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This paper presents LiteVLoc, a hierarchical visual localization framework that uses a lightweight topo-metric map to represent the environment. The method consists of three sequential modules that estimate camera poses in a coarse-to-fine…

We propose a novel, efficient, modular and scalable framework for content based visual media retrieval systems by leveraging the power of Deep Learning which is flexible to work both for images and videos conjointly and we also introduce an…

机器学习 · 计算机科学 2021-05-19 Ambareesh Ravi , Amith Nandakumar

The remarkable natural language understanding, reasoning, and generation capabilities of large language models (LLMs) have made them attractive for application to video understanding, utilizing video tokens as contextual input. However,…

计算机视觉与模式识别 · 计算机科学 2025-09-25 Jiaqi Xu , Cuiling Lan , Wenxuan Xie , Xuejin Chen , Yan Lu

In video captioning task, the best practice has been achieved by attention-based models which associate salient visual components with sentences in the video. However, existing study follows a common procedure which includes a frame-level…

计算机视觉与模式识别 · 计算机科学 2018-03-06 Yangyu Chen , Shuhui Wang , Weigang Zhang , Qingming Huang

We propose a soft attention based model for the task of action recognition in videos. We use multi-layered Recurrent Neural Networks (RNNs) with Long Short-Term Memory (LSTM) units which are deep both spatially and temporally. Our model…

机器学习 · 计算机科学 2016-02-16 Shikhar Sharma , Ryan Kiros , Ruslan Salakhutdinov

There has been huge progress on video action recognition in recent years. However, many works focus on tweaking existing 2D backbones due to the reliance of ImageNet pretraining, which restrains the models from achieving higher efficiency…

计算机视觉与模式识别 · 计算机科学 2025-03-05 Zhe Wang , Xulei Yang

The success of deep learning in computer vision has been driven by models of increasing scale, from deep Convolutional Neural Networks (CNN) to large Vision Transformers (ViT). While effective, these architectures are parameter-intensive…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Ange-Clément Akazan , Abdoulaye Koroko , Verlon Roel Mbingui , Choukouriyah Arinloye , Hassan Fifen , Rose Bandolo

This paper addresses fast semantic segmentation on video.Video segmentation often calls for real-time, or even fasterthan real-time, processing. One common recipe for conserving computation arising from feature extraction is to propagate…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Shih-Po Lee , Si-Cun Chen , Wen-Hsiao Peng

Ad-hoc Video Search (AVS) enables users to search for unlabeled video content using on-the-fly textual queries. Current deep learning-based models for AVS are trained to optimize holistic similarity between short videos and their associated…

多媒体 · 计算机科学 2024-01-17 Aozhu Chen , Fangming Zhou , Ziyuan Wang , Xirong Li

Current weakly supervised video anomaly detection algorithms mostly use multiple instance learning (MIL) or their varieties. Almost all recent approaches focus on how to select the correct snippets for training to improve the performance.…

计算机视觉与模式识别 · 计算机科学 2023-04-21 Weijun Tan , Qi Yao , Jingfeng Liu

Recent advancements in large-scale video-language models have shown significant potential for real-time planning and detailed interactions. However, their high computational demands and the scarcity of annotated datasets limit their…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Yuxuan Wang , Yiqi Song , Cihang Xie , Yang Liu , Zilong Zheng

Advanced video classification systems decode video frames to derive the necessary texture and motion representations for ingestion and analysis by spatio-temporal deep convolutional neural networks (CNNs). However, when considering visual…

计算机视觉与模式识别 · 计算机科学 2019-01-03 Mohammad Jubran , Alhabib Abbas , Aaron Chadha , Yiannis Andreopoulos

LoFTR arXiv:2104.00680 is an efficient deep learning method for finding appropriate local feature matches on image pairs. This paper reports on the optimization of this method to work on devices with low computational performance and…

计算机视觉与模式识别 · 计算机科学 2022-02-03 Kyrylo Kolodiazhnyi

Action recognition from videos, i.e., classifying a video into one of the pre-defined action types, has been a popular topic in the communities of artificial intelligence, multimedia, and signal processing. However, existing methods usually…

计算机视觉与模式识别 · 计算机科学 2022-09-05 Xiaodong Chen , Xinchen Liu , Wu Liu , Kun Liu , Dong Wu , Yongdong Zhang , Tao Mei

In recent years, advances in Artificial Intelligence have significantly impacted computer science, particularly in the field of computer vision, enabling solutions to complex problems such as video frame prediction. Video frame prediction…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Jose M. Sánchez Velázquez , Mingbo Cai , Andrew Coney , Álvaro J. García- Tejedor , Alberto Nogales

Robust scene segmentation and keyframe extraction are essential preprocessing steps in video understanding pipelines, supporting tasks such as indexing, summarization, and semantic retrieval. However, existing methods often lack…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Vasilii Korolkov

Recent years have seen remarkable progress in semantic segmentation. Yet, it remains a challenging task to apply segmentation techniques to video-based applications. Specifically, the high throughput of video streams, the sheer cost of…

计算机视觉与模式识别 · 计算机科学 2018-04-03 Yule Li , Jianping Shi , Dahua Lin

This work presents and analyzes three convolutional neural network (CNN) models for efficient pixelwise classification of images. When using convolutional neural networks to classify single pixels in patches of a whole image, a lot of…

计算机视觉与模式识别 · 计算机科学 2015-09-14 Fabian Tschopp

In this paper, we introduce a deep learning solution for video activity recognition that leverages an innovative combination of convolutional layers with a linear-complexity attention mechanism. Moreover, we introduce a novel quantization…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Gabriele Lagani , Fabrizio Falchi , Claudio Gennaro , Giuseppe Amato

Recent advancements in video-language understanding have been established on the foundation of image-text models, resulting in promising outcomes due to the shared knowledge between images and videos. However, video-language understanding…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Xiao Wang , Yaoyu Li , Tian Gan , Zheng Zhang , Jingjing Lv , Liqiang Nie