Texture Synthesis and Colourization of Greyscale Textures.
A. Hast, M. Ericsson, S. Seipel.
WSCG’10, Communications Paper. pp. 55-61. 2010. pdf

An HPC implementaion of Multiscale Texture Synthesis for 3D Visualizations of Urban Environments.
A. Hast.
TAM2010, Poster and Extended Abstract. pp. 1-2. 2010.

New Approaches to Increase Shading Efficiency.
A. Hast, A. Romanyuk, H. Lysenko, Y. Lashenko.
Photonics-ODS, Paper. pp. 12-17. 2010.

Vectorized table driven algorithms for double precision elementary functions using Taylor expansions.
T. Barrera, D. Spångberg, A. Hast, E. Bengtsson.
Journal of Applied Mathematics, Vol. II, No. III, pp. 171-188. 2009. pdf

Vectorized table driven algorithms for double precision elementary functions using Taylor expansions.
T. Barrera, D. Spångberg, A. Hast, E. Bengtsson.
In Proceedings: APLIMAT 8:th international conference, Plenary Lecture, paper. pp. 231-246. 2009.

A Heterogeneous Cluster Framework for Computationally Heavy Visualizations.
M. Ericsson, A. Hast, S. Seipel.
IADIS International Conference APPLIED COMPUTING. pp. 1-3. 2009.

Improved Textures for 3D Virtual Reconstruction and Visualization by a Modified Multiscale Texture Synthesis Approach.
A. Hast, M. Ericsson, T. Reiner.
ARCH-3D, Extended Abstract and Paper. pp. 1-6. 2009. pdf

Improved Textures for 3D Virtual Reconstruction and Visualization.
A. Hast.
7:th Eurographics Italian Chapter Conference, Poster. 2009.

Improved Normal Computation by Quaternion Correction.
A. Hast , J. Parus, I. Kolingerová.
Journal of Applied Mathematics, Vol. I, No. II, pp. 217-226. 2008.

A Comparison of Different Approaches to the Setup for Shading Algorithms.
A. Hast, A. Romanyuk, Y. Lyashenko.
Information technologies and computer engineering (International scientific and technical Journal, VNTU), Vol. 1, No. 11., Journal Paper. pp. 202-208. 2008.

Trigonometric Splines.
T. Barrera, A. Hast, E. Bengtsson.
Game Programming Gems, Charles River Media, ed. Scott Jacobs., Book Chapter. pp. 191-198 2008.

An Alternative Model for Shading of Diffuse Light for Rough Materials.
T. Barrera, A. Hast, E. Bengtsson.
Game Programming Gems, Charles River Media, ed. Scott Jacobs., Book Chapter. pp. 373-380. 2008.

Efficient Methods for Fast Shading.
A. Romanyuk, A. Hast, Y. Lyashenko.
Advances in Electrical and Computer Engineering Journal, Vol. 8, No. 22, Journal Paper. pp. 82-85. 2008.

Improved Normal Computation by Quaternion Correction.
A. Hast , J. Parus, I. Kolingerová.
APLIMAT 7:th international conference, Paper. pp. 829-837. 2008.

The Methods of the Fast Shading.
A. Romanyuk, A. Hast, Y. Lyashenko.
9th International Conference on Development and Application Systems, Suceava, Romania, May 22-24., Paper. pp. 175-178. 2008.

Elementary Predicates for Continous Collision Detection.
J. Parus, A. Hast, I. Kolingerová.
ICGG’08, 4-8 August, Dresden Germany., Paper. 2008.

Interactive Visualization of new Electromagnetic Quantities.
S.M. Mohammadi, A. Hast, L.K.S. Daldorff, M. Ericsson, J.E.S. Bergman, B. Thide.
Sigrad, Paper. pp. 71-74. 2008. pdf

Interactivity, Quality and Usability: Three-Dimensional Image Studio for Uppsala.
M. Ericsson, A. Hast, I. Nyström.
Sigrad, Short Paper. pp. 79,80. 2008. pdf

Models that use Logarithmic and Power Functions.
A. Hast, A. Romanyuk, Y. Lyashenko.
IES The Sixth International Conference ‘INTERNET, EDUCATION – SCIENCE’, Vinnytsia, Ukraine, October 7 – 11, Paper. pp. 538-542. 2008.

