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Understanding long-form videos remains a significant challenge for vision--language models (VLMs) due to their extensive temporal length and high information density. Most current multimodal large language models (MLLMs) rely on uniform…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Xian Zhang , Zexi Wu , Zinuo Li , Hongming Xu , Luqi Gong , Farid Boussaid , Naoufel Werghi , Mohammed Bennamoun

Video object segmentation (VOS) aims at segmenting a particular object throughout the entire video clip sequence. The state-of-the-art VOS methods have achieved excellent performance (e.g., 90+% J&F) on existing datasets. However, since the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Henghui Ding , Chang Liu , Shuting He , Xudong Jiang , Philip H. S. Torr , Song Bai

Open-vocabulary multi-object tracking (OVMOT) represents a critical new challenge involving the detection and tracking of diverse object categories in videos, encompassing both seen categories (base classes) and unseen categories (novel…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Zekun Qian , Ruize Han , Junhui Hou , Linqi Song , Wei Feng

Reasoning Video Object Segmentation is a challenging task, aiming at generating a mask sequence from an input video given a complex and implicit text query. While existing works finetune Multimodal Large Language Models (MLLM) for the task,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Shiu-hong Kao , Yu-Wing Tai , Chi-Keung Tang

Online video web content is richly multimodal: a single video blends vision, speech, ambient audio, and on-screen text. Retrieval systems typically treat these modalities as independent retrieval sources, which can lead to noisy and subpar…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 David Wan , Han Wang , Elias Stengel-Eskin , Jaemin Cho , Mohit Bansal

Open-vocabulary 3D object detection (OV-3DDet) aims to localize and recognize both seen and previously unseen object categories within any new 3D scene. While language and vision foundation models have achieved success in handling various…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Pengkun Jiao , Na Zhao , Jingjing Chen , Yu-Gang Jiang

Zero-shot Long Video Moment Retrieval (ZLVMR) is the task of identifying temporal segments in hour-long videos using a natural language query without task-specific training. The core technical challenge of LVMR stems from the computational…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Mingyu Jeon , Jisoo Yang , Sungjin Han , Jinkwon Hwang , Sunjae Yoon , Jonghee Kim , Junyeoung Kim

We introduce TV show Retrieval (TVR), a new multimodal retrieval dataset. TVR requires systems to understand both videos and their associated subtitle (dialogue) texts, making it more realistic. The dataset contains 109K queries collected…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Jie Lei , Licheng Yu , Tamara L. Berg , Mohit Bansal

Video-Text Retrieval (VTR) aims to search for the most relevant video related to the semantics in a given sentence, and vice versa. In general, this retrieval task is composed of four successive steps: video and textual feature…

Computer Vision and Pattern Recognition · Computer Science 2023-02-27 Cunjuan Zhu , Qi Jia , Wei Chen , Yanming Guo , Yu Liu

Open World Object Detection(OWOD) addresses realistic scenarios where unseen object classes emerge, enabling detectors trained on known classes to detect unknown objects and incrementally incorporate the knowledge they provide. While…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Sunoh Lee , Minsik Jeon , Jihong Min , Junwon Seo

Humans naturally share information with those they are connected to, and video has become one of the dominant mediums for communication and expression on the Internet. To support the creation of high-quality large-scale video content, a…

Current video object detection (VOD) models often encounter issues with over-aggregation due to redundant aggregation strategies, which perform feature aggregation on every frame. This results in suboptimal performance and increased…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Bingqing Zhang , Sen Wang , Yifan Liu , Brano Kusy , Xue Li , Jiajun Liu

Streaming video question answering (Streaming Video QA) poses distinct challenges for multimodal large language models (MLLMs), as video frames arrive sequentially and user queries can be issued at arbitrary time points. Existing solutions…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Haocheng Lu , Nan Zhang , Wei Tao , Xiaoyang Qu , Guokuan Li , Jiguang Wan , Jianzong Wang

Video Camouflaged Object Detection (VCOD) aims to segment objects whose appearances closely resemble their surroundings, posing a challenging and emerging task. Existing vision models often struggle in such scenarios due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Yuang Feng , Shuyong Gao , Fuzhen Yan , Yicheng Song , Lingyi Hong , Junjie Hu , Wenqiang Zhang

Temporal Action Detection (TAD) focuses on detecting pre-defined actions, while Moment Retrieval (MR) aims to identify the events described by open-ended natural language within untrimmed videos. Despite that they focus on different events,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Yingsen Zeng , Yujie Zhong , Chengjian Feng , Lin Ma

Detecting out-of-distribution (OOD) inputs is a central challenge for safely deploying machine learning models in the real world. Existing solutions are mainly driven by small datasets, with low resolution and very few class labels (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Rui Huang , Yixuan Li

Multi-modal retrieval is an important problem for many applications, such as recommendation and search. Current benchmarks and even datasets are often manually constructed and consist of mostly clean samples where all modalities are…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Laura Hanu , James Thewlis , Yuki M. Asano , Christian Rupprecht

Existing vision-language models exhibit strong generalization on a variety of visual domains and tasks. However, such models mainly perform zero-shot recognition in a closed-set manner, and thus struggle to handle open-domain visual…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Yuhang Zang , Hanlin Goh , Josh Susskind , Chen Huang

Out-of-distribution (OOD) detection identifies test samples that differ from the training data, which is critical to ensuring the safety and reliability of machine learning (ML) systems. While a plethora of methods have been developed to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Viet Duong , Qiong Wu , Zhengyi Zhou , Eric Zavesky , Jiahe Chen , Xiangzhou Liu , Wen-Ling Hsu , Huajie Shao

In the life cycle of highly automated systems operating in an open and dynamic environment, the ability to adjust to emerging challenges is crucial. For systems integrating data-driven AI-based components, rapid responses to deployment…

Computer Vision and Pattern Recognition · Computer Science 2023-09-11 Youssef Shoeb , Robin Chan , Gesina Schwalbe , Azarm Nowzard , Fatma Güney , Hanno Gottschalk