no code implementations • 20 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.
no code implementations • 27 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.
1 code implementation • 22 Feb 2024 • Changkun Liu, Shuai Chen, Yukun Zhao, Huajian Huang, Victor Prisacariu, Tristan Braud
In addition, we take advantage of the uncertainty for pose refinement to enhance the performance of APR.
no code implementations • 21 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.
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.
no code implementations • 20 Oct 2023 • Ze Gao, Xiang Li, Changkun Liu, Xian Wang, Anqi Wang, Liang Yang, Yuyang Wang, Pan Hui, Tristan Braud
We present VR PreM+, an innovative VR system designed to enhance web exploration beyond traditional computer screens.
no code implementations • 18 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.
no code implementations • 10 Aug 2023 • Changkun Liu, Yukun Zhao, Tristan Braud
However, VIO only tracks the relative pose of the device, leading to drift over time.
no code implementations • 10 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.
1 code implementation • 6 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.
1 code implementation • 3 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).
1 code implementation • 23 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
no code implementations • 3 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.