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We tackle the complex problem of detecting and recognising anomalies in surveillance videos at the frame level, utilising only video-level supervision. We introduce the novel method AnomalyCLIP, the first to combine Large Language and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Luca Zanella , Benedetta Liberatori , Willi Menapace , Fabio Poiesi , Yiming Wang , Elisa Ricci

The identification of structural differences between a music performance and the score is a challenging yet integral step of audio-to-score alignment, an important subtask of music information retrieval. We present a novel method to detect…

Sound · Computer Science 2021-02-16 Ruchit Agrawal , Daniel Wolff , Simon Dixon

We investigate unsupervised learning of correspondences between sound events and textual phrases through aligning audio clips with textual captions describing the content of a whole audio clip. We align originally unaligned and unannotated…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-22 Huang Xie , Okko Räsänen , Konstantinos Drossos , Tuomas Virtanen

The segmentation of video sequences into foreground and background regions is a low-level process commonly used in video content analysis and smart surveillance applications. Using a multispectral camera setup can improve this process by…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Pierre-Luc St-Charles , Guillaume-Alexandre Bilodeau , Robert Bergevin

The increasing use of machine learning models has amplified the demand for high-quality, large-scale multimodal datasets. However, the availability of such datasets, especially those combining acoustic, visual and textual data, remains…

Multimedia · Computer Science 2025-09-09 Jorge E. León , Miguel Carrasco

How does audio describe the world around us? In this work, we propose a method for generating images of visual scenes from diverse in-the-wild sounds. This cross-modal generation task is challenging due to the significant information gap…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Kim Sung-Bin , Arda Senocak , Hyunwoo Ha , Tae-Hyun Oh

We present CLIP2Video network to transfer the image-language pre-training model to video-text retrieval in an end-to-end manner. Leading approaches in the domain of video-and-language learning try to distill the spatio-temporal video…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Han Fang , Pengfei Xiong , Luhui Xu , Yu Chen

Detecting forgery videos is highly desirable due to the abuse of deepfake. Existing detection approaches contribute to exploring the specific artifacts in deepfake videos and fit well on certain data. However, the growing technique on these…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Harry Cheng , Yangyang Guo , Tianyi Wang , Qi Li , Xiaojun Chang , Liqiang Nie

Recognizing sounds is a key aspect of computational audio scene analysis and machine perception. In this paper, we advocate that sound recognition is inherently a multi-modal audiovisual task in that it is easier to differentiate sounds…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-03 Haytham M. Fayek , Anurag Kumar

There is a common observation that audio event classification is easier to deal with than detection. So far, this observation has been accepted as a fact and we lack of a careful analysis. In this paper, we reason the rationale behind this…

Videos for outdoor scene often show unpleasant blur effects due to the large relative motion between the camera and the dynamic objects and large depth variations. Existing works typically focus monocular video deblurring. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Liyuan Pan , Yuchao Dai , Miaomiao Liu , Fatih Porikli

Content-based adult video detection plays an important role in preventing pornography. However, existing methods usually rely on single modality and seldom focus on multi-modality semantics representation. Addressing at this problem, we put…

Computer Vision and Pattern Recognition · Computer Science 2019-01-14 Yizhi Liu , Xiaoyan Gu , Lei Huang , Junlin Ouyang , Miao Liao , Liangran Wu

Audio-visual segmentation (AVS) is a challenging task that involves accurately segmenting sounding objects based on audio-visual cues. The effectiveness of audio-visual learning critically depends on achieving accurate cross-modal alignment…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Yuanhong Chen , Yuyuan Liu , Hu Wang , Fengbei Liu , Chong Wang , Helen Frazer , Gustavo Carneiro

Having access to multi-modal cues (e.g. vision and audio) empowers some cognitive tasks to be done faster compared to learning from a single modality. In this work, we propose to transfer knowledge across heterogeneous modalities, even…

Computer Vision and Pattern Recognition · Computer Science 2021-04-23 Yanbei Chen , Yongqin Xian , A. Sophia Koepke , Ying Shan , Zeynep Akata

We propose a new framework for extracting visual information about a scene only using audio signals. Audio-based methods can overcome some of the limitations of vision-based methods i.e., they do not require "line-of-sight", are robust to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Fabrizio Pedersoli , Dryden Wiebe , Amin Banitalebi , Yong Zhang , George Tzanetakis , Kwang Moo Yi

Human perception and experience of music is highly context-dependent. Contextual variability contributes to differences in how we interpret and interact with music, challenging the design of robust models for information retrieval.…

Sound · Computer Science 2022-10-31 Kleanthis Avramidis , Shanti Stewart , Shrikanth Narayanan

In this paper, we propose a method for real-time anomaly detection and localization in crowded scenes. Each video is defined as a set of non-overlapping cubic patches, and is described using two local and global descriptors. These…

Computer Vision and Pattern Recognition · Computer Science 2015-11-24 Mohammad Sabokrou , Mahmood Fathy , Mojtaba Hosseini , Reinhard Klette

Understanding dark scenes based on multi-modal image data is challenging, as both the visible and auxiliary modalities provide limited semantic information for the task. Previous methods focus on fusing the two modalities but neglect the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Xiaoyu Dong , Naoto Yokoya

Current audio classification models have small class vocabularies relative to the large number of sound event classes of interest in the real world. Thus, they provide a limited view of the world that may miss important yet unexpected or…

Sound · Computer Science 2023-10-24 Sripathi Sridhar , Mark Cartwright

The goal of video highlight detection is to select the most attractive segments from a long video to depict the most interesting parts of the video. Existing methods typically focus on modeling relationship between different video segments…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Fanyue Wei , Biao Wang , Tiezheng Ge , Yuning Jiang , Wen Li , Lixin Duan