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  1. Employees

Språkvelger

Norsk

Ali Alsam

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Ali Alsam

Associate Professor
Department of Computer Science

ali.alsam@ntnu.no
+4773558988 IT-bygget, sydfløy, 242, Gløshaugen, sem sælands vei 7
Publications Teaching Outreach

Publications

  • Chronological
  • By category
  • All publications registered in NVA

2022

  • Alsam, Ali; Rivertz, Hans Jakob. (2022) Three dimensional surface preserving smoothing.
    Academic chapter/article/Conference paper

2021

  • Alsam, Ali; Rivertz, Hans. (2021) Long range diffusion with control of the directional differences.
    Academic chapter/article/Conference paper
  • Wang, Zi; Alsam, Ali; Morrison, Donn; Strand, Knut Arne. (2021) Toward automatic feedback of coding style for programming courses.
    Academic chapter/article/Conference paper
  • Wang, Zi; Alsam, Ali; Morrison, Donn; Strand, Knut Arne. (2021) On the Naming Recommendations Derived from Expert Python Code.
    Academic chapter/article/Conference paper

2019

  • Alsam, Ali; Rivertz, Hans Jakob. (2019) Improved color edge preserving smoothing. NIKT: Norsk IKT-konferanse for forskning og utdanning
    Academic article
  • Rivertz, Hans Jakob; Alsam, Ali. (2019) Colour to Grey by Maximum Signed Gradient.
    Academic chapter/article/Conference paper

2018

  • Alsam, Ali; Rivertz, Hans Jakob. (2018) A mathematical approach to best luminance maps. Optical Society of America. Journal A: Optics, Image Science, and Vision (JOSA A)
    Academic article
  • Farup, Ivar; Pedersen, Marius; Alsam, Ali. (2018) Colour-to-greyscale image conversion by linear anisotropic diffusion of perceptual colour metrics.
    Academic chapter/article/Conference paper

2015

  • Alsam, Ali; Rivertz, Hans Jakob. (2015) Fast scale space image decomposition.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar; Rivertz, Hans Jakob. (2015) Iterative sharpening for image contrast enhancement.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2015) Parameterless edge preserving colour image diffusion.
    Chapter

2014

  • Rivertz, Hans Jakob; Alsam, Ali. (2014) Drawing Parrots with Charcoal.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Sharma, Puneet. (2014) Robust metric for the evaluation of visual saliency algorithms. Optical Society of America. Journal A: Optics, Image Science, and Vision (JOSA A)
    Academic article
  • Alsam, Ali; Sharma, Puneet; Wrålsen, Anette. (2014) Calculating Saliency Using the Dihedral Group D4. Journal of Imaging Science and Technology
    Academic article

2013

  • Alsam, Ali; Sharma, Puneet; Wrålsen, Anette. (2013) Asymmetry as a Measure of Visual Saliency.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Sharma, Puneet. (2013) Validating the Visual Saliency Model.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2013) Color Edge Preserving Smoothing.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob; Sharma, Puneet. (2013) What the eye did not see--a fusion approach to image coding. International journal on artificial intelligence tools
    Academic article

2012

  • Alsam, Ali; Rivertz, Hans Jakob. (2012) Algebraic color to grayscale.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar. (2012) Spatial Colour Gamut Mapping by Orthogonal Projection of Gradients onto Constant Hue Lines.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob; Sharma, Puneet. (2012) What the Eye Did Not See – A Fusion Approach to Image Coding.
    Academic chapter/article/Conference paper
  • Sharma, Puneet; Alsam, Ali. (2012) ESTIMATING THE DEPTH IN THREE-DIMENSIONAL VIRTUAL ENVIRONMENT WITH FEEDBACK.
    Academic chapter/article/Conference paper
  • Sharma, Puneet; Alsam, Ali. (2012) ESTIMATING THE DEPTH UNCERTAINTY IN THREE-DIMENSIONAL VIRTUAL ENVIRONMENT.
    Academic chapter/article/Conference paper

2011

  • Drew, Mark; Alsam, Ali; Madooei, Ali; Brill, Michael H.. (2011) Fast Colour Vesselness.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar. (2011) Spatial Colour Gamut Mapping by Means of Anisotropic Diffusion.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Sharma, Puneet. (2011) Analysis of eye fixations data.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar. (2011) Spatial Colour Gamut Mapping by Means of Anisotropic Diffusion. Lecture Notes in Computer Science (LNCS)
    Academic article
  • Alsam, Ali; Rivertz, Hans Jakob. (2011) Fast Edge Preserving Smoothing Algorithm.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2011) Constrained Gradient Integration for Improved Image Contrast.
    Academic chapter/article/Conference paper

