Speckle and Coherence
A New Nonlinear Anisotropic – Wiener Method for Speckle Noise Reduction in Optical Coherence Tomography
... Ass. Professor of computer science, Department of Mathematics, Faculty of Science, Menofia University, Egypt ABSTRACT Removing noise from the original medical image is still a challenging research in image processing. ...
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Skin Surface Reconstruction and 3D Vessels Segmentation in Speckle Variance Optical Coherence Tomography
... Keywords: Medical Imaging, 3D Reconstruction, Vessel Segmentation, Visualization. Abstract: In this paper we present a method for in vivo surface reconstruction and 3D vessels segmentation from Speckle- Variance ...
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Imaging of nanoparticle-labeled stem cells using magnetomotive optical coherence tomography, laser speckle reflectometry, and light microscopy
... Keywords: regenerative medicine; optical coherence tomography; cell imaging; magnetic nanoparticles; stem cells; laser speckle. Paper 140823PR received Dec. 12, 2014; accepted for publication Mar. 12, 2015; ...
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Visualization of human retinal capillary networks: a comparison of intensity, speckle-variance and phase-variance optical coherence tomography
... Optical coherence tomography; Phase contrast technique; Imaging system; Medical optics instrumentation * ...optical coherence tomography (OCT) [1,2] for imaging and visualization of retinal perfusion maps ...
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<p>Correlation between laser speckle flowgraphy and optical coherence tomography angiography measurements in normal and glaucomatous eyes</p>
... Results: ONH tissue blood fl ow, tissue mean blur rate (MBR-T), and cpVD in the outer layer of the retina signi fi cantly decreased with the progression of glaucoma stage, although the lat[r] ...
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Multidimensional Speckle Noise Model
... two speckle noise ...of speckle noise depends also on the phase term φ x , which has an im- portant effect when interferometric applications are consid- ...high coherence, about 0 ...the ...
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Speckle Reduction in Imaging Projection Systems
... Diffusers; Speckle Contrast Reduction; Laser Pico-Projectors ...of speckle in laser images is caused by the interference of the coherent ...reduce speckle by decreasing the temporal and spatial ...
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Effect of Partially Coherent Light on the Contrast of Speckle Patterns Obtained Using Digital Image Processing of Speckle Photography
... ABSTRACT The paper is devoted to study theoretically, the effects of some parameters on the visibility of the speckle patterns. For this propose, a theoretical model for a periodic rough surface was considered. ...
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Speckle Imaging with the SOAR and the Very Large Telescopes
... 2. SPECKLE IMAGING: OBSERVATIONS AND ANALYSIS ...typical speckle imaging observation involves acquiring a series of images of object of interest (binary and multiple stars, extended objects like solar ...
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Speckle observations of composite spectrum stars with PISCO in
... With angular separations larger than ρ d , the objects of the second group should have been resolved by PISCO. Let us remark that all of these objects were only observed once by PISCO and this absence of detection is not ...
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Performance analysis of speckle ultrasound image filtering
... 2011). Speckle reducing filters based on anisotropic diffusion algorithms were introduced by Perona and Malik (Perona 1990) ...in speckle noise ...the coherence enhancing diffusion (CED), that allows ...
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Welcome. Ontario Speckle Park Sale. herdbuilder. Welcome Speckle Park Breeders and soon to be Speckle Park Breeders,
... the Speckle Park beef ...fellow Speckle Park breeders in Western Canada who developed this breed and have been a great resource to us all here in ...first Speckle Park cattle to Ontario in ...
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Individual Coherence & Group Coherence
... Individual Coherence Group Coherence References Extras Initially, it may seem undesirable for an account of epistemic rationality to allow for (kosher) doxastic states that cannot be perfectly ...
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Speckle processing for ultrasonic imaging
... narrow-band autocorrelation\functions plotted for each data set are marked. For DS-3 and DS-4, speckle i;;terf~rometry provides much improved estimates of the autocor[r] ...
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Speckle Reduction in Ultrasound Image
... of speckle reduction of medical ultrasound is presented. Four speckle reduction filters are described in a detailed fashion to facilitate implementation for research and ...Oriented Speckle Reducing ...
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Infrared Speckle Imaging at Palomar
... In this paper reconstructions of diffraction limited infrared images are presented, along with the results of an investigation of the relation between the volume the of bispectrum used w[r] ...
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Blind deconvolution with an application to speckle imaging
... 7.6 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 3000 ite[r] ...
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SPECKLE NOISE REDUCTION FILTERS ANALYSIS
... Abstract— Speckle noise reduction from echocardiographic images is essential to study them for medical analysis point of ...world. Speckle noise gets introduced to them at the time of acquiring such images ...
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Bispectral reconstruction of speckle-degraded images
... Chapter 4 presents the bispectral reconstruction of speckle degraded im-.. ages, including the multiplicative noise model, homomorphic transformation, Gaussian approximation, bispectral [r] ...
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A wavelength diversity technique for smoothing of speckle
... In section 2.4 we report experiments using collimated band- limited light from a carbon arc source and an argon laser to demonstrate the wavelength dependence of [r] ...
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