no code implementations • 24 May 2023 • Yuchang Jiang, Vivien Sainte Fare Garnot, Konrad Schindler, Jan Dirk Wegner
If training data are imbalanced, the learning is dominated by the densely covered regions of the target distribution, consequently, the learned regressor tends to exhibit poor performance in sparsely covered regions.
1 code implementation • 11 Apr 2023 • Patrick Ebel, Vivien Sainte Fare Garnot, Michael Schmitt, Jan Dirk Wegner, Xiao Xiang Zhu
Clouds and haze often occlude optical satellite images, hindering continuous, dense monitoring of the Earth's surface.
Ranked #1 on
Cloud Removal
on SEN12MS-CR-TS
no code implementations • 20 Feb 2023 • Stefania Russo, Nathanaël Perraudin, Steven Stalder, Fernando Perez-Cruz, Joao Paulo Leitao, Guillaume Obozinski, Jan Dirk Wegner
In this technical report we compare different deep learning models for prediction of water depth rasters at high spatial resolution.
1 code implementation • 31 May 2022 • Mehmet Ozgur Turkoglu, Alexander Becker, Hüseyin Anil Gündüz, Mina Rezaei, Bernd Bischl, Rodrigo Caye Daudt, Stefano D'Aronco, Jan Dirk Wegner, Konrad Schindler
We show that the idea can be extended to uncertainty quantification: by modulating the network activations of a single deep network with FiLM, one obtains a model ensemble with high diversity, and consequently well-calibrated estimates of epistemic uncertainty, with low computational overhead in comparison.
no code implementations • 13 Apr 2022 • Nico Lang, Walter Jetz, Konrad Schindler, Jan Dirk Wegner
The worldwide variation in vegetation height is fundamental to the global carbon cycle and central to the functioning of ecosystems and their biodiversity.
no code implementations • 10 Feb 2022 • Stefano D'Aronco, Giorgio Trumpy, David Pfluger, Jan Dirk Wegner
We validate the proposed method on a lenticular film dataset and compare it to other approaches.
no code implementations • 25 Nov 2021 • Alexander Becker, Stefania Russo, Stefano Puliti, Nico Lang, Konrad Schindler, Jan Dirk Wegner
To demonstrate scalability, we provide Norway-wide maps for the five forest structure variables.
no code implementations • 15 Jul 2021 • Nico Lang, Konrad Schindler, Jan Dirk Wegner
The increasing demand for commodities is leading to changes in land use worldwide.
1 code implementation • 11 Apr 2021 • Devis Tuia, Ribana Roscher, Jan Dirk Wegner, Nathan Jacobs, Xiao Xiang Zhu, Gustau Camps-Valls
In the last years we have witnessed the fields of geosciences and remote sensing and artificial intelligence to become closer.
1 code implementation • CVPR 2021 • Nikolai Kalischek, Jan Dirk Wegner, Konrad Schindler
Style transfer aims to render the content of a given image in the graphical/artistic style of another image.
1 code implementation • 5 Mar 2021 • Nico Lang, Nikolai Kalischek, John Armston, Konrad Schindler, Ralph Dubayah, Jan Dirk Wegner
NASA's Global Ecosystem Dynamics Investigation (GEDI) is a key climate mission whose goal is to advance our understanding of the role of forests in the global carbon cycle.
1 code implementation • ICLR 2021 • Yujia Liu, Stefano D'Aronco, Konrad Schindler, Jan Dirk Wegner
Next, the corners are linked with an exhaustive set of candidate edges, which is again pruned to obtain the final wireframe.
1 code implementation • 17 Feb 2021 • Mehmet Ozgur Turkoglu, Stefano D'Aronco, Gregor Perich, Frank Liebisch, Constantin Streit, Konrad Schindler, Jan Dirk Wegner
The three-level label hierarchy is encoded in a convolutional, recurrent neural network (convRNN), such that for each pixel the model predicts three labels at different level of granularity.
no code implementations • 10 Feb 2021 • Michael Kölle, Dominik Laupheimer, Stefan Schmohl, Norbert Haala, Franz Rottensteiner, Jan Dirk Wegner, Hugo Ledoux
Automated semantic segmentation and object detection are of great importance in geospatial data analysis.
