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Ultrasound imaging serves as an effective and non-invasive diagnostic tool commonly employed in clinical examinations. However, the presence of speckle noise in ultrasound images invariably degrades image quality, impeding the performance…

计算机视觉与模式识别 · 计算机科学 2023-10-06 Zhenyu Bu , Kai-Ni Wang , Fuxing Zhao , Shengxiao Li , Guang-Quan Zhou

Scene text image super-resolution aims to increase the resolution and readability of the text in low-resolution images. Though significant improvement has been achieved by deep convolutional neural networks (CNNs), it remains difficult to…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Jianqi Ma , Zhetong Liang , Lei Zhang

We introduce a new adaptive decomposition tool, which we refer to as Nonlinear Mode Decomposition (NMD). It decomposes a given signal into a set of physically meaningful oscillations for any waveform, simultaneously removing the noise. NMD…

数值分析 · 数学 2015-10-07 Dmytro Iatsenko , Peter V. E. McClintock , Aneta Stefanovska

Like in many other research fields, recent developments in computational imaging have focused on developing machine learning (ML) approaches to tackle its main challenges. To improve the performance of computational imaging algorithms,…

图像与视频处理 · 电气工程与系统科学 2024-08-16 Maximilian B. Kiss , Ander Biguri , Carola-Bibiane Schönlieb , K. Joost Batenburg , Felix Lucka

Reconstructing degraded images is a critical task in image processing. Although CNN and Transformer-based models are prevalent in this field, they exhibit inherent limitations, such as inadequate long-range dependency modeling and high…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Rui Deng , Tianpei Gu

We investigated the use of a U-Net convolutional neural network for denoising simulated medium-resolution spectroscopic observations of stars. Simulated spectra were generated under realistic observational conditions resembling the Subaru…

天体物理仪器与方法 · 物理学 2025-04-04 Balázs Pál , László Dobos

Salient object detection (SOD) in RGB-D images is an essential task in computer vision, enabling applications in scene understanding, robotics, and augmented reality. However, existing methods struggle to capture global dependency across…

计算机视觉与模式识别 · 计算机科学 2025-03-05 Gargi Panda , Soumitra Kundu , Saumik Bhattacharya , Aurobinda Routray

Inspired by the recent advances of image super-resolution using convolutional neural network (CNN), we propose a CNN-based block up-sampling scheme for intra frame coding. A block can be down-sampled before being compressed by normal intra…

多媒体 · 计算机科学 2017-08-08 Yue Li , Dong Liu , Houqiang Li , Li Li , Feng Wu , Hong Zhang , Haitao Yang

Diffusion models achieve remarkable quality in image generation, but at a cost. Iterative denoising requires many time steps to produce high fidelity images. We argue that the denoising process is crucially limited by an accumulation of the…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Hui Lu , Albert ali Salah , Ronald Poppe

When capturing and storing images, devices inevitably introduce noise. Reducing this noise is a critical task called image denoising. Deep learning has become the de facto method for image denoising, especially with the emergence of…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Haoyu Chen , Jinjin Gu , Yihao Liu , Salma Abdel Magid , Chao Dong , Qiong Wang , Hanspeter Pfister , Lei Zhu

Convolutional neural networks (CNNs) have shown outstanding performance on image denoising with the help of large-scale datasets. Earlier methods naively trained a single CNN with many pairs of clean-noisy images. However, the conditional…

图像与视频处理 · 电气工程与系统科学 2021-04-05 Jae Woong Soh , Nam Ik Cho

Accurately determining cell type composition in disease-relevant tissues is crucial for identifying disease targets. Most existing spatial transcriptomics (ST) technologies cannot achieve single-cell resolution, making it challenging to…

机器学习 · 计算机科学 2024-08-12 Lin Huang , Xiaofei Liu , Shunfang Wang , Wenwen Min

U-Net and its variants have been widely used in medical image segmentation. However, most current U-Net variants confine their improvement strategies to building more complex encoder, while leaving the decoder unchanged or adopting a simple…

图像与视频处理 · 电气工程与系统科学 2023-10-30 Weibin Yang , Longwei Xu , Pengwei Wang , Dehua Geng , Yusong Li , Mingyuan Xu , Zhiqi Dong

In recent years, learned image compression methods have demonstrated superior rate-distortion performance compared to traditional image compression methods. Recent methods utilize convolutional neural networks (CNN), variational…

计算机视觉与模式识别 · 计算机科学 2025-02-14 Priyanka Mudgal , Feng Liu

With the widespread application of convolutional neural networks (CNNs), the traditional model based denoising algorithms are now outperformed. However, CNNs face two problems. First, they are computationally demanding, which makes their…

图像与视频处理 · 电气工程与系统科学 2024-03-07 Yu Guo , Axel Davy , Gabriele Facciolo , Jean-Michel Morel , Qiyu Jin

Image restoration endeavors to reconstruct a high-quality, detail-rich image from a degraded counterpart, which is a pivotal process in photography and various computer vision systems. In real-world scenarios, different types of degradation…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Yuhong He , Long Peng , Qiaosi Yi , Chen Wu , Lu Wang

Traffic prediction is a critical component of intelligent transportation systems, enabling applications such as congestion mitigation and accident risk prediction. While recent research has explored both graph-based and grid-based…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Hyeonseok Jin , Geonmin Kim , Kyungbaek Kim

Diffusion models have garnered considerable interest in computer vision, owing both to their capacity to synthesize photorealistic images and to their proven effectiveness in image reconstruction tasks. However, existing approaches fail to…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Jonas Dornbusch , Emanuel Pfarr , Florin-Alexandru Vasluianu , Frank Werner , Radu Timofte

While current multi-frame restoration methods combine information from multiple input images using 2D alignment techniques, recent advances in novel view synthesis are paving the way for a new paradigm relying on volumetric scene…

计算机视觉与模式识别 · 计算机科学 2023-04-06 Thomas Tanay , Aleš Leonardis , Matteo Maggioni

Image deblurring, a.k.a. image deconvolution, recovers a clear image from pixel superposition caused by blur degradation. Few deep convolutional neural networks (CNN) succeed in addressing this task. In this paper, we first demonstrate that…

计算机视觉与模式识别 · 计算机科学 2018-11-06 Li Si-Yao , Dongwei Ren , Furong Zhao , Zijian Hu , Junfeng Li , Qian Yin
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