Search Results for author: Yigang Cen

Found 10 papers, 3 papers with code

Patch Spatio-Temporal Relation Prediction for Video Anomaly Detection

no code implementations28 Mar 2024 Hao Shen, Lu Shi, Wanru Xu, Yigang Cen, Linna Zhang, Gaoyun An

To mitigate memory consumption, we convert the order information prediction task into a multi-label learning problem, and the inter-patch similarity prediction task into a distance matrix regression problem.

Anomaly Detection Multi-Label Learning +3

Unsupervised Collaborative Metric Learning with Mixed-Scale Groups for General Object Retrieval

1 code implementation16 Mar 2024 Shichao Kan, Yuhai Deng, Yixiong Liang, Lihui Cen, Zhe Qu, Yigang Cen, Zhihai He

This paper presents a novel unsupervised deep metric learning approach, termed unsupervised collaborative metric learning with mixed-scale groups (MS-UGCML), devised to learn embeddings for objects of varying scales.

Metric Learning Object +1

Contrastive Bayesian Analysis for Deep Metric Learning

1 code implementation10 Oct 2022 Shichao Kan, Zhiquan He, Yigang Cen, Yang Li, Vladimir Mladenovic, Zhihai He

Recent methods for deep metric learning have been focusing on designing different contrastive loss functions between positive and negative pairs of samples so that the learned feature embedding is able to pull positive samples of the same class closer and push negative samples from different classes away from each other.

Contrastive Learning Metric Learning

Coded Residual Transform for Generalizable Deep Metric Learning

no code implementations9 Oct 2022 Shichao Kan, Yixiong Liang, Min Li, Yigang Cen, Jianxin Wang, Zhihai He

To address this challenge, in this paper, we introduce a new method called coded residual transform (CRT) for deep metric learning to significantly improve its generalization capability.

Metric Learning

LighTN: Light-weight Transformer Network for Performance-overhead Tradeoff in Point Cloud Downsampling

no code implementations13 Feb 2022 Xu Wang, Yi Jin, Yigang Cen, Tao Wang, Bowen Tang, Yidong Li

Compared with traditional task-irrelevant downsampling methods, task-oriented neural networks have shown improved performance in point cloud downsampling range.

Relative Order Analysis and Optimization for Unsupervised Deep Metric Learning

no code implementations CVPR 2021 Shichao Kan, Yigang Cen, Yang Li, Vladimir Mladenovic, Zhihai He

During training, this relative order prediction network and the feature embedding network are tightly coupled, providing mutual constraints to each other to improve overall metric learning performance in a cooperative manner.

Image Retrieval Metric Learning +1

Attention Models for Point Clouds in Deep Learning: A Survey

no code implementations22 Feb 2021 Xu Wang, Yi Jin, Yigang Cen, Tao Wang, Yidong Li

Recently, the advancement of 3D point clouds in deep learning has attracted intensive research in different application domains such as computer vision and robotic tasks.

3D Pose Estimation 3D Semantic Segmentation

A GAN-Based Input-Size Flexibility Model for Single Image Dehazing

no code implementations19 Feb 2021 Shichao Kan, Yue Zhang, Fanghui Zhang, Yigang Cen

Based on the atmospheric scattering model, a novel model is designed to directly generate the haze-free image.

Generative Adversarial Network Image Dehazing +4

Progressive Neural Networks for Image Classification

no code implementations25 Apr 2018 Zhi Zhang, Guanghan Ning, Yigang Cen, Yang Li, Zhiqun Zhao, Hao Sun, Zhihai He

The inference structures and computational complexity of existing deep neural networks, once trained, are fixed and remain the same for all test images.

Classification General Classification +1

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