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image domain techniques 157

Báo cáo khoa học:

Báo cáo khoa học: "An Alignment Method for Noisy Parallel Corpora based on Image Processing Techniques" doc

Báo cáo khoa học

... alignment resolution give rise to different types of image pattern that are susceptible to well established IP techniques ~-::.~ ~.- , " Constraints Image Pattern Structure Edge preserving One-to-one ... This paper presents a new approach based on image processing (IP) techniques, which is immune to such predicaments prob(s,t) prob(s), prob(t) Like the image of a natural scene, the linguistic or ... from a wealth of effective, well established IP techniques, including convolution-based filtering, texture analysis, and Hough transform BCP as image processing 2.2 Properties of aligned corpora...
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Image denoising techniques to improve the performance on optical character recognition.

Image denoising techniques to improve the performance on optical character recognition.

Công nghệ thông tin

... be replaced by the value of the image pixel being the middle position of the example Pseudocode: OutputImage [image width] [image height] windowColor [image width] [image height] beginX := (window ... conception of the noise image: The noise image is the phenomenon which the random image points of the images are effected by outside factors Therefore, they’ll creat image points having unusual ... histogram value of the image pixels Picture (a)Random color noise image (10%) (b) Denoised Image with window size = 5x5 Picture 3: (a) Ran color noise image (10%) (b) Denoised Image with window size...
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The optimisation of elementary and integrative content based image retrieval techniques

The optimisation of elementary and integrative content based image retrieval techniques

Tổng hợp

... any image analysis process is to select the criteria for identifying key information 2.2 Image Annotation Image annotation is defined as describing an image using a text format Automatic image ... converting image signatures in the image processing domain to a weighted signature in the information retrieval domain This technique is unlike previous CBIR approaches, which were based only on image ... topic with image retrieval as one of the key challenges In digital image processing and image retrieval systems, CBIR is an area of interest and has been applied widely in many computerised image...
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fuzzy techniques for image segmentation

fuzzy techniques for image segmentation

Tin học

... theory • Pattern recognition “young person” Fuzzy Techniques for Image Segmentation “cold beer” Object characteristics in images Fuzzy Techniques for Image Segmentation a o u L´szl´ G Ny´l a o u L´szl´ ... Fuzzy Techniques for Image Segmentation Probability vs grade of membership a o u L´szl´ G Ny´l Outline Fuzzy systems Fuzzy sets Fuzzy image processing Fuzzy connectedness Fuzzy Techniques for Image ... characteristic functions.” (1970, J.M.B Prewitt) Fuzzy Techniques for Image Segmentation Fuzzy image processing a o u L´szl´ G Ny´l Fuzzy Techniques for Image Segmentation Fuzzy thresholding a o u L´szl´...
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Nonlinear techniques for  color image processing

Nonlinear techniques for color image processing

Điện - Điện tử

... techniques For example, conventional linear techniques cannot cope with nonlinearities of the image formation model and fail to preserve edges and image details To this end, nonlinear color image ... facilitate subsequent image processing operations such as edge detection, image segmentation and pattern recognition Numerous filtering techniques have been proposed to date for color image processing ... Thus image filters should be robust to impulsive or generally heavy-tailed noise In addition, when color images are processed, care must be taken to preserve image chromaticity, edges and fine image...
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grahn, geladi  -  techniques and application of hyperspectral image analysis

grahn, geladi - techniques and application of hyperspectral image analysis

Thiết kế - Đồ họa - Flash

... modified image Some simple examples would be counting of particles (image to number), the calculation of intensity histograms (image to vector), image smoothing and edge enhancement (image to ... Multivariate Images, Hyperspectral Imaging: Background and Equipment Paul L M Geladi, Hans F Grahn and James E Burger 1.1 Introduction 1.2 Digital Images, Multivariate Images and Hyperspectral Images ... multivariate image and hyperspectral image and gives an overview of some of the image generation techniques for producing multivariate and hyperspectral images The emphasis is on imaging in the...
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wilhelm burger, mark j. burge  -  principles of digital image processing. fundamental techniques

wilhelm burger, mark j. burge - principles of digital image processing. fundamental techniques

