Results 21 to 30 of about 14,244,062 (276)
Light Field Image Super-Resolution via Mutual Attention Guidance
IEEE Access, 2021 Deep learning-based methods have prompted light field image super-resolution to achieve significant progress. However, most of them ignore aligning different sub-aperture features of light field image before aggregation, resulting in sub-optimal super ...
Zijian Wang, Yao Lu
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Lucky imaging and aperture synthesis with low-redundancy apertures [PDF]
, 2009 Lucky imaging, used with some success in astronomical and even horizontal-path imaging, relies on fleeting conditions of the atmosphere that allow momentary improvements in image quality, at least in portions of an image.
Ward, Jennifer E. +2 more
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Releasing aperture filter constraints [PDF]
, 2007 Aperture filters are a recently introduced class of nonlinear filters used in image processing. In this paper we present a new approach for aperture filter design, improving operator performance with respect to the MSE measure by releasing some of the ...
Marshall, S.
core +3 more sources
Extending AMCW lidar depth-of-field using a coded aperture [PDF]
, 2011 By augmenting a high resolution full-field Amplitude Modulated Continuous Wave lidar system with a coded aperture, we show that depth-of-field can be extended using explicit, albeit blurred, range data to determine PSF scale. Because complex domain range-
Michael J. Cree +5 more
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Precise Aperture-Dependent Motion Compensation with Frequency Domain Fast Back-Projection Algorithm
Sensors, 2017 Precise azimuth-variant motion compensation (MOCO) is an essential and difficult task for high-resolution synthetic aperture radar (SAR) imagery. In conventional post-filtering approaches, residual azimuth-variant motion errors are generally compensated ...
Man Zhang, Guanyong Wang, Lei Zhang
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Modified real-time sub-aperture processing algorithm for airborne high-resolution SAR
The Journal of Engineering, 2019 The problem of real-time imaging in synthetic aperture radar (SAR) system is addressed here. Sub-aperture processing algorithm is usually used in the engineering applications.
Jing Liu +4 more
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Increasing the spatial resolution of signals in optical systems
Компьютерная оптика, 2022 Reconstruction of the signal in the intervals between discrete values is of great importance in solving the problem of spatial superresolution in optical microscopy and digital holography.
V.I. Guzhov +2 more
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Photonics, 2022 Direct imaging systems that create an image of an object directly on the sensor in a single step are prone to many constraints, as a perfect image is required to be recorded within this step.
Shivasubramanian Gopinath +10 more
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Multichannel and Wide-Angle SAR Imaging Based on Compressed Sensing
Sensors, 2017 The multichannel or wide-angle imaging performance of synthetic aperture radar (SAR) can be improved by applying the compressed sensing (CS) theory to each channel or sub-aperture image formation independently.
Chao Sun +4 more
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Electronics Letters, 2022 The motion of targets is well known to result in their defocusing and displacement in SAR imagery, but detection of motion and re‐focusing of targets under generic conditions remains an ongoing interest.
F. M. Watson
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