Point spread
Point Spread Function Estimation for a Terahertz Imaging System
... the point spread ...delta-like point spread function, the image of the phantom would be constant on every annular ...estimated point spread function over the focal ...
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Evaluation of spatial dependence of point spread function-based PET reconstruction using a traceable point-like 22Na source
... a point spread function (PSF), and PSF information was incorporated into a three-dimensional (3D) iterative re- construction [4, ...a point source within the scanner and acquiring scan data at vary- ...
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A Review on Point Spread Function Estimation TechniquesRitesh Pawar, Dr. Maitreyee Dutta
... The estimation of the blind deconvolution and the blur kernel is very challenging and famous problem in the image processing and real world of computer vision [1]. In the many decades of image processing topic can ...
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Point Spread Functions of Defocused Optical Systems with Hanning Amplitude Filters
... the point spread function so that first minima is reduced beyond the Airy case resulting in super-resolving nature of the optical ...the point spread function of the given optical ...
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Effect of the Illuminating Point Spread Function and Roughness on the Speckle Correlation Field
... to the nonlinear behavior of the Bessel function as well as the Sinc function. Moreover, it is observed that the crowding density increases with increasing the roughness by keeping the dimension of the aperture ...
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Estimation of the Microscope Point Spread Function by Using an Adaptive Image Deblurring Method
... As one of the most widespread techniques in biological investigation and dynamic process, light compound microscopy has used to analyze the optical properties of biological images. The optical microscope is often used to ...
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Measurement of the point spread function of a noisy imaging system
... averaged point spread function (PSF) estimation of an image acquisition system is important for many computer vision applications, including edge detection and depth from ...edge spread function ...
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Studies on three dimensional point spread function energy distribution of biological microscopic imaging system
... In the Digital Confocal Microscopy Technology, the three-dimensional biological specimen are moved along the optical axis to obtain two-dimensional slice images of the sequence through the objective lens focal plane of ...
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Point Spread Function and Modulation Transfer Function Engineering
... This thesis has presented a novel computational imaging approach to sensor protection using point spread function engineering to redistribute laser light on the sensor effectively reducing its peak ...
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The ongoing COVID-19 epidemic curves indicate initial point spread in China with log-normal
... new confirmed cases per day and fitted curve (left) and Log number of new cases per day to show start and stop.. 104.[r] ...
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Point-spread function reconstructed PET images of sub-centimeter lesions are not quantitative
... On the PSF image (Fig. 1b), the spheres had higher measured activity concentra- tion, but the relation between the measured activity concentration and the size of a sphere was non-monoto[r] ...
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Colour depth from defocus incorporating experimental point spread function measurements
... Images of a checkerboard pattern perpendicular to the camera's optical aXIs were obtained using the Basler A631 fc colour camera and the 24mm Sigma photographic lens for six equally spac[r] ...
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The effect of the point spread function on sub pixel mapping
... in the pixel i.e., spectral unmixing predictions, and Lk Vij is the coarse proportion estimated as convolution.. of the current SPM realization.[r] ...
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Enhancing spectral unmixing by considering the point spread function effect
... The method predicts the land cover proportions at a finer spatial resolution inversely from the original coarse proportions before predicting the enhanced proportions i.e., the final pre[r] ...
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Restoration of noisy images blurred by deterministic or stochastic point spread function
... 2 In particular, we applied inverse filter, pseudoinverse filter least- squares , constrained least- squares filter and ·w iener filter in frequency domain to est imate the original real[r] ...
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Pricing Options on Foreign Currency with a Preset Exchange Rate
... between the two option models, is based on percent return on investment. By determining the expiration spot rate, , that equates the percent return on investments for the two models, the criteria for choosing between the ...
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Determining Factors Influencing the Outcome of College Basketball Games
... The model was developed with the intercept set to zero. This is because if the point spread of the game between Team A and Team B was 10, then the point spread be- tween Team B and Team A, ...
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Beamforming Scheme for 2D Displacement Estimation in Ultrasound Imaging
... The estimation of the displacement along the axial direc- tion has been shown to be very accurate due to the oscilla- tions that are naturally present in the RF signals. This paper proposes a method that provides—in the ...
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Theoretical problems in image analysis
... and point out how it can ...realistic point spread functions si multaneously and allow for correlation in the error, in this way extending previous work in this area (see Hall ...
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Blind deconvolution with an application to speckle imaging
... 7.5 The object error, the point spread function error, the convolution error and the total error achieved by the conjugate gradient algorithm for different number of frames at 1000 itera[r] ...
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