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A deep convolutional neural network (CNN) has been widely used in image classification and gives better classification accuracy than the other techniques. The softmax cross-entropy loss function is often used for classification tasks. There…

计算机视觉与模式识别 · 计算机科学 2020-04-20 Motoshi Abe , Junichi Miyao , Takio Kurita

Micro-expressions (MEs) are subtle, transient facial changes with very low intensity, almost imperceptible to the naked eye, yet they reveal a person genuine emotion. They are of great value in lie detection, behavioral analysis, and…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Thi Bich Phuong Man , Luu Tu Nguyen , Vu Tram Anh Khuong , Thanh Ha Le , Thi Duyen Ngo

In this paper, we investigate the relationship between deep neural networks (DNN) with rectified linear unit (ReLU) function as the activation function and continuous piecewise linear (CPWL) functions, especially CPWL functions from the…

数值分析 · 数学 2020-06-02 Juncai He , Lin Li , Jinchao Xu , Chunyue Zheng

This paper proposes a novel regularization approach to bias Convolutional Neural Networks (CNNs) toward utilizing edge and line features in their hidden layers. Rather than learning arbitrary kernels, we constrain the convolution layers to…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Christoph Linse , Beatrice Brückner , Thomas Martinetz

Micro-expressions (MEs) are brief, involuntary facial movements that reveal genuine emotions, typically lasting less than half a second. Recognizing these subtle expressions is critical for applications in psychology, security, and…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Vu Tram Anh Khuong , Luu Tu Nguyen , Thanh Ha Le , Thi Duyen Ngo

Facial Expression Recognition (FER) is a machine learning problem that deals with recognizing human facial expressions. While existing work has achieved performance improvements in recent years, FER in the wild and under challenging…

计算机视觉与模式识别 · 计算机科学 2024-08-14 Jia Le Ngwe , Kian Ming Lim , Chin Poo Lee , Thian Song Ong

In this paper, we propose a novel Convolutional Neural Network (CNN) architecture for learning multi-scale feature representations with good tradeoffs between speed and accuracy. This is achieved by using a multi-branch network, which has…

计算机视觉与模式识别 · 计算机科学 2019-08-01 Chun-Fu Chen , Quanfu Fan , Neil Mallinar , Tom Sercu , Rogerio Feris

Facial micro-expressions are subtle and involuntary expressions that can reveal concealed emotions. Micro-expressions are an invaluable source of information in application domains such as lie detection, mental health, sentiment analysis…

计算机视觉与模式识别 · 计算机科学 2019-03-27 Michiel Verburg , Vlado Menkovski

Event cameras are novel bio-inspired sensors that capture motion dynamics with much higher temporal resolution than traditional cameras, since pixels react asynchronously to brightness changes. They are therefore better suited for tasks…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Youssef Farah , Federico Paredes-Vallés , Guido De Croon , Muhammad Ahmed Humais , Hussain Sajwani , Yahya Zweiri

The automatic recognition of micro-expression has been boosted ever since the successful introduction of deep learning approaches. As researchers working on such topics are moving to learn from the nature of micro-expression, the practice…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Min Peng , Chongyang Wang , Tao Bi , Tong Chen , XiangDong Zhou , Yu shi

Although deep CNNs have brought significant improvement to image saliency detection, most CNN based models are sensitive to distortion such as compression and noise. In this paper, we propose an end-to-end generic salient object…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Delu Zeng , Yixuan He , Li Liu , Zhihong Chen , Jiabin Huang , Jie Chen , John Paisley

Most of convolutional neural networks share the same characteristic: each convolutional layer is followed by a nonlinear activation layer where Rectified Linear Unit (ReLU) is the most widely used. In this paper, we argue that the designed…

计算机视觉与模式识别 · 计算机科学 2018-09-03 Gangming Zhao , Zhaoxiang Zhang , He Guan , Peng Tang , Jingdong Wang

Convolutional Neural Networks (CNNs) model long-range dependencies by deeply stacking convolution operations with small window sizes, which makes the optimizations difficult. This paper presents region-based non-local (RNL) operations as a…

计算机视觉与模式识别 · 计算机科学 2021-02-03 Guoxi Huang , Adrian G. Bors

Recognizing the expressions of partially occluded faces is a challenging computer vision problem. Previous expression recognition methods, either overlooked this issue or resolved it using extreme assumptions. Motivated by the fact that the…

计算机视觉与模式识别 · 计算机科学 2020-05-14 Hui Ding , Peng Zhou , Rama Chellappa

A general procedure for introducing parametric, learned, nonlinearity into activation functions is found to enhance the accuracy of representative neural networks without requiring significant additional computational resources. Examples…

机器学习 · 计算机科学 2025-05-14 David Yevick

The choice of activation functions is crucial for modern deep neural networks. Popular hand-designed activation functions like Rectified Linear Unit(ReLU) and its variants show promising performance in various tasks and models. Swish, the…

计算机视觉与模式识别 · 计算机科学 2021-04-09 Yucong Zhou , Zezhou Zhu , Zhao Zhong

Semantic segmentation in complex scenes relies not only on object appearance but also on object location and the surrounding environment. Nonetheless, it is difficult to model long-range context in the format of pairwise point correlations…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Xin Kang , Chaoqun Wang , Xuejin Chen

In recent years novel activation functions have been proposed to improve the performance of neural networks, and they show superior performance compared to the ReLU counterpart. However, there are environments, where the availability of…

计算机视觉与模式识别 · 计算机科学 2022-07-29 Ákos Utasi

With the growing demand for real-time video enhancement in live applications, existing methods often struggle to balance speed and effective exposure control, particularly under uneven lighting. We introduce RRNet (Rendering Relighting…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Wenlong Yang , Canran Jin , Weihang Yuan , Chao Wang , Lifeng Sun

Visual attention has been extensively studied for learning fine-grained features in both facial expression recognition (FER) and Action Unit (AU) detection. A broad range of previous research has explored how to use attention modules to…

计算机视觉与模式识别 · 计算机科学 2022-03-24 Xiaotian Li , Zhihua Li , Huiyuan Yang , Geran Zhao , Lijun Yin