Search Results for author: Changkun Liu

Found 7 papers, 1 papers with code

AIR-HLoc: Adaptive Image Retrieval for Efficient Visual Localisation

no code implementations27 Mar 2024 Changkun Liu, Huajian Huang, Zhengyang Ma, Tristan Braud

State-of-the-art (SOTA) hierarchical localisation pipelines (HLoc) rely on image retrieval (IR) techniques to establish 2D-3D correspondences by selecting the $k$ most similar images from a reference image database for a given query image.

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.

Pose Estimation

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

no code implementations29 Nov 2023 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

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

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