Search Results for author: Zhiming Luo

Found 23 papers, 15 papers with code

Selective Domain-Invariant Feature for Generalizable Deepfake Detection

no code implementations19 Mar 2024 Yingxin Lai, Guoqing Yang Yifan He, Zhiming Luo, Shaozi Li

To solve this problem, we proposed a novel framework Selective Domain-Invariant Feature (SDIF), which reduces the sensitivity to face forgery by fusing content features and styles.

DeepFake Detection Face Swapping

A Multilevel Guidance-Exploration Network and Behavior-Scene Matching Method for Human Behavior Anomaly Detection

1 code implementation7 Dec 2023 Guoqing Yang, Zhiming Luo, Jianzhe Gao, Yingxin Lai, Kun Yang, Yifan He, Shaozi Li

Human behavior anomaly detection aims to identify unusual human actions, playing a crucial role in intelligent surveillance and other areas.

Anomaly Detection

Zero-Shot Co-salient Object Detection Framework

1 code implementation11 Sep 2023 Haoke Xiao, Lv Tang, Bo Li, Zhiming Luo, Shaozi Li

Despite recent advancements in deep learning models, these models still rely on training with well-annotated CoSOD datasets.

Co-Salient Object Detection Object +2

Boundary Difference Over Union Loss For Medical Image Segmentation

1 code implementation1 Aug 2023 Fan Sun, Zhiming Luo, Shaozi Li

However, current losses for medical image segmentation mainly focus on overall segmentation results, with fewer losses proposed to guide boundary segmentation.

Image Segmentation Medical Image Segmentation +2

Detect Any Deepfakes: Segment Anything Meets Face Forgery Detection and Localization

1 code implementation29 Jun 2023 Yingxin Lai, Zhiming Luo, Zitong Yu

The rapid advancements in computer vision have stimulated remarkable progress in face forgery techniques, capturing the dedicated attention of researchers committed to detecting forgeries and precisely localizing manipulated areas.

DeepFake Detection Face Swapping

Comparative Evaluation of Recent Universal Adversarial Perturbations in Image Classification

no code implementations20 Jun 2023 Juanjuan Weng, Zhiming Luo, Dazhen Lin, Shaozi Li

Furthermore, we conduct a comprehensive evaluation of different loss functions within consistent training frameworks, including noise-based and generator-based.

Image Classification

Boosting Adversarial Transferability via Fusing Logits of Top-1 Decomposed Feature

1 code implementation2 May 2023 Juanjuan Weng, Zhiming Luo, Dazhen Lin, Shaozi Li, Zhun Zhong

Recent research has shown that Deep Neural Networks (DNNs) are highly vulnerable to adversarial samples, which are highly transferable and can be used to attack other unknown black-box models.

Adversarial Attack

Logit Margin Matters: Improving Transferable Targeted Adversarial Attack by Logit Calibration

2 code implementations7 Mar 2023 Juanjuan Weng, Zhiming Luo, Zhun Zhong, Shaozi Li, Nicu Sebe

In this work, we provide a comprehensive investigation of the CE loss function and find that the logit margin between the targeted and untargeted classes will quickly obtain saturation in CE, which largely limits the transferability.

Adversarial Attack

Joint Representation Learning and Keypoint Detection for Cross-view Geo-localization

1 code implementation IEEE Transactions on Image Processing (TIP) 2022 Jinliang Lin, Zhedong Zheng, Zhun Zhong, Zhiming Luo, Shaozi Li, Yi Yang, Nicu Sebe

Inspired by the human visual system for mining local patterns, we propose a new framework called RK-Net to jointly learn the discriminative Representation and detect salient Keypoints with a single Network.

Drone navigation Drone-view target localization +3

Federated and Generalized Person Re-identification through Domain and Feature Hallucinating

no code implementations5 Mar 2022 Fengxiang Yang, Zhun Zhong, Zhiming Luo, Shaozi Li, Nicu Sebe

During local training, the DFS are used to synthesize novel domain statistics with the proposed domain hallucinating, which is achieved by re-weighting DFS with random weights.