2010

  • Alsam, Ali. (2010) Multi Exposure Image Fusion.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2010) Colour Constant Image Sharpening.
    Academic chapter/article/Conference paper

2009

  • Alsam, Ali; Farup, Ivar. (2009) Colour Gamut Mapping as a Constrained Variational Problem.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2009) Contrast Enhancing Colour to Grey.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2009) Fast Multispectral2Gray. Journal of Imaging Science and Technology
    Academic article
  • Alsam, Ali; Drew, Mark S.. (2009) Fast Multispectral2Gray. Journal of Imaging Science And Technology
    Academic article

2008

  • Alsam, Ali; Finlayson, Graham. (2008) Integer Programming for Optimal Reduction of Calibration Targets. Color Research and Application
    Academic article

2007

  • Alsam, Ali; Finlayson, Graham. (2007) Metamer Sets without Spectral Calibration. Journal of the Optical Society of America A
    Academic article
  • Alsam, Ali; Lenz, Reiner. (2007) Calibrating Color Cameras using Metameric Blacks. Journal of the Optical Society of America A
    Academic article

2006

  • Connah, David; Alsam, Ali; Hardeberg, Jon Yngve. (2006) Multispectral imaging: How many sensors do we need?. Journal of Imaging Science And Technology
    Academic article
  • Hardeberg, Jon Yngve; Nussbaum, Peter; Alsam, Ali; Skarsbø, Sven Erik; Farup, Ivar. (2006) Proceedings from Gjøvik Color Imaging Symposium 2005. Høgskolen i Gjøvik Høgskolen i Gjøvik
    Report
  • Finlayson, Graham; Hordley, Steve; Alsam, Ali. (2006) Investigating von Kries-like adaptation using local linear models. Color Research and Application
    Academic article
  • Alsam, Ali; Kolås, Øyvind. (2006) Grey Colour Sharpening.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Lenz, Reiner. (2006) Calibrating Color Cameras Using Metameric Blacks.
    Academic chapter/article/Conference paper
  • Ouglov, Andrei; Alsam, Ali; Hjelsvold, Rune. (2006) Gamut Intersection for Image Retrieval.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Finlayson, Graham. (2006) Reducing the Number of Calibration Surfaces.
    Academic chapter/article/Conference paper

2005

  • Alsam, Ali; Finlayson, Graham. (2005) Metamer Sets Without Spectral Calibration.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Hardeberg, Jon Yngve. (2005) Optimal Convex reduction of Calibration Targets.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Hardeberg, Jon Yngve. (2005) Metamer Set Based Measures of Goodness for Colour Cameras.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Hardeberg, Jon Yngve. (2005) Smoothing Jagged Spectra for Accurate Spectral Sensitivities Recovery.
    Academic chapter/article/Conference paper

Journal publications

  • Alsam, Ali; Rivertz, Hans Jakob. (2019) Improved color edge preserving smoothing. NIKT: Norsk IKT-konferanse for forskning og utdanning
    Academic article
  • Alsam, Ali; Rivertz, Hans Jakob. (2018) A mathematical approach to best luminance maps. Optical Society of America. Journal A: Optics, Image Science, and Vision (JOSA A)
    Academic article
  • Alsam, Ali; Sharma, Puneet. (2014) Robust metric for the evaluation of visual saliency algorithms. Optical Society of America. Journal A: Optics, Image Science, and Vision (JOSA A)
    Academic article
  • Alsam, Ali; Sharma, Puneet; Wrålsen, Anette. (2014) Calculating Saliency Using the Dihedral Group D4. Journal of Imaging Science and Technology
    Academic article
  • Alsam, Ali; Rivertz, Hans Jakob; Sharma, Puneet. (2013) What the eye did not see--a fusion approach to image coding. International journal on artificial intelligence tools
    Academic article
  • Alsam, Ali; Farup, Ivar. (2011) Spatial Colour Gamut Mapping by Means of Anisotropic Diffusion. Lecture Notes in Computer Science (LNCS)
    Academic article
  • Alsam, Ali. (2009) Fast Multispectral2Gray. Journal of Imaging Science and Technology
    Academic article
  • Alsam, Ali; Drew, Mark S.. (2009) Fast Multispectral2Gray. Journal of Imaging Science And Technology
    Academic article
  • Alsam, Ali; Finlayson, Graham. (2008) Integer Programming for Optimal Reduction of Calibration Targets. Color Research and Application
    Academic article
  • Alsam, Ali; Finlayson, Graham. (2007) Metamer Sets without Spectral Calibration. Journal of the Optical Society of America A
    Academic article
  • Alsam, Ali; Lenz, Reiner. (2007) Calibrating Color Cameras using Metameric Blacks. Journal of the Optical Society of America A
    Academic article
  • Connah, David; Alsam, Ali; Hardeberg, Jon Yngve. (2006) Multispectral imaging: How many sensors do we need?. Journal of Imaging Science And Technology
    Academic article
  • Finlayson, Graham; Hordley, Steve; Alsam, Ali. (2006) Investigating von Kries-like adaptation using local linear models. Color Research and Application
    Academic article

