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Lijun Zhao

15 accepted papers

2026

ActivePolicy: Active Gaussian Reconstruction and Optimization Strategy Based on Global-Local Information Gain

CVPR 2026

Active 3D Gaussian reconstruction achieves superior completeness and rendering quality by intelligently selecting viewpoints. However, existing methods suffer from two critical limitations: information gain metrics that prioritize geometric coverage while ignoring rendering quality, and overfitting

Cited by 0SourceScholar
2026

H^2A^2: Homogeneity-Aware and Heterogeneity-Aware Feature Perception for Unified Indoor 3D Object Detection

CVPR 2026

In this work, we observe that for indoor 3D object detection, fundamental geometric cues induce homogeneous spatial responses across scenes, whereas scene-specific structure yields heterogeneous signatures. However, existing detectors lack effective mechanisms to jointly extract and exploit such dua

Cited by 0SourceScholar
2026

LiDAR Prompted Spatio-Temporal Multi-View Stereo for Autonomous Driving

CVPR 2026

Accurate metric depth is critical for autonomous driving perception and simulation, yet current approaches struggle to achieve high metric accuracy, multi-view and temporal consistency, and cross-domain generalization. To address these challenges, we present DriveMVS, a novel multi-view stereo frame

Cited by 0SourcecodeScholar
2026

Rethinking the Spatio-Temporal Alignment of End-to-End 3D Perception

AAAI 2026technical

Spatio-temporal alignment is crucial for temporal modeling of end-to-end (E2E) perception in autonomous driving (AD), providing valuable structural and textural prior information. Existing methods typically rely on the attention mechanism to align objects across frames, simplifying the motion model

Cited by 0SourcePDFScholar
2024

Fast-Poly: A Fast Polyhedral Algorithm for 3D Multi-Object Tracking

RA-L 2024

3D Multi-Object Tracking (MOT) captures stable and comprehensive motion states of surrounding obstacles, essential for robotic perception. However, current 3D trackers face issues with accuracy and latency consistency. In this letter, we propose Fast-Poly, a fast and effective filter-based method fo

Cited by 16SourceScholar
2024

I2EKF-LO: A Dual-Iteration Extended Kalman Filter Based LiDAR Odometry

IROS 2024poster

LiDAR odometry is a pivotal technology in the fields of autonomous driving and autonomous mobile robotics. However, most of the current works focus on nonlinear optimization methods, and still existing many challenges in using the traditional Iterative Extended Kalman Filter (IEKF) framework to tack…

Cited by 10SourcecodeScholar
2024

LiDAR-Link: Observability-Aware Probabilistic Plane-Based Extrinsic Calibration for Non-Overlapping Solid-State LiDARs

RA-L 2024

As solid-state LiDAR technology advances, mobile robotics and autonomous driving increasingly rely on multiple solid-state LiDARs for perception. However, limited or non-overlapping fields of view (FoV) among these sensors pose significant challenges for extrinsic calibration. Moreover, there are no

Cited by 9SourceScholar
2024

SACNet: A Scattered Attention-Based Network With Feature Compensator for Visual Localization

RA-L 2024

Visual localization, an integral component of a vast array of computer applications, has been effectively resolved by scene coordinate regression (SCoRe) methods. However, due to the limited receptive field of convolutional neural networks (CNNs), current SCoRe methods have difficulty in distinguish

Cited by 4SourceScholar
2023

CO-Net: Learning Multiple Point Cloud Tasks at Once with A Cohesive Network

ICCV 2023poster

We present CO-Net, a cohesive framework that optimizes multiple point cloud tasks collectively across heterogeneous dataset domains. CO-Net maintains the characteristics of high storage efficiency since models with the preponderance of shared parameters can be assembled into a single model. Specific…

Cited by 7PDFScholar
2023

OFVL-MS: Once for Visual Localization across Multiple Indoor Scenes

ICCV 2023poster

In this work, we seek to predict camera poses across scenes with a multi-task learning manner, where we view the localization of each scene as a new task. We propose OFVL-MS, a unified framework that dispenses with the traditional practice of training a model for each individual scene and relieves…

Cited by 11PDFcodeScholar
2023

Poly-MOT: A Polyhedral Framework For 3D Multi-Object Tracking

IROS 2023poster

3D Multi-object tracking (MOT) empowers mobile robots to accomplish well-informed motion planning and navigation tasks by providing motion trajectories of surrounding objects. However, existing 3D MOT methods typically employ a single similarity metric and physical model to perform data association…

Cited by 38SourcecodeScholar
2022

A Deep Feature Aggregation Network for Accurate Indoor Camera Localization

RA-L 2022

As scene coordinate regression (SCoRe) methods become prevailing in the area of visual camera localization, the issue of repetitive or sparse texture scenes continues to be a concern. Specifically, they will suffer from performance degeneration due to ambiguous patterns caused by visual similarity.

Cited by 23SourceScholar
2022

CamMap: Extrinsic Calibration of Non-Overlapping Cameras Based on SLAM Map Alignment

RA-L 2022

Multiple cameras have emerged as a promising technology for robots and vehicles due to their broad fields of view (FoV) and high resolution. However, there are often limited or no overlapping FoVs among cameras, bringing challenges to estimating extrinsic camera parameters. To overcome this problem,

Cited by 12SourceScholar
2022

PANet: A Pixel-Level Attention Network for 6D Pose Estimation With Embedding Vector Features

RA-L 2022

In this work, we present PANet, a pixel-level attention network with embedding vector features, which addresses the challenge of 6D pose estimation from a single RGBD image under severe occlusion. PANet produces pixel-wise attention for strong representation learning and leverages a novel selection

Cited by 12SourceScholar