Results 11 to 20 of about 83,836 (252)

Sparsity and Incoherence in Compressive Sampling [PDF]

open access: yesInverse Problems, 2006
We consider the problem of reconstructing a sparse signal $x^0\in\R^n$ from a limited number of linear measurements. Given $m$ randomly selected samples of $U x^0$, where $U$ is an orthonormal matrix, we show that $\ell_1$ minimization recovers $x^0 ...
Baraniuk R G Davenport M DeVore R Wakin M   +11 more
core   +9 more sources

Imaging via Compressive Sampling [Introduction to compressive sampling and recovery via convex programming] [PDF]

open access: yesIEEE Signal Processing Magazine, 2008
There is an extensive body of literature on image compression, but the central concept is straightforward: we transform the image into an appropriate basis and then code only the important expansion coefficients.
Romberg, Justin
core   +2 more sources

From compressive sampling to compressive tasking: retrieving semantics in compressed domain with low bandwidth

open access: yesPhotoniX, 2022
High-throughput imaging is highly desirable in intelligent analysis of computer vision tasks. In conventional design, throughput is limited by the separation between physical image capture and digital post processing.
Zhihong Zhang   +7 more
doaj   +2 more sources

Compressive Video Sampling [PDF]

open access: yes, 2008
Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland ...
Stankovic, V., Stankovic, L., Cheng, S.
openaire   +1 more source

Compressive Sampling Using a Pushframe Camera [PDF]

open access: yesOSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), 2021
Pushframe parallellized single pixel camera imaging utilizes scanning motion to apply linear sampling masks to rapidly compressively sense a scene. We demonstrate strongly performing static binarized noiselet mask designs, tailored for pushframe hardware.
Stuart Bennett   +6 more
openaire   +4 more sources

Variable Density Compressed Image Sampling [PDF]

open access: yesIEEE Transactions on Image Processing, 2010
Compressed sensing (CS) provides an efficient way to acquire and reconstruct natural images from a limited number of linear projection measurements leading to sub-Nyquist sampling rates. A key to the success of CS is the design of the measurement ensemble.
Zhongmin, Wang, Gonzalo R, Arce
openaire   +2 more sources

Quadrature Compressive Sampling SAR Imaging [PDF]

open access: yesIGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
4 pages, 2 figures, submitted to IGARSS ...
Yang, Huizhang   +3 more
openaire   +2 more sources

High-performance Microwave Computational Imaging System Based on Information Metamaterials

open access: yesLeida xuebao, 2021
In this paper, we propose a detailed architectural design, principle of operation, and modeling analysis of a high-performance microwave computational imaging system based on information metamaterials.
Jiaqi HAN   +5 more
doaj   +1 more source

Vaguelette-Wavelet Deconvolution via Compressive Sampling

open access: yesIEEE Access, 2019
Vaguelette-wavelet deconvolution (VWD) is known as a transform-based image restoration technique that involves applying wavelet-domain denoising to an observed image, followed by the Fourier-domain blur inversion, which can prevent noise amplification in
Chihiro Tsutake, Toshiyuki Yoshida
doaj   +1 more source

Compressive Sampling of Binary Images [PDF]

open access: yes2008 Congress on Image and Signal Processing, 2008
Compressive sampling is a novel framework that exploits sparsity of a signal in a transform domain to perform sampling below the Nyquist rate. In this paper, we apply compressive sampling to reduce the sampling rate of binary images. A system is proposed whereby the image is split into non-overlapping blocks of equal size and compressive sampling is ...
Stankovic, V., Stankovic, L., Cheng, S.
openaire   +2 more sources

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