Search Results for author: Cédric Demonceaux

Found 17 papers, 7 papers with code

3DGS-Calib: 3D Gaussian Splatting for Multimodal SpatioTemporal Calibration

no code implementations18 Mar 2024 Quentin Herau, Moussab Bennehar, Arthur Moreau, Nathan Piasco, Luis Roldao, Dzmitry Tsishkou, Cyrille Migniot, Pascal Vasseur, Cédric Demonceaux

We introduce 3DGS-Calib, a new calibration method that relies on the speed and rendering accuracy of 3D Gaussian Splatting to achieve multimodal spatiotemporal calibration that is accurate, robust, and with a substantial speed-up compared to methods relying on implicit neural representations.

Sensor Fusion

SOAC: Spatio-Temporal Overlap-Aware Multi-Sensor Calibration using Neural Radiance Fields

no code implementations27 Nov 2023 Quentin Herau, Nathan Piasco, Moussab Bennehar, Luis Roldão, Dzmitry Tsishkou, Cyrille Migniot, Pascal Vasseur, Cédric Demonceaux

In this paper, we leverage the ability of Neural Radiance Fields (NeRF) to represent different sensors modalities in a common volumetric representation to achieve robust and accurate spatio-temporal sensor calibration.

Autonomous Driving

Joint 3D Shape and Motion Estimation from Rolling Shutter Light-Field Images

1 code implementation2 Nov 2023 Hermes McGriff, Renato Martins, Nicolas Andreff, Cédric Demonceaux

In this paper, we propose an approach to address the problem of 3D reconstruction of scenes from a single image captured by a light-field camera equipped with a rolling shutter sensor.

3D Reconstruction Motion Estimation

Alignment-free HDR Deghosting with Semantics Consistent Transformer

no code implementations ICCV 2023 Steven Tel, Zongwei Wu, Yulun Zhang, Barthélémy Heyrman, Cédric Demonceaux, Radu Timofte, Dominique Ginhac

The spatial attention aims to deal with the intra-image correlation to model the dynamic motion, while the channel attention enables the inter-image intertwining to enhance the semantic consistency across frames.

Image Generation

Object Segmentation by Mining Cross-Modal Semantics

1 code implementation17 May 2023 Zongwei Wu, Jingjing Wang, Zhuyun Zhou, Zhaochong An, Qiuping Jiang, Cédric Demonceaux, Guolei Sun, Radu Timofte

In this paper, we propose a novel approach by mining the Cross-Modal Semantics to guide the fusion and decoding of multimodal features, with the aim of controlling the modal contribution based on relative entropy.

Object Segmentation +2

Mobile Mapping Mesh Change Detection and Update

no code implementations13 Mar 2023 Teng Wu, Bruno Vallet, Cédric Demonceaux

However it has two drawbacks: 1) the old data may be of higher quality (resolution, precision) than the new and 2) the coverage of the scene might be different in various acquisitions, including varying occlusions.

Change Detection Time Series +1

HiDAnet: RGB-D Salient Object Detection via Hierarchical Depth Awareness

no code implementations18 Jan 2023 Zongwei Wu, Guillaume Allibert, Fabrice Meriaudeau, Chao Ma, Cédric Demonceaux

In this paper, from a new perspective, we propose a novel Hierarchical Depth Awareness network (HiDAnet) for RGB-D saliency detection.

object-detection RGB-D Salient Object Detection +2

Robust RGB-D Fusion for Saliency Detection

1 code implementation2 Aug 2022 Zongwei Wu, Shriarulmozhivarman Gobichettipalayam, Brahim Tamadazte, Guillaume Allibert, Danda Pani Paudel, Cédric Demonceaux

In this work, we aim for RGB-D saliency detection that is robust to the low-quality depths which primarily appear in two forms: inaccuracy due to noise and the misalignment to RGB.

Saliency Detection

Depth-Adapted CNNs for RGB-D Semantic Segmentation

no code implementations8 Jun 2022 Zongwei Wu, Guillaume Allibert, Christophe Stolz, Chao Ma, Cédric Demonceaux

Recent RGB-D semantic segmentation has motivated research interest thanks to the accessibility of complementary modalities from the input side.

Segmentation Semantic Segmentation

N-QGN: Navigation Map from a Monocular Camera using Quadtree Generating Networks

no code implementations24 Feb 2022 Daniel Braun, Olivier Morel, Pascal Vasseur, Cédric Demonceaux

Monocular depth estimation has been a popular area of research for several years, especially since self-supervised networks have shown increasingly good results in bridging the gap with supervised and stereo methods.

3D Reconstruction Autonomous Navigation +1

Unsupervised Learning of Category-Specific Symmetric 3D Keypoints from Point Sets

1 code implementation ECCV 2020 Clara Fernandez-Labrador, Ajad Chhatkuli, Danda Pani Paudel, Jose J. Guerrero, Cédric Demonceaux, Luc van Gool

This paper aims at learning category-specific 3D keypoints, in an unsupervised manner, using a collection of misaligned 3D point clouds of objects from an unknown category.

What's in my Room? Object Recognition on Indoor Panoramic Images

no code implementations14 Oct 2019 Julia Guerrero-Viu, Clara Fernandez-Labrador, Cédric Demonceaux, Jose J. Guerrero

In the last few years, there has been a growing interest in taking advantage of the 360 panoramic images potential, while managing the new challenges they imply.

Instance Segmentation Object +5

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