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Image compression is a method to remove spatial redundancy between adjacent pixels and reconstruct a high-quality image. In the past few years, deep learning has gained huge attention from the research community and produced promising image…

图像与视频处理 · 电气工程与系统科学 2021-09-07 Khawar Islam , L. Minh Dang , Sujin Lee , Hyeonjoon Moon

Simultaneous multislice (SMS) imaging is a one of the acceleration technique of magnetic resonance imaging. SMS requires accurate sensitivity distributions in the slice plane for each receiving coil. This requirement is difficult to satisfy…

医学物理 · 物理学 2024-03-04 Satoshi Ito , Yuki Sato , Naoya Endo , Shohei Ouchi

Hyperspectral (HS) images contain detailed spectral information that has proven crucial in applications like remote sensing, surveillance, and astronomy. However, because of hardware limitations of HS cameras, the captured images have low…

图像与视频处理 · 电气工程与系统科学 2021-06-15 Marija Vella , Bowen Zhang , Wei Chen , João F. C. Mota

Mid-wave infrared (MWIR) cameras for large number pixels are extremely expensive compared with their counterparts in visible light, thus, super-resolution imaging (SRI) for MWIR by increasing imaging pixels has always been a research…

图像与视频处理 · 电气工程与系统科学 2025-03-19 Xiao-Peng Jin , Qing Zhao , Xue-Feng Liu , An-Dong Xiong

Noisy images are a challenge to image compression algorithms due to the inherent difficulty of compressing noise. As noise cannot easily be discerned from image details, such as high-frequency signals, its presence leads to extra bits…

图像与视频处理 · 电气工程与系统科学 2024-02-09 Yuxin Xie , Li Yu , Farhad Pakdaman , Moncef Gabbouj

We report a method for super-resolution of range images. Our approach leverages the interpretation of LR image as sparse samples on the HR grid. Based on this interpretation, we demonstrate that our recently reported approach, which…

计算机视觉与模式识别 · 计算机科学 2012-10-30 Arnav Bhavsar

Scanning electron microscopy (SEM) is indispensable in diverse applications ranging from microelectronics to food processing because it provides large depth-of-field images with a resolution beyond the optical diffraction limit. However,…

In this paper we tackle the problem of stereo image compression, and leverage the fact that the two images have overlapping fields of view to further compress the representations. Our approach leverages state-of-the-art single-image…

图像与视频处理 · 电气工程与系统科学 2019-08-13 Jerry Liu , Shenlong Wang , Raquel Urtasun

Using projection between Euclidian spaces of different dimensions, the signal compression and decompression become straightforward. This encoding/decoding technique requires no preassigned measuring matrix as in compressed sensing.…

系统与控制 · 电气工程与系统科学 2024-10-31 Daizhan Cheng

In this paper, we consider non-contiguous wideband spectrum sensing (WSS) for spectrum characterization and allocation in next generation heterogeneous networks. The proposed WSS consists of sub-Nyquist sampling and digital reconstruction…

信号处理 · 电气工程与系统科学 2018-09-18 Himani Joshi , Sumit J Darak , A Anil Kumar , Rohit Kumar

Denoising extreme low light images is a challenging task due to the high noise level. When the illumination is low, digital cameras increase the ISO (electronic gain) to amplify the brightness of captured data. However, this in turn…

图像与视频处理 · 电气工程与系统科学 2019-09-13 Hao Guan , Liu Liu , Sean Moran , Fenglong Song , Gregory Slabaugh

Encoding of spectral information onto monochrome imaging cameras is of interest for wavelength multiplexing and hyperspectral imaging applications. Here, the complex spatio-spectral response of a disordered material is used to demonstrate…

光学 · 物理学 2017-05-09 Rebecca French , Sylvain Gigan , Otto L. Muskens

Scanning acoustic microscopy (SAM) has been employed since microscopic images are widely used for biomedical or materials research. Acoustic imaging is an important and well-established method used in nondestructive testing (NDT),…

图像与视频处理 · 电气工程与系统科学 2022-08-09 Shubham Kumar Gupta , Azeem Ahmad , Prakhar Kumar , Frank Melandso , Anowarul Habib

Uncertain information is commonplace in real-world data management scenarios. The ability to represent large sets of possible instances (worlds) while supporting efficient storage and processing is an important challenge in this context.…

数据库 · 计算机科学 2008-01-09 Dan Olteanu , Christoph Koch , Lyublena Antova

Intra-operative measurements of tissue shape and multi/ hyperspectral information have the potential to provide surgical guidance and decision making support. We report an optical probe based system to combine sparse hyperspectral…

计算机视觉与模式识别 · 计算机科学 2017-06-22 Jianyu Lin , Neil T. Clancy , Yang Hu , Ji Qi , Taran Tatla , Danail Stoyanov , Lena Maier-Hein , Daniel S. Elson

High-dimensional structural MRI (sMRI) images are widely used for Alzheimer's Disease (AD) diagnosis. Most existing methods for sMRI representation learning rely on 3D architectures (e.g., 3D CNNs), slice-wise feature extraction with late…

计算机视觉与模式识别 · 计算机科学 2026-01-30 Dexuan Ding , Ciyuan Peng , Endrowednes Kuantama , Jingcai Guo , Jia Wu , Jian Yang , Amin Beheshti , Ming-Hsuan Yang , Yuankai Qi

Transformations for enhancing sparsity in the approximation of color images by 2D atomic decomposition are discussed. The sparsity is firstly considered with respect to the most significant coefficients in the wavelet decomposition of the…

图像与视频处理 · 电气工程与系统科学 2021-05-17 Laura Rebollo-Neira , Aurelien Inacio

LSST will open new vistas for cosmology in the next decade, but it cannot reach its full potential without data from other telescopes. Cosmological constraints can be greatly enhanced using wide-field ($>20$ deg$^2$ total survey area),…

Image denoising is a fundamental problem in computational photography, where achieving high perception with low distortion is highly demanding. Current methods either struggle with perceptual quality or suffer from significant distortion.…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Tong Li , Hansen Feng , Lizhi Wang , Zhiwei Xiong , Hua Huang

We propose a novel approach to denoising diffusion magnetic resonance images (dMRI) using convolutional neural networks, that exploits the benefits of data acquired at multiple b-values to offset the need for many redundant observations.…

图像与视频处理 · 电气工程与系统科学 2024-10-23 Jakub Jurek , Andrzej Materka , Kamil Ludwisiak , Agata Majos , Filip Szczepankiewicz