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Contrary to optical images, Synthetic Aperture Radar (SAR) images are in different electromagnetic spectrum where the human visual system is not accustomed to. Thus, with more and more SAR applications, the demand for enhanced high-quality…

图像与视频处理 · 电气工程与系统科学 2018-07-23 Dongyang Ao , Corneliu Octavian Dumitru , Gottfried Schwarz , Mihai Datcu

This study explores the application of self-supervised learning (SSL) for improved target recognition in synthetic aperture sonar (SAS) imagery. The unique challenges of underwater environments make traditional computer vision techniques,…

计算机视觉与模式识别 · 计算机科学 2023-07-31 BW Sheffield

The accuracy of facial expression recognition is typically affected by the following factors: high similarities across different expressions, disturbing factors, and micro-facial movement of rapid and subtle changes. One potentially viable…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Zhenqian Wu , Xiaoyuan Li , Yazhou Ren , Xiaorong Pu , Xiaofeng Zhu , Lifang He

Array synthetic aperture radar (SAR) three-dimensional (3D) imaging can obtain 3D information of the target region, which is widely used in environmental monitoring and scattering information measurement. In recent years, with the…

图像与视频处理 · 电气工程与系统科学 2024-06-04 Yangyang Wang , Xu Zhan , Jing Gao , Jinjie Yao , Shunjun Wei , JianSheng Bai

In this paper, we present the optical image simulation from a synthetic aperture radar (SAR) data using deep learning based methods. Two models, i.e., optical image simulation directly from the SAR data and from multi-temporal SARoptical…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Wei He , Naoto Yokoya

Most image super-resolution (SR) methods are developed on synthetic low-resolution (LR) and high-resolution (HR) image pairs that are constructed by a predetermined operation, e.g., bicubic downsampling. As existing methods typically learn…

图像与视频处理 · 电气工程与系统科学 2021-09-09 Sanghyun Son , Jaeha Kim , Wei-Sheng Lai , Ming-Husan Yang , Kyoung Mu Lee

Inverse rendering is the problem of decomposing an image into its intrinsic components, i.e. albedo, normal and lighting. To solve this ill-posed problem from single image, state-of-the-art methods in shape from shading mostly resort to…

计算机视觉与模式识别 · 计算机科学 2021-06-30 Mona Zehni , Shaona Ghosh , Krishna Sridhar , Sethu Raman

Synthetic aperture radar (SAR) imagery exhibits intrinsic information sparsity due to its unique electromagnetic scattering mechanism. Despite the widespread adoption of deep neural network (DNN)-based SAR automatic target recognition…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Yiming Zhang , Weibo Qin , Yuntian Liu , Feng Wang

Deep learning has demonstrated its power in image rectification by leveraging the representation capacity of deep neural networks via supervised training based on a large-scale synthetic dataset. However, the model may overfit the synthetic…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Jinlong Fan , Jing Zhang , Dacheng Tao

Sign language recognition (SLR) is a machine learning task aiming to identify signs in videos. Due to the scarcity of annotated data, unsupervised methods like contrastive learning have become promising in this field. They learn meaningful…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay

Generative Adversarial Networks (GANs) can synthesize realistic images, with the learned latent space shown to encode rich semantic information with various interpretable directions. However, due to the unstructured nature of the learned…

计算机视觉与模式识别 · 计算机科学 2023-10-11 Zikun Chen , Han Zhao , Parham Aarabi , Ruowei Jiang

Deep learning approaches show unprecedented results for speckle reduction in SAR amplitude images. The wide availability of multi-temporal stacks of SAR images can improve even further the quality of denoising. In this paper, we propose a…

图像与视频处理 · 电气工程与系统科学 2021-10-28 Emanuele Dalsasso , Inès Meraoumia , Loïc Denis , Florence Tupin

Medical imaging plays a critical role in various clinical applications. However, due to multiple considerations such as cost and risk, the acquisition of certain image modalities could be limited. To address this issue, many cross-modality…

图像与视频处理 · 电气工程与系统科学 2019-07-09 Dong Nie , Lei Xiang , Qian Wang , Dinggang Shen

Remote sensing images (RSIs) in real scenes may be disturbed by multiple factors such as optical blur, undersampling, and additional noise, resulting in complex and diverse degradation models. At present, the mainstream SR algorithms only…

图像与视频处理 · 电气工程与系统科学 2022-10-17 Hanlin Wu , Ning Ni , Shan Wang , Libao Zhang

The existing Zero-Shot learning (ZSL) methods may suffer from the vague class attributes that are highly overlapped for different classes. Unlike these methods that ignore the discrimination among classes, in this paper, we propose to…

计算机视觉与模式识别 · 计算机科学 2019-04-22 Zihan Ye , Fan Lyu , Linyan Li , Qiming Fu , Jinchang Ren , Fuyuan Hu

Synthetic aperture radar (SAR) images are widely used in target recognition tasks nowadays. In this letter, we propose an automatic approach for radar shadow detection and extraction from SAR images utilizing geometric projections along…

计算机视觉与模式识别 · 计算机科学 2014-12-16 V. B. S. Prasath , O. Haddad

Recent studies in deepfake detection have yielded promising results when the training and testing face forgeries are from the same dataset. However, the problem remains challenging when one tries to generalize the detector to forgeries…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Liang Chen , Yong Zhang , Yibing Song , Lingqiao Liu , Jue Wang

Spectral images captured by satellites and radio-telescopes are analyzed to obtain information about geological compositions distributions, distant asters as well as undersea terrain. Spectral images usually contain tens to hundreds of…

计算机视觉与模式识别 · 计算机科学 2018-02-08 Siyu Chen , Danping Liao , Yuntao Qian

Synthetic aperture radar (SAR) is a tomographic sensor that measures 2D slices of the 3D spatial Fourier transform of the scene. In many operational scenarios, the measured set of 2D slices does not fill the 3D space in the Fourier domain,…

信号处理 · 电气工程与系统科学 2026-02-20 Nithin Sugavanam , Emre Ertin

Recent research showed that the dual-pixel sensor has made great progress in defocus map estimation and image defocus deblurring. However, extracting real-time dual-pixel views is troublesome and complex in algorithm deployment. Moreover,…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Jucai Zhai , Pengcheng Zeng , Chihao Ma , Yong Zhao , Jie Chen