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Object detection, one of the three main tasks of computer vision, has been used in various applications. The main process is to use deep neural networks to extract the features of an image and then use the features to identify the class and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Wenshuo Li

Graph Convolution Network (GCN) has been successfully used for 3D human pose estimation in videos. However, it is often built on the fixed human-joint affinity, according to human skeleton. This may reduce adaptation capacity of GCN to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Junhao Zhang , Yali Wang , Zhipeng Zhou , Tianyu Luan , Zhe Wang , Yu Qiao

The recent advances in Deep Convolutional Neural Networks (DCNNs) have shown extremely good results for video human action classification, however, action detection is still a challenging problem. The current action detection approaches…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Kevin Duarte , Yogesh S Rawat , Mubarak Shah

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…

Computer Vision and Pattern Recognition · Computer Science 2016-10-03 Colin Lea , Austin Reiter , Rene Vidal , Gregory D. Hager

This paper presents a novel unsupervised segmentation method for 3D medical images. Convolutional neural networks (CNNs) have brought significant advances in image segmentation. However, most of the recent methods rely on supervised…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Takayasu Moriya , Holger R. Roth , Shota Nakamura , Hirohisa Oda , Kai Nagara , Masahiro Oda , Kensaku Mori

We propose a novel skeleton-based representation for 3D action recognition in videos using Deep Convolutional Neural Networks (D-CNNs). Two key issues have been addressed: First, how to construct a robust representation that easily captures…

Computer Vision and Pattern Recognition · Computer Science 2018-07-19 Huy Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

A multi-view image sequence provides a much richer capacity for object recognition than from a single image. However, most existing solutions to multi-view recognition typically adopt hand-crafted, model-based geometric methods, which do…

Computer Vision and Pattern Recognition · Computer Science 2016-05-27 Edward Johns , Stefan Leutenegger , Andrew J. Davison

Recent studies have demonstrated the power of recurrent neural networks for machine translation, image captioning and speech recognition. For the task of capturing temporal structure in video, however, there still remain numerous open…

Computer Vision and Pattern Recognition · Computer Science 2016-02-11 Lionel Pigou , Aäron van den Oord , Sander Dieleman , Mieke Van Herreweghe , Joni Dambre

Image descriptors based on activations of Convolutional Neural Networks (CNNs) have become dominant in image retrieval due to their discriminative power, compactness of representation, and search efficiency. Training of CNNs, either from…

Computer Vision and Pattern Recognition · Computer Science 2018-07-12 Filip Radenović , Giorgos Tolias , Ondřej Chum

Recently, mid-level features have shown promising performance in computer vision. Mid-level features learned by incorporating class-level information are potentially more discriminative than traditional low-level local features. In this…

Computer Vision and Pattern Recognition · Computer Science 2014-09-16 Pichao Wang , Wanqing Li , Philip Ogunbona , Zhimin Gao , Hanling Zhang

In this paper, we address the problem of image retrieval by learning images representation based on the activations of a Convolutional Neural Network. We present an end-to-end trainable network architecture that exploits a novel multi-scale…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Federico Vaccaro , Marco Bertini , Tiberio Uricchio , Alberto Del Bimbo

This article trained a network for perceiving three-dimensional motion information of binocular vision target, which can provide real-time three-dimensional coordinate, velocity, and acceleration, and has a basic spatiotemporal perception…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Jiazhao Shi , Pan Pan , Haotian Shi

We introduce a deep convolutional neural networks (CNN) architecture to classify facial attributes and recognize face images simultaneously via a shared learning paradigm to improve the accuracy for facial attribute prediction and face…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Mohammad Rasool Izadi

A longstanding question in computer vision concerns the representation of 3D shapes for recognition: should 3D shapes be represented with descriptors operating on their native 3D formats, such as voxel grid or polygon mesh, or can they be…

Computer Vision and Pattern Recognition · Computer Science 2015-09-29 Hang Su , Subhransu Maji , Evangelos Kalogerakis , Erik Learned-Miller

We desgin a novel fully convolutional network architecture for shapes, denoted by Shape Fully Convolutional Networks (SFCN). 3D shapes are represented as graph structures in the SFCN architecture, based on novel graph convolution and…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Pengyu Wang , Yuan Gan , Panpan Shui , Fenggen Yu , Yan Zhang , Songle Chen , Zhengxing Sun

Existing deep convolutional neural networks (CNNs) require a fixed-size (e.g., 224x224) input image. This requirement is "artificial" and may reduce the recognition accuracy for the images or sub-images of an arbitrary size/scale. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Kaiming He , Xiangyu Zhang , Shaoqing Ren , Jian Sun

In the dynamic realm of deepfake detection, this work presents an innovative approach to validate video content. The methodology blends advanced 2-dimensional and 3-dimensional Convolutional Neural Networks. The 3D model is uniquely…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Aagam Bakliwal , Amit D. Joshi

3D human pose estimation in multi-view operating room (OR) videos is a relevant asset for person tracking and action recognition. However, the surgical environment makes it challenging to find poses due to sterile clothing, frequent…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Beerend G. A. Gerats , Jelmer M. Wolterink , Ivo A. M. J. Broeders

Humans effortlessly recognize social interactions from visual input, yet the underlying computations remain unknown, and social interaction recognition challenges even the most advanced deep neural networks (DNNs). Here, we hypothesized…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Wenshuo Qin , Leyla Isik

Action recognition is a critical task for social robots to meaningfully engage with their environment. 3D human skeleton-based action recognition is an attractive research area in recent years. Although, the existing approaches are good at…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Hui Feng , Shanshan Wang , Shuzhi Sam Ge