Results 21 to 30 of about 4,405,442 (293)
Remote Sensing, 2021 As an emerging orbital system with flexibility and brand application prospects, the highly elliptical orbit synthetic aperture radar (HEO SAR) can achieve both a low orbit detailed survey and continuous earth surface observation in high orbit, which ...
Xinchang Hu +3 more
doaj +1 more source
Depth mapping of integral images through viewpoint image extraction with a hybrid disparity analysis algorithm [PDF]
, 2008 Integral imaging is a technique capable of displaying 3–D images with continuous parallax in full natural color. It is one of the most promising methods for producing smooth 3–D images.
McCormick, M, Kung, SY, Wu, C, Aggoun, A
core +1 more source
Validation of OSEM algorithm for attenuation correction in cardiac SPECT studies [PDF]
, 2005 Photon attenuation is believed to be one of the major causes of artefacts in cardiac SPECT studies and therefore should be corrected to improve the specificity of cardiac SPECT imaging for the detection of coronary artery disease.
Alenezi, Ahmed M
core +6 more sources
A Segmentation Algorithm for Noisy Images [PDF]
, 2005 This paper presents a segmentation algorithm for gray-level images and addresses issues related to its performance on noisy images. It formulates an image segmentation problem as a partition of a weighted image neighborhood hypergraph. To overcome the computational difficulty of directly solving this problem, a multilevel hypergraph partitioning has ...
Rital, Soufiane +2 more
openaire +3 more sources
End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization
Remote Sensing, 2021 Synthetic aperture radar (SAR) imaging has developed rapidly in recent years. Although the traditional sparse optimization imaging algorithm has achieved effective results, its shortcomings are slow imaging speed, large number of parameters, and high ...
Siyuan Zhao +4 more
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A fast Bayesian reconstruction algorithm for emission tomography with entropy prior converging to feasible images [PDF]
, 1990 The development and tests of an iterative reconstruction algorithm for emission tomography based on Bayesian statistical concepts are described. The algorithm uses the entropy of the generated image as a prior distribution, can be accelerated by the ...
Núñez de Murga, Jorge, 1955- +1 more
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A Novel Sub-Bottom Profiler and Signal Processor
Sensors, 2019 In this paper, we introduce a novel sub-bottom profiler, making good use of the Mills cross configuration of multibeam sonar and synthetic aperture techniques of the synthetic aperture sonar system.
Cheng Tan +3 more
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The Journal of Engineering, 2019 The wide swath synthetic aperture radar (SAR) imaging with a fine resolution is fundamentally a contradiction in conventional SAR imaging. To meet the demand of high-resolution width swath (HRWS) imaging, multi-channel scan mode has received a great deal
Feng Xiao, Zegang Ding, Meng Ke
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FDBP-InSAR: An Efficient Algorithm for InSAR Imaging via Frequency Domain Back Projection
Remote Sensing, 2020 High-quality focusing with accurate phase-preserving is a significant and challenging step in interferometric synthetic aperture radar (InSAR) imaging.
Shunjun Wei +5 more
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A COLORING ALGORITHM FOR IMAGE CLASSIFICATION [PDF]
Applied Computational Intelligence, 2004 In this paper we present a pixel coloring algorithm, to be considered as a tool in fuzzy classification. Such an algorithm is based upon a sequential application of a divisive binary procedure on a fuzzy graph associated to the image to be classified, taking into account surrounding pixels.
Gómez González, Daniel +3 more
openaire +2 more sources