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We introduce a method to learn unsupervised semantic visual information based on the premise that complex events can be decomposed into simpler events and that these simple events are shared across several complex events. We first employ a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Valter Estevam , Rayson Laroca , Helio Pedrini , David Menotti

Dense video captioning aims to localize and describe important events in untrimmed videos. Existing methods mainly tackle this task by exploiting only visual features, while completely neglecting the audio track. Only a few prior works have…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Vladimir Iashin , Esa Rahtu

We propose OmniCaptioner, a versatile visual captioning framework for generating fine-grained textual descriptions across a wide variety of visual domains. Unlike prior methods limited to specific image types (e.g., natural images or…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Yiting Lu , Jiakang Yuan , Zhen Li , Shitian Zhao , Qi Qin , Xinyue Li , Le Zhuo , Licheng Wen , Dongyang Liu , Yuewen Cao , Xiangchao Yan , Xin Li , Tianshuo Peng , Shufei Zhang , Botian Shi , Tao Chen , Zhibo Chen , Lei Bai , Peng Gao , Bo Zhang

We introduce the task of dense captioning in 3D scans from commodity RGB-D sensors. As input, we assume a point cloud of a 3D scene; the expected output is the bounding boxes along with the descriptions for the underlying objects. To…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Dave Zhenyu Chen , Ali Gholami , Matthias Nießner , Angel X. Chang

Dense video captioning, a task of localizing meaningful moments and generating relevant captions for videos, often requires a large, expensive corpus of annotated video segments paired with text. In an effort to minimize the annotation…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Yongrae Jo , Seongyun Lee , Aiden SJ Lee , Hyunji Lee , Hanseok Oh , Minjoon Seo

While image captioning provides isolated descriptions for individual images, and video captioning offers one single narrative for an entire video clip, our work explores an important middle ground: progress-aware video captioning at the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Zihui Xue , Joungbin An , Xitong Yang , Kristen Grauman

Real-world video creation often involves a complex reasoning workflow of selecting relevant shots from noisy materials, planning missing shots for narrative completeness, and organizing them into coherent storylines. However, existing…

Multimedia · Computer Science 2026-04-20 Huanran Hu , Zihui Ren , Dingyi Yang , Liangyu Chen , Qixiang Gao , Tiezheng Ge , Qin Jin

Generating automatic dense captions for videos that accurately describe their contents remains a challenging area of research. Most current models require processing the entire video at once. Instead, we propose an efficient, online…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 AJ Piergiovanni , Dahun Kim , Michael S. Ryoo , Isaac Noble , Anelia Angelova

Image Difference Captioning (IDC) aims to generate natural language descriptions of subtle differences between image pairs, requiring both precise visual change localization and coherent semantic expression. Despite recent advancements,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Yuan Liu , Saihui Hou , Saijie Hou , Jiabao Du , Shibei Meng , Yongzhen Huang

Dense event captioning aims to detect and describe all events of interest contained in a video. Despite the advanced development in this area, existing methods tackle this task by making use of dense temporal annotations, which is…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Xuguang Duan , Wenbing Huang , Chuang Gan , Jingdong Wang , Wenwu Zhu , Junzhou Huang

Dense video captioning (DVC) aims to generate multi-sentence descriptions to elucidate the multiple events in the video, which is challenging and demands visual consistency, discoursal coherence, and linguistic diversity. Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2021-11-22 Xu Yan , Zhengcong Fei , Shuhui Wang , Qingming Huang , Qi Tian

Audiovisual video captioning aims to generate semantically rich descriptions with temporal alignment between visual and auditory events, thereby benefiting both video understanding and generation. In this paper, we present AVoCaDO, a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Xinlong Chen , Yue Ding , Weihong Lin , Jingyun Hua , Linli Yao , Yang Shi , Bozhou Li , Yuanxing Zhang , Qiang Liu , Pengfei Wan , Liang Wang , Tieniu Tan

Multi-modal learning, particularly among imaging and linguistic modalities, has made amazing strides in many high-level fundamental visual understanding problems, ranging from language grounding to dense event captioning. However, much of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-28 Tanzila Rahman , Bicheng Xu , Leonid Sigal

The training of controllable text-to-video (T2V) models relies heavily on the alignment between videos and captions, yet little existing research connects video caption evaluation with T2V generation assessment. This paper introduces…

Artificial Intelligence · Computer Science 2025-05-20 Xinlong Chen , Yuanxing Zhang , Chongling Rao , Yushuo Guan , Jiaheng Liu , Fuzheng Zhang , Chengru Song , Qiang Liu , Di Zhang , Tieniu Tan

This paper focuses on a novel and challenging vision task, dense video captioning, which aims to automatically describe a video clip with multiple informative and diverse caption sentences. The proposed method is trained without explicit…

Computer Vision and Pattern Recognition · Computer Science 2017-04-06 Zhiqiang Shen , Jianguo Li , Zhou Su , Minjun Li , Yurong Chen , Yu-Gang Jiang , Xiangyang Xue

Controllable captioning is essential for precise multimodal alignment and instruction following, yet existing models often lack fine-grained control and reliable evaluation protocols. To address this gap, we present the AnyCap Project, an…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Yiming Ren , Zhiqiang Lin , Yu Li , Gao Meng , Weiyun Wang , Junjie Wang , Zicheng Lin , Jifeng Dai , Yujiu Yang , Wenhai Wang , Ruihang Chu

Recently, dense video captioning has made attractive progress in detecting and captioning all events in a long untrimmed video. Despite promising results were achieved, most existing methods do not sufficiently explore the scene evolution…

Computer Vision and Pattern Recognition · Computer Science 2025-06-26 Zhiwang Zhang , Dong Xu , Wanli Ouyang , Luping Zhou

We propose a new task and model for dense video object captioning -- detecting, tracking and captioning trajectories of objects in a video. This task unifies spatial and temporal localization in video, whilst also requiring fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Xingyi Zhou , Anurag Arnab , Chen Sun , Cordelia Schmid

Universal video understanding requires modeling fine-grained visual and audio information over time in diverse real-world scenarios. However, the performance of existing models is primarily constrained by video-instruction data that…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Yunheng Li , Hengrui Zhang , Meng-Hao Guo , Wenzhao Gao , Shaoyong Jia , Shaohui Jiao , Qibin Hou , Ming-Ming Cheng

3D understanding is a key capability for real-world AI assistance. High-quality data plays an important role in driving the development of the 3D understanding community. Current 3D scene understanding datasets often provide geometric and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Zirui Wang , Tao Zhang