All Outputs (11)

The sensitivity of mapping methods to reference data quality: training supervised image classifications with imperfect reference data (2016)
Journal Article

The accuracy of a map is dependent on the reference dataset used in its construction. Classification analyses used in thematic mapping can, for example, be sensitive to a range of sampling and data quality concerns. With particular focus on the latte... Read More about The sensitivity of mapping methods to reference data quality: training supervised image classifications with imperfect reference data.

Integration of remote-sensing and ground-based observations for estimation of emissions and removals of greenhouse gases in forests: methods and guidance from the Global Forest Observations Initiative (2016)
Report

The Global Forest Observations Initiative (GFOI) was established by GEO in 2011, to assist countries to produce reliable, consistent reports on change in forest cover and forest use, and associated anthropogenic greenhouse gas emissions and removals.

An iterative interpolation deconvolution algorithm for superresolution land cover mapping (2016)
Journal Article

Super-resolution mapping (SRM) is a method to produce a fine spatial resolution land cover map from coarse spatial resolution remotely sensed imagery. A popular approach for SRM is a two-step algorithm, which first increases the spatial resolution of... Read More about An iterative interpolation deconvolution algorithm for superresolution land cover mapping.

Assessing a temporal change strategy for sub-pixel land cover change mapping from multi-scale remote sensing imagery (2016)
Journal Article

Remotely sensed imagery is an attractive source of information for mapping and monitoring land cover. Fine spatial resolution imagery is typically acquired infrequently, but fine temporal resolution systems commonly provide coarse spatial resolution... Read More about Assessing a temporal change strategy for sub-pixel land cover change mapping from multi-scale remote sensing imagery.

Investigating the feasibility of geo-tagged photographs as sources of land cover input data (2016)
Journal Article

Geo-tagged photographs are used increasingly as a source of Volunteered Geographic Information (VGI), which could potentially be used for land use and land cover applications. The purpose of this paper is to analyze the feasibility of using this sour... Read More about Investigating the feasibility of geo-tagged photographs as sources of land cover input data.

Improving super-resolution mapping through combining multiple super-resolution land-cover maps (2016)
Journal Article

Super-resolution mapping (SRM) is an ill-posed problem, and different SRM algorithms may generate non-identical fine spatial resolution land-cover maps (sub-pixel maps) from the same input coarse spatial resolution image. The output sub-pixels maps m... Read More about Improving super-resolution mapping through combining multiple super-resolution land-cover maps.

Crowdsourcing, citizen science or volunteered geographic information? The current state of crowdsourced geographic information (2016)
Journal Article

Citizens are increasingly becoming an important source of geographic information, sometimes entering domains that had until recently been the exclusive realm of authoritative agencies. This activity has a very diverse character as it can, amongst oth... Read More about Crowdsourcing, citizen science or volunteered geographic information? The current state of crowdsourced geographic information.

Learning-Based Superresolution Land Cover Mapping (2016)
Journal Article

Super-resolution mapping (SRM) is a technique for generating a fine spatial resolution land cover map from coarse spatial resolution fraction images estimated by soft classification. The prior model used to describe the fine spatial resolution land c... Read More about Learning-Based Superresolution Land Cover Mapping.

A Superresolution Land-Cover Change Detection Method Using Remotely Sensed Images With Different Spatial Resolutions (2016)
Journal Article

The development of remote sensing has enabled the acquisition of information on land-cover change at different spatial scales. However, a trade-off between spatial and temporal resolutions normally exists. Fine-spatial-resolution images have low temp... Read More about A Superresolution Land-Cover Change Detection Method Using Remotely Sensed Images With Different Spatial Resolutions.

Geographically weighted evidence combination approaches for combining discordant and inconsistent volunteered geographical information (2016)
Journal Article

There is much interest in being able to combine crowdsourced data. One of the critical issues in information sciences is how to combine data or information that are discordant or inconsistent in some way. Many previous approaches have taken a majorit... Read More about Geographically weighted evidence combination approaches for combining discordant and inconsistent volunteered geographical information.

The scale of VGI in map production: a perspective of European National Mapping Agencies (2016)
Journal Article

The perspective of European National Mapping Agencies (NMA) on the role of citizen sensing in map production was explored. The NMAs varied greatly in their engagement with the community generating volunteered geographic information (VGI) and in their... Read More about The scale of VGI in map production: a perspective of European National Mapping Agencies.