Results 31 to 40 of about 1,053,214 (335)

Guided filter-based multi-scale super-resolution reconstruction

CAAI Transactions on Intelligence Technology, 2020
The learning-based super-resolution reconstruction method inputs a low-resolution image into a network, and learns a non-linear mapping relationship between low-resolution and high-resolution through the network.
Xiaomei Feng, Jinjiang Li, Zhen Hua, Zhen Hua   +3 more
doaj   +1 more source

Variational semi-blind sparse deconvolution with orthogonal kernel bases and its application to MRFM [PDF]

, 2013
We present a variational Bayesian method of joint image reconstruction and point spread function (PSF) estimation when the PSF of the imaging device is only partially known.
Almeida, Babacan, Besag, Bishop, Chao, Chenegros, Daubechies, Degen, Dobigeon, Figueiredo, Forbes, Forbes, Ge, Gilks, Kundur, Landweber, Makni, Makni, Mittelman, Nasios, Orieux, Park, Pillonetto, Robert, Rugar, Shan, Sidles, Sidles, Sidles, Themelis, Ting, Tzikas, Vincent, Walker, Wang, Ward, Winn, Züger, Züger, Züger   +39 more
core   +5 more sources

Discrete Imaging Models for Three-Dimensional Optoacoustic Tomography using Radially Symmetric Expansion Functions [PDF]

, 2014
Optoacoustic tomography (OAT), also known as photoacoustic tomography, is an emerging computed biomedical imaging modality that exploits optical contrast and ultrasonic detection principles.
Er Oraevsky, Kun Wang, Mark A. Anastasio, Richard Su, Robert W. Schoonover, Senior Member   +5 more
core   +1 more source

A Novel Blind Restoration and Reconstruction Approach for CT Images Based on Sparse Representation and Hierarchical Bayesian-MAP

Algorithms, 2019
Computed tomography (CT) image reconstruction and restoration are very important in medical image processing, and are associated together to be an inverse problem.
Yunshan Sun, Liyi Zhang, Yanqin Li, Juan Meng   +3 more
doaj   +1 more source

Overview of Underwater 3D Reconstruction Technology Based on Optical Images

Journal of Marine Science and Engineering, 2023
At present, 3D reconstruction technology is being gradually applied to underwater scenes and has become a hot research direction that is vital to human ocean exploration and development.
Kai Hu, Tianyan Wang, Chaowen Shen, Chenghang Weng, Fenghua Zhou, Min Xia, Liguo Weng   +6 more
doaj   +1 more source

Visualization of simulated small vessels on computed tomography using a model-based iterative reconstruction technique

Data in Brief, 2017
This article describes a quantitative evaluation of visualizing small vessels using several image reconstruction methods in computed tomography. Simulated vessels with diameters of 1–6 mm made by 3D printer was scanned using 320-row detector computed ...
Toru Higaki, Fuminari Tatsugami, Chikako Fujioka, Hiroaki Sakane, Yuko Nakamura, Yasutaka Baba, Makoto Iida, Kazuo Awai   +7 more
doaj   +1 more source

Virtual Reconstruction Method of Regional 3D Image Based on Visual Transmission Effect

Complexity, 2021
In order to solve the problems of poor user experience and low human-computer interaction efficiency, this paper designs a 3D image virtual reconstruction system based on visual communication effects.
Jing Yin, Jong Hoon Yang
doaj   +1 more source

Serial Decoders-Based Auto-Encoders for Image Reconstruction

Applied Sciences, 2022
Auto-encoders are composed of coding and decoding units; hence, they hold an inherent potential of being used for high-performance data compression and signal-compressed sensing.
Honggui Li, Maria Trocan, Mohamad Sawan, Dimitri Galayko   +3 more
doaj   +1 more source

Self-Guided Limited-Angle Computed Tomography Reconstruction Based on Anisotropic Relative Total Variation

IEEE Access, 2020
In some computed tomography (CT) applications, limited-angle projections are used for image reconstruction, and traditional reconstruction methods, such as filtered back-projection (FBP) or simultaneous algebraic reconstruction technique (SART), cannot ...
Changcheng Gong, Li Zeng
doaj   +1 more source

Filtering in SPECT Image Reconstruction [PDF]

International Journal of Biomedical Imaging, 2011
Single photon emission computed tomography (SPECT) imaging is widely implemented in nuclear medicine as its clinical role in the diagnosis and management of several diseases is, many times, very helpful (e.g., myocardium perfusion imaging). The quality of SPECT images are degraded by several factors such as noise because of the limited number of counts,
Maria Lyra, Agapi Ploussi
openaire   +4 more sources