IMAGE & RADIOMETRY

THEIA Centre for Scientific Expertise (SEC) IN Image & Radiometry brings together a network of laboratories working on image (including 3D) and signal processing for continental surfaces on a national and international scale.

The aim is to develop and propose innovative methods to offer products and services tailored to the challenges and needs of scientific users.

  • Areas of expertise (4)
  • Data & Products (10)
  • Posts (27)
  • Pages (1)

Publications

Welcome to Sentinel-2C, but why not keep Sentinel-2A operational too?

WASP | processor synthesizing several MAJA level 2A optical images into a single cloud-free image

The Weighted Average Synthesis Processor (WASP) is designed to provide monthly syntheses of Sentinel-2 surface reflectance products over land.

Softwares & algorithmes

MAJA | Atmospheric Correction processor designed to produce land surface reflectances (Level 2A) from orthorectified Top-of-Atmospher satellite imagery

Publications

clASpy_T : a 3D point cloud classification tool for estuary monitoring

Products

Sentinel-2 surface albedo

Calcul de hauteur de toits avec DSM-OPT

DSM-OPT | Digital Surface Modeling using Pleiades Stereo/Tri-Stereo Imagery

Variables & products

3D Data

Softwares & algorithmes

cLASpy_T | Tools for classification of LAS file with python and machine learning algorithms’ or classification LAS python Tools.

cLASpy_T classifies 3D point clouds using machine learning. The software is particularly well suited to monitoring coastal environments.

Publications

Two THEIA LiDAR tools for forest monitoring

Softwares & algorithmes

lidarHD | an R package to manage and download HD lidar files

Softwares & algorithmes

lidaRtRee | an R package providing forest analysis tools

lidaRtRee is an R package that provides functions for forest analysis using airborne laser scanning (LiDAR remote sensing) data:

Albédo Sentinel 2 THEIA pur l'Île-de-France, juin 2022

Publications

Measuring the albedo of mainland France from Sentinel-2

Search