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Scene-Text Visual Question Answering (ST-VQA) aims to understand scene text in images and answer questions related to the text content. Most existing methods heavily rely on the accuracy of Optical Character Recognition (OCR) systems, and…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Zhixuan Shen , Haonan Luo , Sijia Li , Tianrui Li

Dynamic adaptive streaming over HTTP provides the work of most multimedia services, however, the nature of this technology further complicates the assessment of the QoE (Quality of Experience). In this paper, the influence of various…

多媒体 · 计算机科学 2020-12-09 Aleksandr Ivchenko , Pavel Kononyuk , Alexander Dvorkovich , Liubov Antiufrieva

Cross-age facial images are typically challenging and expensive to collect, making noise-free age-oriented datasets relatively small compared to widely-used large-scale facial datasets. Additionally, in real scenarios, images of the same…

计算机视觉与模式识别 · 计算机科学 2024-01-04 Haoyi Wang , Victor Sanchez , Chang-Tsun Li

The attention mechanism is blooming in computer vision nowadays. However, its application to video quality assessment (VQA) has not been reported. Evaluating the quality of in-the-wild videos is challenging due to the unknown of pristine…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Fengchuang Xing , Yuan-Gen Wang , Hanpin Wang , Leida Li , Guopu Zhu

Data replay is a successful incremental learning technique for images. It prevents catastrophic forgetting by keeping a reservoir of previous data, original or synthesized, to ensure the model retains past knowledge while adapting to novel…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Guodong Ding , Hans Golong , Angela Yao

Generalized Category Discovery (GCD) is an emerging and challenging open-world problem that has garnered increasing attention in recent years. Most existing GCD methods focus on discovering categories in static images. However, relying…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Zhang Jing , Pu Nan , Xie Yu Xiang , Guo Yanming , Lu Qianqi , Zou Shiwei , Yan Jie , Chen Yan

Reinforcement learning with multiple, potentially conflicting objectives is pervasive in real-world applications, while this problem remains theoretically under-explored. This paper tackles the multi-objective reinforcement learning (MORL)…

机器学习 · 计算机科学 2024-05-10 Tianchen Zhou , FNU Hairi , Haibo Yang , Jia Liu , Tian Tong , Fan Yang , Michinari Momma , Yan Gao

Audio-visual quality assessment (AVQA) is essential for streaming, teleconferencing, and immersive media. In realistic streaming scenarios, distortions are often asymmetric, where one modality may be severely degraded while the other…

多媒体 · 计算机科学 2026-05-05 Mayesha Maliha R. Mithila , Mylene C. Q. Farias

We propose a self-supervised learning approach for videos that learns representations of both the RGB frames and the accompanying audio without human supervision. In contrast to images that capture the static scene appearance, videos also…

计算机视觉与模式识别 · 计算机科学 2023-02-16 Simon Jenni , Alexander Black , John Collomosse

In the field of multi-task reinforcement learning, the modular principle, which involves specializing functionalities into different modules and combining them appropriately, has been widely adopted as a promising approach to prevent the…

机器学习 · 计算机科学 2023-11-03 Siming Lan , Rui Zhang , Qi Yi , Jiaming Guo , Shaohui Peng , Yunkai Gao , Fan Wu , Ruizhi Chen , Zidong Du , Xing Hu , Xishan Zhang , Ling Li , Yunji Chen

Quality-Diversity (QD) optimization is an emerging field that focuses on finding a set of behaviorally diverse and high-quality solutions. While the quality is typically defined w.r.t. a single objective function, recent work on…

神经与进化计算 · 计算机科学 2025-05-28 Shihan Zhao , Stefanos Nikolaidis

Assessing action quality is both imperative and challenging due to its significant impact on the quality of AI-generated videos, further complicated by the inherently ambiguous nature of actions within AI-generated video (AIGV). Current…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Zijian Chen , Wei Sun , Yuan Tian , Jun Jia , Zicheng Zhang , Jiarui Wang , Ru Huang , Xiongkuo Min , Guangtao Zhai , Wenjun Zhang

Textbook Question Answering (TQA) is a complex multimodal task to infer answers given large context descriptions and abundant diagrams. Compared with Visual Question Answering (VQA), TQA contains a large number of uncommon terminologies and…

多媒体 · 计算机科学 2021-12-07 Fangzhi Xu , Qika Lin , Jun Liu , Lingling Zhang , Tianzhe Zhao , Qi Chai , Yudai Pan

We consider the problem of obtaining image quality representations in a self-supervised manner. We use prediction of distortion type and degree as an auxiliary task to learn features from an unlabeled image dataset containing a mixture of…

计算机视觉与模式识别 · 计算机科学 2022-06-30 Pavan C. Madhusudana , Neil Birkbeck , Yilin Wang , Balu Adsumilli , Alan C. Bovik

This paper introduces MovieCORE, a novel video question answering (VQA) dataset designed to probe deeper cognitive understanding of movie content. Unlike existing datasets that focus on surface-level comprehension, MovieCORE emphasizes…

Contrastive learning is a discriminative approach that aims at grouping similar samples closer and diverse samples far from each other. It it an efficient technique to train an encoder generating distinguishable and informative…

计算机视觉与模式识别 · 计算机科学 2021-07-19 Qing Chen , Jian Zhang

Query-based video grounding is an important yet challenging task in video understanding, which aims to localize the target segment in an untrimmed video according to a sentence query. Most previous works achieve significant progress by…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Shentong Mo , Daizong Liu , Wei Hu

Image regression tasks for medical applications, such as bone mineral density (BMD) estimation and left-ventricular ejection fraction (LVEF) prediction, play an important role in computer-aided disease assessment. Most deep regression…

计算机视觉与模式识别 · 计算机科学 2021-12-23 Weihang Dai , Xiaomeng Li , Wan Hang Keith Chiu , Michael D. Kuo , Kwang-Ting Cheng

Machine unlearning offers effective solutions for revoking the influence of specific training data on pre-trained model parameters. While existing approaches address unlearning for classification and generative models, they overlook an…

机器学习 · 计算机科学 2025-08-19 Yihan Wang , Yiwei Lu , Guojun Zhang , Franziska Boenisch , Adam Dziedzic , Yaoliang Yu , Xiao-Shan Gao

The rapid development of diffusion models has greatly advanced AI-generated videos in terms of length and consistency recently, yet assessing AI-generated videos still remains challenging. Previous approaches have often focused on…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Jiaze Li , Haoran Xu , Shiding Zhu , Junwei He , Haozhao Wang