Search Results for author: Dongyue Chen

Found 8 papers, 4 papers with code

MMCL: Boosting Deformable DETR-Based Detectors with Multi-Class Min-Margin Contrastive Learning for Superior Prohibited Item Detection

1 code implementation5 Jun 2024 Mingyuan Li, Tong Jia, Hui Lu, Bowen Ma, Hao Wang, Dongyue Chen

Prohibited Item detection in X-ray images is one of the most effective security inspection methods. However, differing from natural light images, the unique overlapping phenomena in X-ray images lead to the coupling of foreground and background features, thereby lowering the accuracy of general object detectors. Therefore, we propose a Multi-Class Min-Margin Contrastive Learning (MMCL) method that, by clarifying the category semantic information of content queries under the deformable DETR architecture, aids the model in extracting specific category foreground information from coupled features. Specifically, after grouping content queries by the number of categories, we employ the Multi-Class Inter-Class Exclusion (MIE) loss to push apart content queries from different groups.

Contrastive Learning

Hierarchical Classification Auxiliary Network for Time Series Forecasting

1 code implementation29 May 2024 Yanru Sun, Zongxia Xie, Dongyue Chen, Emadeldeen Eldele, QinGhua Hu

In this work, we introduce a novel approach by tokenizing time series values to train forecasting models via cross-entropy loss, while considering the continuous nature of time series data.

Classification Time Series +1

AO-DETR: Anti-Overlapping DETR for X-Ray Prohibited Items Detection

1 code implementation7 Mar 2024 Mingyuan Li, Tong Jia, Hao Wang, Bowen Ma, Shuyang Lin, Da Cai, Dongyue Chen

Considering the significant overlapping phenomenon in X-ray prohibited item images, we propose an Anti-Overlapping DETR (AO-DETR) based on one of the state-of-the-art general object detectors, DINO.

Decoder

Mask-adaptive Gated Convolution and Bi-directional Progressive Fusion Network for Depth Completion

no code implementations15 Jan 2024 Tingxuan Huang, Jiacheng Miao, Shizhuo Deng, Tong, Dongyue Chen

Depth completion is a critical task for handling depth images with missing pixels, which can negatively impact further applications.

Decoder Depth Completion

Prior Knowledge Guided Network for Video Anomaly Detection

no code implementations4 Sep 2023 Zhewen Deng, Dongyue Chen, Shizhuo Deng

Video Anomaly Detection (VAD) involves detecting anomalous events in videos, presenting a significant and intricate task within intelligent video surveillance.

Anomaly Detection Knowledge Distillation +1

AGG-Net: Attention Guided Gated-convolutional Network for Depth Image Completion

1 code implementation ICCV 2023 Dongyue Chen, Tingxuan Huang, Zhimin Song, Shizhuo Deng, Tong Jia

In the encoding stage, an Attention Guided Gated-Convolution (AG-GConv) module is proposed to realize the fusion of depth and color features at different scales, which can effectively reduce the negative impacts of invalid depth data on the reconstruction.

Learning Deep Representations by Mutual Information for Person Re-identification

no code implementations16 Aug 2019 Peng Chen, Tong Jia, Pengfei Wu, Jianjun Wu, Dongyue Chen

Most existing person re-identification (ReID) methods have good feature representations to distinguish pedestrians with deep convolutional neural network (CNN) and metric learning methods.

Metric Learning Person Re-Identification

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