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We present two methods for detecting patterns and clusters in high dimensional time-dependent functional data. Our methods are based on wavelet-based similarity measures, since wavelets are well suited for identifying highly discriminant…

Methodology · Statistics 2013-02-15 Anestis Antoniadis , Xavier Brossat , Jairo Cugliari , Jean-Michel Poggi

Frame selection is crucial due to high frame redundancy and limited context windows when applying Large Vision-Language Models (LVLMs) to long videos. Current methods typically select frames with high relevance to a given query, resulting…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Wang Chen , Yuhui Zeng , Yongdong Luo , Tianyu Xie , Luojun Lin , Jiayi Ji , Yan Zhang , Xiawu Zheng

The growth of videos in our digital age and the users' limited time raise the demand for processing untrimmed videos to produce shorter versions conveying the same information. Despite the remarkable progress that summarization methods have…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Washington Ramos , Michel Silva , Edson Araujo , Victor Moura , Keller Oliveira , Leandro Soriano Marcolino , Erickson R. Nascimento

Scene text spotting is essential in various computer vision applications, enabling extracting and interpreting textual information from images. However, existing methods often neglect the spatial semantics of word images, leading to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Hao Wang , Huabing Zhou , Yanduo Zhang , Tao Lu , Jiayi Ma

Texture is the term used to characterize the surface of a given object or phenomenon and is an important feature used in image processing and pattern recognition. Our aim is to compare various Texture analyzing methods and compare the…

Computer Vision and Pattern Recognition · Computer Science 2012-10-30 Pooja Maknikar

Text-video retrieval is a challenging task that aims to identify relevant videos given textual queries. Compared to conventional textual retrieval, the main obstacle for text-video retrieval is the semantic gap between the textual nature of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Qian Li , Lixin Su , Jiashu Zhao , Long Xia , Hengyi Cai , Suqi Cheng , Hengzhu Tang , Junfeng Wang , Dawei Yin

Prior works on text-based video moment localization focus on temporally grounding the textual query in an untrimmed video. These works assume that the relevant video is already known and attempt to localize the moment on that relevant video…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Sudipta Paul , Niluthpol Chowdhury Mithun , Amit K. Roy-Chowdhury

It is known that the continuous wavelet transform of a function $f$ decays very rapidly near the points where $f$ is smooth, while it decays slowly near the irregular points. This property allows one to precisely identify the singular…

Functional Analysis · Mathematics 2007-05-23 Gitta Kutyniok , Demetrio Labate

Sequence generation models have recently made significant progress in unifying various vision tasks. Although some auto-regressive models have demonstrated promising results in end-to-end text spotting, they use specific detection formats…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Taeho Kil , Seonghyeon Kim , Sukmin Seo , Yoonsik Kim , Daehee Kim

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…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Shih-Po Lee , Si-Cun Chen , Wen-Hsiao Peng

With the rapid growth of surveillance cameras in many public places to mon-itor human activities such as in malls, streets, schools and, prisons, there is a strong demand for such systems to detect violence events automatically. Au-tomatic…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Heyam M. Bin Jahlan , Lamiaa A. Elrefaei

Recently, regression-based methods, which predict parameterized text shapes for text localization, have gained popularity in scene text detection. However, the existing parameterized text shape methods still have limitations in modeling…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Yuchen Su , Zhineng Chen , Zhiwen Shao , Yuning Du , Zhilong Ji , Jinfeng Bai , Yong Zhou , Yu-Gang Jiang

Generally pre-training and long-time training computation are necessary for obtaining a good-performance text detector based on deep networks. In this paper, we present a new scene text detection network (called FANet) with a Fast…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Yuzhong Zhao , Yuanqiang Cai , Weijia Wu , Weiqiang Wang

Our objective is language-based search of large-scale image and video datasets. For this task, the approach that consists of independently mapping text and vision to a joint embedding space, a.k.a. dual encoders, is attractive as retrieval…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Antoine Miech , Jean-Baptiste Alayrac , Ivan Laptev , Josef Sivic , Andrew Zisserman

Recently, scene text detection has been a challenging task. Texts with arbitrary shape or large aspect ratio are usually hard to detect. Previous segmentation-based methods can describe curve text more accurately but suffer from over…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Qi Zhao , Yufei Wang , Shuchang Lyu , Lijiang Chen

Weakly supervised multimodal video anomaly detection has gained significant attention, yet the potential of the text modality remains under-explored. Text provides explicit semantic information that can enhance anomaly characterization and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Shengyang Sun , Jiashen Hua , Junyi Feng , Xiaojin Gong

This paper presents a video summarization technique for an Internet video to provide a quick way to overview its content. This is a challenging problem because finding important or informative parts of the original video requires to…

Computer Vision and Pattern Recognition · Computer Science 2016-09-29 Mayu Otani , Yuta Nakashima , Esa Rahtu , Janne Heikkilä , Naokazu Yokoya

We investigate a biologically motivated approach to fast visual classification, directly inspired by the recent work of Serre et al. Specifically, trading-off biological accuracy for computational efficiency, we explore using wavelet and…

Computer Vision and Pattern Recognition · Computer Science 2008-06-10 Guoshen Yu , Jean-Jacques Slotine

This paper aims at presenting a new approach to the electro-sensing problem using wavelets. It provides an efficient algorithm for recognizing the shape of a target from micro-electrical impedance measurements. Stability and resolution…

Numerical Analysis · Mathematics 2013-10-11 Habib Ammari , Stéphane Mallat , Irène Waldspurger , Han Wang

To improve the efficiency of surgical trajectory segmentation for robot learning in robot-assisted minimally invasive surgery, this paper presents a fast unsupervised method using video and kinematic data, followed by a promoting procedure…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Zhenzhou Shao , Hongfa Zhao , Jiexin Xie , Ying Qu , Yong Guan , Jindong Tan
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