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Test-time augmentation (TTA)--aggregating predictions over multiple augmented copies of a test input--is widely assumed to improve classification accuracy, particularly in medical imaging where it is routinely deployed in production systems…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Daniel Nobrega Medeiros

Test-time adaptation (TTA) has emerged as a promising paradigm for vision-language models (VLMs) to bridge the distribution gap between pre-training and test data. Recent works have focused on backpropagation-free TTA methods that rely on…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Zhaohong Huang , Yuxin Zhang , Wenjing Liu , Fei Chao , Rongrong Ji

Data augmentation is a powerful technique to enhance the performance of a deep learning task but has received less attention in 3D deep learning. It is well known that when 3D shapes are sparsely represented with low point density, the…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Tuan-Anh Vu , Srinjay Sarkar , Zhiyuan Zhang , Binh-Son Hua , Sai-Kit Yeung

Deep-learning models have been successful in biomedical image segmentation. To generalize for real-world deployment, test-time augmentation (TTA) methods are often used to transform the test image into different versions that are hopefully…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Kangxian Xie , Siyu Huang , Sebastian Andres Cajas Ordonez , Hanspeter Pfister , Donglai Wei

Domain adaptation (DA) techniques help deep learning models generalize across data shifts for point cloud semantic segmentation (PCSS). Test-time adaptation (TTA) allows direct adaptation of a pre-trained model to unlabeled data during…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Puzuo Wang , Wei Yao , Jie Shao , Zhiyi He

Test-time adaptation (TTA) has demonstrated significant potential in addressing distribution shifts between training and testing data. Open-set test-time adaptation (OSTTA) aims to adapt a source pre-trained model online to an unlabeled…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Hao Dong , Eleni Chatzi , Olga Fink

Test-time adaptation (TTA) has emerged as a promising paradigm to handle the domain shifts at test time for medical images from different institutions without using extra training data. However, existing TTA solutions for segmentation tasks…

计算机视觉与模式识别 · 计算机科学 2024-10-03 Chuyan Zhang , Hao Zheng , Xin You , Yefeng Zheng , Yun Gu

Online test-time adaptation (OTTA) of vision-language models (VLMs) has recently garnered increased attention to take advantage of data observed along a stream to improve future predictions. Unfortunately, existing methods rely on…

计算机视觉与模式识别 · 计算机科学 2025-01-09 Clément Fuchs , Maxime Zanella , Christophe De Vleeschouwer

Source-free test-time adaptation (TTA) is appealing for mobile and wearable sensing because it enables on-device personalization from unlabeled test streams without centralizing private data. However, sensor-based human activity recognition…

人工智能 · 计算机科学 2026-04-29 Changyu Li , Lu Wang , Ming Lei , Jiashen Liu , Yichen Zhang , Kaishun Wu , Fei Luo

Test-time adaptation (TTA) adapts the pre-trained models to test distributions during the inference phase exclusively employing unlabeled test data streams, which holds great value for the deployment of models in real-world applications.…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Shuang Li , Longhui Yuan , Binhui Xie , Tao Yang

Test-time adaptation (TTA) is the problem of updating a pre-trained source model at inference time given test input(s) from a different target domain. Most existing TTA approaches assume the setting in which the target domain is stationary,…

机器学习 · 计算机科学 2023-04-05 Dhanajit Brahma , Piyush Rai

Test-time adaptation aims to adapt pre-trained deep neural networks using solely online unlabelled test data during inference. Although TTA has shown promise in visual applications, its potential in time series contexts remains largely…

机器学习 · 计算机科学 2025-01-06 Peiliang Gong , Mohamed Ragab , Min Wu , Zhenghua Chen , Yongyi Su , Xiaoli Li , Daoqiang Zhang

Test-time adaptation (TTA) updates the model weights during the inference stage using testing data to enhance generalization. However, this practice exposes TTA to adversarial risks. Existing studies have shown that when TTA is updated with…

机器学习 · 计算机科学 2025-03-03 Yongyi Su , Yushu Li , Nanqing Liu , Kui Jia , Xulei Yang , Chuan-Sheng Foo , Xun Xu

Test time Adaptation is a promising approach for mitigating domain shift in medical image segmentation; however, current evaluations remain limited in terms of modality coverage, task diversity, and methodological consistency. We present…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Wenjing Yu , Shuo Jiang , Yifei Chen , Shuo Chang , Yuanhan Wang , Beining Wu , Jie Dong , Mingxuan Liu , Shenghao Zhu , Feiwei Qin , Changmiao Wang , Qiyuan Tian

In this study, we introduce an intelligent Test Time Augmentation (TTA) algorithm designed to enhance the robustness and accuracy of image classification models against viewpoint variations. Unlike traditional TTA methods that…

图像与视频处理 · 电气工程与系统科学 2024-06-14 Efe Ozturk , Mohit Prabhushankar , Ghassan AlRegib

Visual-language models (VLMs) like CLIP exhibit strong generalization but struggle with distribution shifts at test time. Existing training-free test-time adaptation (TTA) methods operate strictly within CLIP's original feature space,…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Jizhou Han , Chenhao Ding , SongLin Dong , Yuhang He , Xinyuan Gao , Yihong Gong

Test-Time Adaptation (TTA) addresses distribution shifts during testing by adapting a pretrained model without access to source data. In this work, we propose a novel TTA approach for 3D point cloud classification, combining sampling…

Open-set test-time adaptation (OSTTA) addresses the challenge of adapting models to new environments where out-of-distribution (OOD) samples coexist with in-distribution (ID) samples affected by distribution shifts. In such settings,…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Wenjie Zhao , Jia Li , Xin Dong , Yapeng Tian , Yu Xiang , Yunhui Guo

Test-time Adaptation (TTA) aims to improve model performance when the model encounters domain changes after deployment. The standard TTA mainly considers the case where the target domain is static, while the continual TTA needs to undergo a…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Xinru Meng , Han Sun , Jiamei Liu , Ningzhong Liu , Huiyu Zhou

Continual Test-Time Adaptation (CTTA) aims to enable models to adapt online to unlabeled data streams under distribution shift without accessing source data. Existing CTTA methods face an efficiency-generalization trade-off: updating more…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Guannan Lai , Da-Wei Zhou , Zhenguo Li , Han-Jia Ye