Search Results for author: Jan Czarnowski

Found 9 papers, 3 papers with code

Towards the Probabilistic Fusion of Learned Priors into Standard Pipelines for 3D Reconstruction

no code implementations27 Jul 2022 Tristan Laidlow, Jan Czarnowski, Andrea Nicastro, Ronald Clark, Stefan Leutenegger

While systems that pass the output of traditional multi-view stereo approaches to a network for regularisation or refinement currently seem to get the best results, it may be preferable to treat deep neural networks as separate components whose results can be probabilistically fused into geometry-based systems.

3D Reconstruction

DeepFusion: Real-Time Dense 3D Reconstruction for Monocular SLAM using Single-View Depth and Gradient Predictions

no code implementations25 Jul 2022 Tristan Laidlow, Jan Czarnowski, Stefan Leutenegger

While the keypoint-based maps created by sparse monocular simultaneous localisation and mapping (SLAM) systems are useful for camera tracking, dense 3D reconstructions may be desired for many robotic tasks.

3D Reconstruction

CodeMapping: Real-Time Dense Mapping for Sparse SLAM using Compact Scene Representations

no code implementations19 Jul 2021 Hidenobu Matsuki, Raluca Scona, Jan Czarnowski, Andrew J. Davison

In this paper we propose a dense mapping framework to complement sparse visual SLAM systems which takes as input the camera poses, keyframes and sparse points produced by the SLAM system and predicts a dense depth image for every keyframe.

3D Reconstruction Depth Estimation +1

DeepFactors: Real-Time Probabilistic Dense Monocular SLAM

1 code implementation14 Jan 2020 Jan Czarnowski, Tristan Laidlow, Ronald Clark, Andrew J. Davison

The ability to estimate rich geometry and camera motion from monocular imagery is fundamental to future interactive robotics and augmented reality applications.

LS-Net: Learning to Solve Nonlinear Least Squares for Monocular Stereo

no code implementations ECCV 2018 Ronald Clark, Michael Bloesch, Jan Czarnowski, Stefan Leutenegger, Andrew J. Davison

In this paper, we propose LS-Net, a neural nonlinear least squares optimization algorithm which learns to effectively optimize these cost functions even in the presence of adversities.

Learning to Solve Nonlinear Least Squares for Monocular Stereo

no code implementations ECCV 2018 Ronald Clark, Michael Bloesch, Jan Czarnowski, Stefan Leutenegger, Andrew J. Davison

In this paper, we propose a neural nonlinear least squares optimization algorithm which learns to effectively optimize these cost functions even in the presence of adversities.

CodeSLAM — Learning a Compact, Optimisable Representation for Dense Visual SLAM

1 code implementation CVPR 2018 Michael Bloesch, Jan Czarnowski, Ronald Clark, Stefan Leutenegger, Andrew J. Davison

Our approach is suitable for use in a keyframe-based monocular dense SLAM system: While each keyframe with a code can produce a depth map, the code can be optimised efficiently jointly with pose variables and together with the codes of overlapping keyframes to attain global consistency.

CodeSLAM - Learning a Compact, Optimisable Representation for Dense Visual SLAM

3 code implementations3 Apr 2018 Michael Bloesch, Jan Czarnowski, Ronald Clark, Stefan Leutenegger, Andrew J. Davison

Our approach is suitable for use in a keyframe-based monocular dense SLAM system: While each keyframe with a code can produce a depth map, the code can be optimised efficiently jointly with pose variables and together with the codes of overlapping keyframes to attain global consistency.

Semantic Texture for Robust Dense Tracking

no code implementations29 Aug 2017 Jan Czarnowski, Stefan Leutenegger, Andrew Davison

We argue that robust dense SLAM systems can make valuable use of the layers of features coming from a standard CNN as a pyramid of `semantic texture' which is suitable for dense alignment while being much more robust to nuisance factors such as lighting than raw RGB values.

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