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Automatic Annotation of Change Detection Images

Abstract : Earth observation satellites have been capturing a variety of data about our planet for several decades, making many environmental applications possible such as change detection. Recently, deep learning methods have been proposed for urban change detection. However, there has been limited work done on the application of such methods to the annotation of unlabeled images in the case of change detection in forests. This annotation task consists of predicting semantic labels for a given image of a forested area where change has been detected. Currently proposed methods typically do not provide other semantic information beyond the change that is detected. To address these limitations we first demonstrate that deep learning methods can be effectively used to detect changes in a forested area with a pair of pre and post-change satellite images. We show that by using visual semantic embeddings we can automatically annotate the change images with labels extracted from scientific documents related to the study area. We investigated the effect of different corpora and found that best performances in the annotation prediction task are reached with a corpus that is related to the type of change of interest and is of medium size (over ten thousand documents).
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Contributor : Nathalie Neptune Connect in order to contact the contributor
Submitted on : Tuesday, February 23, 2021 - 5:46:51 PM
Last modification on : Tuesday, October 19, 2021 - 2:23:37 PM


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Nathalie Neptune, Josiane Mothe. Automatic Annotation of Change Detection Images. Sensors, MDPI, 2021, 21 (4), pp.1110. ⟨10.3390/s21041110⟩. ⟨hal-03150419⟩



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