Guido Lemoine's research while affiliated with The Joint Commission and other places

Publications (77)

Article
Full-text available
The timely and accurate monitoring of forest resources is becoming of increasing importance in light of the multi-functionality of these ecosystems and their increasing vulnerability to climate change. Remote sensing observations of tree cover and systematic ground observations from National Forest Inventories (NFIs) represent the two major sources...
Article
Full-text available
Detailed parcel-level crop type mapping for the whole European Union (EU) is necessary for the evaluation of agricultural policies. The Copernicus program, and Sentinel-1 (S1) in particular, offers the opportunity to monitor agricultural land at a continental scale and in a timely manner. However, so far the potential of S1 has not been explored at...
Preprint
Full-text available
Detailed parcel-level crop type mapping for the whole European Union (EU) is necessary for the evaluation of agricultural policies. The Copernicus program, and Sentinel-1 (S1) in particular, offers the opportunity to monitor agricultural land at a continental scale and in a timely manner. However, so far the potential of S1 has not been explored at...
Article
Full-text available
In recent decades, global oil palm production has shown an abrupt increase, with almost 90% produced in Southeast Asia alone. To understand trends in oil palm plantation expansion and for landscape-level planning, accurate maps are needed. Although different oil palm maps have been produced using remote sensing in the past, here we use Sentinel 1 i...
Article
Full-text available
The Land Use/Cover Area frame Survey (LUCAS) is an evenly spaced in situ land cover and land use ground survey exercise that extends over the whole of the European Union. LUCAS was carried out in 2006, 2009, 2012, 2015, and 2018. A new LUCAS module specifically tailored to Earth observation (EO) was introduced in 2018: the LUCAS Copernicus module....
Article
Full-text available
The frequent acquisitions of fine spatial resolution imagery (10 m) offered by recent multispectral satellite missions, including Sentinel-2, can resolve single agricultural fields and thus provide crop-specific phenology metrics, a crucial information for crop monitoring. However, effective phenology retrieval may still be hampered by significant...
Article
Full-text available
Accurately characterizing land surface changes with Earth Observation requires geo-located ground truth. In the European Union (EU), a tri-annual surveyed sample of land cover and land use has been collected since 2006 under the Land Use/Cover Area frame Survey (LUCAS). A total of 1351293 observations at 651780 unique locations for 106 variables al...
Preprint
Full-text available
The Land Use/Cover Area frame Survey (LUCAS) is a regular in-situ land cover and land use ground survey exercise that extends over the whole of the European Union. LUCAS was carried out in 2006, 2009, 2012, 2015, and 2018. A new LUCAS module specifically tailored to Earth Observation was introduced in 2018: the LUCAS Copernicus module, aiming at su...
Article
Full-text available
Forests provide a series of ecosystem services that are crucial to our society. In the European Union (EU), forests account for approximately 38% of the total land surface1. These forests are important carbon sinks, and their conservation efforts are vital for the EU’s vision of achieving climate neutrality by 20502. However, the increasing demand...
Book
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This document presents the contributions discussed at the second institutional workshop on Artificial Intelligence (AI), organized by the Joint Research Centre (JRC) of the European Commission. This workshop was held on 05th July 2019 at the premises of the JRC in Ispra (Italy), with video-conference to all JRC's sites. The workshop aimed to gather...
Preprint
Full-text available
Accurately characterizing land surface changes with Earth Observation requires geo-localized ground truth. In the European Union (EU), a tri-annual surveyed sample of land cover and land use has been collected since 2006 under the Land Use/Cover Area frame Survey (LUCAS). A total of 1,351,293 observations at 651,780 unique locations for 117 variabl...
Preprint
Full-text available
In recent decades, global oil palm production has shown an abrupt increase, with almost 90% produced in Southeast Asia alone. Monitoring oil palm is largely based on national surveys and inventories or one-off mapping studies. However, they do not provide detailed spatial extent or timely updates and trends in oil palm expansion or age. Palm oil yi...
Article
Full-text available
A novel methodology is proposed to robustly map oil seed rape (OSR) flowering phenology from time series generated from the Copernicus Sentinel-1 (S1) and Sentinel-2 (S2) sensors. The time series are averaged at parcel level, initially for a set of 229 reference parcels for which multiple phenological observations on OSR flowering have been collect...
Book
Full-text available
This document presents the contributions presented at the first internal workshop on Artificial Intelligence (AI), organized by the Joint Research Centre (JRC) of the European Commission. This workshop was held on 23rd May at the premises of the JRC in Ispra (Italy), with video-conference to all JRC's sites. The workshop aimed to gather JRC special...
