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Prakhar Amba

Prakhar Amba


Post Doctorant

Laboratoire de Psychologie et Neurocognition
CNRS UMR 5105
UGA
Bâtiment Michel Dubois
cs40700 - 38058 Grenoble Cedex 9 France



Tél. : +33 782922356

prakhar.amba@univ-grenoble-alpes.fr

Post doc at CNRS, working on developing algorithms for digital cameras which allows better color capture, low light vision, spectral signature recovery, etc. Developing proof of concept for our demosaicing and other image processing algorithms (HDR, color correction, eDoF). Modelling human color vision and applying insights to camera algorithms. Used both linear inverse model and Neural Networks for modelling. Studying selection of Color/Spectral Filter Array mosaics, spectral sensitivities for different applications like night vision (NIR), surveillance, autonomous vehicles, etc.

Patent
FR3078852. David Alleysson and Prakhar Amba. "Method for reconstructing a colour image acquired by a sensor covered with a mosaic of colour filters.

Awards
1) Prix de these innovation UGA. 2019
https://edu.univ-grenoble-alpes.fr/le-projet-idex/news-et-medias/actus-recherche/prix-de-these-2019-8-jeunes-docteurs-distingues-804692.htm

2) i-PHD 2019.
https://www.univ-grenoble-alpes.fr/actualites/a-la-une/actualites-recherche/7-laureats-uga-dont-1-grand-prix-au-1er-concours-d-innovation-i-phd-2019-628995.kjsp

3) ITEK Award 2017. For outstanding student publication
https://www.imaging.org/site/IST/Membership/Honors_and_Awards/Itek_Award/IST/Membership/Awards/Itek_Award.aspx

4) 2016 Best Student Paper Award at CIC 24 for "Random Color Filter Arrays are better than Regular ones"

Publications

1) Amba, Prakhar, Jérôme Dias, and David Alleysson. "Random Color Filter Arrays are Better than Regular Ones." Journal of Imaging Science and Technology 60.5 (2016) : 50406-1.

2) Amba, P., Thomas, J. B., & Alleysson, D. (2017). N-LMMSE Demosaicing for Spectral Filter Arrays. Journal of Imaging Science & Technology, 61(4).

3) Amba, P., 2018. Learning methods for digital imaging (Doctoral dissertation).

Talks/Posters/ Conf.

1) Color Filter Arrays imitating the random nature of color arrangement in human cone mosaic. 6th European Workshop on Visual Information Processing (EUVIP). Marseille, France. 25 - 27 October 2016

2) Random Color Filter Arrays are Better than Regular Ones. Norwegian University of Science and Technology, Gjovik. 6th Feb 2017

3) Poster. Random CFAs are better than periodic ones. Lyon, France. GDR BioComp 2016

4) Amba, Prakhar, David Alleysson, and Martial Mermillod. "Demosaicing using dual layer feedforward neural network." Color and Imaging Conference. Vol. 2018. No. 1. Society for Imaging Science and Technology, 2018.

5) Amba, Prakhar, and David Alleysson. "LMMSE Demosaicing for multicolor CFAs." Color and Imaging Conference. Vol. 2018. No. 1. Society for Imaging Science and Technology, 2018.

6) Amba, Prakhar, and David Alleysson. "Spectral image recovery from Spectral Filter Array cameras using LMMSE." Color and Imaging Conference. Vol. 2019. No. 1. Society for Imaging Science and Technology, 2019.

email : prakhar.amba@gmail.com