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In this paper, we propose a novel unsupervised domain adaptation algorithm based on deep learning for visual object recognition. Specifically, we design a new model called Deep Reconstruction-Classification Network (DRCN), which jointly…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Muhammad Ghifary , W. Bastiaan Kleijn , Mengjie Zhang , David Balduzzi , Wen Li

Recently, convolutional neural networks have shown promising performance for single-image super-resolution. In this paper, we propose Deep Artifact-Free Residual (DAFR) network which uses the merits of both residual learning and usage of…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Hamdollah Nasrollahi , Kamran Farajzadeh , Vahid Hosseini , Esmaeil Zarezadeh , Milad Abdollahzadeh

While the performance of face recognition systems has improved significantly in the last decade, they are proved to be highly vulnerable to presentation attacks (spoofing). Most of the research in the field of face presentation attack…

Computer Vision and Pattern Recognition · Computer Science 2019-07-10 Olegs Nikisins , Anjith George , Sebastien Marcel

Image downscaling is critical for efficient storage and transmission of high-resolution (HR) images. Existing learning-based methods focus on performing downscaling within the sRGB domain, which typically suffers from blurred details and…

Image and Video Processing · Electrical Eng. & Systems 2025-08-01 Yang Ren , Hai Jiang , Wei Li , Menglong Yang , Heng Zhang , Zehua Sheng , Qingsheng Ye , Shuaicheng Liu

Convolutional neural networks (CNN) have made great progress for synthetic aperture radar (SAR) images change detection. However, sampling locations of traditional convolutional kernels are fixed and cannot be changed according to the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Junjie Wang , Feng Gao , Junyu Dong

Random Forest (RF) is a successful paradigm for learning classifiers due to its ability to learn from large feature spaces and seamlessly integrate multi-class classification, as well as the achieved accuracy and processing efficiency.…

Computer Vision and Pattern Recognition · Computer Science 2016-11-10 Azadeh S. Mozafari , David Vazquez , Mansour Jamzad , Antonio M. Lopez

Typical person re-identification (re-ID) methods train a deep CNN to extract deep features and combine them with a distance metric for the final evaluation. In this work, we focus on exploiting the full information encoded in the deep…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Yong Liu , Lin Shang , Andy Song

Radar is usually more robust than the camera in severe driving scenarios, e.g., weak/strong lighting and bad weather. However, unlike RGB images captured by a camera, the semantic information from the radar signals is noticeably difficult…

Computer Vision and Pattern Recognition · Computer Science 2021-02-11 Yizhou Wang , Zhongyu Jiang , Xiangyu Gao , Jenq-Neng Hwang , Guanbin Xing , Hui Liu

Radio frequency (RF)-based indoor localization offers significant promise for applications such as indoor navigation, augmented reality, and pervasive computing. While deep learning has greatly enhanced localization accuracy and robustness,…

Information Theory · Computer Science 2025-12-09 Guosheng Wang , Shen Wang , Lei Yang

Training (source) domain bias affects state-of-the-art object detectors, such as Faster R-CNN, when applied to new (target) domains. To alleviate this problem, researchers proposed various domain adaptation methods to improve object…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Petru Soviany , Radu Tudor Ionescu , Paolo Rota , Nicu Sebe

Autoencoders are techniques for data representation learning based on artificial neural networks. Differently to other feature learning methods which may be focused on finding specific transformations of the feature space, they can be…

Machine Learning · Computer Science 2020-05-12 David Charte , Francisco Charte , María J. del Jesus , Francisco Herrera

As a cost-effective and robust technology, automotive radar has seen steady improvement during the last years, making it an appealing complement to commonly used sensors like camera and LiDAR in autonomous driving. Radio frequency data with…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Yuzhi Wu , Jun Liu , Guangfeng Jiang , Weijian Liu , Danilo Orlando

This paper introduces a method based on a deep neural network (DNN) that is perfectly capable of processing radar data from extremely thinned radar apertures. The proposed DNN processing can provide both aliasing-free radar imaging and…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Christian Schuessler , Marcel Hoffmann , Martin Vossiek

The goal of Deep Domain Adaptation is to make it possible to use Deep Nets trained in one domain where there is enough annotated training data in another where there is little or none. Most current approaches have focused on learning…

Computer Vision and Pattern Recognition · Computer Science 2017-11-22 Artem Rozantsev , Mathieu Salzmann , Pascal Fua

Object detection utilizing Frequency Modulated Continous Wave radar is becoming increasingly popular in the field of autonomous systems. Radar does not possess the same drawbacks seen by other emission-based sensors such as LiDAR, primarily…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 James Giroux , Martin Bouchard , Robert Laganiere

Image translation with convolutional autoencoders has recently been used as an approach to multimodal change detection in bitemporal satellite images. A main challenge is the alignment of the code spaces by reducing the contribution of…

Computer Vision and Pattern Recognition · Computer Science 2020-04-16 Luigi T. Luppino , Mads A. Hansen , Michael Kampffmeyer , Filippo M. Bianchi , Gabriele Moser , Robert Jenssen , Stian N. Anfinsen

This paper considers object detection and 3D estimation using an FMCW radar. The state-of-the-art deep learning framework is employed instead of using traditional signal processing. In preparing the radar training data, the ground truth of…

Computer Vision and Pattern Recognition · Computer Science 2019-02-15 Guoqiang Zhang , Haopeng Li , Fabian Wenger

Object detection is one of the key target tasks of interest in the context of civil and military applications. In particular, the real-world deployment of target detection methods is pivotal in the decision-making process during military…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Jongoh Jeong , Youngjin Oh , Gyeongrae Nam , Jeongeun Lee , Kuk-Jin Yoon

Anomaly detection in industrial visual inspection is challenging due to the scarcity of defective samples. Most existing methods rely on unsupervised reconstruction using only normal data, often resulting in overfitting and poor detection…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Amirhossein Khadivi Noghredeh , Abdollah Safari , Fatemeh Ziaeetabar , Firoozeh Haghighi

In this study, we focus on the training process and inference improvements of deep neural networks (DNNs), specifically Autoencoders (AEs) and Variational Autoencoders (VAEs), using Random Fourier Transformation (RFT). We further explore…

Machine Learning · Computer Science 2026-02-26 Ata Akbari Asanjan , Milad Memarzadeh , Bryan Matthews , Nikunj Oza