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Oli Pescott's Projects

frescalo icon frescalo

R rewrite of Hill (2012; 10.1111/j.2041-210X.2011.00146.x) fortran code

npmstrends icon npmstrends

Beginning work on data extracts and trends for NPMS species

robitt icon robitt

Risk-Of-Bias in Temporal Trends in Ecology (ROBITT)

robitt_ideas icon robitt_ideas

Response to ROBITT workshop (some ideas presented in isoslides)

sen2mosaic icon sen2mosaic

Building cloud-free mosaics of Sentinel-2 data for land cover mapping is difficult, with existing tools still under-development and frequently confusing.

shinyforms icon shinyforms

Easily create questionnaire-type forms with Shiny

soar icon soar

Species' occurrence analyses in R

starter-academic icon starter-academic

🎓 创建一个学术网站. Easily create a beautiful academic résumé or educational website using Hugo, GitHub, and Netlify.

topographical-feature-extraction-using-machine-learning-techniques-from-sentinel-2a-imagery- icon topographical-feature-extraction-using-machine-learning-techniques-from-sentinel-2a-imagery-

The advancement in the satellite technology has made it possible to easily and frequently obtain the satellite images of most of the regions in the Earth. The satellite data contains abundant amount of information which can be very useful for variety of societal applications. However, manual identification of the land cover in a particular area is a very challenging and time-consuming task. we propose a method for classifying the land types from Sentinel 2A imagery using various models like random forest, SVM, Naive Bayes, Decision Tree (CART) and validate which model better classifies them. QGIS software is used to generate training data for the classifier. The analysis reveals that random forest classifier outperforms the rest of the classification methods in terms of better accuracy. This automated approach can be applied to large sets of data, reducing the need for manual labeling.

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