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Plenoptic Camera Calibration Based on Sub-Aperture Images
2019 IEEE International Conference on Image Processing (ICIP), 2019Accurate and robust calibration methods for plenoptic cameras are necessary due to their increasing popularity as depth estimation devices. Existing calibration methods can be placed in two categories: microlens based and sub-aperture image based. The low pixel-count in the microlenses is a limitation for microlens-based methods.
Adrian Munteanu, Walid Darwish
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A Method for Extracting Dem Based on Sub-Aperture Image Correlation in CSAR Mode
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021Since the circular track synthetic aperture radar (CSAR) could observe the target scene in all directions, it can perform three-dimensional imaging of the target area. When using the sub-aperture sequence to extract the digital elevation model (DEM) of the target scene, in order to be able to reasonably use the correlation between the sub-apertures in ...
Daoxiang An, Leping Chen, Yishi Li
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Change Detection in Sequences of SAR Sub-Aperture Images
Earth Resources and Environmental Remote Sensing/GIS Applications IX, 2018In the last few years, image acquisition modes have been developed for spaceborne SAR systems aiming on an enhancement of geometric resolution. This offers new opportunities for the calculation of so-called sub-aperture images and their analysis. Due to the increase of illumination time, one single image can be subdivided into multiple subapertures ...
Markus Boldt
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Lecture Notes in Computer Science, 2021
Many light field image super-resolution networks are proposed to directly aggregate the features of different low-resolution sub-aperture images (SAIs) to reconstruct high-resolution sub-aperture images. However, most of them ignore aligning different SAI’s features before aggregation, which will generate sub-optimal light field image super-resolution ...
Shunzhou Wang, Binglu Wang
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Many light field image super-resolution networks are proposed to directly aggregate the features of different low-resolution sub-aperture images (SAIs) to reconstruct high-resolution sub-aperture images. However, most of them ignore aligning different SAI’s features before aggregation, which will generate sub-optimal light field image super-resolution ...
Shunzhou Wang, Binglu Wang
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Polarimetric CSAR Image Quality Enhancement Using Joint Sub-Aperture Processing
2022 7th International Conference on Signal and Image Processing (ICSIP), 2022Guoqing Wu
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Towards Change Analysis in Sequences of SAR Sub-Aperture Images
Earth Resources and Environmental Remote Sensing/GIS Applications X, 2019Markus Boldt
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Improving Minimum Variance Beamforming with Sub-Aperture Processing for Photoacoustic Imaging
2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2021Minimum variance (MV) beamforming improves resolution and reduces sidelobes when compared to delay-and-sum (DAS) beamforming for photoacoustic imaging (PAI). However, some level of sidelobe signal and incoherent clutter persist degrading MV PAI quality.
Rashid Al Mukaddim +2 more
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Mathematical model of sub-aperture field imaging system
AOPC 2020: Optical Sensing and Imaging Technology, 2020Based on the sub-aperture field imaging system which microlens array located at the front of the primary focal plane and the back of the main lens, firstly, the schematic diagram of each microlens re-focus imaging with different aperture information were given in two structures. Then, the coordinate system of the related planes was defined to study the
Peiyue XIE, Wei YANG, Xin LIU, Liang HAN
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A Sub-aperture Division Method for FMCW CSAR Imaging
2020Frequency modulation continuation wave circular synthetic aperture radar (FMCW CSAR) imaging can’t focus imaging,because of the target scattering coefficient to change caused by large synthetic aperture. The sub-aperture imaging algorithm effectively avoids such problems.
Depeng Song +4 more
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