Search Results for author: Jun Cen

Found 19 papers, 15 papers with code

Calib3D: Calibrating Model Preferences for Reliable 3D Scene Understanding

1 code implementation25 Mar 2024 Lingdong Kong, Xiang Xu, Jun Cen, Wenwei Zhang, Liang Pan, Kai Chen, Ziwei Liu

Safety-critical 3D scene understanding tasks necessitate not only accurate but also confident predictions from 3D perception models.

Data Augmentation Scene Understanding

Consistent Prompting for Rehearsal-Free Continual Learning

1 code implementation13 Mar 2024 Zhanxin Gao, Jun Cen, Xiaobin Chang

Specifically, all existing classifiers are exposed to prompt training, resulting in classifier consistency learning.

Continual Learning

Using Left and Right Brains Together: Towards Vision and Language Planning

no code implementations16 Feb 2024 Jun Cen, Chenfei Wu, Xiao Liu, Shengming Yin, Yixuan Pei, Jinglong Yang, Qifeng Chen, Nan Duan, JianGuo Zhang

Large Language Models (LLMs) and Large Multi-modality Models (LMMs) have demonstrated remarkable decision masking capabilities on a variety of tasks.

Towards Few-shot Out-of-Distribution Detection

no code implementations20 Nov 2023 Jiuqing Dong, Yongbin Gao, Heng Zhou, Jun Cen, Yifan Yao, Sook Yoon, Park Dong Sun

Out-of-distribution (OOD) detection is critical for ensuring the reliability of open-world intelligent systems.

General Knowledge Out-of-Distribution Detection +2

CMDFusion: Bidirectional Fusion Network with Cross-modality Knowledge Distillation for LIDAR Semantic Segmentation

1 code implementation9 Jul 2023 Jun Cen, Shiwei Zhang, Yixuan Pei, Kun Li, Hang Zheng, Maochun Luo, Yingya Zhang, Qifeng Chen

In this way, RGB images are not required during inference anymore since the 2D knowledge branch provides 2D information according to the 3D LIDAR input.

Autonomous Vehicles Knowledge Distillation +2

SAD: Segment Any RGBD

1 code implementation23 May 2023 Jun Cen, Yizheng Wu, Kewei Wang, Xingyi Li, Jingkang Yang, Yixuan Pei, Lingdong Kong, Ziwei Liu, Qifeng Chen

The Segment Anything Model (SAM) has demonstrated its effectiveness in segmenting any part of 2D RGB images.

Open Vocabulary Semantic Segmentation Panoptic Segmentation +1

Enlarging Instance-specific and Class-specific Information for Open-set Action Recognition

1 code implementation CVPR 2023 Jun Cen, Shiwei Zhang, Xiang Wang, Yixuan Pei, Zhiwu Qing, Yingya Zhang, Qifeng Chen

In this paper, we begin with analyzing the feature representation behavior in the open-set action recognition (OSAR) problem based on the information bottleneck (IB) theory, and propose to enlarge the instance-specific (IS) and class-specific (CS) information contained in the feature for better performance.

Open Set Action Recognition

CLIP-guided Prototype Modulating for Few-shot Action Recognition

1 code implementation6 Mar 2023 Xiang Wang, Shiwei Zhang, Jun Cen, Changxin Gao, Yingya Zhang, Deli Zhao, Nong Sang

Learning from large-scale contrastive language-image pre-training like CLIP has shown remarkable success in a wide range of downstream tasks recently, but it is still under-explored on the challenging few-shot action recognition (FSAR) task.

Few-Shot action recognition Few Shot Action Recognition

The Devil is in the Wrongly-classified Samples: Towards Unified Open-set Recognition

1 code implementation8 Feb 2023 Jun Cen, Di Luan, Shiwei Zhang, Yixuan Pei, Yingya Zhang, Deli Zhao, Shaojie Shen, Qifeng Chen

Recently, Unified Open-set Recognition (UOSR) has been proposed to reject not only unknown samples but also known but wrongly classified samples, which tends to be more practical in real-world applications.

Open Set Learning

Learning a Condensed Frame for Memory-Efficient Video Class-Incremental Learning

no code implementations2 Nov 2022 Yixuan Pei, Zhiwu Qing, Jun Cen, Xiang Wang, Shiwei Zhang, Yaxiong Wang, Mingqian Tang, Nong Sang, Xueming Qian

The former is to reduce the memory cost by preserving only one condensed frame instead of the whole video, while the latter aims to compensate the lost spatio-temporal details in the Frame Condensing stage.

Action Recognition Class Incremental Learning +1

Attention Guided Network for Salient Object Detection in Optical Remote Sensing Images

1 code implementation5 Jul 2022 Yuhan Lin, Han Sun, Ningzhong Liu, Yetong Bian, Jun Cen, Huiyu Zhou

Specifically, the position enhancement stage consists of a semantic attention module and a contextual attention module to accurately describe the approximate location of salient objects.

object-detection Object Detection +2

Open-world Semantic Segmentation for LIDAR Point Clouds

1 code implementation4 Jul 2022 Jun Cen, Peng Yun, Shiwei Zhang, Junhao Cai, Di Luan, Michael Yu Wang, Ming Liu, Mingqian Tang

Current methods for LIDAR semantic segmentation are not robust enough for real-world applications, e. g., autonomous driving, since it is closed-set and static.

Autonomous Driving Incremental Learning +3

A lightweight multi-scale context network for salient object detection in optical remote sensing images

1 code implementation18 May 2022 Yuhan Lin, Han Sun, Ningzhong Liu, Yetong Bian, Jun Cen, Huiyu Zhou

Meanwhile, in order to accurately detect complete salient objects in complex backgrounds, we design an attention-based pyramid feature aggregation mechanism for gradually aggregating and refining the salient regions from the multi-scale context extraction module.

object-detection Object Detection +1

Open-set 3D Object Detection

no code implementations2 Dec 2021 Jun Cen, Peng Yun, Junhao Cai, Michael Yu Wang, Ming Liu

The first step is solved by the finding that unknown objects are often classified as known objects with low confidence, and we show that the Euclidean distance sum based on metric learning is a better confidence score than the naive softmax probability to differentiate unknown objects from known objects.

3D Object Detection Clustering +3

Deep Metric Learning for Open World Semantic Segmentation

1 code implementation ICCV 2021 Jun Cen, Peng Yun, Junhao Cai, Michael Yu Wang, Ming Liu

Incrementally learning these OOD objects with few annotations is an ideal way to enlarge the knowledge base of the deep learning models.

Autonomous Driving Few-Shot Learning +3

MPI: Multi-receptive and Parallel Integration for Salient Object Detection

1 code implementation8 Aug 2021 Han Sun, Jun Cen, Ningzhong Liu, Dong Liang, Huiyu Zhou

The semantic representation of deep features is essential for image context understanding, and effective fusion of features with different semantic representations can significantly improve the model's performance on salient object detection.

Object object-detection +2

BORM: Bayesian Object Relation Model for Indoor Scene Recognition

1 code implementation1 Aug 2021 Liguang Zhou, Jun Cen, Xingchao Wang, Zhenglong Sun, Tin Lun Lam, Yangsheng Xu

First, we utilize an improved object model (IOM) as a baseline that enriches the object knowledge by introducing a scene parsing algorithm pretrained on the ADE20K dataset with rich object categories related to the indoor scene.

Object Relation +1

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