• Energy balance in Spectral Filter Array camera design 

      Lapray, Pierre-Jean; Thomas, Jean-Baptiste; Gouton, Pierre; Ruichek, Yassine (Journal article; Peer reviewed, 2017)
      Background Multispectral imaging permits to capture more spectral information on object surface properties than color imaging. This is useful for machine vision applications. Transmittance spectral filter arrays combined ...
    • Extraction and fusion of spectral parameters for face recognition 

      Boisier, B.; Billiot, B.; Abdessalem, Z.; Gouton, Pierre; Hardeberg, Jon Yngve (Proceedings of SPIE;7877, Journal article; Peer reviewed, 2011)
      Many methods have been developed in image processing for face recognition, especially in recent years with the increase of biometric technologies. However, most of these techniques are used on grayscale images acquired in ...
    • Filter array based spectral imaging : Demosaicking and design considerations 

      Wang, Xingbo (Doctoral thesis at NTNU;2016;, Doctoral thesis, 2016)
      Spectral imaging apparatus in current use are often cumbersome, costly and slow in operation, which becomes a major obstacle to extensive use of spectral imaging in several application areas. In recent years, the technical ...
    • High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras 

      Lapray, Pierre-Jean; Thomas, Jean-Baptiste; Gouton, Pierre (Journal article; Peer reviewed, 2017)
      Spectral filter arrays imaging exhibits a strong similarity with color filter arrays. This permits us to embed this technology in practical vision systems with little adaptation of the existing solutions. In this communication, ...
    • An inverse display color characterization model based on an optimized geometrical structure 

      Thomas, Jean-Baptiste; Colantoni, Philippe; Hardeberg, Jon Yngve; Foucherot, Irene; Gouton, Pierre (Proceedings of SPIE;6807, Journal article; Peer reviewed, 2008)
      We have defined an inverse model for colorimetric characterization of additive displays. It is based on an optimized three-dimensional tetrahedral structure. In order to minimize the number of measurements, the structure ...
    • Multispectral filter arrays: Recent advances and practical implementation 

      Lapray, Pierre-Jean; Wang, Xingbo; Thomas, Jean-Baptiste; Gouton, Pierre (Journal article; Peer reviewed, 2014)
      Thanks to some technical progress in interferencefilter design based on different technologies, we can finally successfully implement the concept of multispectral filter array-based sensors. This article provides the ...
    • Multispectral imaging: narrow or wide band filters? 

      Wang, Xingbo; Thomas, Jean-Baptiste; Hardeberg, Jon Yngve; Gouton, Pierre (Journal article; Peer reviewed, 2014)
      In every aspect, spectral characteristics of filters play an important role in an image acquisition system. For a colorimetric system, traditionally, it is believed that narrow-band filters give rise to higher accuracy ...
    • Real-time people counting system using a single video camera 

      Lefloch, Damien; Cheikh, Faouzi Alaya; Hardeberg, Jon Yngve; Gouton, Pierre; Picot-Clemente, Romain (Proceedings of SPIE;6811, Journal article; Peer reviewed, 2008)
      There is growing interest in video-based solutions for people monitoring and counting in business and security applications. Compared to classic sensor-based solutions the video-based ones allow for more versatile ...