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In this paper, we propose a new approach for keypoint-based object detection. Traditional keypoint-based methods consist in classifying individual points and using pose estimation to discard misclassifications. Since a single point carries…

Computer Vision and Pattern Recognition · Computer Science 2009-02-02 Marcelo Hashimoto , Roberto M. Cesar

Recently, with the rise of web videos, managing and understanding large-scale video datasets has become increasingly important. Video Large Language Models (VideoLLMs) have emerged in recent years due to their strong video understanding…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Hao Liang , Jiapeng Li , Tianyi Bai , Xijie Huang , Linzhuang Sun , Zhengren Wang , Conghui He , Bin Cui , Chong Chen , Wentao Zhang

Textual overlays are often used in social media videos as people who watch them without the sound would otherwise miss essential information conveyed in the audio stream. This is why extraction of those overlays can serve as an important…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Adam Słucki , Tomasz Trzcinski , Adam Bielski , Paweł Cyrta

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

Keyframe extraction aims to sum up a video's semantics with the minimum number of its frames. This paper puts forward a Large Model based Sequential Keyframe Extraction for video summarization, dubbed LMSKE, which contains three stages as…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Kailong Tan , Yuxiang Zhou , Qianchen Xia , Rui Liu , Yong Chen

This paper proposes an efficient video summarization framework that will give a gist of the entire video in a few key-frames or video skims. Existing video summarization frameworks are based on algorithms that utilize computer vision…

Computer Vision and Pattern Recognition · Computer Science 2021-01-28 Sai Sukruth Bezugam , Swatilekha Majumdar , Chetan Ralekar , Tapan Kumar Gandhi

Recently, with the emergence of large language models, multimodal LLMs have demonstrated exceptional capabilities in image and video modalities. Despite advancements in video comprehension, the substantial computational demands of long…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Ming Nie , Chunwei Wang , Hang Xu , Li Zhang

Multimodal Large Language Models (MLLMs) have shown strong performance on video question answering, but their application to long-form videos is constrained by limited context length and computational cost, making keyframe sampling…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Yiheng Wang , Lichen Zhu , Yueqian Lin , Yudong Liu , Jingyang Zhang , Hai "Helen" Li , Yiran Chen

In this paper, we tackle the problem of colorization of grayscale videos to reduce bandwidth usage. For this task, we use some colored keyframes as reference images from the colored version of the grayscale video. We propose a model that…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Ankur Singh , Anurag Chanani , Harish Karnick

This paper proposes a practical multimodal video summarization task setting and a dataset to train and evaluate the task. The target task involves summarizing a given video into a predefined number of keyframe-caption pairs and displaying…

Computation and Language · Computer Science 2023-12-05 Keito Kudo , Haruki Nagasawa , Jun Suzuki , Nobuyuki Shimizu

Long video understanding remains challenging for Multi-modal Large Language Models (MLLMs) due to high memory costs and context-length limits. Prior approaches mitigate this by scoring and selecting frames/tokens within short clips, but…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Haozhe Qi , Kevin Qu , Mahdi Rad , Rui Wang , Alexander Mathis , Marc Pollefeys

Physical computing infrastructure, data gathering, and algorithms have recently had significant advances to extract information from images and videos. The growth has been especially outstanding in image captioning and video captioning.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Soheyla Amirian , Thiab R. Taha , Khaled Rasheed , Hamid R. Arabnia

Video prediction is an extrapolation task that predicts future frames given past frames, and video frame interpolation is an interpolation task that estimates intermediate frames between two frames. We have witnessed the tremendous…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Yue Wu , Qiang Wen , Qifeng Chen

Indoor image features extraction is a fundamental problem in multiple fields such as image processing, pattern recognition, robotics and so on. Nevertheless, most of the existing feature extraction methods, which extract features based on…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Chiranjibi Sitaula , Yong Xiang , Yushu Zhang , Xuequan Lu , Sunil Aryal

Virtual Reality is regaining attention due to recent advancements in hardware technology. Immersive images / videos are becoming widely adopted to carry omnidirectional visual information. However, due to the requirements for higher spatial…

Image and Video Processing · Electrical Eng. & Systems 2021-06-15 Yize Jin , Anjul Patney , Alan Bovik

This paper presents a novel approach for automatic recognition of human activities for video surveillance applications. We propose to represent an activity by a combination of category components, and demonstrate that this approach offers…

Computer Vision and Pattern Recognition · Computer Science 2015-03-03 Weiyao Lin , Ming-Ting Sun , Radha Poovendran , Zhengyou Zhang

The main contributions of this paper are twofold: First, we present an in-depth analysis of the impact of frame rate reductions on the visual quality of the video and the encoding as well as decoding energy. Second, we propose a lightweight…

Image and Video Processing · Electrical Eng. & Systems 2026-03-20 Geetha Ramasubbu , Andrè Kaup , Christian Herglotz

Document Image Analysis, like any Digital Image Analysis requires identification and extraction of proper features, which are generally extracted from uncompressed images, though in reality images are made available in compressed form for…

Computer Vision and Pattern Recognition · Computer Science 2014-04-03 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

Data pipelines are an essential component for end-to-end solutions that take machine learning algorithms to production. Engineering data pipelines for video-sequences poses several challenges including isolation of key-frames from video…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Sohini Roychowdhury , James Y. Sato

Objects in videos are typically characterized by continuous smooth motion. We exploit continuous smooth motion in three ways. 1) Improved accuracy by using object motion as an additional source of supervision, which we obtain by…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Xin Liu , Fatemeh Karimi Nejadasl , Jan C. van Gemert , Olaf Booij , Silvia L. Pintea