1 code implementation • 4 Dec 2020 • Nando Metzger, Mehmet Ozgur Turkoglu, Stefano D'Aronco, Jan Dirk Wegner, Konrad Schindler
We propose to use neural ordinary differential equations (NODEs) in combination with RNNs to classify crop types in irregularly spaced image sequences.
1 code implementation • 25 Aug 2020 • Vít Růžička, Stefano D'Aronco, Jan Dirk Wegner, Konrad Schindler
We investigate active learning in the context of deep neural network models for change detection and map updating.
no code implementations • 20 Mar 2020 • Andres C. Rodriguez, Stefano D'Aronco, Konrad Schindler, Jan Dirk Wegner
We propose a scheme for supervised image classification that uses privileged information, in the form of keypoint annotations for the training data, to learn strong models from small and/or biased training sets.
no code implementations • 5 Feb 2020 • Daniel Laumer, Nico Lang, Natalie van Doorn, Oisin Mac Aodha, Pietro Perona, Jan Dirk Wegner
We introduce an approach for updating older tree inventories with geographic coordinates using street-level panorama images and a global optimization framework for tree instance matching.
1 code implementation • 11 Dec 2019 • Kishan Sharma, Moritz Gold, Christian Zurbruegg, Laura Leal-Taixé, Jan Dirk Wegner
Our method results in an overall improvement in the count and size distribution prediction as compared to state-of-the-art instance segmentation method Mask R-CNN.
3 code implementations • 25 Nov 2019 • Mehmet Ozgur Turkoglu, Stefano D'Aronco, Jan Dirk Wegner, Konrad Schindler
We propose a new STAckable Recurrent cell (STAR) for recurrent neural networks (RNNs), which has fewer parameters than widely used LSTM and GRU while being more robust against vanishing or exploding gradients.
no code implementations • 7 Oct 2019 • Steve Branson, Jan Dirk Wegner, David Hall, Nico Lang, Konrad Schindler, Pietro Perona
We believe this is the first work to exploit publicly available image data for fine-grained tree mapping at city-scale, respectively over many thousands of trees.
no code implementations • 30 Apr 2019 • Nico Lang, Konrad Schindler, Jan Dirk Wegner
Sentinel-2 multi-spectral images collected over periods of several months were used to estimate vegetation height for Gabon and Switzerland.
2 code implementations • ICCV 2019 • Riccardo de Lutio, Stefano D'Aronco, Jan Dirk Wegner, Konrad Schindler
Guided super-resolution is a unifying framework for several computer vision tasks where the inputs are a low-resolution source image of some target quantity (e. g., perspective depth acquired with a time-of-flight camera) and a high-resolution guide image from a different domain (e. g., a grey-scale image from a conventional camera); and the target output is a high-resolution version of the source (in our example, a high-res depth map).
no code implementations • ICCV 2019 • Zuoyue Li, Jan Dirk Wegner, Aurélien Lucchi
We propose a new approach, named PolyMapper, to circumvent the conventional pixel-wise segmentation of (aerial) images and predict objects in a vector representation directly.
1 code implementation • 6 Nov 2017 • Dimitrios Marmanis, Wei Yao, Fathalrahman Adam, Mihai Datcu, Peter Reinartz, Konrad Schindler, Jan Dirk Wegner, Uwe Stilla
Very High Spatial Resolution (VHSR) large-scale SAR image databases are still an unresolved issue in the Remote Sensing field.
2 code implementations • 21 Jul 2017 • Pascal Kaiser, Jan Dirk Wegner, Aurelien Lucchi, Martin Jaggi, Thomas Hofmann, Konrad Schindler
We adapt a state-of-the-art CNN architecture for semantic segmentation of buildings and roads in aerial images, and compare its performance when using different training data sets, ranging from manually labeled, pixel-accurate ground truth of the same city to automatic training data derived from OpenStreetMap data from distant locations.
no code implementations • 23 May 2017 • Sébastien Lefèvre, Devis Tuia, Jan Dirk Wegner, Timothée Produit, Ahmed Samy Nassar
In this paper, we discuss and review how combined multi-view imagery from satellite to street-level can benefit scene analysis.
1 code implementation • 5 Dec 2016 • Dimitrios Marmanis, Konrad Schindler, Jan Dirk Wegner, Silvano Galliani, Mihai Datcu, Uwe Stilla
We present an end-to-end trainable deep convolutional neural network (DCNN) for semantic segmentation with built-in awareness of semantically meaningful boundaries.