‘276 equazioni – e solo 55 figure!’.
F. Lazzaroni.
Xlatangente, No 10 July, Popular science interview. pp. 14,15. 2008.

Sigrad 2007.
A. Hast.
Proceedings, Editor. 2007. pdf

Fast Computation of Vertex Normals for Linearly Deforming Meshes.
J. Parus, A. Hast, I. Kolingerová.
Journal of Graphics Tools, vol. 12, no. 4, Journal Paper. pp. 47-58. 2007.

Topology Maps for Anisotropic Shading.
A. Hast.
WSCG’07. pp. 13-16. 2007. pdf

Understanding Rotations and their Applications.
A. Hast.
Proceedings of the 5:th Conference ‘Geometry and Graphics’, Silesian Technical University in Gliwice, Ustron Poland,, Extended Abstract. 2007.

Geometry of Fibers with Varying Topology.
A. Hast.
The Journal of Polish Society for Geometry and Engineering Graphics, Vol. 16, Journal Paper. pp. 5-10. 2006. pdf

Solving Systems of Linear Equations using the Cross Product.
A. Hast.
Game Programming Gems, Charles River Media., Book Chapter. pp. 149-160. 2006.

A Method for Accelerated Computation of Color Intensities for shading of Three-Dimensional Graphics Objects.
A. Romanyuk, A. Hast.
Contemporary Problems of the Computer Science – Algorithms and modeling, editing of Swietlana Lebiediewa and Arkadiusz Liber. Series: monographs and scientific works of Publishing Company of Legnica University of Management, Book Chapter. pp. 213-226. 2006.

Fast Near Phong-Quality Software Shading.
T. Barrera, A. Hast, E. Bengtsson.
WSCG’06, Full Paper. pp. 109-116. 2006. pdf

A Model for Anisotropic Shading of Fibers with varying Topology.
A. Hast.
SCCG’06, Full Paper. pp. 44-50. 2006.

Temporal Face Normal Interpolation.
J. Parus, A. Hast, I. Kolingerová.
Sigrad 2006, Paper. pp. 12-16 2006. pdf

Incremental Spherical Interpolation with Quadratically Varying Angle.
A. Hast, T. Barrera, E. Bengtsson.
Sigrad 2006, Short Paper. pp.36-38. 2006. pdf

Smooth Shading for Soft-Body Animation of Meshes obtained by Topology Merging, using Quaternion Correction.
A. Hast, J. Parus, I. Kolingerova.
ACM SIGGRAPH / Eurographics Symposium on Computer Animation. pp. 3,4. 2006.

Geometry of Fibers with Varying Topology.
A. Hast.
Proceedings of the 9:th Conference ‘Geometry and Computer’, Silesian Technical University in Gliwice, Ustron Poland, Extended Abstract. pp. 25,26. 2006. pdf

Minimal Acceleration Hermite Curves.
T. Barrera, A. Hast, E. Bengtsson.
Game Programming Gems, Charles River Media, ed. Kim Pallister, Book Chapter. pp. 225-231. 2005.

Connected Minimal Acceleration Trigonometric Curves.
T. Barrera, A. Hast, E. Bengtsson.
Sigrad 2005, Paper. pp. 1-5 2005. pdf

A Novel Approach to Compress Reflection Functions Based on PCA.
B. Olsson, A. Hast, A. Ynnerman.
sigrad 2005, Paper. pp. 51-56. 2005. pdf

Shading by Quaternion Interpolation.
A. Hast.
WSCG’05, Short Paper. pp. 53-56. 2005. pdf

An Alternative Model for Real-Time Rendering of Diffuse Light for Rough Materials.
T. Barrera, A. Hast, E. Bengtsson.
SCCG’05 Proceedings II. pp. 27,28. 2005.

Improved Algorithms for Fast Shading and Lighting.
A. Hast.
Uppsala University, PhD Thesis. 2004.

Faster Shading by Equal Angle Interpolation of Vectors.
T. Barrera, A. Hast, E. Bengtsson.
IEEE Transactions on Visualization and Computer Graphics, Journal Paper. pp. 217-223 2004.

