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Zhiqiang Cao

8 accepted papers

2025

A Novel LiDAR Odometry Based on Surface Distributed Point Feature with Dual Feature Fusion

IROS 2025

LiDAR odometry has gained popularity due to the LiDAR sensor’s accurate depth measurement and robustness to varying illumination conditions. The feature-based methods achieve the advantage of efficiency through feature extraction, while the distribution-based ones attain better accuracy by modeling

Cited by 0SourceScholar
2025

Target Localization and Following Based on LiDAR and Ultra-Wideband Ranging with Consideration of Target Visibility

IROS 2025

To perform target-following tasks in unknown environments, a robot must identify the target’s position and plan an efficient path to reach it. Traditional LiDAR-based localization systems face challenges in distinguishing the target from objects with similar appearances. Meanwhile, existing target-f

Cited by 0SourceScholar
2024

LF-ViT: Reducing Spatial Redundancy in Vision Transformer for Efficient Image Recognition

AAAI 2024technical

The Vision Transformer (ViT) excels in accuracy when handling high-resolution images, yet it confronts the challenge of significant spatial redundancy, leading to increased computational and memory requirements. To address this, we present the Localization and Focus Vision Transformer (LF-ViT). This…

2022

Distributed Ranging SLAM for Multiple Robots with Ultra-WideBand and Odometry Measurements

IROS 2022poster

To accomplish task efficiently in a multiple robots system, a problem that has to be addressed is Simultaneous Localization and Mapping (SLAM). LiDAR (Light Detection and Ranging) has been used for many SLAM solutions due to its superb accuracy, but its performance degrades in featureless environmen…

Cited by 22SourceScholar
2021

A Collaborative Visual SLAM Framework for Service Robots

IROS 2021poster

We present a collaborative visual simultaneous localization and mapping (SLAM) framework for service robots. With an edge server maintaining a map database and performing global optimization, each robot can register to an existing map, update the map, or build new maps, all with a unified interface…

Cited by 25SourceScholar
2021

Relative Localization of Mobile Robots with Multiple Ultra-WideBand Ranging Measurements

IROS 2021poster

Relative localization between autonomous robots without infrastructure is crucial to achieve their navigation, path planning, and formation in many applications, such as emergency response, where acquiring a prior knowledge of the environment is not possible. The traditional Ultra-WideBand (UWB)-bas…

Cited by 42SourceScholar
2021

Scene Coordinate Regression Network With Global Context-Guided Spatial Feature Transformation for Visual Relocalization

RA-L 2021

Among visual relocalization from a single RGB image, the scene coordinate regression (SCoRe) based on convolutional neural network (CNN) becomes prevailing, however, it is insufficient to extract invariant features under different viewpoints due to fixed geometric structures of CNN. In this letter,

Cited by 19SourceScholar