• A Colour Appearance Model based on Jzazbz Colour Space 

      Safdar, Muhammad; Hardeberg, Jon Yngve; Kim, Youn Jin; Luo, Ming Ronnier (Journal article; Peer reviewed, 2018)
      The current CIE colour appearance model CIECAM02 and its variant named CAM16 can well predict common colour appearance attributes including lightness, brightness, chroma, colowfulness, saturation, hue angle, and hue ...
    • A sensor-data-based denoising framework for hyperspectral images 

      Deger, Ferdinand; Mansouri, Alamin; Pedersen, Marius; Hardeberg, Jon Yngve; Voisin, Yvon (Journal article; Peer reviewed, 2015)
      Many denoising approaches extend image processing to a hyperspectral cube structure, but do not take into account a sensor model nor the format of the recording. We propose a denoising framework for hyperspectral images ...
    • A Spectral Filter Array Camera for Clinical Monitoring and Diagnosis: Proof of Concept for Skin Oxygenation Imaging 

      Bauer, Jacob Renzo; Bruins, Arnoud A.; Hardeberg, Jon Yngve; Verdaasdonk, Rudolf (Journal article; Peer reviewed, 2019)
      The emerging technology of spectral filter array (SFA) cameras has great potential forclinical applications, due to its unique capability for real time spectral imaging, at a reasonable cost.This makes such cameras ...
    • An Adaptive Combination of Dark and Bright Channel Priors for Single Image Dehazing 

      Whannou De Dravo, Vincent Jacob; El Khoury, Jessica; Thomas, Jean-Baptiste; Mansouri, Alamin; Hardeberg, Jon Yngve (Journal article; Peer reviewed, 2017)
      Dehazing methods based on prior assumptions derived from statistical image properties fail when these properties do not hold. This is most likely to happen when the scene contains large bright areas, such as snow and sky, ...
    • An Evaluation Framework for Spectral Filter Array Cameras to Optimize Skin Diagnosis 

      Bauer, Jacob Renzo; Thomas, Jean-Baptiste; Hardeberg, Jon Yngve; Verdaasdonk, Rudolf M. (Journal article; Peer reviewed, 2019)
      Comparing and selecting an adequate spectral filter array (SFA) camera is application-specific and usually requires extensive prior measurements. An evaluation framework for SFA cameras is proposed and three cameras are ...
    • Analytical Survey of Highlight Detection in Color and Spectral Images 

      Khan, Haris Ahmad; Thomas, Jean-Baptiste; Hardeberg, Jon Yngve (Chapter, 2017)
      Detection of highlights is a prominent issue in computer vision, graphics and image processing. Applications which require object properties measurement or rendering are affected by specular reflection since the models ...
    • Appearance perception of textiles: a tactile and visual texture study 

      Mirjalili, Fereshteh; Hardeberg, Jon Yngve (Peer reviewed; Journal article, 2019)
      Texture analysis and characterization based on human perception has been continuously sought after by psychology and computer vision researchers. However, the fundamental question of how humans truly perceive texture still ...
    • Application of spectral statistics to surface defect detection 

      Deborah, Hilda; Richard, Noel; Hardeberg, Jon Yngve (Journal article; Peer reviewed, 2019)
      The development of a spectral difference-based statistical processing of hyperspectral images is provided in this article. Kullback-Leibler pseudo-divergence function, which was specifically developed for the metrological ...
    • Assessing the Quality of Videoconferencing: from Quality of Service to Quality of Communication 

      Shahid, Mohammed; Abebe, Mekides Assefa; Hardeberg, Jon Yngve (Journal article; Peer reviewed, 2018)
      Various approaches for the assessment of quality of experience for video conferencing exist that try to quantify the level of satisfaction of the user. In order for videoconferencing to really succeed as a substitute of ...
    • Assessment of two fast multispectral systems for imaging of a cultural heritage artifact- a Russian icon 

