no code implementations • 8 Mar 2024 • Scott Workman, Armin Hadzic
This work addresses the task of modeling spatiotemporal traffic patterns directly from overhead imagery, which we refer to as image-driven traffic modeling.
no code implementations • 28 Nov 2022 • Scott Workman, Armin Hadzic, M. Usman Rafique
Though semantic segmentation has been heavily explored in vision literature, unique challenges remain in the remote sensing domain.
no code implementations • CVPR 2022 • Scott Workman, M. Usman Rafique, Hunter Blanton, Nathan Jacobs
We introduce a novel architecture for near/remote sensing that is based on geospatial attention and demonstrate its use for five segmentation tasks.
no code implementations • ICCV 2021 • Scott Workman, Hunter Blanton
We propose an end-to-end architecture for depth estimation that uses geospatial context to infer a synthetic ground-level depth map from a co-located overhead image, then fuses it inside of an encoder/decoder style segmentation network.
1 code implementation • IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY 2022 • Rafael Padilha, Tawfiq Salem, Scott Workman, Fernanda A. Andaló, Anderson Rocha, Nathan Jacobs
Finally, we demonstrate how the proposed method can be employed to estimate a possible time-of-capture in scenarios in which the timestamp is missing from the metadata.
no code implementations • CVPR 2020 • Tawfiq Salem, Scott Workman, Nathan Jacobs
The appearance of the world varies dramatically not only from place to place but also from hour to hour and month to month.
no code implementations • 22 Dec 2020 • Hunter Blanton, Scott Workman, Nathan Jacobs
Direct methods, such as PoseNet, regress pose from the image as a fixed function, for example using a feed-forward convolutional network.
no code implementations • CVPR 2020 • Scott Workman, Nathan Jacobs
Our goal is to use overhead imagery to understand patterns in traffic flow, for instance answering questions such as how fast could you traverse Times Square at 3am on a Sunday.
no code implementations • 29 Jul 2020 • Scott Workman, M. Usman Rafique, Hunter Blanton, Connor Greenwell, Nathan Jacobs
A primary challenge in developing algorithms for identifying such artifacts is the cost of collecting annotated training data.
no code implementations • 14 Jun 2020 • Armin Hadzic, Hunter Blanton, Weilian Song, Mei Chen, Scott Workman, Nathan Jacobs
Roadway free-flow speed captures the typical vehicle speed in low traffic conditions.
no code implementations • 16 Sep 2019 • Menghua Zhai, Tawfiq Salem, Connor Greenwell, Scott Workman, Robert Pless, Nathan Jacobs
We propose to implicitly learn to extract geo-temporal image features, which are mid-level features related to when and where an image was captured, by explicitly optimizing for a set of location and time estimation tasks.
1 code implementation • 17 Jan 2019 • Weilian Song, Scott Workman, Armin Hadzic, Xu Zhang, Eric Green, Mei Chen, Reginald Souleyrette, Nathan Jacobs
An emerging approach for conducting such assessments in the United States is through the US Road Assessment Program (usRAP), which rates roads from highest risk (1 star) to lowest (5 stars).
no code implementations • 2 Aug 2018 • Connor Greenwell, Scott Workman, Nathan Jacobs
In this work, we propose a cross-view learning approach, in which images captured from a ground-level view are used as weakly supervised annotations for interpreting overhead imagery.
no code implementations • ICCV 2017 • Scott Workman, Menghua Zhai, David J. Crandall, Nathan Jacobs
To evaluate our approach, we created a large dataset of overhead and ground-level images from a major urban area with three sets of labels: land use, building function, and building age.
no code implementations • ICCV 2017 • Scott Workman, Richard Souvenir, Nathan Jacobs
While natural beauty is often considered a subjective property of images, in this paper, we take an objective approach and provide methods for quantifying and predicting the scenicness of an image.
1 code implementation • CVPR 2017 • Menghua Zhai, Zachary Bessinger, Scott Workman, Nathan Jacobs
We use our network to address the task of estimating the geolocation and geoorientation of a ground image.
Ranked #6 on Cross-View Image-to-Image Translation on cvusa
1 code implementation • CVPR 2016 • Menghua Zhai, Scott Workman, Nathan Jacobs
Our method reverses this process: we propose a set of horizon line candidates and score each based on the vanishing points it contains.
Ranked #2 on Horizon Line Estimation on York Urban Dataset
1 code implementation • 7 Apr 2016 • Scott Workman, Menghua Zhai, Nathan Jacobs
The horizon line is an important contextual attribute for a wide variety of image understanding tasks.
Ranked #2 on Horizon Line Estimation on Horizon Lines in the Wild
no code implementations • ICCV 2015 • Scott Workman, Richard Souvenir, Nathan Jacobs
We propose to use deep convolutional neural networks to address the problem of cross-view image geolocalization, in which the geolocation of a ground-level query image is estimated by matching to georeferenced aerial images.
no code implementations • CVPR 2013 • Nathan Jacobs, Mohammad T. Islam, Scott Workman
We propose cloud motion as a natural scene cue that enables geometric calibration of static outdoor cameras.