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ISPRS Int. J. Geo-Inf. 2018, 7(6), 205; https://doi.org/10.3390/ijgi7060205

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

Department of Geography, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
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Received: 6 April 2018 / Revised: 17 May 2018 / Accepted: 27 May 2018 / Published: 29 May 2018
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Abstract

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 individual field workers, and differences in their perception of the landscape. In this study, we explored the interaction between the characteristics of these workers, including their gender and years of experience (as a proxy for their mapping skills), and landscape heterogeneity. There was no significant difference between male and female workers. Although field workers with more years of experience generally had higher mapping quality, the relationship was not statistically significant. We found differences in the rates of misclassification, omission, and commission errors between workers in different landscape types. We conclude that the error rates due to misclassification, omission, and commission were the lowest in more diverse landscapes (high number of different land use types) with a relatively high amount of buildings, whereas the error rates were the highest in mainly forested landscapes with larger and more complex shaped patches. View Full-Text
Keywords: classification correctness; commission; landscape metrics; omission; spatial data quality; thematic accuracy; topographical mapping; volunteered geographic information classification correctness; commission; landscape metrics; omission; spatial data quality; thematic accuracy; topographical mapping; volunteered geographic information
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Mõisja, K.; Uuemaa, E.; Oja, T. The Implications of Field Worker Characteristics and Landscape Heterogeneity for Classification Correctness and the Completeness of Topographical Mapping. ISPRS Int. J. Geo-Inf. 2018, 7, 205.

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