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Convolutional neural networks (CNNs) can model complicated non-linear relations between images. However, they are notoriously sensitive to small changes in the input. Most CNNs trained to describe image-to-image mappings generate temporally…

计算机视觉与模式识别 · 计算机科学 2020-04-15 Gabriel Eilertsen , Rafał K. Mantiuk , Jonas Unger

We present a real-time deep learning framework for video-based facial performance capture -- the dense 3D tracking of an actor's face given a monocular video. Our pipeline begins with accurately capturing a subject using a high-end…

计算机视觉与模式识别 · 计算机科学 2017-06-05 Samuli Laine , Tero Karras , Timo Aila , Antti Herva , Shunsuke Saito , Ronald Yu , Hao Li , Jaakko Lehtinen

Due to the large memory footprint of untrimmed videos, current state-of-the-art video localization methods operate atop precomputed video clip features. These features are extracted from video encoders typically trained for trimmed action…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Humam Alwassel , Silvio Giancola , Bernard Ghanem

The recent advances in Convolutional Neural Networks (CNNs) and Vision Transformers have convincingly demonstrated high learning capability for video action recognition on large datasets. Nevertheless, deep models often suffer from the…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Yi Tan , Zhaofan Qiu , Yanbin Hao , Ting Yao , Tao Mei

Convolutional neural network (CNN) slides a kernel over the whole image to produce an output map. This kernel scheme reduces the number of parameters with respect to a fully connected neural network (NN). While CNN has proven to be an…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Ihsan Ullah , Alfredo Petrosino

We describe a deep learning based method for estimating 3D facial expression coefficients. Unlike previous work, our process does not relay on facial landmark detection methods as a proxy step. Recent methods have shown that a CNN can be…

计算机视觉与模式识别 · 计算机科学 2018-02-05 Feng-Ju Chang , Anh Tuan Tran , Tal Hassner , Iacopo Masi , Ram Nevatia , Gerard Medioni

A major obstacle to building models for effective semantic segmentation, and particularly video semantic segmentation, is a lack of large and well annotated datasets. This bottleneck is particularly prohibitive in highly specialized and…

Effective processing of video input is essential for the recognition of temporally varying events such as human actions. Motivated by the often distinctive temporal characteristics of actions in either horizontal or vertical direction, we…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Alexandros Stergiou , Ronald Poppe

Dynamic Textures (DTs) are sequences of images of moving scenes that exhibit certain stationarity properties in time such as smoke, vegetation and fire. The analysis of DT is important for recognition, segmentation, synthesis or retrieval…

计算机视觉与模式识别 · 计算机科学 2017-03-17 Vincent Andrearczyk , Paul F. Whelan

We propose a real time deep learning framework for video-based facial expression capture. Our process uses a high-end facial capture pipeline based on FACEGOOD to capture facial expression. We train a convolutional neural network to produce…

计算机视觉与模式识别 · 计算机科学 2021-11-16 Hongwei Xu , Leijia Dai , Jianxing Fu , Xiangyuan Wang , Quanwei Wang

Convolutional neural networks (CNNs) are widely used for high-stakes applications like medicine, often surpassing human performance. However, most explanation methods rely on post-hoc attribution, approximating the decision-making process…

机器学习 · 计算机科学 2026-02-23 Kerol Djoumessi , Philipp Berens

Convolutional neural networks with spatio-temporal 3D kernels (3D CNNs) have an ability to directly extract spatio-temporal features from videos for action recognition. Although the 3D kernels tend to overfit because of a large number of…

计算机视觉与模式识别 · 计算机科学 2017-08-28 Kensho Hara , Hirokatsu Kataoka , Yutaka Satoh

Deep convolutional neural networks (CNNs) have shown excellent performance in object recognition tasks and dense classification problems such as semantic segmentation. However, training deep neural networks on large and sparse datasets is…

计算机视觉与模式识别 · 计算机科学 2017-12-25 Lorenz Berger , Eoin Hyde , M. Jorge Cardoso , Sebastien Ourselin

For many years, the emotion recognition task has remained one of the most interesting and important problems in the field of human-computer interaction. In this study, we consider the emotion recognition task as a classification as well as…

计算机视觉与模式识别 · 计算机科学 2020-06-22 Denis Rangulov , Muhammad Fahim

Deep Neural Networks (DNNs) have shown to outperform traditional methods in various visual recognition tasks including Facial Expression Recognition (FER). In spite of efforts made to improve the accuracy of FER systems using DNN, existing…

计算机视觉与模式识别 · 计算机科学 2020-04-17 Behzad Hasani , Mohammad H. Mahoor

Spatial convolutions are widely used in numerous deep video models. It fundamentally assumes spatio-temporal invariance, i.e., using shared weights for every location in different frames. This work presents Temporally-Adaptive Convolutions…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Ziyuan Huang , Shiwei Zhang , Liang Pan , Zhiwu Qing , Mingqian Tang , Ziwei Liu , Marcelo H. Ang

Temporal modeling still remains challenging for action recognition in videos. To mitigate this issue, this paper presents a new video architecture, termed as Temporal Difference Network (TDN), with a focus on capturing multi-scale temporal…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Limin Wang , Zhan Tong , Bin Ji , Gangshan Wu

It is not trivial to optimally learn a 3D Convolutional Neural Networks (3D ConvNets) due to high complexity and various options of the training scheme. The most common hand-tuning process starts from learning 3D ConvNets using short video…

计算机视觉与模式识别 · 计算机科学 2022-01-12 Zhaofan Qiu , Ting Yao , Chong-Wah Ngo , Tao Mei

High level understanding of sequential visual input is important for safe and stable autonomy, especially in localization and object detection. While traditional object classification and tracking approaches are specifically designed to…

计算机视觉与模式识别 · 计算机科学 2017-07-25 Mo Shan , Nikolay Atanasov

Spatial convolutions are extensively used in numerous deep video models. It fundamentally assumes spatio-temporal invariance, i.e., using shared weights for every location in different frames. This work presents Temporally-Adaptive…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Ziyuan Huang , Shiwei Zhang , Liang Pan , Zhiwu Qing , Yingya Zhang , Ziwei Liu , Marcelo H. Ang