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Xijun Zhao

7 accepted papers

2025

SCKD: Semi-Supervised Cross-Modality Knowledge Distillation for 4D Radar Object Detection

AAAI 2025technical

3D object detection is one of the fundamental perception tasks for autonomous vehicles. Fulfilling such a task with a 4D millimeter-wave radar is very attractive since the sensor is able to acquire 3D point clouds similar to Lidar while maintaining robust measurements under adverse weather. However,…

2024

TeFF: Tracking-enhanced Forgetting-free Few-shot 3D LiDAR Semantic Segmentation

IROS 2024

In autonomous driving, 3D LiDAR plays a crucial role in understanding the vehicle’s surroundings. However, the newly emerged, unannotated objects presents few-shot learning problem for semantic segmentation. This paper addresses the limitations of current few-shot semantic segmentation by exploiting

Cited by 2SourcecodeScholar
2023

TransAPR: Absolute Camera Pose Regression With Spatial and Temporal Attention

RA-L 2023

Visual relocalization aims to estimate the absolute camera pose from an image or sequential images. Recent works tackle this problem by exploiting deep neural networks to regress camera poses. However, spatial and temporal clues from sequential images still remain underexplored, resulting in inaccur

Cited by 9SourceScholar
2022

CVFNet: Real-time 3D Object Detection by Learning Cross View Features

IROS 2022poster

In recent years 3D object detection from LiDAR point clouds has made great progress thanks to the development of deep learning technologies. Although voxel or point based methods are popular in 3D object detection, they usually involve time-consuming operations such as 3D convolutions on voxels or b…

Cited by 20SourceScholar
2021

Fine-Grained Off-Road Semantic Segmentation and Mapping via Contrastive Learning

IROS 2021poster

Road detection or traversability analysis has been a key technique for a mobile robot to traverse complex off-road scenes. The problem has been mainly formulated in early works as a binary classification one, e.g. associating pixels with road or non-road labels. Whereas understanding scenes with fin…

Cited by 34SourceScholar