Results 11 to 20 of about 66,706 (243)

An Exploration of Some Pitfalls of Thematic Map Assessment Using the New Map Tools Resource

open access: yesRemote Sensing, 2018
A variety of metrics are commonly employed by map producers and users to assess and compare thematic maps’ quality, but their use and interpretation is inconsistent.
Carl Salk   +4 more
doaj   +3 more sources

Accuracy of artificial intelligence applications in periodontics: a thematic narrative review

open access: yesFrontiers in Dental Medicine
BackgroundArtificial intelligence (AI) has been increasingly applied to periodontal diagnostics across periapical, bitewing, panoramic radiographs, cone-beam computed tomography (CBCT), and intraoral photographs.
Ady Azhari
doaj   +3 more sources

Comparison of Planimetric and Thematic Accuracy of OrbView-3 and IKONOS Images

open access: yesJournal of the Indian Society of Remote Sensing, 2011
Spatial mapping from space using high-resolution satellite sensor data instead of conventional data collection techniques widely gained popularity. This study aims to analyze the planimetric and thematic accuracy of high-resolution OrbView-3 and IKONOS orthoimages.
Mustafa Yanalak   +2 more
exaly   +3 more sources

Thematic quality assessment of land surface geospatial data based on confusion matrices: A matrix set for research on measures and procedures

open access: yesGeoscience Data Journal, 2022
The confusion matrix has long been adopted as the ‘de facto’ and ‘de jure’ standard method of reporting on the thematic accuracy assessment of any land surface geospatial dataset.
Francisco J. Ariza‐López   +3 more
doaj   +1 more source

Evaluation of the quality of the Voluntary Geographic Information for the road network in Bogotá D.C

open access: yesCuadernos de Investigación Geográfica, 2022
The production of Voluntary Geographic Information has been growing considerably and continues to be an active area of research. However, the lack of knowledge about the quality of information generated on a voluntary and participatory basis raises ...
Luis A. Niño Beltran   +3 more
doaj   +1 more source

The Implications of Field Worker Characteristics and Landscape Heterogeneity for Classification Correctness and the Completeness of Topographical Mapping

open access: yesISPRS International Journal of Geo-Information, 2018
The quality of spatial data may vary spatially. If mapping (interpretation of orthophotos) is done during fieldwork, this variation in quality may occur as a result of differences in the complexity of the landscape, differences in the characteristics of ...
Kiira Mõisja, Evelyn Uuemaa, Tõnu Oja
doaj   +1 more source

Banco de dados geoespaciais: padronização e avaliação como suporte à Inteligência Territorial

open access: yesConfins, 2023
The approach to different thematic areas in the context of territorial planning and management requires not only the synergy of actions but also the availability of access to organized and standardized data through databases, thus constituting an ...
Silvio Braz de Sousa   +1 more
doaj   +1 more source

Mapping Spatial Patterns of Posidonia oceanica Meadows by Means of Daedalus ATM Airborne Sensor in the Coastal Area of Civitavecchia (Central Tyrrhenian Sea, Italy)

open access: yesRemote Sensing, 2013
The spatial distribution of sea bed covers and seagrass in coastal waters is of key importance in monitoring and managing Mediterranean shallow water environments often subject to both increasing anthropogenic impacts and climate change effects.
Marco Marcelli   +9 more
doaj   +1 more source

EVALUATION OF EFFECTIVENESS OF PATCH BASED IMAGE CLASSIFICATION TECHNIQUE USING HIGH RESOLUTION WORLDVIEW-2 IMAGE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The aim of the current study was to evaluate the performance of patch-based classification technique in land use/land cover classification and to investigate the effect of patch size in thematic map accuracy.
M. Y. Ozturk, I. Colkesen
doaj   +1 more source

Analysis of Thematic Similarity Using Confusion Matrices

open access: yesISPRS International Journal of Geo-Information, 2018
The confusion matrix is the standard way to report on the thematic accuracy of geographic data (spatial databases, topographic maps, thematic maps, classified images, remote sensing products, etc.).
José L. García-Balboa   +3 more
doaj   +1 more source

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