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Related papers: Action Detection via an Image Diffusion Process

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Action parsing in videos with complex scenes is an interesting but challenging task in computer vision. In this paper, we propose a generic 3D convolutional neural network in a multi-task learning manner for effective Deep Action Parsing…

Computer Vision and Pattern Recognition · Computer Science 2016-02-11 Li Liu , Yi Zhou , Ling Shao

Diffusion models have shown remarkable success in visual synthesis, but have also raised concerns about potential abuse for malicious purposes. In this paper, we seek to build a detector for telling apart real images from…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Zhendong Wang , Jianmin Bao , Wengang Zhou , Weilun Wang , Hezhen Hu , Hong Chen , Houqiang Li

The interactions between human and objects are important for recognizing object-centric actions. Existing methods usually adopt a two-stage pipeline, where object proposals are first detected using a pretrained detector, and then are fed to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Xunsong Li , Pengzhan Sun , Yangcen Liu , Lixin Duan , Wen Li

Estimating the pose of objects from images is a crucial task of 3D scene understanding, and recent approaches have shown promising results on very large benchmarks. However, these methods experience a significant performance drop when…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Tianfu Wang , Guosheng Hu , Hongguang Wang

Anomaly detection in video is a challenging computer vision problem. Due to the lack of anomalous events at training time, anomaly detection requires the design of learning methods without full supervision. In this paper, we approach…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mariana-Iuliana Georgescu , Antonio Barbalau , Radu Tudor Ionescu , Fahad Shahbaz Khan , Marius Popescu , Mubarak Shah

Video Anomaly Detection (VAD) is essential for computer vision research. Existing VAD methods utilize either reconstruction-based or prediction-based frameworks. The former excels at detecting irregular patterns or structures, whereas the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Hongsong Wang , Andi Xu , Pinle Ding , Jie Gui

Object detection is fundamental to various real-world applications, such as security monitoring and surveillance video analysis. Despite their advancements, state-of-the-art object detectors are still vulnerable to adversarial patch…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Jin Ma , Mohammed Aldeen , Christopher Salas , Feng Luo , Mashrur Chowdhury , Mert Pesé , Long Cheng

Despite the fact that notable improvements have been made recently in the field of feature extraction and classification, human action recognition is still challenging, especially in images, in which, unlike videos, there is no motion.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Sina Mohammadi , Sina Ghofrani Majelan , Shahriar B. Shokouhi

One of the fundamental goals of visual perception is to allow agents to meaningfully interact with their environment. In this paper, we take a step towards that long-term goal -- we extract highly localized actionable information related to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Kaichun Mo , Leonidas Guibas , Mustafa Mukadam , Abhinav Gupta , Shubham Tulsiani

This paper investigates the performance of diffusion models for video anomaly detection (VAD) within the most challenging but also the most operational scenario in which the data annotations are not used. As being sparse, diverse,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Anil Osman Tur , Nicola Dall'Asen , Cigdem Beyan , Elisa Ricci

Recent years have witnessed the significant progress of action recognition task with deep networks. However, most of current video networks require large memory and computational resources, which hinders their applications in practice.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-16 Haisheng Su , Jing Su , Dongliang Wang , Weihao Gan , Wei Wu , Mengmeng Wang , Junjie Yan , Yu Qiao

Multi-object tracking (MOT) is a challenging vision task that aims to detect individual objects within a single frame and associate them across multiple frames. Recent MOT approaches can be categorized into two-stage tracking-by-detection…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Run Luo , Zikai Song , Lintao Ma , Jinlin Wei , Wei Yang , Min Yang

A human action can be seen as transitions between one's body poses over time, where the transition depicts a temporal relation between two poses. Recognizing actions thus involves learning a classifier sensitive to these pose transitions as…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Guillermo Garcia-Hernando , Tae-Kyun Kim

The recent wave of AI-generated content (AIGC) has witnessed substantial success in computer vision, with the diffusion model playing a crucial role in this achievement. Due to their impressive generative capabilities, diffusion models are…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Zhen Xing , Qijun Feng , Haoran Chen , Qi Dai , Han Hu , Hang Xu , Zuxuan Wu , Yu-Gang Jiang

Given the complexities inherent in visual scenes, such as object occlusion, a comprehensive understanding often requires observation from multiple viewpoints. Existing multi-viewpoint object-centric learning methods typically employ random…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Yinxuan Huang , Chengmin Gao , Bin Li , Xiangyang Xue

We present a method to generate video-action pairs that follow text instructions, starting from an initial image observation and the robot's joint states. Our approach automatically provides action labels for video diffusion models,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Liudi Yang , Yang Bai , George Eskandar , Fengyi Shen , Mohammad Altillawi , Dong Chen , Ziyuan Liu , Abhinav Valada

Despite the recent strides in video generation, state-of-the-art methods still struggle with elements of visual detail. One particularly challenging case is the class of videos in which the intricate motion of the hand coupled with a mostly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Yayuan Li , Zhi Cao , Jason J. Corso

Motion is a salient cue to recognize actions in video. Modern action recognition models leverage motion information either explicitly by using optical flow as input or implicitly by means of 3D convolutional filters that simultaneously…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Heng Wang , Du Tran , Lorenzo Torresani , Matt Feiszli

Diffusion models are the current state-of-the-art in image generation, synthesizing high-quality images by breaking down the generation process into many fine-grained denoising steps. Despite their good performance, diffusion models are…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Noam Elata , Bahjat Kawar , Tomer Michaeli , Michael Elad

Generating animated 3D objects is at the heart of many applications, yet most advanced works are typically difficult to apply in practice because of their limited setup, their long runtime, or their limited quality. We introduce ActionMesh,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Remy Sabathier , David Novotny , Niloy J. Mitra , Tom Monnier