      Shrestha, Raju; Hardeberg, Jon Yngve (Chapter, 2019)
      As a part of the study of spectral object documentation in cultural heritage, performances of different spectral imaging systems from various institutions and research laboratories were assessed in a Round Robin Test. This ...
    • Assessment Protocols and Comparison of Ordering Relations for Spectral Image Processing 

      Deborah, Hilda; Richard, Noël; Hardeberg, Jon Yngve; Fernandez Maloigne, Christine (Journal article; Peer reviewed, 2018)
      Recent developments in hyperspectral sensors allow us to obtain high spectral and spatial resolutions that are close to the optical and physical structures of acquired surfaces. Consequently, hyperspectral imaging is used ...
    • Automatic Redeye Correction Algorithm with Multilevel Eye Confirmation 

      George, Sony; Hardeberg, Jon Yngve; George, Tomson G.; Nampoori, V. P. N. (Journal article; Peer reviewed, 2010)
      Redeye is a well-known problem in portrait photography. This effect is caused by the light entering the subject's eye through the pupil and reflection from the retina back to the imaging sensor. Many of the existing redeye ...
    • Behavioral Investigation of Visual Appearance Assessment 

      Gigilashvili, Davit; Thomas, Jean-Baptiste; Hardeberg, Jon Yngve; Pedersen, Marius (Journal article; Peer reviewed, 2018)
      The way people judge, assess and express appearance they perceive can dramatically vary from person to person. The objective of this study is to identify the research hypotheses and outline directions for the future work ...
    • Blurring Impairs Translucency Perception 

      Gigilashvili, Davit; Pedersen, Marius; Hardeberg, Jon Yngve (Journal article; Peer reviewed, 2018)
      Translucency and factors impacting its perception is not yet fully understood. Various studies have examined the correlation between physical material properties and perceived translucency. Furthermore, the concept of ...
    • Caustics and Translucency Perception 

      Gigilashvili, Davit; Dubouchet, Lucas; Hardeberg, Jon Yngve; Pedersen, Marius (Peer reviewed; Journal article, 2020)
      Caustics projected onto the surface carry very interesting information regarding the material they are cast by. It has been observed in previous studies that caustics could be a widely used cue for translucency assessment ...
    • Characterizing the response of charge-couple device digital color cameras 

      Slavkovikj, Viktor; Hardeberg, Jon Yngve; Eichhorn, Alexander (Journal article; Peer reviewed, 2012)
      The advance and rapid development of electronic imaging technology has lead the way to production of imaging sensors capable of acquiring good quality digital images with a high resolution. At the same time the cost and ...
    • Color and Quality Enhancement of Videoconferencing Whiteboards 

      Duque, Carlos Andrés Arango; Abebe, Mekides Assefa; Shahid, Mohammed; Hardeberg, Jon Yngve (Journal article; Peer reviewed, 2018)
      Whiteboards are commonly used as a medium of instant illustration of ideas during several activities including presentations, lectures, meetings, and related others through videoconferencing systems. However, the acquisition ...
    • Colour and spectral simulation of textile samples onto paper: a feasibility study 

      Slavuj, Radovan; Marijanovic, Kristina; Hardeberg, Jon Yngve (Peer reviewed, 2014)
      This study has investigated how the growing technology of multichannel printing and the area of spectral printing in the graphic arts could help the textile industry to communicate accurate colour. In order to reduce the ...
    • Comparison of eye tracking devices used on printed images 

      Komínková, Barbora; Pedersen, Marius; Hardeberg, Jon Yngve; Kaplanová, Marie (Proceedings of SPIE;6806, Journal article; Peer reviewed, 2008)
      Eye tracking as a quantitative method for collecting eye movement data, requires the accurate knowledge of the eye position, where eye movements can provide indirect evidence about what the subject sees. In this study two ...
    • Comparison of Ink Classification Capabilities of Classic Hyperspectral Similarity Features 

      Melit Devassy, Binu; George, Sony; Hardeberg, Jon Yngve (Peer reviewed; Journal article, 2019)
      Ink classification is an active topic in historic and forensic document analysis. In this work, we compared the ink classification capabilities of five commonly used and wellproven similarity measures for classification ...