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Semantic segmentation of various tissue and nuclei types in histology images is fundamental to many downstream tasks in the area of computational pathology (CPath). In recent years, Deep Learning (DL) methods have been shown to perform well…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Raja Muhammad Saad Bashir , Talha Qaiser , Shan E Ahmed Raza , Nasir M. Rajpoot

As a very common type of video, face videos often appear in movies, talk shows, live broadcasts, and other scenes. Real-world online videos are often plagued by degradations such as blurring and quantization noise, due to the high…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Yutong Wang , Jiajie Teng , Jiajiong Cao , Yuming Li , Chenguang Ma , Hongteng Xu , Dixin Luo

Existing deepfake detection methods often exhibit bias, lack transparency, and fail to capture temporal information, leading to biased decisions and unreliable results across different demographic groups. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Akihito Yoshii , Ryosuke Sonoda , Ramya Srinivasan

Natural language video localization (NLVL) is a crucial task in video understanding that aims to localize the target moment in videos specified by a given language description. Recently, a point-supervised paradigm has been presented to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Zhuo Tao , Liang Li , Qi Chen , Yunbin Tu , Zheng-Jun Zha , Ming-Hsuan Yang , Yuankai Qi , Qingming Huang

There is a growing privacy concern due to the popularity of social media and surveillance systems, along with advances in face recognition software. However, established image obfuscation techniques are either vulnerable to…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Tao Li , Min Soo Choi

Deep saliency prediction algorithms complement the object recognition features, they typically rely on additional information, such as scene context, semantic relationships, gaze direction, and object dissimilarity. However, none of these…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Bahar Aydemir , Ludo Hoffstetter , Tong Zhang , Mathieu Salzmann , Sabine Süsstrunk

Weakly-supervised Temporal Action Localization (WS-TAL) methods learn to localize temporal starts and ends of action instances in a video under only video-level supervision. Existing WS-TAL methods rely on deep features learned for action…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Ziyi Liu , Le Wang , Wei Tang , Junsong Yuan , Nanning Zheng , Gang Hua

Efficiently capturing the complex spatiotemporal representations from large-scale unlabeled traffic data remains to be a challenging task. In considering of the dilemma, this work employs the advanced contrastive learning and proposes a…

Machine Learning · Computer Science 2023-12-19 Lincan Li , Kaixiang Yang , Fengji Luo , Jichao Bi

Deepfake videos present an increasing threat to society with potentially negative impact on criminal justice, democracy, and personal safety and privacy. Meanwhile, detecting deepfakes, at scale, remains a very challenging task that often…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Mulin Tian , Mahyar Khayatkhoei , Joe Mathai , Wael AbdAlmageed

Remarkable advancements in generative AI technology have given rise to a spectrum of novel deepfake categories with unprecedented leaps in their realism, and deepfakes are increasingly becoming a nuisance to law enforcement authorities and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Tharindu Fernando , Clinton Fookes , Sridha Sridharan , Simon Denman

Ensuring the authenticity of video content remains challenging as DeepFake generation becomes increasingly realistic and robust against detection. Most existing detectors implicitly assume temporally consistent and clean facial sequences,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Chih-Chung Hsu , Shao-Ning Chen , Chia-Ming Lee , Yi-Fang Wang , Yi-Shiuan Chou

In the intelligent diagnosis of bimodal (gray-scale and contrast-enhanced) ultrasound videos, medical domain knowledge such as the way sonographers browse videos, the particular areas they emphasize, and the features they pay special…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Chengqian Zhao , Zhao Yao , Zhaoyu Hu , Yuanxin Xie , Yafang Zhang , Yuanyuan Wang , Shuo Li , Jianhua Zhou , Jianqiao Zhou , Yin Wang , Jinhua Yu

Existing audio-driven visual dubbing methods have achieved great success. Despite this, we observe that the semantic ambiguity between spatial and temporal domains significantly degrades the synthesis stability for the dynamic faces. We…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Zijun Ding , Mingdie Xiong , Congcong Zhu , Jingrun Chen

Human action understanding is crucial for the advancement of multimodal systems. While recent developments, driven by powerful large language models (LLMs), aim to be general enough to cover a wide range of categories, they often overlook…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Yongle Huang , Haodong Chen , Zhenbang Xu , Zihan Jia , Haozhou Sun , Dian Shao

Label distributions in camera-trap images are highly imbalanced and long-tailed, resulting in neural networks tending to be biased towards head-classes that appear frequently. Although long-tail learning has been extremely explored to…

Computer Vision and Pattern Recognition · Computer Science 2022-02-17 Byeongjun Park , Jeongsoo Kim , Seungju Cho , Heeseon Kim , Changick Kim

Forgery operations on video contents are nowadays within the reach of anyone, thanks to the availability of powerful and user-friendly editing software. Integrity verification and authentication of videos represent a major interest in both…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Sebastiano Verde , Paolo Bestagini , Simone Milani , Giancarlo Calvagno , Stefano Tubaro

In the pursuit of superior video-processing MLLMs, we have encountered a perplexing paradox: the "anti-scaling law", where more data and larger models lead to worse performance. This study unmasks the culprit: "temporal hacking", a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 En Yu , Kangheng Lin , Liang Zhao , Yana Wei , Zining Zhu , Haoran Wei , Jianjian Sun , Zheng Ge , Xiangyu Zhang , Jingyu Wang , Wenbing Tao

Most deepfake detection methods focus on detecting spatial and/or spatio-temporal changes in facial attributes and are centered around the binary classification task of detecting whether a video is real or fake. This is because available…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Zhixi Cai , Shreya Ghosh , Abhinav Dhall , Tom Gedeon , Kalin Stefanov , Munawar Hayat

Stereo matching in minimally invasive surgery (MIS) is essential for next-generation navigation and augmented reality. Yet, dense disparity supervision is nearly impossible due to anatomical constraints, typically limiting annotations to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Rui Wang , Ying Zhou , Hao Wang , Wenwei Zhang , Qiang Li , Zhiwei Wang

Fine-grained spatio-temporal understanding is essential for video reasoning and embodied AI. Yet, while Multimodal Large Language Models (MLLMs) master static semantics, their grasp of temporal dynamics remains brittle. We present…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Baiqi Li , Kangyi Zhao , Ce Zhang , Chancharik Mitra , Jean de Dieu Nyandwi , Gedas Bertasius