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Liangji Fang

7 accepted papers

2023

BEVDistill: Cross-Modal BEV Distillation for Multi-View 3D Object Detection

ICLR 2023poster

3D object detection from multiple image views is a fundamental and challenging task for visual scene understanding. Owing to its low cost and high efficiency, multi-view 3D object detection has demonstrated promising application prospects. However, accurately detecting objects through perspective vi…

2022

AutoAlign: Pixel-Instance Feature Aggregation for Multi-Modal 3D Object Detection

IJCAI 2022poster

Object detection through either RGB images or the LiDAR point clouds has been extensively explored in autonomous driving. However, it remains challenging to make these two data sources complementary and beneficial to each other. In this paper, we propose AutoAlign, an automatic feature fusion strat…

Cited by 140SourcePDFScholar
2022

Deformable Feature Aggregation for Dynamic Multi-modal 3D Object Detection

ECCV 2022poster

"Point clouds and RGB images are two general perceptional sources in autonomous driving. The former can provide accurate localization of objects, and the latter is denser and richer in semantic information. Recently, AutoAlign presents a learnable paradigm in combining these two modalities for 3D ob…

2022

SimIPU: Simple 2D Image and 3D Point Cloud Unsupervised Pre-training for Spatial-Aware Visual Representations

AAAI 2022technical

Pre-training has become a standard paradigm in many computer vision tasks. However, most of the methods are generally designed on the RGB image domain. Due to the discrepancy between the two-dimensional image plane and the three-dimensional space, such pre-trained models fail to perceive spatial inf…

2022

Unsupervised Domain Adaptation for Monocular 3D Object Detection via Self-Training

ECCV 2022poster

"Monocular 3D object detection (Mono3D) has achieved unprecedented success with the advent of deep learning techniques and emerging large-scale autonomous driving datasets. However, drastic performance degradation remains an unwell-studied challenge for practical cross-domain deployment as the lack…

2021

Multimodal Motion Prediction With Stacked Transformers

CVPR 2021poster

Predicting multiple plausible future trajectories of the nearby vehicles is crucial for the safety of autonomous driving. Recent motion prediction approaches attempt to achieve such multimodal motion prediction by implicitly regularizing the feature or explicitly generating multiple candidate propos…

Cited by 481PDFcodeScholar