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Convolutional Neural Networks (CNNs) have recently been shown to excel at performing visual place recognition under changing appearance and viewpoint. Previously, place recognition has been improved by intelligently selecting relevant…

机器人学 · 计算机科学 2018-10-31 Stephen Hausler , Adam Jacobson , Michael Milford

Human action recognition in videos is a critical task with significant implications for numerous applications, including surveillance, sports analytics, and healthcare. The challenge lies in creating models that are both precise in their…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Yufei Xie

Deep learning has been demonstrated to achieve excellent results for image classification and object detection. However, the impact of deep learning on video analysis (e.g. action detection and recognition) has been limited due to…

计算机视觉与模式识别 · 计算机科学 2017-08-03 Rui Hou , Chen Chen , Mubarak Shah

We present a new method for finding video CNN architectures that capture rich spatio-temporal information in videos. Previous work, taking advantage of 3D convolutions, obtained promising results by manually designing video CNN…

计算机视觉与模式识别 · 计算机科学 2019-08-22 AJ Piergiovanni , Anelia Angelova , Alexander Toshev , Michael S. Ryoo

Videos are inherently multimodal. This paper studies the problem of how to fully exploit the abundant multimodal clues for improved video categorization. We introduce a hybrid deep learning framework that integrates useful clues from…

多媒体 · 计算机科学 2017-06-15 Yu-Gang Jiang , Zuxuan Wu , Jinhui Tang , Zechao Li , Xiangyang Xue , Shih-Fu Chang

Visual attributes in individual video frames, such as the presence of characteristic objects and scenes, offer substantial information for action recognition in videos. With individual 2D video frame as input, visual attributes extraction…

计算机视觉与模式识别 · 计算机科学 2018-05-09 Yunfeng Wang , Wengang Zhou , Qilin Zhang , Houqiang Li

Convolutional Neural Networks (CNN) have become state-of-the-art in the field of image classification. However, not everything is understood about their inner representations. This paper tackles the interpretability and explainability of…

计算机视觉与模式识别 · 计算机科学 2019-11-11 Brian Kenji Iwana , Ryohei Kuroki , Seiichi Uchida

Previous methods for dynamic facial expression in the wild are mainly based on Convolutional Neural Networks (CNNs), whose local operations ignore the long-range dependencies in videos. To solve this problem, we propose the spatio-temporal…

计算机视觉与模式识别 · 计算机科学 2022-05-11 Fuyan Ma , Bin Sun , Shutao Li

Most existing 3D CNNs for video representation learning are clip-based methods, and thus do not consider video-level temporal evolution of spatio-temporal features. In this paper, we propose Video-level 4D Convolutional Neural Networks,…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Shiwen Zhang , Sheng Guo , Weilin Huang , Matthew R. Scott , Limin Wang

Convolutional Neural Network (CNN) based image segmentation has made great progress in recent years. However, video object segmentation remains a challenging task due to its high computational complexity. Most of the previous methods employ…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Rui Hou , Chen Chen , Rahul Sukthankar , Mubarak Shah

Convolutional Neural Networks (CNNs) use pooling to decrease the size of activation maps. This process is crucial to increase the receptive fields and to reduce computational requirements of subsequent convolutions. An important feature of…

计算机视觉与模式识别 · 计算机科学 2021-03-19 Alexandros Stergiou , Ronald Poppe , Grigorios Kalliatakis

Joint segmentation and classification of fine-grained actions is important for applications of human-robot interaction, video surveillance, and human skill evaluation. However, despite substantial recent progress in large-scale action…

计算机视觉与模式识别 · 计算机科学 2016-10-03 Colin Lea , Austin Reiter , Rene Vidal , Gregory D. Hager

Video-based behavior recognition is essential in fields such as public safety, intelligent surveillance, and human-computer interaction. Traditional 3D Convolutional Neural Network (3D CNN) effectively capture local spatiotemporal features…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Xiuliang Zhang , Tadiwa Elisha Nyamasvisva , Chuntao Liu

Nowadays, it is possible to scan faces and automatically register them with high quality. However, the resulting face meshes often need further processing: we need to stabilize them to remove unwanted head movement. Stabilization is…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Jan Bednarik , Erroll Wood , Vasileios Choutas , Timo Bolkart , Daoye Wang , Chenglei Wu , Thabo Beeler

We propose a local modelling approach using deep convolutional neural networks (CNNs) for fine-grained image classification. Recently, deep CNNs trained from large datasets have considerably improved the performance of object recognition.…

计算机视觉与模式识别 · 计算机科学 2015-03-02 ZongYuan Ge , Chris McCool , Conrad Sanderson , Peter Corke

We present an efficient deep learning approach for the challenging task of tumor segmentation in multisequence MR images. In recent years, Convolutional Neural Networks (CNN) have achieved state-of-the-art performances in a large variety of…

计算机视觉与模式识别 · 计算机科学 2018-07-24 Pawel Mlynarski , Hervé Delingette , Antonio Criminisi , Nicholas Ayache

Semantic segmentation is a well-addressed topic in the computer vision literature, but the design of fast and accurate video processing networks remains challenging. In addition, to run on embedded hardware, computer vision models often…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Evann Courdier , François Fleuret

We reduce training time in convolutional networks (CNNs) with a method that, for some of the mini-batches: a) scales down the resolution of input images via downsampling, and b) reduces the forward pass operations via pooling on the…

机器学习 · 计算机科学 2019-10-16 Zissis Poulos , Ali Nouri , Andreas Moshovos

The past several years have seen both an explosion in the use of Convolutional Neural Networks (CNNs) and the design of accelerators to make CNN inference practical. In the architecture community, the lion share of effort has targeted CNN…

机器学习 · 计算机科学 2018-10-17 Kartik Hegde , Rohit Agrawal , Yulun Yao , Christopher W. Fletcher

Facial expression spotting is the preliminary step for micro- and macro-expression analysis. The task of reliably spotting such expressions in video sequences is currently unsolved. The current best systems depend upon optical flow methods…

计算机视觉与模式识别 · 计算机科学 2022-05-30 Chuin Hong Yap , Moi Hoon Yap , Adrian K. Davison , Connah Kendrick , Jingting Li , Sujing Wang , Ryan Cunningham