Results 11 to 20 of about 10,528,015 (255)
Point Spread Function Estimation for a Terahertz Imaging System [PDF]
EURASIP Journal on Advances in Signal Processing, 2010 We present a method for estimating the point spread function of a terahertz imaging system designed to operate in reflection mode. The method is based on imaging phantoms with known geometry, which have patterns with sharp edges at all orientations. The
Popescu DanC, Hellicar AndrewD
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Corollaries of Point Spread Function with Asymmetric Apodization [PDF]
International Journal of Optics, 2016 Primary energy based corollaries of point spread function with asymmetric apodization using complex pupil function have been studied in the case of three-zone aperture.
Naresh Kumar Reddy Andra +2 more
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Measurement of the point-spread function of a noisy imaging system [PDF]
, 2007 The averaged point-spread function (PSF) estimation of an image acquisition system is important for many computer vision applications, including edge detection and depth from defocus. The paper compares several mathematical models of the PSF and presents
Richard C Staunton +5 more
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Point spread function modelling for wide-field small-aperture telescopes with a denoising autoencoder [PDF]
, 2020 The point spread function reflects the state of an optical telescope and it is important for the design of data post-processing methods. For wide-field small-aperture telescopes, the point spread function is hard to model because it is affected by many ...
Cai, Dongmei +4 more
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Eddy-Current Sensors with Asymmetrical Point Spread Function
Sensors, 2016 This paper concerns a special type of eddy-current sensor in the form of inductive loops. Such sensors are applied in the measuring systems classifying road vehicles.
Janusz Gajda, Marek Stencel
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New algorithms for adaptive optics point-spread function reconstruction [PDF]
, 2006 Accepted for publication in A&A; 6 pages, 3 figuresInternational audienceContext. The knowledge of the point-spread function compensated by adaptive optics is of prime importance in several image restoration techniques such as deconvolution and ...
Gendron, E +7 more
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Interferometric rotating point spread function
Scientific Reports, 2017 Rotating point spread functions (PSF), such as the double helix (DH) PSF, are widely used in localization-based super-resolution imaging because of their large working depth range. In this article, we propose an interferometric DH PSF (iDH PSF) using two
Wei Wang, Guohai Situ
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Spectrally-resolved point-spread-function engineering using a complex medium
, 2020 Propagation of an ultrashort pulse of light through strongly scattering media generates an intricate spatio-spectral speckle that can be described by means of the multi-spectral transmission matrix (MSTM).
Hilton B. de Aguiar (7180556) +5 more
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Blurred Image Restoration with Unknown Point Spread Function
Al-Mustansiriyah Journal of Science, 2018 Blurring image caused by a number of factors such as de focus, motion, and limited sensor resolution. Most of existing blind deconvolution research concentrates at recovering a single blurring kernel for the entire image.
ghada sabah karam
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Point Spread Function Measurement Based on Single-Pixel Imaging
IEEE Photonics Journal, 2018 Point spread function (PSF) plays an important role in evaluating the quality of optical systems and imaging restoration. Conventional methods, which use a point-like source, acquire the PSF from the perspective of object points and suffer the problem of
Hongzhi Jiang +4 more
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