Search Results for author: Fangcen Liu

Found 7 papers, 2 papers with code

Are Dense Labels Always Necessary for 3D Object Detection from Point Cloud?

no code implementations5 Mar 2024 Chenqiang Gao, Chuandong Liu, Jun Shu, Fangcen Liu, Jiang Liu, Luyu Yang, Xinbo Gao, Deyu Meng

Current state-of-the-art (SOTA) 3D object detection methods often require a large amount of 3D bounding box annotations for training.

3D Object Detection object-detection +1

DAMSDet: Dynamic Adaptive Multispectral Detection Transformer with Competitive Query Selection and Adaptive Feature Fusion

no code implementations1 Mar 2024 Junjie Guo, Chenqiang Gao, Fangcen Liu, Deyu Meng, Xinbo Gao

To effectively mine the complementary information and adapt to misalignment situations, we propose a Multispectral Deformable Cross-attention module to adaptively sample and aggregate multi-semantic level features of infrared and visible images for each object.

Object object-detection +1

InfMAE: A Foundation Model in Infrared Modality

no code implementations1 Feb 2024 Fangcen Liu, Chenqiang Gao, Yaming Zhang, Junjie Guo, Jinhao Wang, Deyu Meng

Finally, based on the fact that infrared images do not have a lot of details and texture information, we design an infrared decoder module, which further improves the performance of downstream tasks.

Self-Supervised Learning

SS3D: Sparsely-Supervised 3D Object Detection From Point Cloud

no code implementations CVPR 2022 Chuandong Liu, Chenqiang Gao, Fangcen Liu, Jiang Liu, Deyu Meng, Xinbo Gao

In the meantime, we design a reliable background mining module and a point cloud filling data augmentation strategy to generate the confident data for iteratively learning with reliable supervision.

3D Object Detection Data Augmentation +2

Infrared Small-Dim Target Detection with Transformer under Complex Backgrounds

no code implementations29 Sep 2021 Fangcen Liu, Chenqiang Gao, Fang Chen, Deyu Meng, WangMeng Zuo, Xinbo Gao

We adopt the self-attention mechanism of the transformer to learn the interaction information of image features in a larger range.

Local Patch Network with Global Attention for Infrared Small Target Detection

1 code implementation13 Aug 2021 Fang Chen, Chenqiang Gao, Fangcen Liu, Yue Zhao, Yuxi Zhou, Deyu Meng, WangMeng Zuo

A local patch network (LPNet) with global attention is proposed in this paper to detect small targets by jointly considering the global and local properties of infrared small target images.

Semantic Segmentation

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