Speckle Noise
Hybrid Wavelet-Wiener Filter For Speckle Noise Reduction
... dependent noise known as speckle. Speckle noise is multiplicative in ...of noise[1]-[5] is an inherent property of medical ultrasound imaging and consequently, the image resolution and ...
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A review on performance evaluation of anisotropic diffusion filter for denoising the speckle noise in retinal images
... of speckle noise, the Standard Deviation (SD) andSignal-to-Noise Ratio (SNR) measures have not been reached expected value but the proposed filter has produced moderate values for each measures and ...
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A Review on Speckle Noise Filtering Techniques for SAR Images
... using speckle filters. Several different methods are used to eliminate speckle noise, based upon different mathematical models of the ...(1) Speckle noise in SAR is a multiplicative ...
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Reduction of Speckle Noise in SDOCT Retinal Images by Fuzzification and Anisotropic Diffusion Filtering
... Spectral Domain Optical Coherence Tomography (SDOCT) is a well accepted clinical standard for diagnosing and monitoring the pathological changes in optic disc and retinal layers. In recent times, even though spectral ...
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The Division of Overlapped Fingerprint using Speckle Noise Reduction
... very challenging problem for the existing algorithms. We have proposed the speckle noise reduction technique which is the environmental noise which generates in the overlapped fingerprint .To get the ...
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SPECKLE NOISE REDUCTION USING BILATERAL FILTER
... with noise affecting both the visual quality and hindering quantitative image ...for speckle noise ...reduce speckle noise. The main goal of the speckle noise reduction is ...
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Speckle Noise Reduction in SAR Image: A Survey
... The speckle phenomenonin SAR data hinders the interpretation these data and reduces the accuracy of segmentation, classification and analysis of objects contained within the ...the noise effect is an ...
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Multidimensional Speckle Noise Model
... namely, speckle noise [12, 13, 14, 15]. Despite speckle consists of a true elec- tromagnetic measurement, it must be considered as a noise component in order to assure access to the useful ...
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Comparative Study on Speckle Noise Suppression Techniques for Ultrasound Images
... Ultrasound images are corrupted by speckle noise that affects all coherent imaging systems. Within each resolution cell a number of elementary scatters reflect the incident wave towards the sensor. The ...
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Comprehensive Study on Despeckling of PolSAR ...
... is noise which degrades the quality of information that can be extracted from the ...This noise can be additive white Gaussian noise (AWGN) or granular multiplicative noise ...by ...
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A Hybrid DCT and DWT Color Image Watermarking in RGB Color Space
... to Noise Ratio (PSNR) and Normalized correlation ...pepper noise, Gaussian noise, Speckle noise and filtering attacks like Median filter, Gaussian filter and can be used as a blind ...
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CONTOURLET BASED IMAGE DENOISING
... In this paper contourlet based image denoising algorithm which can restore the original image corrupted by salt and pepper noise, Gaussian noise, Speckle noise and the poisson noise is ...
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Optical energy variability induced by speckle: the cases of MERLIN and CHARM-F IPDA lidar
... of noise on the measurements like the optical energy variability induced by ...speckle. Speckle is due to interference as the lidar beam are quasi ...monochromatic. Speckle contribution to the ...
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Image De-Noising By Fuzzy, DBMF and Bilateral Filters
... Noise is often a random variation associated with image Intensity in addition to visible as grains from the ...Gaussian noise, salt and pepper noise, speckle noise as well as Poisson ...
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Detection of Kidney Abnormalities in Noisy Ultrasound Image
... dependant noise known as speckle. The speckle pattern depends on the structure of the image tissue and various imaging ...parameters. Speckle noise present in ultrasound image affects ...
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Speckle Suppression by Integrated Sum of Fully Developed Negatively Correlated Patterns in Coherent Imaging
... the speckle noise in the final image, which is the sum of the corresponding images integrated over time using CCD cameras, is ...the speckle contrast of the integrated sum of two fully-developed ...
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A HYBRID APPROACH FOR DENOISING DICOM IMAGES.
... Many methods have been available for speckle reduction [4], [5], [6], [9]. The existing filters used for speckle noise reduction techniques are lee, kaun, hybrid filters and wavelet filters. ...
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An Approach based on Run Length Count for Denoising the Kannada Characters
... synthetic noise and printed images with ...and Speckle noise models for introducing synthetic ...and Speckle noise models ...after noise removal are shown in Fig ...
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NOISE REMOVAL & SEGMENTATION OF MACHINE PRINTED & HANDWRITTEN GURMUKHI DOCUMENTS
... of noise. The varieties include Speckle noise, Gaussian noise, Salt and pepper ...separate noise from an image while maintaining the desired information and quality of an ...
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AN APPROACH FOR DENOISING THE COLOR IMAGE USING HYBRID WAVELETS
... Gaussian Noise, Speckle Noise, Salt & Pepper Noise etc and many different types of techniques like Chroma and luminance noise separation, Linear & Non Linear Filters, Selection ...
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