Search Results for author: Tristan Braud

Found 13 papers, 5 papers with code

GSLoc: Efficient Camera Pose Refinement via 3D Gaussian Splatting

no code implementations20 Aug 2024 Changkun Liu, Shuai Chen, Yash Bhalgat, Siyan Hu, Ming Cheng, ZiRui Wang, Victor Adrian Prisacariu, Tristan Braud

We leverage 3D Gaussian Splatting (3DGS) as a scene representation and propose a novel test-time camera pose refinement framework, GSLoc.

Pose Estimation regression +1

AIR-HLoc: Adaptive Retrieved Images Selection for Efficient Visual Localisation

no code implementations27 Mar 2024 Changkun Liu, Jianhao Jiao, Huajian Huang, Zhengyang Ma, Dimitrios Kanoulas, Tristan Braud

State-of-the-art hierarchical localisation pipelines (HLoc) employ image retrieval (IR) to establish 2D-3D correspondences by selecting the top-$k$ most similar images from a reference database.

Image Retrieval Retrieval

MobileARLoc: On-device Robust Absolute Localisation for Pervasive Markerless Mobile AR

no code implementations21 Jan 2024 Changkun Liu, Yukun Zhao, Tristan Braud

To address APR accuracy and reduce VIO drift, MobileARLoc creates a feedback loop where VIO pose estimations refine the APR predictions.

Camera Pose Estimation Pose Estimation

360Loc: A Dataset and Benchmark for Omnidirectional Visual Localization with Cross-device Queries

1 code implementation CVPR 2024 Huajian Huang, Changkun Liu, Yipeng Zhu, Hui Cheng, Tristan Braud, Sai-Kit Yeung

We propose a virtual camera approach to generate lower-FoV query frames from 360$^\circ$ images, which ensures a fair comparison of performance among different query types in visual localization tasks.

Visual Localization

AI Nushu: An Exploration of Language Emergence in Sisterhood -Through the Lens of Computational Linguistics

no code implementations18 Oct 2023 Yuqian Sun, Yuying Tang, Ze Gao, Zhijun Pan, Chuyan Xu, Yurou Chen, Kejiang Qian, Zhigang Wang, Tristan Braud, Chang Hee Lee, Ali Asadipour

This paper presents "AI Nushu," an emerging language system inspired by Nushu (women's scripts), the unique language created and used exclusively by ancient Chinese women who were thought to be illiterate under a patriarchal society.

KS-APR: Keyframe Selection for Robust Absolute Pose Regression

no code implementations10 Aug 2023 Changkun Liu, Yukun Zhao, Tristan Braud

However, APR methods tend to yield significant inaccuracies for input images that are too distant from the training set.

regression Visual Localization

Twitter Dataset for 2022 Russo-Ukrainian Crisis

1 code implementation6 Mar 2022 Ehsan-Ul Haq, Gareth Tyson, Lik-Hang Lee, Tristan Braud, Pan Hui

Such information sharing campaigns can range from spreading factual information to propaganda and misinformation.

Misinformation

DRLE: Decentralized Reinforcement Learning at the Edge for Traffic Light Control in the IoV

1 code implementation3 Sep 2020 Pengyuan Zhou, Xianfu Chen, Zhi Liu, Tristan Braud, Pan Hui, Jussi Kangasharju

To this end, we propose a Decentralized Reinforcement Learning at the Edge for traffic light control in the IoV (DRLE).

Edge-computing Management +3

Multipath Computation Offloading for Mobile Augmented Reality

1 code implementation23 Mar 2020 Tristan Braud, Pengyuan Zhou, Jussi Kangasharju, and Pan HUI

With only 70% WiFi availability, our system keeps the excess latency below 9 ms. We finally evaluate the capabilities of the upcoming 5G and 802. 11ax

Edge-computing Scheduling

Marketplace for AI Models

no code implementations3 Mar 2020 Abhishek Kumar, Benjamin Finley, Tristan Braud, Sasu Tarkoma, Pan Hui

Artificial intelligence shows promise for solving many practical societal problems in areas such as healthcare and transportation.

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