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In this work we test the ability of deep learning methods to provide an end-to-end mapping between low and high resolution images applying it to the iris recognition problem. Here, we propose the use of two deep learning single-image…

Image and Video Processing · Electrical Eng. & Systems 2023-11-03 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez , Reuben A. Farrugia

We develop a new edge detection algorithm that tackles two important issues in this long-standing vision problem: (1) holistic image training and prediction; and (2) multi-scale and multi-level feature learning. Our proposed method,…

Computer Vision and Pattern Recognition · Computer Science 2015-10-06 Saining Xie , Zhuowen Tu

This paper presents novel methods for estimating certified radii in randomized smoothing, a technique crucial for certifying the robustness of neural networks against adversarial perturbations. Our proposed techniques significantly improve…

Machine Learning · Computer Science 2025-03-13 Zixuan Liang

Remote sensing images are frequently degraded by adverse weather conditions, particularly clouds and haze, which severely impair downstream applications. Existing restoration methods typically rely on computationally heavy architectures or…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Runci Bai , Kui Jiang , Xiang Chen , Chen Wu , Dianjie Lu , Guijuan Zhang , Zhuoran Zheng

As the field of image generation rapidly advances, traditional diffusion models and those integrated with multimodal large language models (LLMs) still encounter limitations in interpreting complex prompts and preserving image consistency…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Xinyu Zhang , Mengxue Kang , Fei Wei , Shuang Xu , Yuhe Liu , Lin Ma

The Regularized D-bar method for Electrical Impedance Tomography provides a rigorous mathematical approach for solving the full nonlinear inverse problem directly, i.e. without iterations. It is based on a low-pass filtering in the…

Numerical Analysis · Mathematics 2015-06-19 Sarah Hamilton , Juan Manuel Reyes , Samuli Siltanen , Xiaoqun Zhang

Edge detection, a basic task in the field of computer vision, is an important preprocessing operation for the recognition and understanding of a visual scene. In conventional models, the edge image generated is ambiguous, and the edge lines…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Dawei Dai , Chunjie Wang , Shuyin Xia , Yingge Liu , Guoyin Wang

The parameter selection is crucial to regularization based image restoration methods. Generally speaking, a spatially fixed parameter for regularization item in the whole image does not perform well for both edge and smooth areas. A larger…

Image and Video Processing · Electrical Eng. & Systems 2021-04-07 Tingting Zhang , Jie Chen , Caiying Wu , Zhifei He , Tieyong Zeng , Qiyu Jin

The fractional Hilbert transform was introduced by Zayed [30, Zayed, 1998] and has been widely used in signal processing. In view of is connection with the fractional Fourier transform, Chen, the first, second and fourth authors of this…

Functional Analysis · Mathematics 2022-05-31 Zunwei Fu , Loukas Grafakos , Yan Lin , Yue Wu , Shuhui Yang

In this paper, a color edge detection method is proposed where the multi-scale Gabor filter are used to obtain edges from input color images. The main advantage of the proposed method is that high edge detection accuracy is attained while…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Yunhong Li , Yuandong Bi , Weichuan Zhang , Jie Ren , Jinni Chen

Image manipulation detection is different from traditional semantic object detection because it pays more attention to tampering artifacts than to image content, which suggests that richer features need to be learned. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2018-05-15 Peng Zhou , Xintong Han , Vlad I. Morariu , Larry S. Davis

Recent rapid advancement of generative models has significantly improved the fidelity and accessibility of AI-generated synthetic images. While enabling various innovative applications, the unprecedented realism of these synthetics makes…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Yawen Yang , Feng Li , Shuqi Kong , Yunfeng Diao , Xinjian Gao , Zenglin Shi , Meng Wang

Edges are a basic and fundamental feature in image processing, that are used directly or indirectly in huge amount of applications. Inspired by the expansion of image resolution and processing power dilated convolution techniques appeared.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-17 Ciprian Orhei , Victor Bogdan , Cosmin Bonchis

Lensless imagers based on diffusers or encoding masks enable high-dimensional imaging from a single shot measurement and have been applied in various applications. However, to further extract image information such as edge detection,…

Image and Video Processing · Electrical Eng. & Systems 2024-06-10 Ze Zheng , Baolei Liu , Jiaqi Song , Lei Ding , Xiaolan Zhong , David Mcgloin , Fan Wang

Fine-grained recognition involves the classification of images from subordinate macro-categories, and it is challenging due to small inter-class differences. To overcome this, most methods perform discriminative feature selection enabled by…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Edwin Arkel Rios , Min-Chun Hu , Bo-Cheng Lai

Classic image scaling (e.g. bicubic) can be seen as one convolutional layer and a single upscaling filter. Its implementation is ubiquitous in all display devices and image processing software. In the last decade deep learning systems have…

Computer Vision and Pattern Recognition · Computer Science 2021-10-18 Pablo Navarrete Michelini , Yunhua Lu , Xingqun Jiang

Augmented Lagrangian method (also called as method of multipliers) is an important and powerful optimization method for lots of smooth or nonsmooth variational problems in modern signal processing, imaging, optimal control and so on.…

Optimization and Control · Mathematics 2021-08-31 Hongpeng Sun

This paper presents Deep Networks for Improved Segmentation Edges (DeNISE), a novel data enhancement technique using edge detection and segmentation models to improve the boundary quality of segmentation masks. DeNISE utilizes the inherent…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Sander Riisøen Jyhne , Per-Arne Andersen , Morten Goodwin

The demand for efficient edge vision has spurred the interest in developing stochastic computing approaches for performing image processing tasks. Memristors with inherent stochasticity readily introduce probability into the computations…

Emerging Technologies · Computer Science 2025-05-16 Lekai Song , Pengyu Liu , Jingfang Pei , Yang Liu , Songwei Liu , Shengbo Wang , Leonard W. T. Ng , Tawfique Hasan , Kong-Pang Pun , Shuo Gao , Guohua Hu

Linear canonical transforms (LCTs) are of importance in many areas of science and engineering with many applications. Therefore a satisfactory discrete implementation is of considerable interest. Although there are methods that link the…

Signal Processing · Electrical Eng. & Systems 2019-04-04 Aykut Koç , Burak Bartan , Haldun M. Ozaktas
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