Thiết kế - Đồ họa - Flash

... methods that originate in image processing, such as image transformation (morphing), reconstruction of 3D models from image data, and specialized techniques such as image- based and non-photorealistic ... Table 1.1) Grayscale images (intensity images) The image data in a grayscale image consist of a single channel that represents the intensity, brightness, or density of the image In most cases, ... per pixel is not sufficient Image depths of 12, 1.2 Image Acquisition 11 Table 1.1 Bit depths of common image types and typical application domains Grayscale (Intensity Images): Chan Bits/Pix Range...
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kropatsch, bischof  -  digital image analysis selected techniques and applications

kropatsch, bischof - digital image analysis selected techniques and applications

Thiết kế - Đồ họa - Flash

... history Image databases III Robust and Adaptive Image Understanding Graphs Technical drawings Image pyramids Line images Irregular pyramids Range images Robust methods Minimum Description Length ... Least squares matching Original image Left: W image Right: Q image Classified image and extracted points and lines Delaunay triangulation ... Mathematical Methods for Image Analysis Introduction to Part I Signal and image analysis deals with the description of one- or multidimensional signals, e.g., speech, music, images and image sequences,...
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jayanta mukhopadhyay  -  image and video processing in the compressed domain

jayanta mukhopadhyay - image and video processing in the compressed domain

Thiết kế - Đồ họa - Flash

... compressed JPEG images using Gaussian filtering in the compressed domain: (a) original image, and (b) compressed at quality factor 10 (JPQM = 3.88), and (c) filtered image (JPQM = 10.74) Image sharpening ... nCbCr: (a) image2 2 and (b) maximally saturated image Chromaticity points in nCbCr: (a) image2 2 and (b) maximally saturated image (a) image2 2: Desaturation ... (x) Original images: (a) image7 and (b) image2 0 Color enhancement of the images Color enhancement of image2 0’ obtained with more than one iteration:...
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Báo cáo hóa học:

Báo cáo hóa học: " Research Article Novel Techniques of Single-Carrier Frequency-Domain Equalization for Optical Wireless Communications" doc

Hóa học - Dầu khí

... Journal on Advances in Signal Processing Electrical domain Optical domain Electrical to optical converter (LED) Electrical modulator Electrical domain Optical to electrical converter (photodiode) ... respectively Throughout the paper, lower cases and upper, are used to represent time domain and frequency domain signals, respectively; and represent linear and circular convolution, respectively; ... yield the same equation as in (6) and the frequency domain symbol block S is estimated as in (9) After that, S is transformed back into the time domain to yield s = FH S where FH is the IFFT matrix...
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báo cáo hóa học:

báo cáo hóa học:" Image and video quality improvement techniques for emerging applications" docx

Hóa học - Dầu khí

... topics: • Novel image and video processing optimization algorithms based on objective and subjective image quality assessment • Image/ video enhancement and analysis for 3D visualization • Image and ... noise in original images or residual noise and distortions in filtering images are practically invisible In the second article entitled “No-reference image quality metric based on image classification”, ... addition to image and video processing algorithm optimization using different image quality metrics, the image/ video enhancement and analysis for 3D visualization plays an important role in image and...
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Báo cáo hóa học:

Báo cáo hóa học: "Image and video quality improvement techniques for emerging applications" doc

Hóa học - Dầu khí

... topics: • Novel image and video processing optimization algorithms based on objective and subjective image quality assessment • Image/ video enhancement and analysis for 3D visualization • Image and ... noise in original images or residual noise and distortions in filtering images are practically invisible In the second article entitled “No-reference image quality metric based on image classification”, ... addition to image and video processing algorithm optimization using different image quality metrics, the image/ video enhancement and analysis for 3D visualization plays an important role in image and...
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Báo cáo hóa học:

Báo cáo hóa học: " Facial Image Compression Based on Structured Codebooks in Overcomplete Domain" docx

Báo cáo khoa học

... transform image coding is due to the accuracy of the underlying stochastic image model One of the most efficient and accurate stochastic image models that represent images in the wavelet transform domain ... Figure 7: (a) Test image Slava and its fragment (marked by square): two-region modeling of the fragment, (b) in the coordinate domain, and (c) in the nondecimated wavelet transform domain PRACTICAL ... assumption that natural images in the coordinate domain can be represented as a union of several stationary regions of different intensity levels or in the nondecimated wavelet transform domain [23] using...
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Báo cáo hóa học:

Báo cáo hóa học: " Evolutionary Techniques for Image Processing a Large Dataset of Early Drosophila Gene Expression" pptx

Báo cáo khoa học

... were summed for each image and the image with the lowest total cost was used as the starting image All other images in the time class were registered to this image The starting image was unaffected ... SETS FROM RAW IMAGES Sources of variability in our images can be roughly subdivided into natural embryo variability in size and shape, natural expression pattern variability, errors of image processing ... steps of image processing which follow the scaling: stripe straightening, stripe registration, and expression surface stretching The details of the processing techniques are in Section After image...
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Báo cáo hóa học:

