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Video moment retrieval targets at retrieving a moment in a video for a given language query. The challenges of this task include 1) the requirement of localizing the relevant moment in an untrimmed video, and 2) bridging the semantic gap…

计算机视觉与模式识别 · 计算机科学 2023-04-06 Haoyu Tang , Jihua Zhu , Meng Liu , Zan Gao , Zhiyong Cheng

Detecting out-of-distribution (OOD) samples is crucial for ensuring the safety of machine learning systems and has shaped the field of OOD detection. Meanwhile, several other problems are closely related to OOD detection, including anomaly…

计算机视觉与模式识别 · 计算机科学 2025-06-19 Atsuyuki Miyai , Jingkang Yang , Jingyang Zhang , Yifei Ming , Yueqian Lin , Qing Yu , Go Irie , Shafiq Joty , Yixuan Li , Hai Li , Ziwei Liu , Toshihiko Yamasaki , Kiyoharu Aizawa

Video moment retrieval aims to localize moments in video corresponding to a given language query. To avoid the expensive cost of annotating the temporal moments, weakly-supervised VMR (wsVMR) systems have been studied. For such systems,…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Sunjae Yoon , Gwanhyeong Koo , Dahyun Kim , Chang D. Yoo

We focus on the challenge of out-of-distribution (OOD) detection in deep learning models, a crucial aspect in ensuring reliability. Despite considerable effort, the problem remains significantly challenging in deep learning models due to…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Yunhao Ge , Jie Ren , Jiaping Zhao , Kaifeng Chen , Andrew Gallagher , Laurent Itti , Balaji Lakshminarayanan

Semantic segmentation in videos has been a focal point of recent research. However, existing models encounter challenges when faced with unfamiliar categories. To address this, we introduce the Open Vocabulary Video Semantic Segmentation…

多媒体 · 计算机科学 2024-12-13 Xinhao Li , Yun Liu , Guolei Sun , Min Wu , Le Zhang , Ce Zhu

Most existing cross-modal language-to-video retrieval (VR) research focuses on single-modal input from video, i.e., visual representation, while the text is omnipresent in human environments and frequently critical to understand video. To…

计算机视觉与模式识别 · 计算机科学 2023-05-08 Weijia Wu , Yuzhong Zhao , Zhuang Li , Jiahong Li , Hong Zhou , Mike Zheng Shou , Xiang Bai

Open-vocabulary segmentation (OVS) extends the zero-shot recognition capabilities of vision-language models (VLMs) to pixel-level prediction, enabling segmentation of arbitrary categories specified by text prompts. Despite recent progress,…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Tilemachos Aravanis , Vladan Stojnić , Bill Psomas , Nikos Komodakis , Giorgos Tolias

Video retrieval using natural language queries requires learning semantically meaningful joint embeddings between the text and the audio-visual input. Often, such joint embeddings are learnt using pairwise (or triplet) contrastive loss…

信息检索 · 计算机科学 2021-03-10 Jayaprakash A , Abhishek , Rishabh Dabral , Ganesh Ramakrishnan , Preethi Jyothi

Detecting out-of-distribution (OOD) data is crucial in real-world machine learning applications, particularly in safety-critical domains. Existing methods often leverage language information from vision-language models (VLMs) to enhance OOD…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Shu Zou , Xinyu Tian , Qinyu Zhao , Zhaoyuan Yang , Jing Zhang

Out-of-distribution (OOD) object detection is a critical task focused on detecting objects that originate from a data distribution different from that of the training data. In this study, we investigate to what extent state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2024-08-22 Sadia Ilyas , Ido Freeman , Matthias Rottmann

Recent advancements in video large multimodal models (LMMs) have significantly improved their video understanding and reasoning capabilities. However, their performance drops on out-of-distribution (OOD) tasks that are underrepresented in…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Kangsan Kim , Geon Park , Youngwan Lee , Woongyeong Yeo , Sung Ju Hwang

Moment retrieval aims to locate the most relevant moment in an untrimmed video based on a given natural language query. Existing solutions can be roughly categorized into moment-based and clip-based methods. The former often involves heavy…

计算机视觉与模式识别 · 计算机科学 2024-06-11 Jiajun He , Tomoki Toda

Understanding high-resolution (HR) images remains a critical challenge for multimodal large language models (MLLMs). Recent approaches leverage vision-based retrieval-augmented generation (RAG) to retrieve query-relevant crops from HR…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Fan Yang , Xingping Dong , Xin Yu , Wenhan Luo , Wei Liu , Kaihao Zhang

Out-of-distribution (OOD) detection has received much attention lately due to its importance in the safe deployment of neural networks. One of the key challenges is that models lack supervision signals from unknown data, and as a result,…

机器学习 · 计算机科学 2022-05-11 Xuefeng Du , Zhaoning Wang , Mu Cai , Yixuan Li

Most approaches to cross-modal retrieval (CMR) focus either on object-centric datasets, meaning that each document depicts or describes a single object, or on scene-centric datasets, meaning that each image depicts or describes a complex…

信息检索 · 计算机科学 2023-10-12 Mariya Hendriksen , Svitlana Vakulenko , Ernst Kuiper , Maarten de Rijke

Video Anomaly Detection (VAD) aims to locate unusual activities or behaviors within videos. Recently, offline VAD has garnered substantial research attention, which has been invigorated by the progress in large language models (LLMs) and…

计算机视觉与模式识别 · 计算机科学 2025-10-27 Shengtian Yang , Yue Feng , Yingshi Liu , Jingrou Zhang , Jie Qin

Open Set Recognition (OSR) extends image classification to an open-world setting, by simultaneously classifying known classes and identifying unknown ones. While conventional OSR approaches can detect Out-of-Distribution (OOD) samples, they…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Piyapat Saranrittichai , Chaithanya Kumar Mummadi , Claudia Blaiotta , Mauricio Munoz , Volker Fischer

Object detection (OD) in computer vision has made significant progress in recent years, transitioning from closed-set labels to open-vocabulary detection (OVD) based on large-scale vision-language pre-training (VLP). However, current…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Yiyang Yao , Peng Liu , Tiancheng Zhao , Qianqian Zhang , Jiajia Liao , Chunxin Fang , Kyusong Lee , Qing Wang

Out-of-Distribution (OOD) detection is a critical task that has garnered significant attention. The emergence of CLIP has spurred extensive research into zero-shot OOD detection, often employing a training-free approach. Current methods…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Haoran Xu , Yanlin Liu , Zizhao Tong , Jiaze Li , Kexue Fu , Yuyang Zhang , Longxiang Gao , Shuaiguang Li , Xingyu Li , Yanran Xu , Changwei Wang

Open-vocabulary object detection (OVOD) aims to detect the objects beyond the set of classes observed during training. This work introduces a straightforward and efficient strategy that utilizes pre-trained vision-language models (VLM),…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Shilin Xu , Xiangtai Li , Size Wu , Wenwei Zhang , Yunhai Tong , Chen Change Loy