Domain Generalization Person Re-Identification

Cross-Modality Earth Mover's Distance for Visible Thermal Person Re-Identification

no code implementations3 Mar 2022 Yongguo Ling, Zhun Zhong, Donglin Cao, Zhiming Luo, Yaojin Lin, Shaozi Li, Nicu Sebe

In this manner, the model will focus on reducing the inter-modality discrepancy while paying less attention to intra-identity variations, leading to a more effective modality alignment.

Person Re-Identification

Neighborhood Contrastive Learning for Novel Class Discovery

1 code implementation CVPR 2021 Zhun Zhong, Enrico Fini, Subhankar Roy, Zhiming Luo, Elisa Ricci, Nicu Sebe

In this paper, we address Novel Class Discovery (NCD), the task of unveiling new classes in a set of unlabeled samples given a labeled dataset with known classes.

Clustering Contrastive Learning +1

Source-Free Open Compound Domain Adaptation in Semantic Segmentation

1 code implementation7 Jun 2021 Yuyang Zhao, Zhun Zhong, Zhiming Luo, Gim Hee Lee, Nicu Sebe

Second, CPSS can reduce the influence of noisy pseudo-labels and also avoid the model overfitting to the target domain during self-supervised learning, consistently boosting the performance on the target and open domains.

Domain Generalization Self-Supervised Learning +1

Learning to Generalize Unseen Domains via Memory-based Multi-Source Meta-Learning for Person Re-Identification

1 code implementation CVPR 2021 Yuyang Zhao, Zhun Zhong, Fengxiang Yang, Zhiming Luo, Yaojin Lin, Shaozi Li, Nicu Sebe

In this paper, we study the problem of multi-source domain generalization in ReID, which aims to learn a model that can perform well on unseen domains with only several labeled source domains.

Domain Generalization Meta-Learning +1

Asymmetric Co-Teaching for Unsupervised Cross Domain Person Re-Identification

1 code implementation3 Dec 2019 Fengxiang Yang, Ke Li, Zhun Zhong, Zhiming Luo, Xing Sun, Hao Cheng, Xiaowei Guo, Feiyue Huang, Rongrong Ji, Shaozi Li

This procedure encourages that the selected training samples can be both clean and miscellaneous, and that the two models can promote each other iteratively.

Clustering Miscellaneous +2

Learning to Adapt Invariance in Memory for Person Re-identification

no code implementations1 Aug 2019 Zhun Zhong, Liang Zheng, Zhiming Luo, Shaozi Li, Yi Yang

This work considers the problem of unsupervised domain adaptation in person re-identification (re-ID), which aims to transfer knowledge from the source domain to the target domain.

Person Re-Identification Unsupervised Domain Adaptation

Leveraging Virtual and Real Person for Unsupervised Person Re-identification

1 code implementation5 Nov 2018 Fengxiang Yang, Zhun Zhong, Zhiming Luo, Sheng Lian, Shaozi Li

For training of deep re-ID model, we divide it into three steps: 1) pre-training a coarse re-ID model by using virtual data; 2) collaborative filtering based positive pair mining from the real data; and 3) fine-tuning of the coarse re-ID model by leveraging the mined positive pairs and virtual data.

Collaborative Filtering Style Transfer +1

GridNet with automatic shape prior registration for automatic MRI cardiac segmentation

no code implementations24 May 2017 Clement Zotti, Zhiming Luo, Alain Lalande, Olivier Humbert, Pierre-Marc Jodoin

In this paper, we propose a fully automatic MRI cardiac segmentation method based on a novel deep convolutional neural network (CNN) designed for the 2017 ACDC MICCAI challenge.

Anatomy Cardiac Segmentation +2

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