Conference Paper
Full-text available
Detailed and up to date information on large scale land acquisitions (LSLA) in developing countries is generally not easily available due to low transparency of such deals, remoteness of the areas concerned and conflicts about tenure rights. Out of all deals documented in the Land Matrix 1 platform for example, only 13% are linked to a georeference...
Conference Paper
Full-text available
Recent European Union (EU) legislation for the Common Agricultural Policy (CAP) introduces the concept of checks by monitoring [1], which requires the development of machine learning approaches for country-wide, full season use of the EU's Copernicus Sentinel time series at agricultural parcel level. The excellent consistency of dense Sentinel-1 ti...
Article
Full-text available
New approaches to collect in-situ data are needed to complement the high spatial (10 m) and temporal (5 d) resolution of Copernicus Sentinel satellite observations. Making sense of Sentinel observations requires high quality and timely in-situ data for training and validation. Classical ground truth collection is expensive, lacks scale, fails to ex...
Preprint
Full-text available
New approaches to collect in-situ data are needed to complement the high spatial (10~m) and temporal (5-day) resolution of Copernicus Sentinel satellite observations. Making sense of Sentinel observations requires high quality and timely in-situ data for training and validation. Classical ground truth collection is expensive, lacks scale, fails to...
Article
Full-text available
The introduction of high-resolution Sentinels combined with the use of high-quality digital agricultural parcel registration systems is driving the move towards at-parcel agricultural monitoring. The European Union’s Common Agricultural Policy (CAP) has introduced the concept of CAP monitoring to help simplify the management and control of farmers’...
Article
Full-text available
Monitoring crop and rangeland conditions is highly relevant for early warning and response planning in food insecure areas of the world. Satellite remote sensing can obtain relevant and timely information in such areas where ground data are scattered, non-homogenous, or frequently unavailable. Rainfall estimates provide an outlook of the drivers of...
Article
This article presents an experiment in which multi-temporal interferometric coherence calculated from 6-days Sentinel-1A and Sentinel-1B image pairs and backscatter intensity σ° are jointly used for the extraction of built-up areas in the framework of the symbolic machine learning classification. The results obtained with the proposed approach conf...
Conference Paper
Full-text available
Timely agriculture monitoring at parcel level is becoming a reality at continental scale. The recent deployment of the Sentinel fleet has paved the way for new developments ranging from the creation of farm services to the redrawing of agricultural policies. However, suitable processing capacities, robust algorithm development along with systematic...
Technical Report
Full-text available
The purpose of the Handbook on “Remote Sensing for Agricultural Statistics” is to provide guidelines on the use of Remote Sensing for agricultural statistics. Since the mid 70’s, Remote Sensing has been seen as a promising technique for improving agricultural statistics; various applications have taken place on all continents and today various appr...
Technical Report
Full-text available
Between 2005 and 2016, the Ethiopian Government leased about 2.4 million hectares of land for commercial agricultural investments to private domestic and foreign investors as a means of economic growth, food security and job creation. In order to steer these vast amounts of large-scale agricultural investments towards the envisaged benefits, it is...
Conference Paper
Full-text available
Agriculture monitoring, and in particular food security, requires near real time information on crop growing conditions for early detection of possible production deficits. Anomaly maps and time profiles of remote sensing derived indicators related to crop and vegetation conditions can be accessed online thanks to a rapidly growing number of web ba...
Article
Full-text available
For many applied problems in agricultural monitoring and food security, it is important to provide reliable crop classification maps. Satellite imagery is extremely valuable source of data to provide crop maps in a timely way at moderate and high spatial resolution. Information on parcel boundaries that takes into account the spatial context may im...
Conference Paper
Full-text available
During the last years satellite data with high enough spatial and temporal resolution have become available under free and open licenses. The very large volumes of these data allow providing classification maps at global, national and regional scale in operational procedures. Crop mapping and classification of agricultural crops is extremely valuab...
Article
Full-text available
Monitoring crop and natural vegetation conditions is highly relevant, particularly in the food insecure areas of the world. Data from remote sensing image time series at high temporal and medium to low spatial resolution can assist this monitoring as they provide key information about vegetation status in near real-time over large areas. The Softwa...
Conference Paper
Full-text available
In this paper, we propose a new approach to pixel and parcel-based classification of multi-temporal optical satellite imagery. We first restore missing data due to clouds and shadows based on vector and raster data fusion in different phases of classification methodology. Pixel-based classification maps are derived from an ensemble of neural networ...
Article
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The increasing availability of satellite imagery acquired by existing and new sensors allows a wide variety of new applications that depend on the use of diverse spectral and spatial resolution data sets. One of the pre-conditions for the use of hybrid image data sets is a consistent geo-correction capacity. We demonstrate how a novel fast template...
