Join us on Thursday 13th September 2018 at the EuroGEOSS Workshop in Geneva for the validation mapathon of OSMlanduse.org Sentinel-2 landuse fusion map. Have an exclusive first peek at the EU wide OSMlanduse Sentinel-2 landuse fusion map, a result of millions of OSM contributions and the Sentinel-2 archive remote sensing data.
The event is a prequel to [...]
Tag Archive 'remote sensing'
Deep Learning from Multiple Crowds: A Case Study of Humanitarian Mapping
Posted in Publications on Aug 16th, 2018
Satellite images are widely applied in humanitarian mapping which labels buildings, roads and so on for humanitarian aid and economic development. However, the labeling now is mostly done by volunteers. In a recently accepted study, we utilize deep learning to solve humanitarian mapping tasks of a mobile software named MapSwipe. The current deep learning techniques [...]
A discussion of crowdsourced geographic information initiatives and big Earth observation data architectures for land-use and land-cover monitoring
Posted in Publications, VGI Group on Jun 3rd, 2018
The effective monitoring of land-use and land-cover changes (LULCC) is a basic requirement for understanding socio-enviromental processes of local to global scales. Remote sensing data and methods have long been established as the most effective approach for monitoring LULCC. The potential for further increasing the effectiveness of this approach is proportional to the astonishingly large [...]
Colloquium on Advances in Remote Sensing Image Search and Retrieval from Large Archives
Posted in Events on May 3rd, 2018
We cordially invite everybody interested to our next open GIScience colloquium talk
The speaker is Prof. Begum Demir
Electrical Engineering and Computer Science, Technical University of Berlin
When: Monday 07.05.2018, 2:15 pm
Where: INF 348, room 015 (Institute of Geography, Heidelberg University)
Recent Advances in Remote Sensing Image Search and Retrieval from Large Archives
During the last decade, a huge number of [...]
We cordially invite everybody interested to our next open GIScience colloquium talk
The speaker is Dr. Benjamin Bechtel
from the Institute of Geography / Center for Earth System Research and Sustainability,
Universität Hamburg www.clisap.de cen.uni-hamburg.de
When: Thursday 08.03.2018, 14ct
Where: INF 348, room015 (Institute of Geography, Heidelberg University)
Abstract:
New observations of urban climates – remote sensing and [...]
OSMlanduse.org + Remote Sensing = New conterminous land use data set for Germany released - filling gaps in OSM through machine learning
Posted in OSM, Publications, Services, VGI Group on Jan 19th, 2018
Land use data created by humans (OSM) was fused with satellite remote sensing data, resulting in a conterminous land use data set without gaps. The first version is now available for all Germany at OSMlanduse.org.
When human input (OSM data) was absent a machine generated missing land use information learning from human inputs and using remote [...]
Context-Based Classification of Urban Blocks According to Their Built-up Structure
Posted in Publications on Jan 16th, 2018
A recently published paper presents an approach for classifying urban blocks according to their built-up structure based on high-resolution spaceborne InSAR images. Most attributes considered in the classification describe the geometric structure and spatial disposition of the polygon and line features extracted from each block. The feature extraction is carried out on two intensity images [...]
Deep Learning with Satellite Images and Volunteered Geographic Information
Posted in Publications, VGI Group on Jan 10th, 2018
Recently, deep learning has been widely applied in pattern recognition with satellite images. Deep learning techniques like Convolutional Neural Network and Deep Belief Network have shown outstanding performance in detecting ground objects like buildings and roads, and the learnt deep features are further applied in some prediction tasks like poverty and population mapping. On the [...]
Open land cover from OpenStreetMap and remote sensing
Posted in OSM, Publications, Services on Sep 27th, 2017
In a recently published study (1), we produced a web based land use land cover (LULC) product based on OSM tags which are constantly updated by contributors/volunteers, and present a Remote Sensing based solution when tags were absent for a test site. We harness the combined benefit of an open source and ever-growing machine generated [...]
GIScience Colloquium Talk on Remote sensing in hazard and disaster monitoring, April 24
Posted in Events on Apr 20th, 2017
we cordially invite everybody interested to our next open GIScience colloquium talk
on Mon, April 24, 2.15 pm,
at the Department of Geography, Heidelberg University, Im Neuenheimer Feld 348, Lecture Hall, Room 015.
The presentation will be given by Prof. Dr. Christine Pohl (Osnabrück).
The topic is:
The role of multimodal and multitemporal remote sensing in hazard and disaster [...]