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Video question-answering is a fundamental task in the field of video understanding. Although current vision--language models (VLMs) equipped with Video Transformers have enabled temporal modeling and yielded superior results, they are at…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wei Han , Hui Chen , Min-Yen Kan , Soujanya Poria

Annotating videos with object segmentation masks typically involves a two stage procedure of drawing polygons per object instance for all the frames and then linking them through time. While simple, this is a very tedious, time consuming…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Namdar Homayounfar , Justin Liang , Wei-Chiu Ma , Raquel Urtasun

Video processing has become a popular research direction in computer vision due to its various applications such as video summarization, action recognition, etc. Recently, deep learning-based methods have achieved impressive results in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 G M Mashrur E Elahi , Yee-Hong Yang

While text-to-video diffusion models have made significant strides, many still face challenges in generating videos with temporal consistency. Within diffusion frameworks, guidance techniques have proven effective in enhancing output…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Hyelin Nam , Jaemin Kim , Dohun Lee , Jong Chul Ye

The canonical approach to video-and-language learning (e.g., video question answering) dictates a neural model to learn from offline-extracted dense video features from vision models and text features from language models. These feature…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Jie Lei , Linjie Li , Luowei Zhou , Zhe Gan , Tamara L. Berg , Mohit Bansal , Jingjing Liu

Recently, large-scale pre-training methods like CLIP have made great progress in multi-modal research such as text-video retrieval. In CLIP, transformers are vital for modeling complex multi-modal relations. However, in the vision…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Shuai Zhao , Linchao Zhu , Xiaohan Wang , Yi Yang

In this paper, Gated-ViGAT, an efficient approach for video event recognition, utilizing bottom-up (object) information, a new frame sampling policy and a gating mechanism is proposed. Specifically, the frame sampling policy uses weighted…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Nikolaos Gkalelis , Dimitrios Daskalakis , Vasileios Mezaris

The canonical approach to video action recognition dictates a neural model to do a classic and standard 1-of-N majority vote task. They are trained to predict a fixed set of predefined categories, limiting their transferable ability on new…

Computer Vision and Pattern Recognition · Computer Science 2021-09-20 Mengmeng Wang , Jiazheng Xing , Yong Liu

Summarizing video content is an important task in many applications. This task can be defined as the computation of the ordered list of actions present in a video. Such a list could be extracted using action detection algorithms. However,…

Machine Learning · Computer Science 2020-11-11 Guillaume Vaudaux-Ruth , Adrien Chan-Hon-Tong , Catherine Achard

Despite recent interest and advances in facial micro-expression research, there is still plenty room for improvement in terms of micro-expression recognition. Conventional feature extraction approaches for micro-expression video consider…

Computer Vision and Pattern Recognition · Computer Science 2018-02-16 Sze-Teng Liong , John See , KokSheik Wong , Raphael C. -W. Phan

Semantic Segmentation is an important module for autonomous robots such as self-driving cars. The advantage of video segmentation approaches compared to single image segmentation is that temporal image information is considered, and their…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Andreas Pfeuffer , Klaus Dietmayer

Real-time understanding in video is crucial in various AI applications such as autonomous driving. This work presents a fast single-shot segmentation strategy for video scene understanding. The proposed net, called S3-Net, quickly locates…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 Yuan Cheng , Yuchao Yang , Hai-Bao Chen , Ngai Wong , Hao Yu

Automatic keyframe detection from videos is an exercise in selecting scenes that can best summarize the content for long videos. Providing a summary of the video is an important task to facilitate quick browsing and content summarization.…

Computer Vision and Pattern Recognition · Computer Science 2023-06-26 Samed Arslan , Senem Tanberk

We propose Compressed Video Aggregator (CVA), a lightweight micro-video recommendation module that decouples video information from preference learning. It aggregates frozen VFM embeddings, and uses latent reasoning without cross-attention…

Machine Learning · Computer Science 2026-05-12 Yang Xiao , Huiyuan Chen , Kaiyuan Deng , Chao Jiang , Zinan Ling , Ruimeng Ye , Xiaolong Ma , Bo Hui

Multimodal Large Language Models (MLLMs) have demonstrated significant capabilities in image understanding, but long-video are constrained by context windows and computational cost. Uniform frame sampling often leads to substantial…

Machine Learning · Computer Science 2025-10-17 Yifeng Yao , Yike Yun , Jing Wang , Huishuai Zhang , Dongyan Zhao , Ke Tian , Zhihao Wang , Minghui Qiu , Tao Wang

The state of the art in video understanding suffers from two problems: (1) The major part of reasoning is performed locally in the video, therefore, it misses important relationships within actions that span several seconds. (2) While there…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Mohammadreza Zolfaghari , Kamaljeet Singh , Thomas Brox

Generic event boundary detection aims to localize the generic, taxonomy-free event boundaries that segment videos into chunks. Existing methods typically require video frames to be decoded before feeding into the network, which contains…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Libo Zhang , Xin Gu , Congcong Li , Tiejian Luo , Heng Fan

Multi-step prediction models, such as diffusion and rectified flow models, have emerged as state-of-the-art solutions for generation tasks. However, these models exhibit higher latency in sampling new frames compared to single-step methods.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Gaurav Shrivastava , Abhinav Shrivastava

Recent Vision-Language Models (VLMs) \textit{e.g.} CLIP have made great progress in video recognition. Despite the improvement brought by the strong visual backbone in extracting spatial features, CLIP still falls short in capturing and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Mushui Liu , Bozheng Li , Yunlong Yu

Contrastive Language-Image Pre-training (CLIP) has attracted a surge of attention for its superior zero-shot performance and excellent transferability to downstream tasks. However, training such large-scale models usually requires…

Machine Learning · Computer Science 2025-01-14 Hongbo Liu