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We investigate video classification via a two-stream convolutional neural network (CNN) design that directly ingests information extracted from compressed video bitstreams. Our approach begins with the observation that all modern video…

计算机视觉与模式识别 · 计算机科学 2017-12-21 Aaron Chadha , Alhabib Abbas , Yiannis Andreopoulos

Large volumes of videos are continuously recorded from cameras deployed for traffic control and surveillance with the goal of answering "after the fact" queries: identify video frames with objects of certain classes (cars, bags) from many…

The combination of a CNN detector and a search framework forms the basis for local object/pattern detection. To handle the waste of regional information and the defective compromise between efficiency and accuracy, this paper proposes a…

计算机视觉与模式识别 · 计算机科学 2018-08-28 Fang-Qi Li , Xu-Die Ren , Hao-Nan Guo

Two approaches are proposed for cross-pose face recognition, one is based on the 3D reconstruction of facial components and the other is based on the deep Convolutional Neural Network (CNN). Unlike most 3D approaches that consider holistic…

计算机视觉与模式识别 · 计算机科学 2017-09-01 Gee-Sern , Hsu , Hung-Cheng Shie , Cheng-Hua Hsieh

Generative models have enabled the creation of highly realistic facial-synthetic images, raising significant concerns due to their potential for misuse. Despite rapid advancements in the field of deepfake detection, developing efficient…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Yue-Hua Han , Tai-Ming Huang , Kai-Lung Hua , Jun-Cheng Chen

In the context of fine-grained visual categorization, the ability to interpret models as human-understandable visual manuals is sometimes as important as achieving high classification accuracy. In this paper, we propose a novel Part-Stacked…

计算机视觉与模式识别 · 计算机科学 2019-08-17 Shaoli Huang , Zhe Xu , Dacheng Tao , Ya Zhang

Image representations derived from pre-trained Convolutional Neural Networks (CNNs) have become the new state of the art in computer vision tasks such as instance retrieval. This work explores the suitability for instance retrieval of…

计算机视觉与模式识别 · 计算机科学 2016-05-02 Amaia Salvador , Xavier Giro-i-Nieto , Ferran Marques , Shin'ichi Satoh

Object detection is one of the most active areas in computer vision, which has made significant improvement in recent years. Current state-of-the-art object detection methods mostly adhere to the framework of regions with convolutional…

计算机视觉与模式识别 · 计算机科学 2016-04-15 Wenqing Chu , Deng Cai

We propose a Spatiotemporal Sampling Network (STSN) that uses deformable convolutions across time for object detection in videos. Our STSN performs object detection in a video frame by learning to spatially sample features from the adjacent…

计算机视觉与模式识别 · 计算机科学 2018-07-25 Gedas Bertasius , Lorenzo Torresani , Jianbo Shi

Forgery operations on video contents are nowadays within the reach of anyone, thanks to the availability of powerful and user-friendly editing software. Integrity verification and authentication of videos represent a major interest in both…

计算机视觉与模式识别 · 计算机科学 2021-06-04 Sebastiano Verde , Paolo Bestagini , Simone Milani , Giancarlo Calvagno , Stefano Tubaro

In this paper, we introduce a novel network, called discriminative feature network (DFNet), to address the unsupervised video object segmentation task. To capture the inherent correlation among video frames, we learn discriminative features…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Mingmin Zhen , Shiwei Li , Lei Zhou , Jiaxiang Shang , Haoan Feng , Tian Fang , Long Quan

We consider the problem of detecting objects, as they come into view, from videos in an online fashion. We provide the first real-time solution that is guaranteed to minimize the delay, i.e., the time between when the object comes in view…

计算机视觉与模式识别 · 计算机科学 2019-08-30 Dong Lao , Ganesh Sundaramoorthi

Feature means countenance, remote sensing scene objects with similar characteristics, associated to interesting scene elements in the image formation process. They are classified into three types in image processing, that is low, middle and…

计算机视觉与模式识别 · 计算机科学 2013-07-18 T. Dharani , I. Laurence Aroquiaraj

Scene understanding plays an important role in several high-level computer vision applications, such as autonomous vehicles, intelligent video surveillance, or robotics. However, too few solutions have been proposed for indoor/outdoor scene…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Ayman Beghdadi , Azeddine Beghdadi , Mohib Ullah , Faouzi Alaya Cheikh , Malik Mallem

Video object detection has made significant progress in recent years thanks to convolutional neural networks (CNNs) and vision transformers (ViTs). Typically, CNNs excel at capturing local features but struggle to model global…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Qiang Qi , Xiao Wang

Convolutional networks optimized for accuracy on challenging, dense prediction tasks are prohibitively slow to run on each frame in a video. The spatial similarity of nearby video frames, however, suggests opportunity to reuse computation.…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Samvit Jain , Joseph E. Gonzalez

In this paper, we construct a lightweight, high-precision and high-speed object tracking using a trained CNN. Conventional methods with trained CNNs use VGG16 network which requires powerful computational resources. Therefore, there is a…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Tsubasa Murate , Takashi Watanabe , Masaki Yamada

We propose a novel scheme for human action recognition in videos, using a 3-dimensional Convolutional Neural Network (3D CNN) based classifier. Traditionally in deep learning based human activity recognition approaches, either a few random…

计算机视觉与模式识别 · 计算机科学 2020-02-10 S. H. Shabbeer Basha , Viswanath Pulabaigari , Snehasis Mukherjee

This work introduces a dataset, benchmark, and challenge for the problem of video copy detection and localization. The problem comprises two distinct but related tasks: determining whether a query video shares content with a reference video…

This paper introduces an online model for object detection in videos designed to run in real-time on low-powered mobile and embedded devices. Our approach combines fast single-image object detection with convolutional long short term memory…

计算机视觉与模式识别 · 计算机科学 2018-03-30 Mason Liu , Menglong Zhu