Search Results for author: Javier Gonzalez-Jimenez

Found 11 papers, 3 papers with code

The Robot@Home2 dataset: A new release with improved usability tools

1 code implementation SoftwareX 2023 Gregorio Ambrosio-Cestero, Jose-Raul Ruiz-Sarmiento, Javier Gonzalez-Jimenez

Released in 2017, Robot@Home is a dataset captured by a mobile robot during indoor navigation sessions in apartments.

Fast and Robust Certifiable Estimation of the Relative Pose Between Two Calibrated Cameras

2 code implementations21 Jan 2021 Mercedes Garcia-Salguero, Javier Gonzalez-Jimenez

This work contributes an efficient algorithm to compute the Relative Pose problem (RPp) between calibrated cameras and certify the optimality of the solution, given a set of pair-wise feature correspondences affected by noise and probably corrupted by wrong matches.

Pose Estimation

Certifiable Relative Pose Estimation

no code implementations30 Mar 2020 Mercedes Garcia-Salguero, Jesus Briales, Javier Gonzalez-Jimenez

The optimality of the solution is then checked via our novel fast certifier.

Pose Estimation

Intrinsic Calibration of Depth Cameras for Mobile Robots using a Radial Laser Scanner

no code implementations3 Jul 2019 David Zuñiga-Noël, Jose-Raul Ruiz-Sarmiento, Javier Gonzalez-Jimenez

Depth cameras, typically in RGB-D configurations, are common devices in mobile robotic platforms given their appealing features: high frequency and resolution, low price and power requirements, among others.

Local Distortion

Geometric-based Line Segment Tracking for HDR Stereo Sequences

no code implementations25 Sep 2018 Ruben Gomez-Ojeda, Javier Gonzalez-Jimenez

In this work, we propose a purely geometrical approach for the robust matching of line segments for challenging stereo streams with severe illumination changes or High Dynamic Range (HDR) environments.

Visual Odometry

A Certifiably Globally Optimal Solution to the Non-Minimal Relative Pose Problem

no code implementations CVPR 2018 Jesus Briales, Laurent Kneip, Javier Gonzalez-Jimenez

Finding the relative pose between two calibrated views ranks among the most fundamental geometric vision problems.

Learning-based Image Enhancement for Visual Odometry in Challenging HDR Environments

no code implementations5 Jul 2017 Ruben Gomez-Ojeda, Zichao Zhang, Javier Gonzalez-Jimenez, Davide Scaramuzza

One of the main open challenges in visual odometry (VO) is the robustness to difficult illumination conditions or high dynamic range (HDR) environments.

Image Enhancement Visual Odometry

Convex Global 3D Registration With Lagrangian Duality

no code implementations CVPR 2017 Jesus Briales, Javier Gonzalez-Jimenez

Thus, our approach allows for effectively solving the 3D registration with global optimality guarantees while running at a fraction of the time for the state-of-the-art alternative [34], based on a more computationally intensive Branch and Bound method.

An Efficient Background Term for 3D Reconstruction and Tracking With Smooth Surface Models

no code implementations CVPR 2017 Mariano Jaimez, Thomas J. Cashman, Andrew Fitzgibbon, Javier Gonzalez-Jimenez, Daniel Cremers

We present a novel strategy to shrink and constrain a 3D model, represented as a smooth spline-like surface, within the visual hull of an object observed from one or multiple views.

3D Reconstruction Object +2

PL-SLAM: a Stereo SLAM System through the Combination of Points and Line Segments

3 code implementations26 May 2017 Ruben Gomez-Ojeda, David Zuñiga-Noël, Francisco-Angel Moreno, Davide Scaramuzza, Javier Gonzalez-Jimenez

This paper proposes PL-SLAM, a stereo visual SLAM system that combines both points and line segments to work robustly in a wider variety of scenarios, particularly in those where point features are scarce or not well-distributed in the image.

C++ code Descriptive +1

Training a Convolutional Neural Network for Appearance-Invariant Place Recognition

no code implementations27 May 2015 Ruben Gomez-Ojeda, Manuel Lopez-Antequera, Nicolai Petkov, Javier Gonzalez-Jimenez

In order for the network to learn the desired invariances, we train it with triplets of images selected from datasets which present a challenging variability in visual appearance.

Autonomous Driving

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