All Outputs (95)

Impacts of sample design for validation data on the accuracy of feedforward neural network classification (2017)
Journal Article

Validation data are often used to evaluate the performance of a trained neural network and used in the selection of a network deemed optimal for the task at-hand. Optimality is commonly assessed with a measure, such as overall classification accuracy... Read More about Impacts of sample design for validation data on the accuracy of feedforward neural network classification.

Generating a series of fine spatial and temporal resolution land cover maps by fusing coarse spatial resolution remotely sensed images and fine spatial resolution land cover maps (2017)
Journal Article

© 2017 Elsevier Inc. Studies of land cover dynamics would benefit greatly from the generation of land cover maps at both fine spatial and temporal resolutions. Fine spatial resolution images are usually acquired relatively infrequently, whereas coars... Read More about Generating a series of fine spatial and temporal resolution land cover maps by fusing coarse spatial resolution remotely sensed images and fine spatial resolution land cover maps.

Improving specific class mapping from remotely sensed data by cost-sensitive learning (2017)
Journal Article

In many remote-sensing projects, one is usually interested in a small number of land-cover classes present in a study area and not in all the land-cover classes that make-up the landscape. Previous studies in supervised classification of satellite im... Read More about Improving specific class mapping from remotely sensed data by cost-sensitive learning.

Using mixed objects in the training of object-based image classifications (2017)
Journal Article

Image classification for thematic mapping is a very common application in remote sensing, which is sometimes realized through object-based image analysis. In these analyses, it is common for some of the objects to be mixed in their class composition... Read More about Using mixed objects in the training of object-based image classifications.

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.

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.

Impacts of species misidentification on species distribution modeling with presence-only data (2015)
Journal Article

Spatial records of species are commonly misidentified, which can change the predicted distribution of a species obtained from a species distribution model (SDM). Experiments were undertaken to predict the distribution of real and simulated species us... Read More about Impacts of species misidentification on species distribution modeling with presence-only data.

Accurate attribute mapping from volunteered geographic information: issues of volunteer quantity and quality (2015)
Journal Article

Crowdsourcing is a popular means of acquiring data, but the use of such data is limited by concerns with its quality. This is evident within cartography and geographical sciences more generally, with the quality of volunteered geographic information... Read More about Accurate attribute mapping from volunteered geographic information: issues of volunteer quantity and quality.

An assessment of citizen contributed ground reference data for land cover map accuracy assessment (2015)
Journal Article

It is now widely accepted that an accuracy assessment should be part of a thematic mapping programme. Authoritative good or best practices for accuracy assessment have been defined but are often impractical to implement. Key reasons for this situatio... Read More about An assessment of citizen contributed ground reference data for land cover map accuracy assessment.

Integrating user needs on misclassification error sensitivity into image segmentation quality assessment (2015)
Journal Article

Enhancing the spatial resolution of satellite-derived land surface temperature mapping for urban areas (2015)
Journal Article

Land surface temperature (LST) is an important environmental variable for urban studies such as those focused on the urban heat island (UHI). Though satellite-derived LST could be a useful complement to traditional LST data sources, the spatial resol... Read More about Enhancing the spatial resolution of satellite-derived land surface temperature mapping for urban areas.

Usability of VGI for validation of land cover maps (2015)
Journal Article

Volunteered Geographic Information (VGI) represents a growing source of potentially valuable data for many applications, including land cover map validation. It is still an emerging field and many different approaches can be used to take value from V... Read More about Usability of VGI for validation of land cover maps.