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Visual tracking usually requires an object appearance model that is robust to changing illumination, pose and other factors encountered in video. In this paper, we construct an appearance model using the 3D discrete cosine transform…

Computer Vision and Pattern Recognition · Computer Science 2012-07-21 Xi Li , Anthony Dick , Chunhua Shen , Anton van den Hengel , Hanzi Wang

Visual speech recognition aims to identify the sequence of phonemes from continuous speech. Unlike the traditional approach of using 2D image feature extraction methods to derive features of each video frame separately, this paper proposes…

Computer Vision and Pattern Recognition · Computer Science 2016-09-08 Toni Heidenreich , Michael W. Spratling

A versatile method is described for the practical computation of the discrete Fourier transforms (DFT) of a continuous function $g(t)$ given by its values $g_{j}$ at the points of a uniform grid $F_{N}$ generated by conjugacy classes of…

Mathematical Physics · Physics 2009-11-10 A. Atoyan , J. Patera

Discrete cosine transform (DCT) and other Fourier-related transforms have broad applications in scientific computing. However, off-the-shelf high-performance multi-dimensional DCT (MD DCT) libraries are not readily available in parallel…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-10-05 Zixuan Jiang , Jiaqi Gu , David Z. Pan

Previous methods for dynamic facial expression recognition (DFER) in the wild are mainly based on Convolutional Neural Networks (CNNs), whose local operations ignore the long-range dependencies in videos. Transformer-based methods for DFER…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Fuyan Ma , Bin Sun , Shutao Li

Person recognition aims at recognizing the same identity across time and space with complicated scenes and similar appearance. In this paper, we propose a novel method to address this task by training a network to obtain robust and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Yu Liu , Hongyang Li , Xiaogang Wang

In image retrieval, deep local features learned in a data-driven manner have been demonstrated effective to improve retrieval performance. To realize efficient retrieval on large image database, some approaches quantize deep local features…

Image and Video Processing · Electrical Eng. & Systems 2021-12-14 Hui Wu , Min Wang , Wengang Zhou , Yang Hu , Houqiang Li

In this paper, a high performance face recognition system based on local binary pattern (LBP) using the probability distribution functions (PDF) of pixels in different mutually independent color channels which are robust to frontal…

Computer Vision and Pattern Recognition · Computer Science 2015-01-06 Gholamreza Anbarjafari

Face detection has achieved great success using the region-based methods. In this report, we propose a region-based face detector applying deep networks in a fully convolutional fashion, named Face R-FCN. Based on Region-based Fully…

Computer Vision and Pattern Recognition · Computer Science 2017-09-19 Yitong Wang , Xing Ji , Zheng Zhou , Hao Wang , Zhifeng Li

Deep learning advanced face recognition to an unprecedented accuracy. However, understanding how local parts of the face affect the overall recognition performance is still mostly unclear. Among others, face swap has been experimented to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-24 Claudio Ferrari , Matteo Serpentoni , Stefano Berretti , Alberto Del Bimbo

The Discrete Cosine Transform (DCT) is widely used in lossy image and video compression schemes, e.g., JPEG and MPEG. In this paper, we show that the compression efficiency of the DCT is dependent on the edge directions within a block. In…

Multimedia · Computer Science 2014-11-18 Rui F. C. Guerreiro , Pedro M. Q. Aguiar

Detecting digital face manipulation has attracted extensive attention due to fake media's potential harms to the public. However, recent advances have been able to reduce the forgery signals to a low magnitude. Decomposition, which…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Xiangyu Zhu , Hao Wang , Hongyan Fei , Zhen Lei , Stan Z. Li

This paper presents a novel approach in a rarely studied area of computer vision: Human interaction recognition in still images. We explore whether the facial regions and their spatial configurations contribute to the recognition of…

Computer Vision and Pattern Recognition · Computer Science 2015-09-18 Gokhan Tanisik , Cemil Zalluhoglu , Nazli Ikizler-Cinbis

In this paper, we propose a novel deep convolutional network (DCN) that achieves outstanding performance on FDDB, PASCAL Face, and AFW. Specifically, our method achieves a high recall rate of 90.99% on the challenging FDDB benchmark,…

Computer Vision and Pattern Recognition · Computer Science 2015-09-23 Shuo Yang , Ping Luo , Chen Change Loy , Xiaoou Tang

There is an abundant literature on face detection due to its important role in many vision applications. Since Viola and Jones proposed the first real-time AdaBoost based face detector, Haar-like features have been adopted as the method of…

Computer Vision and Pattern Recognition · Computer Science 2010-09-30 Sakrapee Paisitkriangkrai , Chunhua Shen , Jian Zhang

Over the last several years, research on facial recognition based on Deep Neural Network has evolved with approaches like task-specific loss functions, image normalization and augmentation, network architectures, etc. However, there have…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Kyo Takano

Denoising of images is a crucial preprocessing step in medical imaging, essential for improving diagnostic clarity. While deep learning methods offer state-of-the-art performance, their computational complexity and data requirements can be…

Statistical Mechanics · Physics 2025-10-01 M. Ali Saif , Bassam M. Mughalles , Ibrahim G. H. Loqman

Ethnicity is a key demographic attribute of human beings and it plays a vital role in automatic facial recognition and have extensive real world applications such as Human Computer Interaction (HCI); demographic based classification;…

Computer Vision and Pattern Recognition · Computer Science 2017-11-01 Inzamam Anwar , Naeem Ul Islam

One of the most common problems encountered in human-computer interaction is automatic facial expression recognition. Although it is easy for human observer to recognize facial expressions, automatic recognition remains difficult for…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mohamad Roshanzamir , Roohallah Alizadehsani , Mahdi Roshanzamir , Afshin Shoeibi , Juan M. Gorriz , Abbas Khosrave , Saeid Nahavandi

Recently, deep convolution neural networks (CNNs) steered face super-resolution methods have achieved great progress in restoring degraded facial details by jointly training with facial priors. However, these methods have some obvious…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Guangwei Gao , Zixiang Xu , Juncheng Li , Jian Yang , Tieyong Zeng , Guo-Jun Qi