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Image denoising algorithms have been extensively investigated for medical imaging. To perform image denoising, penalized least-squares (PLS) problems can be designed and solved, in which the penalty term encodes prior knowledge of the…

图像与视频处理 · 电气工程与系统科学 2025-02-03 Wentao Chen , Tianming Xu , Weimin Zhou

Rapid advancements in deep learning over the past decade have fueled an insatiable demand for efficient and scalable hardware. Photonics offers a promising solution by leveraging the unique properties of light. However, conventional neural…

This work presents a novel approach for robust PCA with total variation regularization for foreground-background separation and denoising on noisy, moving camera video. Our proposed algorithm registers the raw (possibly corrupted) frames of…

机器学习 · 统计学 2017-09-28 Chen Gao , Brian E. Moore , Raj Rao Nadakuditi

We quantify the generalization of a convolutional neural network (CNN) trained to identify cars. First, we perform a series of experiments to train the network using one image dataset - either synthetic or from a camera - and then test on a…

计算机视觉与模式识别 · 计算机科学 2019-12-10 Zhenyi Liu , Trisha Lian , Joyce Farrell , Brian Wandell

We propose a data-dependent denoising procedure to restore noisy images. Different from existing denoising algorithms which search for patches from either the noisy image or a generic database, the new algorithm finds patches from a…

计算机视觉与模式识别 · 计算机科学 2015-06-22 Enming Luo , Stanley H. Chan , Truong Q. Nguyen

Convolutional Neural Networks (CNNs) are well established models capable of achieving state-of-the-art classification accuracy for various computer vision tasks. However, they are becoming increasingly larger, using millions of parameters,…

计算机视觉与模式识别 · 计算机科学 2017-07-27 Nikolaos Passalis , Anastasios Tefas

As a hybrid imaging technology, photoacoustic microscopy (PAM) imaging suffers from noise due to the maximum permissible exposure of laser intensity, attenuation of ultrasound in the tissue, and the inherent noise of the transducer.…

图像与视频处理 · 电气工程与系统科学 2022-01-13 Da He , Jiasheng Zhou , Xiaoyu Shang , Jiajia Luo , Sung-Liang Chen

POLSAR image has an advantage over optical image because it can be acquired independently of cloud cover and solar illumination. PolSAR image classification is a hot and valuable topic for the interpretation of POLSAR image. In this paper,…

计算机视觉与模式识别 · 计算机科学 2019-06-19 Xu Liu , Licheng Jiao , Dan Zhang , Fang Liu

The difficulty of obtaining paired data remains a major bottleneck for learning image restoration and enhancement models for real-world applications. Current strategies aim to synthesize realistic training data by modeling noise and…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Valentin Wolf , Andreas Lugmayr , Martin Danelljan , Luc Van Gool , Radu Timofte

The issue of image haze removal has attracted wide attention in recent years. However, most existing haze removal methods cannot restore the scene with clear blue sky, since the color and texture information of the object in the original…

计算机视觉与模式识别 · 计算机科学 2022-10-17 Xiaoyan Zhang , Gaoyang Tang , Yingying Zhu , Qi Tian

Recently, deep learning methods such as the convolutional neural networks have gained prominence in the area of image denoising. This is owing to their proven ability to surpass state-of-the-art classical image denoising algorithms such as…

图像与视频处理 · 电气工程与系统科学 2024-09-02 Basit O. Alawode , Mudassir Masood

Given a grayscale photograph as input, this paper attacks the problem of hallucinating a plausible color version of the photograph. This problem is clearly underconstrained, so previous approaches have either relied on significant user…

计算机视觉与模式识别 · 计算机科学 2016-10-06 Richard Zhang , Phillip Isola , Alexei A. Efros

Existing approaches towards single image dehazing including both model-based and learning-based heavily rely on the estimation of so-called transmission maps. Despite its conceptual simplicity, using transmission maps as an intermediate…

计算机视觉与模式识别 · 计算机科学 2018-05-04 Yixin Du , Xin Li

Deep Learning based methods have emerged as the indisputable leaders for virtually all image restoration tasks. Especially in the domain of microscopy images, various content-aware image restoration (CARE) approaches are now used to improve…

计算机视觉与模式识别 · 计算机科学 2021-03-02 Mangal Prakash , Alexander Krull , Florian Jug

The polarization decomposition of arbitrary binary-input memoryless channels (BMCs) is studied in this work. By introducing the polarization factor (PF), defined in terms of the conditional entropy of the channel output under various input…

信息论 · 计算机科学 2025-05-06 Tianfu Qi , Jun Wang

Sparse principal component analysis (PCA) is a well-established dimensionality reduction technique that is often used for unsupervised feature selection (UFS). However, determining the regularization parameters is rather challenging, and…

机器学习 · 计算机科学 2025-04-07 Long Chen , Xianchao Xiu

In many modern computer application problems, the classification of image data plays an important role. Among many different supervised machine learning models, convolutional neural networks (CNNs) and linear discriminant analysis (LDA) as…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Axel Klawonn , Martin Lanser , Janine Weber

In digital imaging, image demosaicing is a crucial first step which recovers the RGB information from a color filter array (CFA). Oftentimes, deep learning is utilized to perform image demosaicing. Given that most modern digital imaging…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Cory Fan , Wenchao Zhang

Reconstructing an object's geometry and appearance from multiple images, also known as inverse rendering, is a fundamental problem in computer graphics and vision. Inverse rendering is inherently ill-posed because the captured image is an…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Akshat Dave , Yongyi Zhao , Ashok Veeraraghavan

We show that, with polarization cues, a lightweight model trained on a small dataset can outperform RGB-only vision foundation models (VFMs) in single-shot object-level surface normal estimation. Shape from polarization (SfP) has long been…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Chenhao Li , Taishi Ono , Takeshi Uemori , Yusuke Moriuchi