Person

Dragos Constantin

This person is no longer with EPFL

Related publications (12)

Multichromatic calibration method and device

A Multichromatic Calibration (MC) method of at least a spectral sensor which is one of a list comprising at least a spectrometer, a multispectral sensor, a hyperspectral sensor, a spectral camera, a color camera. The method comprises a. generating a plural ...

2019

Miniature hyperspectral systems

Dragos Constantin

Spectroscopy methods have been used for decades to obtain information about various materials, ranging from galaxies billions of light years from earth, to Petri dishes containing rich bacteria cultures. From spectrometers in chemical labs to spectral came ...

EPFL2017

Compact multifunctional system for imaging spectroscopy

Yosef Akhtman, Dragos Constantin

A method for obtaining spectral imaging data comprises at least the steps of receiving a sample set of data generated by sampling a spectral property of an image of an object in a spatial basis, wherein the sampling of the spectral property of the image of ...

2016

Investigation of heavy metals distribution in suspended matter and macrophytes of the Selenga river delta using airborne hyperspectral remote sensing

Bertrand Merminod, Natacha Tofield-Pasche, Martin Rehak, Yosef Akhtman, Dragos Constantin, Galina Shinkareva, Mikhail Tarasov

The Leman-Baikal project is an international Swiss-Russian research initiative in the fields of physical limnology, geochemistry and hydrology of aquatic geosystems. The main methodological principle of the project is constituted by simultaneous collection ...

2015

Hyperspectral remote sensing of crop properties with Unmanned Aerial Vehicles

Martin Rehak, Yosef Akhtman, Dragos Constantin

We present a case study conducted over the Field Phenotyping Platform (FIP) at the ETH Zürich research station for plant sciences at Eschikon, Lindau, as collaboration between EPFL TOPO laboratory, Gamaya company and the ETHZ Crop Science Laboratory. The a ...

2015

A new smoothness based strategy for semi-supervised atmospheric correction: application to the Léman-Baïkal campaign

Bertrand Merminod, Manuel Simon Paul Cubero-Castan, Yosef Akhtman, Dragos Constantin, Vincent Maurice Nouchi, Kevin Sylvain Barbieux

The estimation of reflectance from hyperspectral data, a process called atmospheric correction, is a critical first step. Most of the methods need measurements of ground reflectances or atmosphere. When no information is available, unsupervised methods as ...

2015

UAV based multispectral imaging over a lagoon with corals in Reunion Island

Martin Rehak, Yosef Akhtman, Dragos Constantin, Harold Gabriel Eugène Justin Clenet

A UAV-based hyperspectral survey was carried out in September 2014 over the fringing reef of l’Ermitage, Saint Gilles, Reunion Island. This site is of particular interest because it shows signs of major erosion and is subject to sudden flooding occuring du ...

2015

Télédétection pour l'agriculture de précision par caméra hyperspectrale miniature

Bertrand Merminod, Manuel Simon Paul Cubero-Castan, Yosef Akhtman, Dragos Constantin

Un nouveau type de caméra hyperspectrale permet de miniaturiser le système d'acquisition de données, qui peut être installé sur un drone de taille modeste. Dès lors, cette technologie devient accessible au grand public pour de nombreuses applications telle ...

2015

Detection of crop properties by means of hyperspectral remote sensing from a micro UAV

Martin Rehak, Yosef Akhtman, Dragos Constantin

Aerial hyperspectral remote sensing technologies provide effective methods for the exploration and study of plant and crop properties. In this study a custom made hexacopter was equipped with a small scale hyperspectral imaging (HSI) camera capable of meas ...

Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V2015

Leman-Baikal: Remote sensing of lakes using an ultralight plane

Ulrich Lemmin, Damien Bouffard, Bertrand Merminod, Martin Rehak, Yosef Akhtman, Dragos Constantin, Vincent Maurice Nouchi, Galina Shinkareva

The Leman-Baikal project constitutes an international Swiss-Russian collaborative research initiative in the field of physical limnology. The three-year framework involves the development and deployment of a novel multispectral and hyperspectral remote sen ...

2014

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