Part of book/report

  • Alsam, Ali; Rivertz, Hans Jakob. (2022) Three dimensional surface preserving smoothing.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans. (2021) Long range diffusion with control of the directional differences.
    Academic chapter/article/Conference paper
  • Wang, Zi; Alsam, Ali; Morrison, Donn; Strand, Knut Arne. (2021) Toward automatic feedback of coding style for programming courses.
    Academic chapter/article/Conference paper
  • Wang, Zi; Alsam, Ali; Morrison, Donn; Strand, Knut Arne. (2021) On the Naming Recommendations Derived from Expert Python Code.
    Academic chapter/article/Conference paper
  • Rivertz, Hans Jakob; Alsam, Ali. (2019) Colour to Grey by Maximum Signed Gradient.
    Academic chapter/article/Conference paper
  • Farup, Ivar; Pedersen, Marius; Alsam, Ali. (2018) Colour-to-greyscale image conversion by linear anisotropic diffusion of perceptual colour metrics.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2015) Fast scale space image decomposition.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar; Rivertz, Hans Jakob. (2015) Iterative sharpening for image contrast enhancement.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2015) Parameterless edge preserving colour image diffusion.
    Chapter
  • Rivertz, Hans Jakob; Alsam, Ali. (2014) Drawing Parrots with Charcoal.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Sharma, Puneet; Wrålsen, Anette. (2013) Asymmetry as a Measure of Visual Saliency.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Sharma, Puneet. (2013) Validating the Visual Saliency Model.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2013) Color Edge Preserving Smoothing.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2012) Algebraic color to grayscale.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar. (2012) Spatial Colour Gamut Mapping by Orthogonal Projection of Gradients onto Constant Hue Lines.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob; Sharma, Puneet. (2012) What the Eye Did Not See – A Fusion Approach to Image Coding.
    Academic chapter/article/Conference paper
  • Sharma, Puneet; Alsam, Ali. (2012) ESTIMATING THE DEPTH IN THREE-DIMENSIONAL VIRTUAL ENVIRONMENT WITH FEEDBACK.
    Academic chapter/article/Conference paper
  • Sharma, Puneet; Alsam, Ali. (2012) ESTIMATING THE DEPTH UNCERTAINTY IN THREE-DIMENSIONAL VIRTUAL ENVIRONMENT.
    Academic chapter/article/Conference paper
  • Drew, Mark; Alsam, Ali; Madooei, Ali; Brill, Michael H.. (2011) Fast Colour Vesselness.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar. (2011) Spatial Colour Gamut Mapping by Means of Anisotropic Diffusion.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Sharma, Puneet. (2011) Analysis of eye fixations data.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2011) Fast Edge Preserving Smoothing Algorithm.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Rivertz, Hans Jakob. (2011) Constrained Gradient Integration for Improved Image Contrast.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2010) Multi Exposure Image Fusion.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2010) Colour Constant Image Sharpening.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Farup, Ivar. (2009) Colour Gamut Mapping as a Constrained Variational Problem.
    Academic chapter/article/Conference paper
  • Alsam, Ali. (2009) Contrast Enhancing Colour to Grey.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Kolås, Øyvind. (2006) Grey Colour Sharpening.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Lenz, Reiner. (2006) Calibrating Color Cameras Using Metameric Blacks.
    Academic chapter/article/Conference paper
  • Ouglov, Andrei; Alsam, Ali; Hjelsvold, Rune. (2006) Gamut Intersection for Image Retrieval.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Finlayson, Graham. (2006) Reducing the Number of Calibration Surfaces.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Finlayson, Graham. (2005) Metamer Sets Without Spectral Calibration.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Hardeberg, Jon Yngve. (2005) Optimal Convex reduction of Calibration Targets.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Hardeberg, Jon Yngve. (2005) Metamer Set Based Measures of Goodness for Colour Cameras.
    Academic chapter/article/Conference paper
  • Alsam, Ali; Hardeberg, Jon Yngve. (2005) Smoothing Jagged Spectra for Accurate Spectral Sensitivities Recovery.
    Academic chapter/article/Conference paper

