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Home Authors Posts by Gellert Mattyus

Gellert Mattyus

Gellert Mattyus is a research scientist at Uber ATG Toronto working on computer vision and machine learning problems related to self-driving with an emphasis on perceiving maps. Gellert Mattyus has earned his PhD at the Remote Sensing Technology Chair of the Technical University of Munich (TUM) while working as a research scientist at the Photogrammetry and Image Analysis Department of the German Aerospace Center (DLR). After earning his PhD, Gellert Mattyus has spent nearly a year as a post-doc at the Machine Learning Group of the University of Toronto under the supervision of Professor Raquel Urtasun.

Research Papers

Deep Multi-Sensor Lane Detection

M. Bai, G. Mattyus, N. Homayounfar, S. Wang, S. K. Lakshmikanth, R. Urtasun
Reliable and accurate lane detection has been a long-standing problem in the field of autonomous driving. In recent years, many approaches have been developed that use images (or videos) as input and reason in image space. In this paper we argue that accurate image estimates do not translate to precise 3D lane boundaries, which are the input required by modern motion planning algorithms. [...] [PDF]
International Conference on Intelligent Robots and Systems (IROS), 2018

Matching Adversarial Networks

G. Mattyus, R. Urtasun
Generative Adversarial Nets (GANs) and Conditonal GANs (CGANs) show that using a trained network as loss function (discriminator) enables to synthesize highly structured outputs (e.g. natural images). However, applying a discriminator network as a universal loss function for common supervised tasks (e.g. semantic segmentation, line detection, depth estimation) is considerably less successful. [...] [PDF]
Conference on Computer Vision and Pattern Recognition (CVPR), 2018

DeepRoadMapper: Extracting Road Topology From Aerial Images

G. Máttyus, W. Luo, R. Urtasun
Creating road maps is essential for applications such as autonomous driving and city planning. Most approaches in industry focus on leveraging expensive sensors mounted on top of a fleet of cars. This results in very accurate estimates when exploiting a user in the loop. [...] [PDF]
International Conference on Computer Vision (ICCV), 2017

TorontoCity: Seeing the World With a Million Eyes

S. Wang; M. Bai; G. Mattyus; H. Chu; W. Luo; B. Yang; J. Liang; J. Cheverie; R. Urtasun; D. Lin.
Despite the substantial progress in recent years, the image captioning techniques are still far from being perfect. Sentences produced by existing methods, e.g. those based on RNNs, are often overly rigid and lacking in variability. [...] [PDF]
International Conference on Computer Vision (ICCV), 2017