Search Results for author: Cenek Albl

Found 8 papers, 2 papers with code

3D Reconstruction from public webcams

no code implementations21 Aug 2021 Tianyu Wu, Konrad Schindler, Cenek Albl

It turns out that the task to reconstruct scene structure from webcam streams is very different from standard structure-from-motion (SfM), and conventional SfM pipelines fail.

3D Reconstruction 3D Scene Reconstruction

From two rolling shutters to one global shutter

no code implementations CVPR 2020 Cenek Albl, Zuzana Kukelova, Viktor Larsson, Tomas Pajdla, Konrad Schindler

Most consumer cameras are equipped with electronic rolling shutter, leading to image distortions when the camera moves during image capture.

Vocal Bursts Valence Prediction

Reconstruction of 3D flight trajectories from ad-hoc camera networks

2 code implementations10 Mar 2020 Jingtong Li, Jesse Murray, Dorina Ismaili, Konrad Schindler, Cenek Albl

We present a method to reconstruct the 3D trajectory of an airborne robotic system only from videos recorded with cameras that are unsynchronized, may feature rolling shutter distortion, and whose viewpoints are unknown.

Linear solution to the minimal absolute pose rolling shutter problem

no code implementations30 Dec 2018 Zuzana Kukelova, Cenek Albl, Akihiro Sugimoto, Tomas Pajdla

Our best 6-point solver, based on the new alternation technique, shows an identical or even better performance than the state-of-the-art R6P solver and is two orders of magnitude faster.

On the Two-View Geometry of Unsynchronized Cameras

2 code implementations CVPR 2017 Cenek Albl, Zuzana Kukelova, Andrew Fitzgibbon, Jan Heller, Matej Smid, Tomas Pajdla

We present new methods for simultaneously estimating camera geometry and time shift from video sequences from multiple unsynchronized cameras.

Vocal Bursts Valence Prediction

Rolling Shutter Absolute Pose Problem With Known Vertical Direction

no code implementations CVPR 2016 Cenek Albl, Zuzana Kukelova, Tomas Pajdla

We compare our R5Pup to the state of the art RS and perspective methods and demonstrate that it outperforms them when vertical direction is known in the range of accuracy available on modern mobile devices.

R6P - Rolling Shutter Absolute Camera Pose

no code implementations CVPR 2015 Cenek Albl, Zuzana Kukelova, Tomas Pajdla

Therefore we can use the standard P3P algorithm to estimate camera orientation and to bring the camera rotation matrix close to the identity.

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