Article
Since the launch of high-resolution optical satellites in 1999, remote sensing has increasingly been used in the context of post-disaster damage assessments worldwide. In the immediate aftermath of a natural disaster, particularly when extensive geographical areas are affected, it is often difficult to determine the extent and magnitude of disaster...
Article
During the last decade, satellite based emergency mapping has developed into a mature operational stage. The European Union's GMES Initial Operations - Emergency Management Service (GIO-EMS), is operational since April 2012. It's set up differs from other mechanisms (for example from the International Charter "Space and Major Disasters"), as it ext...
Article
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The Haiti 2010 earthquake is one of the first major disasters in which very high resolution satellite and airborne imagery was embraced to delineate the event impact. Several rapid mapping initiatives exploited post-earthquake satellite and airborne imagery to produce independent point feature sets marking the damage grade of affected buildings. De...
Conference Paper
CBERS 2B satellite imagery was acquired in the period 2007-2010, at 2.5 m (panchromatic) and 20 m (multi-spectral) spatial resolution, respectively. Much of the archived data is available, free of charge, via the Brazilian space organization INPE. However, to be suitable for wide area mapping at scales 1:50,000 to 1:100,000 scales (or better), erro...
Article
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Just 4 days after the M = 7.1 earthquake on 12 January 2010, Haitians could send SMS messages about their location and urgent needs through the on-line mapping platform Ushahidi. This real-time crowdsourcing of crisis information provided direct support to key humanitarian resources on the ground, including Search and Rescue teams. In addition to i...
Article
We present a novel method that automatically and accurately determines surface elevation in multi-angular WorldView-2 Ortho Ready Product panchromatic images without the need for detailed satellite ephemeris information. The solution expands our work on building height determination using fast template matching on GPUs, which was selected as one of...
Article
The paper provides an account of how three key relief organizations worked together after the devastating Haiti earthquake to produce the first damage assessment based mainly on the use of remotely-sensed imagery. This assessment was jointly conducted by the World Bank (WB), the United Nations Institute for Training and Research (UNITAR) Operationa...
Article
Full-text available
The paper provides an account of how three key relief organizations worked together after the devastating Haiti earthquake to produce the first damage assessment based mainly on the use of remotely-sensed imagery. This assessment was jointly conducted by the World Bank (WB), the United Nations Institute for Training and Research (UNITAR) Operationa...
Article
Full-text available
Following the devastating M7.2 earthquake that affected Haiti on 12 January 2010 two types of building damage assessment maps were produced: 1) area-based damage assessments using pre- and post-event satellite imagery and 2) detailed building-by-building damage assessments using post-event aerial photography. In this paper, we compare the reliabili...
Article
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In this letter, we study empirically the relation between the double-bounce effect of buildings in very high resolution (VHR) synthetic aperture radar (SAR) and the orientation angle for two different ground materials (i.e., asphalt and grass) by analyzing two different TerraSAR-X VHR spaceborne SAR images. Furthermore, we compare our empirical res...
Article
With the recent advent of very high resolution (VHR) spaceborne synthetic aperture radar (SAR) sensors such as TerraSAR-X and COSMO-SkyMed, the potential to use SAR simulators is increasing. In this letter, we propose a novel radar imaging simulator that is relatively simple to implement and that finds a balance between accuracy and efficiency. The...
Conference Paper
Information on the impact of catastrophic events (e.g. earthquakes) can be derived from suitable satellite imagery by comparing data from a chosen reference before the event (pre-event) to imagery acquired shortly after the event (post-event). In this paper, we propose a novel method that detects buildings destroyed in an earthquake using pre-event...
Article
Rapid damage assessment after natural disasters (e.g., earthquakes) and violent conflicts (e.g., war-related destruction) is crucial for initiating effective emergency response actions. Remote-sensing satellites equipped with very high spatial resolution (VHR) multispectral and synthetic aperture radar (SAR) imaging sensors can provide vital inform...
Article
Experimental airborne synthetic aperture radar (SAR) systems achieve spatial resolutions of approximately 10 cm, whereas the new spaceborne very high spatial resolution (VHR) SAR sensors onboard the TerraSAR-X and COSMO-SkyMed satellites achieve spatial resolutions down to 1 m. In VHR SAR data, features from individual urban structures (i.e., build...
Chapter
Full-text available
Just 4 days after the earthquake, Haitians could send SMS messages on their location and urgent needs through the on-line mapping platform Ushahidi. The real-time crowd-sourcing of crisis information provided direct support to key humanitarian actors on the ground including Search and Rescue teams. In addition to its use as a knowledge base for res...
Article
High Performance Computing (HPC) hardware solutions such as grid computing and General Processing on a Graphics Processing Unit (GPGPU) are now accessible to users with general computing needs. Grid computing infrastructures in the form of computing clusters or blades are becoming common place and GPGPU solutions that leverage the processing power...