Report

  • Hardeberg, Jon Yngve; Nussbaum, Peter; Alsam, Ali; Skarsbø, Sven Erik; Farup, Ivar. (2006) Proceedings from Gjøvik Color Imaging Symposium 2005. Høgskolen i Gjøvik Høgskolen i Gjøvik
    Report

Teaching

Courses

  • IT6203 - Introductory Programming for Teachers
  • TDMA4003 - Scientific Methods
  • IT6209 - Python for teachers: Applied programming
  • TDT4127 - Programming and Numerics

Outreach

2015

  • Academic lecture
    Alsam, Ali. (2015) Parameterless edge preserving colour image diffusion. Systems, Signals and Image Processing (IWSSIP) , London 2015-09-10 - 2015-09-12

2011

  • Academic lecture
    Alsam, Ali; Rivertz, Hans Jakob. (2011) Constrained gradient integration for improved image contrast. Signal and Image Processing (SIP 2011) , Dallas 2011-12-14 - 2011-12-16
  • Academic lecture
    Alsam, Ali; Rivertz, Hans Jakob. (2011) Fast edge preserving smoothing algorithm. Signal and Image Processing - SIP 2011 , Dallas 2011-12-14 - 2011-12-16

2010

  • Academic lecture
    Alsam, Ali. (2010) Multi Exposure Image Fusion. Norsk informatikkonferanse (NIK) , Gjøvik 2010-11-22 - 2010-11-24
  • Poster
    Alsam, Ali. (2010) Colour Constant Image Sharpening. icpr 20th International Conference on Pattern Recognition , Istanbul, Turkey 2010-08-23 - 2010-08-23

2005

  • Academic lecture
    Alsam, Ali; Hardeberg, Jon Yngve. (2005) Optimal Convex reduction of Calibration Targets. In Color Imaging: Processing, Hardcopy, and Applications X SPIE Proceedings 5667 , USA San Jose 2005-01-16 - 2005-01-20
  • Academic lecture
    Alsam, Ali; Gerhardt, Jérémie; Hardeberg, Jon Yngve. (2005) Inversion of the spectral Neugebauer printer model. International Colour Association, Granada, Spain , Granada, Spain 2005-05-08 - 2005-05-13
  • Academic lecture
    Alsam, Ali; Finlayson, Graham. (2005) Optimal Reduction of Calibration Charts by Integer Programming. Proceedings of the 10th Congress of the International Colour Association , Granada, Spain 2005-05-08 - 2005-05-13
  • Academic lecture
    Alsam, Ali; Connah, David. (2005) Recovering Natural Reflectances with Convexity. Proceedings of the 10th Congress of the International Colour Association , Granada, Spain 2005-05-08 - 2005-05-13

2004

  • Academic lecture
    Alsam, Ali; Hardeberg, Jon Yngve. (2004) Metamer Set Based Measures of Goodness for Colour Cameras. International Conference on Computer Vision and Graphics , Warsaw, Poland 2004-09-22 - 2004-09-22
  • Academic lecture
    Alsam, Ali; Finlayson, Graham. (2004) Estimating the bandlimits of an unknown sensor. Twelfth Color Imaging Conference : Color Science and Engineering Systems Technologies, Applications , Scottsdale, Arizona 2004-11-09 - 2004-11-09
  • Academic lecture
    Alsam, Ali; Hardeberg, Jon Yngve. (2004) Optimal colorant design for spectral colour reproduction. Twelfth Color Imaging Conference: Color Science and Engineering Systems, Technologies, Applications , Scottsdale, Arizona 2004-11-09 - 2004-11-09
  • Academic lecture
    Connah, David; Alsam, Ali; Hardeberg, Jon Yngve. (2004) Multispectral imaging: How many sensors do we need?. Twelfth Color Imaging Conference: Color Science and Engineering Systems, Technologies, Applications , Scottsdale, Arizona 2004-11-09 - 2004-11-09

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