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We present AdaFrame, a framework that adaptively selects relevant frames on a per-input basis for fast video recognition. AdaFrame contains a Long Short-Term Memory network augmented with a global memory that provides context information…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Zuxuan Wu , Caiming Xiong , Chih-Yao Ma , Richard Socher , Larry S. Davis

Building correspondences across different modalities, such as video and language, has recently become critical in many visual recognition applications, such as video captioning. Inspired by machine translation, recent models tackle this…

Computer Vision and Pattern Recognition · Computer Science 2019-11-11 Silvio Olivastri , Gurkirt Singh , Fabio Cuzzolin

Video paragraph captioning aims to describe multiple events in untrimmed videos with descriptive paragraphs. Existing approaches mainly solve the problem in two steps: event detection and then event captioning. Such two-step manner makes…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Yuqing Song , Shizhe Chen , Qin Jin

Video captioning is the task of automatically generating a textual description of the actions in a video. Although previous work (e.g. sequence-to-sequence model) has shown promising results in abstracting a coarse description of a short…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Xin Wang , Wenhu Chen , Jiawei Wu , Yuan-Fang Wang , William Yang Wang

Video is complex due to large variations in motion and rich content in fine-grained visual details. Abstracting useful information from such information-intensive media requires exhaustive computing resources. This paper studies a two-step…

Computer Vision and Pattern Recognition · Computer Science 2022-01-12 Zhaofan Qiu , Ting Yao , Yan Shu , Chong-Wah Ngo , Tao Mei

Long-form videos that span across wide temporal intervals are highly information redundant and contain multiple distinct events or entities that are often loosely related. Therefore, when performing long-form video question answering…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Jongwoo Park , Kanchana Ranasinghe , Kumara Kahatapitiya , Wonjeong Ryu , Donghyun Kim , Michael S. Ryoo

We present a compact encoder for image categorization that emphasizes computation economy through content-conditioned multi-pass processing. The model employs a single lightweight core block that can be re-applied a small number of times,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 YiZhou Li

The practical application of Multimodal Large Language Models (MLLMs) to Video Question Answering (Video-QA) is severely hindered by the high token cost of processing numerous video frames. While keyframe selection is the dominant strategy…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Shaoguang Wang , Weiyu Guo , Ziyang Chen , Yijie Xu , Xuming Hu , Hui Xiong

Training an effective video-and-language model intuitively requires multiple frames as model inputs. However, it is unclear whether using multiple frames is beneficial to downstream tasks, and if yes, whether the performance gain is worth…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Jie Lei , Tamara L. Berg , Mohit Bansal

Image captioning is the process of automatically generating a description of an image in natural language. Image captioning is one of the significant challenges in image understanding since it requires not only recognizing salient objects…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Ghadah Alabduljabbar , Hafida Benhidour , Said Kerrache

As a widely adopted technique in data transmission, video compression effectively reduces the size of files, making it possible for real-time cloud computing. However, it comes at the cost of visual quality, posing challenges to the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-23 Huimin Zeng , Jiacheng Li , Zhiwei Xiong

The task of video grounding, which temporally localizes a natural language description in a video, plays an important role in understanding videos. Existing studies have adopted strategies of sliding window over the entire video or…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Dongliang He , Xiang Zhao , Jizhou Huang , Fu Li , Xiao Liu , Shilei Wen

Automatically describing a video with natural language is regarded as a fundamental challenge in computer vision. The problem nevertheless is not trivial especially when a video contains multiple events to be worthy of mention, which often…

Computer Vision and Pattern Recognition · Computer Science 2018-04-24 Yehao Li , Ting Yao , Yingwei Pan , Hongyang Chao , Tao Mei

In this paper, we present Change3D, a framework that reconceptualizes the change detection and captioning tasks through video modeling. Recent methods have achieved remarkable success by regarding each pair of bi-temporal images as separate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Duowang Zhu , Xiaohu Huang , Haiyan Huang , Hao Zhou , Zhenfeng Shao

Recent advances in Multi-Modal Large Language Models (M-LLMs) show promising results in video reasoning. Popular Multi-Modal Large Language Model (M-LLM) frameworks usually apply naive uniform sampling to reduce the number of video frames…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Kai Hu , Feng Gao , Xiaohan Nie , Peng Zhou , Son Tran , Tal Neiman , Lingyun Wang , Mubarak Shah , Raffay Hamid , Bing Yin , Trishul Chilimbi

Text-to-video retrieval enables users to find relevant video content using natural language queries, a task that has grown increasingly important with the rapid expansion of online video. Over the past six years, research has produced…

Deep learning algorithms have pushed the boundaries of computer vision research and have depicted commendable performance in a variety of applications. However, training a robust deep neural network necessitates a large amount of labeled…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Debanjan Goswami , Shayok Chakraborty

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

In this paper, we propose a framework named OCSampler to explore a compact yet effective video representation with one short clip for efficient video recognition. Recent works prefer to formulate frame sampling as a sequential decision task…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Jintao Lin , Haodong Duan , Kai Chen , Dahua Lin , Limin Wang

Video captioning is the process of describing the content of a sequence of images capturing its semantic relationships and meanings. Dealing with this task with a single image is arduous, not to mention how difficult it is for a video (or…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Daniela Moctezuma , Tania Ramírez-delReal , Guillermo Ruiz , Othón González-Chávez