Conference Paper
The new spaceborne very high resolution (VHR) synthetic aperture radar (SAR) sensors onboard the TerraSAR-X and COSMO-SkyMED satellites can achieve spatial resolutions in the order of 1 meter. In VHR SAR data, features from individual urban structures (like buildings) can be identified in their characteristic settings in urban settlement patterns....
Conference Paper
The double bounce effect of buildings is an important characteristic in very high resolution (VHR) synthetic aperture radar (SAR) images. It typically appears as a strong scattering mechanism caused by a corner reflector, which is made of the front wall of a building and its surrounding ground area. In order to exploit this feature effectively for...
Article
This paper presents a novel approach to integrate the latest generation very high-resolution earth observation imagery into the operational workflow of geospatial information support for emergency response actions. The core concept behind this approach is the implementation of an image pyramid structure that allows each image tile to be addressed s...
Article
The new spaceborne very high resolution (VHR) synthetic aperture radar (SAR) sensors onboard the TerraSARX and COSMO-SkyMED satellites have a spatial resolution of up to 1 meter. In VHR SAR data, features from individual urban structures (like buildings) can be identified in their characteristic settings in urban settlement patterns. In this paper,...
Article
This paper presents a detailed experimental study on the behavior of the backscattering of buildings in very high resolution (VHR) synthetic aperture radar (SAR) images under varying conditions. The double bounce effect caused by the corner reflector between the front wall of the building and its surrounding ground area is an important characterist...
Conference Paper
SuperOverlays are image pyramid constructs for use in visualisation of client side imagery in the Google Earth (GE) virtual globe viewer. SuperOverlays combine portable image formats, such as JPEG, PNG or TIFF, with geographical metadata tagging in KML files. This has the fortunate side-effect that SuperOverlays can be easily served via standard we...
Conference Paper
The new spaceborne very high resolution (VHR) SAR sensors onboard the TerraSAR-X and COSMO-SkyMED satellites have a spatial resolution of up to 1 meter. In VHR SAR data, features from individual urban structures (like buildings) can be identified in their characteristic settings in urban settlement patterns. In this paper, we present a novel method...
Article
The new spaceborne very high resolution (VHR) SAR sensors onboard the TerraSAR-X and COSMO-SkyMED satellites have a spatial resolution of up to 1 meter. In VHR SAR data, features from individual urban structures, like buildings, can be identified in their characteristic settings in urban settlement patterns. In the context of situation assessment a...
Conference Paper
The upcoming availability of new very high resolution SAR imagery from satellite sensors (e.g. Radarsat-2, TerraSAR-X, COSMOSkymed) has renewed interest in extraction of scene parameters for the characterisation of urban areas. In order to properly face this problem, we have defined a structured and hierarchical research strategy that follows a sys...
Article
We present results from the use of a vessel detection system (VDS) which locates vessel positions in remote sensing imagery acquired by orbiting Synthetic Aperture Radar (SAR) satellite sensors. The system, which is developed and maintained in house, has been tested in several vessel traffic situations in European waters and international waters du...
Article
Full-text available
Abstract  To complement existing fishery control measures, in particular the Vessel Monitoring System (VMS), a pilot operational system to find fishing vessels in satellite images was set up. Radar is the mainstay of the system, which furthermore includes fully automated image processing and communication protocols with the authorities. Different i...
Article
Full-text available
The European Commission's Joint Research Centre has implemented a vessel detection system (VDS) based on the near real time use of synthetic aperture radar (SAR) imagery from operational orbiting satellites. The modular system consists of a number of distinct processing steps that are combined in an automated work flow capable of providing detected...
Chapter
Disaster management takes current information technology to its limits due to the very large amount of relevant data and tight response times. This is in particular true for satellite data which needs to be retrieved from different archives, processed an interpreted. Typical issues are efficiency of database access, integration of multiple heteroge...
Conference Paper
The system components for the operation supply of maritime target positions detected in SAR imagery are described, together with their implementation details and practical performance parameters. Integration of detected target information within European fisheries monitoring systems based on VMS is demonstrated
Article
The potential of using ERS Scatterometer data for soil moisture monitoring over the Ukraine is investigated. The ERS Scatterometer is a C-band radar with a spatial resolution of 50 km and a high temporal sampling rate. An algorithm for estimating the surface soil moisture content is applied to 6 years of data. A qualitative comparison with meteorol...
Article
The scatterometer flown onboard the European remote-sensing satellites ERS-1 and ERS-2 is a vertically polarized radar operating at 5.3 GHz (C-band) and has a spatial resolution of 50 km. In a number of studies, the sensitivity of the ERS scatterometer to vegetation has been demonstrated, but it is not yet clear which vegetation parameters are of p...