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Rene Ranftl

13 accepted papers

2022

Language-driven Semantic Segmentation

ICLR 2022poster

We present LSeg, a novel model for language-driven semantic image segmentation. LSeg uses a text encoder to compute embeddings of descriptive input labels (e.g., ``grass'' or ``building'') together with a transformer-based image encoder that computes dense per-pixel embeddings of the input image. Th…

2021

Deep Drone Acrobatics (Extended Abstract)

IJCAI 2021poster

Acrobatic flight with quadrotors is extremely challenging. Maneuvers such as the loop, matty flip, or barrel roll require high thrust and extreme angular accelerations that push the platform to its limits. Human drone pilots require years of practice to safely master such maneuvers. Yet, a tiny mis…

Cited by 0SourcePDFScholar
2021

Landmark Regularization: Ranking Guided Super-Net Training in Neural Architecture Search

CVPR 2021poster

Weight sharing has become a de facto standard in neural architecture search because it enables the search to be done on commodity hardware. However, recent works have empirically shown a ranking disorder between the performance of stand-alone architectures and that of the corresponding shared-weight…

Cited by 23PDFcodeScholar
2021

Looking Beyond Single Images for Contrastive Semantic Segmentation Learning

NeurIPS 2021poster

We present an approach to contrastive representation learning for semantic segmentation. Our approach leverages the representational power of existing feature extractors to find corresponding regions across images. These cross-image correspondences are used as auxiliary labels to guide the pixel-lev…

Cited by 44SourcePDFScholar
2020

Deep Drone Acrobatics

RSS 2020poster

Performing acrobatic maneuvers with quadrotors is extremely challenging. Acrobatic flight requires high thrust and extreme angular accelerations that push the platform to its physical limits. Professional drone pilots often measure their level of mastery by flying such maneuvers in competitions. In…

2020

High-Dimensional Convolutional Networks for Geometric Pattern Recognition

CVPR 2020oral

High-dimensional geometric patterns appear in many computer vision problems. In this work, we present high-dimensional convolutional networks for geometric pattern recognition problems that arise in 2D and 3D registration problems. We first propose high-dimensional convolutional networks from 4 to 3…

Cited by 47PDFcodeScholar
2019

Events-To-Video: Bringing Modern Computer Vision to Event Cameras

CVPR 2019poster

Event cameras are novel sensors that report brightness changes in the form of asynchronous "events" instead of intensity frames. They have significant advantages over conventional cameras: high temporal resolution, high dynamic range, and no motion blur. Since the output of event cameras is fundamen…

Cited by 460PDFScholar
2019

What Do Single-View 3D Reconstruction Networks Learn?

CVPR 2019poster

Convolutional networks for single-view object reconstruction have shown impressive performance and have become a popular subject of research. All existing techniques are united by the idea of having an encoder-decoder network that performs non-trivial reasoning about the 3D structure of the output s…

Cited by 521PDFScholar
2018

Deep Drone Racing: Learning Agile Flight in Dynamic Environments

CoRL 2018

Autonomous agile flight brings up fundamental challenges in robotics, such as coping with unreliable state estimation, reacting optimally to dynamically changing environments, and coupling perception and action in real time under severe resource constraints. In this paper, we consider these challeng

Cited by 0SourcePDFScholar