Incremental Spherical Linear Interpolation.
T. Barrera, A. Hast, E. Bengtsson.
Sigrad 2004, Paper. pp. 7-10. 2004. pdf

Fast Intensity Distribution Functions for Soft and Hard Edged Spotlights.
A. Hast, T. Barrera, E. Bengtsson.
WSCG’04, Short Paper. pp. 95-99. 2004. pdf

Improved Diffuse Anisotropic Shading.
A. Hast, D. Wesslen, S. Seipel.
Sigrad 2004, Short Paper. pp. 57-58. 2004. pdf

Fast Setup for Bilinear and Biquadratic Interpolation over Triangles.
A. Hast, T. Barrera, E. Bengtsson.
Graphics Programming Methods, Editor Jeff Lander, Charles River Media, Book Chapter. pp. 299-314. 2003.

Antialiasing for Bump Maps and a Fast Normalization Trick.
A. Hast, T. Barrera, E. Bengtsson.
Graphics Programming Methods, Editor Jeff Lander, Charles River Media, Book Chapter. pp. 291-298. 2003.

A Modified Phong-Blinn Light Model for Shadowed Areas.
A. Hast, T. Barrera, E. Bengtsson.
Graphics Programming Methods, Editor Jeff Lander, Charles River Media, Book Chapter. pp. 231-236. 2003.

Fast Specular Highlights by modifying the Phong-Blinn Model.
A. Hast, T. Barrera, E. Bengtsson.
Siggraph 2003, Sketches and applications. 2003. pdf

Shading by Spherical Linear Interpolation using De Moivre’s Formula.
A. Hast, T. Barrera, E. Bengtsson.
WSCG’03, Short Paper. pp. 57-60. 2003. pdf

A Modified Phong-Blinn Light Model for Shadowed Areas.
A. Hast.
Third Conference for Promotion of Research in IT at New Universities and University Colleges in Sweden, short Paper. 2003. pdf

Swedish Universities Prepare Students for Entry Into Industry.
V. Zdravkovic, E. Carling, S. Seipel, A. Hast.
Computer Graphics, newsletter of ACM SIGGAPH. Vol. 36 No. 2, May, article. pp. 27-32. 2002.

Improved Fundamental Algorithms for fast Computer Graphics.
A. Hast.
Uppsala University, Licentiate Thesis. 2002.

Snow Accumulation in Real-time.
H. Haglund, A. Hast.
Sigrad 2002, Paper. pp. 11-15. 2002. pdf

Animation of Water Droplet Flow on Structured Surfaces.
M. Jonsson, A. Hast.
Sigrad 2002, Paper. pp. 17-22. 2002. pdf

Surface Construction with Near Least Square Acceleration based on Vertex Normals on Triangular Meshes.
T. Barrera, A. Hast, E. Bengtsson.
Sigrad 2002, Paper. pp. 43-48. 2002. pdf

Reconstruction Filters for Bump Mapping.
A. Hast, T. Barrera, E. Bengtsson.
Second Conference for Promotion of Research in IT at New Universities and University Colleges in Sweden, Short Paper. pp. 244-256. 2002.

Reconstruction Filters for Bump Mapping.
A. Hast, T. Barrera, E. Bengtsson.
WSCG’02. pp. 9-12. 2002. pdf

Improved Bump Mapping by using Quadratic Vector Interpolation.
A. Hast, T. Barrera, E. Bengtsson.
Eurographics’02. 2002.

Proceedings from the first Seminar on Computer Graphics and Visualization.
E. Carling A. Hast.
Proceedings, Editor. 2001.

Improved Shading Performance by avoiding Vector Normalization.
A. Hast, T. Barrera, E. Bengtsson.
WSCG’01, Short Paper. pp. 1-8. 2001. pdf

Approximated Phong Shading by using the Euler Method.
A. Hast, T. Barrera, E. Bengtsson.
Eurographics01, Short Paper. pp. 43-48. 2001.

Faster Computer Graphics – by Reformulation and Simplification of Mathematical Formulas and Algorithms.
A. Hast, T. Barrera, E. Bengtsson.
IMAGINE2001, Paper. 2001. pdf

Faster Algorithms for Interactive Computer Graphics.
A. Hast, T. Barrera, E. Bengtsson.
Proceedings from the first Seminar on Computer Graphics and Visualization, Working Paper No 19, Working Paper. pp. 8-25. 2001.