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Shicai Yang

17 accepted papers

2025

Training-Free Test-Time Adaptation via Shape and Style Guidance for Vision-Language Models

NeurIPS 2025poster

Test-time adaptation with pre-trained vision-language models shows impressive zero-shot classification abilities, and training-free methods further improve the performance without any optimization burden. However, existing training-free test-time adaptation methods typically rely on entropy criteria…

Cited by 0SourceScholar
2025

VQCounter: Designing Visual Prompt Queue for Accurate Open-World Counting

IJCAI 2025

Class-agnostic counting enables enumerating arbitrary object classes beyond those seen during training. Recent studies attempted to exploit the potential of visual foundation models such as GroundingDINO. Despite the considerable progress, we observe certain shortcomings, including the limited diver

Cited by 0SourcePDFScholar
2024

Multivariate Fourier Distribution Perturbation: Domain Shifts with Uncertainty in Frequency Domain

ICASSP 2024accepted

Diversifying training data techniques have achieved tremendous success in Domain Generalization (DG) tasks. The key to diversifying domain data is by increasing the types of domain styles. After investigating this issue from the perspective of the Fourier transform, the domain cue is found to be imp…

Cited by 0SourceScholar
2023

PRIME: 3D Human Pose and Body Shape Recovery with Perspective Projection

ICASSP 2023accepted

Existing monocular 3D human pose and body shape (HPS) estimation methods make the coplanar assumption and use weak perspective projection in order to simplify the problem setting for images in the wild. However, weak perspective projection inevitably introduce prediction biases. To address this issu…

Cited by 0SourceScholar
2023

Unsupervised Prompt Tuning for Text-Driven Object Detection

ICCV 2023poster

Grounded language-image pre-trained models have shown strong zero-shot generalization to various downstream object detection tasks. Despite their promising performance, the models rely heavily on the laborious prompt engineering. Existing works typically address this problem by tuning text prompts u…

Cited by 9PDFScholar
2022

Attention Diversification for Domain Generalization

ECCV 2022poster

"Convolutional neural networks (CNNs) have demonstrated gratifying results at learning discriminative features. However, when applied to unseen domains, state-of-the-art models are usually prone to errors due to domain shift. After investigating this issue from the perspective of shortcut learning,…

2022

Dual-Evidential Learning for Weakly-Supervised Temporal Action Localization

ECCV 2022poster

"Weakly-supervised temporal action localization (WS-TAL) aims to localize the action instances and recognize their categories with only video-level labels. Despite great progress, existing methods suffer from severe action-background ambiguity, which mainly comes from background noise introduced by…

2022

Dynamic Domain Generalization

IJCAI 2022poster

Domain generalization (DG) is a fundamental yet very challenging research topic in machine learning. The existing arts mainly focus on learning domain-invariant features with limited source domains in a static model. Unfortunately, there is a lack of training-free mechanism to adjust the model when…

2022

Label Matching Semi-Supervised Object Detection

CVPR 2022poster

Semi-supervised object detection has made significant progress with the development of mean teacher driven self-training. Despite the promising results, the label mismatch problem is not yet fully explored in the previous works, leading to severe confirmation bias during self-training. In this paper…

Cited by 95PDFcodeScholar
2022

Learning Domain Adaptive Object Detection with Probabilistic Teacher

ICML 2022spotlight

Self-training for unsupervised domain adaptive object detection is a challenging task, of which the performance depends heavily on the quality of pseudo boxes. Despite the promising results, prior works have largely overlooked the uncertainty of pseudo boxes during self-training. In this paper, we p…

2022

Self-Supervised Noisy Label Learning for Source-Free Unsupervised Domain Adaptation

IROS 2022poster

Domain adaptation is an important property in robot vision, which enables the neural networks pre-trained on source domains to adapt target domains automatically without any annotation efforts. During this process, source data is not always accessible due to the constraints of expensive storage over…

Cited by 80SourceScholar
2022

Simulation-and-Mining: Towards Accurate Source-Free Unsupervised Domain Adaptive Object Detection

ICASSP 2022accepted

Vanilla unsupervised domain adaptive (UDA) object detection typically requires the labeled source data for joint-training with the unlabeled target data, which is usually unavailable in real-world scenarios due to data privacy, leading to source data-free UDA object detection. Herein, we first analy…

Cited by 0SourceScholar
2022

Target-Aware Auto-Augmentation for Unsupervised Domain Adaptive Object Detection

ICASSP 2022accepted

Recent researches show that data auto-augmentation strategies can enhance the performance of object detection models. However, the existing works mainly focus on in-domain generalization. There is still a blank in out-of-domain generalization. In this paper, for the first time, we propose an auto-au…

Cited by 0SourceScholar
2022

Transductive Clip with Class-Conditional Contrastive Learning

ICASSP 2022accepted

Inspired by the remarkable zero-shot generalization capacity of vision-language pre-trained model, we seek to leverage the supervision from CLIP model to alleviate the burden of data labeling. However, such supervision inevitably contains the label noise, which significantly degrades the discriminat…

Cited by 0SourceScholar
2021

A Free Lunch for Unsupervised Domain Adaptive Object Detection without Source Data

AAAI 2021technical

Unsupervised domain adaptation (UDA) assumes that source and target domain data are freely available and usually trained together to reduce the domain gap. However, considering the data privacy and the inefficiency of data transmission, it is impractical in real scenarios. Hence, it draws our eyes t…

Cited by 168SourcePDFScholar
2021

TransForensics: Image Forgery Localization With Dense Self-Attention

ICCV 2021poster

Nowadays advanced image editing tools and technical skills produce tampered images more realistically, which can easily evade image forensic systems and make authenticity verification of images more difficult. To tackle this challenging problem, we introduce TransForensics, a novel image forgery loc…

Cited by 65PDFScholar