Báo cáo hóa học: " Blind Image Deblurring Driven by Nonlinear Processing in the Edge Domain" potx

Báo cáo khoa học

... of both smooth image and edges, either straight or curved 4.1 Local Radon transform of the edge image: original image and blur characterization The edge image is a sparse complex image built by ... Figure 9: F16 image Figure 7: First column: details of the F16 blurred image in the edge domain Second column: corresponding restored details in the edge domain Figure 10: Cameraman image columns ... restored image While for class of images with known probabilistic description, such as text images, the nonlinearity design can be conducted on the basis of a Bayesian criterion, for natural images,...
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Báo cáo khoa học:

Báo cáo khoa học: " Four-dimensional dosimetry validation and study in lung radiotherapy using deformable image registration and Monte Carlo techniques" pdf

Báo cáo khoa học

... running Linux Deformable Image Registration The optical flow method of deformable image registration was then applied to calculate the deformation matri- ces between the CT images from the different ... phase which smears details in 4D CT images Since accurate optical flow registration depends upon clarity of the details in each image, any degradation in image quality can impact the quality ... within 2% for most cases in our study Errors in image registration can also affect the calculated dose There are three root causes for errors in image registration Artifacts in the 4D CTs, the...
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Báo cáo khoa học:

Báo cáo khoa học: " A 4D IMRT planning method using deformable image registration to improve normal tissue sparing with contemporary delivery techniques" pot

Báo cáo khoa học

... deformable image registration (DIR) For each voxel on the reference CT, the corresponding voxel on another phase of the CT dataset can be derived through DIR by transforming the source image (i.e., ... Oncology Biology Physics 2006, 65:1560 -1571 Yamamoto T, Langner U, Loo BW, Shen J, Keall PJ: Retrospective Analysis of Artifacts in Four-Dimensional CT Images of 50 Abdominal and Thoracic Radiotherapy ... as: Li et al.: A 4D IMRT planning method using deformable image registration to improve normal tissue sparing with contemporary delivery techniques Radiation Oncology 2011 6:83 Submit your next...
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image enhancement frequency domain methods

image enhancement frequency domain methods

Cao đẳng - Đại học

... |F(u,v)| displayed as image |F(u,v)| displayed in 3-D Image Magnitude Spectrum 10 Image Magnitude Spectrum 11 Image Magnitude Spectrum 12  As the size of the box increases in spatial domain, the corresponding ... continuous -domain images, which maybe of infinite extent For discrete images of finite extent, the analogous Fourier transform is the 2-D DFT 24   Suppose f(m,n), m = 0,1,2,…M – 1, n = 0,1,2,…N NM image ... individual DFTs o DFT of a scaled image is the DFT of the original image scaled by the same factor 30  Spatial scaling (only for continuous -domain) : o If a, b > 1, image “shrinks” and the spectrum...
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On using and improving gradient domain processing for image enhancement

On using and improving gradient domain processing for image enhancement

Kỹ thuật - Công nghệ

... multispectral image fusion to hyperspectral image fusion1 In multispectral image fusion methods [8, 88, 40], images consist of three visible-spectrum images (RGB) and one extra image that integrates ... which is referred to as gradient domain (a.k.a 1st-order domain) filtering or gradient domain image processing, has recently become the new cornerstone of numerous image processing algorithms [24, ... traditional image processing pipeline and gradient domain image processing pipeline is illustrated in Figure 1.1 Assume we need to enhance the contrast level of an input image Using traditional image...
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Xây dựng Domain Controller tích hợp DNS server

Xây dựng Domain Controller tích hợp DNS server

Quản trị mạng

... Active Directory Domain Services Installation Wizard: ánh d u ch n “Use advanced mode installation” > Next p tho i Choose a Deployment Configuration: ánh d u ch n “Create a new domain in a new ... Website: www.nhatnghe.com p tho i Name the Forest Root Domain: Nh p tên NhatNgheIT.edu > Next Ch giây lát h th ng th c hi n b c ki m tra p tho i Domain NetBIOS Name: Next 01-7 TRUNG TÂM ÀO T O M NG ... ch n Windows Server 2008 > Next p tho i Additional Domain Controller Options: Gi nguyên u check “DNS server” > Next p tho i Active Directory Domain Services Installation Wizard: Yes 01-8 TRUNG...
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