19 research outputs found
Graphical smalltalk with my optimization system for urban planning tasks
Based on the description of a conceptual framework for the representation of planning problems on various scales, we introduce an evolutionary design optimization system. This system is exemplified by means of the generation of street networks with locally defined properties for centrality. We show three different scenarios for planning requirements and evaluate the resulting structures with respect to the requirements of our framework. Finally the potentials and challenges of the presented approach are discussed in detail
DeepGlobe 2018: A Challenge to Parse the Earth through Satellite Images
We present the DeepGlobe 2018 Satellite Image Understanding Challenge, which
includes three public competitions for segmentation, detection, and
classification tasks on satellite images. Similar to other challenges in
computer vision domain such as DAVIS and COCO, DeepGlobe proposes three
datasets and corresponding evaluation methodologies, coherently bundled in
three competitions with a dedicated workshop co-located with CVPR 2018.
We observed that satellite imagery is a rich and structured source of
information, yet it is less investigated than everyday images by computer
vision researchers. However, bridging modern computer vision with remote
sensing data analysis could have critical impact to the way we understand our
environment and lead to major breakthroughs in global urban planning or climate
change research. Keeping such bridging objective in mind, DeepGlobe aims to
bring together researchers from different domains to raise awareness of remote
sensing in the computer vision community and vice-versa. We aim to improve and
evaluate state-of-the-art satellite image understanding approaches, which can
hopefully serve as reference benchmarks for future research in the same topic.
In this paper, we analyze characteristics of each dataset, define the
evaluation criteria of the competitions, and provide baselines for each task.Comment: Dataset description for DeepGlobe 2018 Challenge at CVPR 201
Generative Street Addresses from Satellite Imagery
We describe our automatic generative algorithm to create street addresses from satellite images by learning and labeling roads, regions, and address cells. Currently, 75% of the world’s roads lack adequate street addressing systems. Recent geocoding initiatives tend to convert pure latitude and longitude information into a memorable form for unknown areas. However, settlements are identified by streets, and such addressing schemes are not coherent with the road topology. Instead, we propose a generative address design that maps the globe in accordance with streets. Our algorithm starts with extracting roads from satellite imagery by utilizing deep learning. Then, it uniquely labels the regions, roads, and structures using some graph- and proximity-based algorithms. We also extend our addressing scheme to (i) cover inaccessible areas following similar design principles; (ii) be inclusive and flexible for changes on the ground; and (iii) lead as a pioneer for a unified street-based global geodatabase. We present our results on an example of a developed city and multiple undeveloped cities. We also compare productivity on the basis of current ad hoc and new complete addresses. We conclude by contrasting our generative addresses to current industrial and open solutions. Keywords: road extraction; remote sensing; satellite imagery; machine learning; supervised learning; generative schemes; automatic geocodin
Graphical smalltalk with my optimization system for urban planning tasks
Based on the description of a conceptual framework for the representation of planning problems on various scales, we introduce an evolutionary design optimization system. This system is exemplified by means of the generation of street networks with locally defined properties for centrality. We show three different scenarios for planning requirements and evaluate the resulting structures with respect to the requirements of our framework. Finally the potentials and challenges of the presented approach are discussed in detail