spatially adaptive image restoration

... Engineering Image Restoration -4- Digital Image Processing Department of Biomedical Engineering Image Restoration -5- Digital Image Processing Department of Biomedical Engineering Image Restoration ... Engineering Image Restoration -9- Digital Image Processing Department of Biomedical Engineering Image Restoration -10- Digital Image Processing Department of Biomedical Engineering Image Restoration ... Engineering Image Restoration -14- Digital Image Processing Department of Biomedical Engineering Image Restoration -15- Digital Image Processing Department of Biomedical Engineering Image Restoration...

Ngày tải lên: 12/09/2013, 00:08

... known, but needs to be determined Spatially Adaptive Iteration Spatially adaptive image restoration is the next natural step in improving the quality of the restored images There are various ways ... regularized image restoration, J Vis Commun Image Rep., special issue on Image Restoration, vol 3, no 6, pp 446-455, Dec., 1992 [30] Katsaggelos, A.K and Kang, M.G., A spatially adaptive iterative ... Andrews, H.C and Hunt, B.R., Digital Image Restoration, Prentice-Hall, Englewood Cliffs, NJ, 1977 [4] Angel, E.S and Jain, A.K., Restoration of images degraded by spatially varying point spread functions...

Ngày tải lên: 25/12/2013, 06:16

Ngày tải lên: 08/05/2014, 15:57

... and on rendering tasks, in particular image restoration. 1 At The term image restoration is common, but misleading In fact, our goal is, from a collection of images taken by a camera with a finite ... 3-D Shape Estimation and Image Restoration Paolo Favaro and Stefano Soatto 3-D Shape Estimation and Image Restoration Exploiting Defocus and Motion Blur Paolo Favaro ... of occlusions) The multifocal vector image I generated by equation (2.9) is called ideal image or noise-free image 2.1.3 Sensor noise and modeling errors Images measured by a physical sensor...

Ngày tải lên: 05/06/2014, 12:03

... is on two specific adaptive imageprocessing systems and their associated algorithms: the adaptive image- restoration algorithm and the adaptive edge-characterization Adaptive image processing Segmentation ... to solve image- restoration problems Chapter examines image- restoration algorithms making use of the principles of evolutionary computation Chapter examines the difficult concept of image restoration ... implement adaptive constraint restoration methods for both spatially invariant and spatially variant degradations Chapter utilizes a perceptually motivated image error measure to introduce novel restoration...

Ngày tải lên: 05/06/2014, 12:06

... natural images Such methods have proven to be quite successful in performing image restoration tasks such as image denoising [3] and image super-resolution [5, 20] More specifically, an image is ... criterion in the design and optimization of image processing algorithms and systems [13–19] Image restoration problems are of particular interest to image processing researchers, not only for ... excellent test bed for image modeling, representation and estimation theories When addressing general image restoration problems with the help of Bayesian approach, an image prior model is required...

Ngày tải lên: 20/06/2014, 20:20

... unsupervised method for image colorization by example, which at first matches similar image feature points to predict their color After that, the color is spread all over the image by probabilistic ... colorized image Texture-based scribble boosting greatly facilitates the colorization of large image regions of uniform texture which are expected to obtain common chrominance However, tiny image ... http://asp.eurasipjournals.com/content/2011/1/99 Page 10 of 15 Original image Basic-features image LDA projection matrix DTF-distance maps from each scribble DTF-features image DTF regions User-defined scribbles Figure...

Ngày tải lên: 20/06/2014, 22:20

... regions of the images are displayed Figures and depict the restored images using the six algorithms, for visual quality assessment The (a) (b) Figure Lena image (a) Original image (b) Noisy image with ... (h) Figure 10 Enhanced images for the 3-dimensional data volume of a T1-weighted MR simulated image (a) Original MR image (slice 80) (b) Corrupted MR image (c) Enhanced MR image with CAD (d) WAD ... (h) Figure 11 Enhanced images for the 3-dimensional data volume of a T2-weighted MR simulated image (a) Original MR image (slice 80) (b) Corrupted MR image (c) Enhanced MR image with CAD (d) WAD...

Ngày tải lên: 21/06/2014, 02:20

... Zhou, “Adaptively regularized constrained total least-squares image restoration, ” IEEE Transactions on Image Processing, vol 9, no 4, pp 588–596, 2000 S O Choy, Y H Chan, and W C Siu, Image restoration ... Koivunen, “A robust nonlinear filter for image restoration, ” IEEE Transactions on Image Processing, vol 4, no 5, pp 569– 578, 1995 S Voloshynovskiy, “Robust image restoration based on concept of M-estimation ... perfect image restoration, ” IEEE Transactions on Image Processing, vol 9, no 11, pp 1877–1896, 2000 [10] C Feng, J.-W Ma, and J.-P Chen, “The PSF correction method for satellite image restoration, ”...

Ngày tải lên: 22/06/2014, 19:20

... multichannel image restoration To the best of our knowledge, no previous work on recursive filtering has been developed to address blind multichannel image restoration The estimated image is recursively ... run to perform blind image restoration All the degraded images are firstly EURASIP Journal on Advances in Signal Processing (a) (b) (c) (d) Figure 2: Multichannel blind image restoration results ... Original “Board” image (b) A sampled blurred image out of the four degraded images (c) Restored image using the proposed MRF algorithm with identity regularization operator (d) Restored image using...

Ngày tải lên: 22/06/2014, 23:20

... than that of adaptive local restoration We see that the proposed 16 Image Restoration – Recent Advances and Applications algorithm is capable to perform a good space-variant image restoration ... to specific restoration problems In this paper we deal with restoration of images degraded by space-variant blurs Basically, all fundamental algorithms apply to the restoration of images degraded ... Best local restoration with running discrete sinusoidal transforms versus the model parameters 15 Space-Variant Image Restoration with Running Sinusoidal Transforms 4.2 Local adaptive restoration...

Ngày tải lên: 27/06/2014, 00:20

... image restoration and recognition have become more and more important in image processing, visual tracking, object recognition, etc Usually, image restoration aims at recovering a corrupted image ... learning for image recognition Different from image restoration problems, Introduction image recognition aims at identifying images of different categories See some exemplar face images in figure ... vectored image patch There are two ways to generate the training data: one is to get image patches from a large natural image dataset, the other is to select image patches from the noisy image itself...

Ngày tải lên: 09/09/2015, 11:26

... to the problem of digital colour image restoration 1.2 Digital colour image restoration Image restoration is a general topic, which includes sub-topics like image denoising, deblurring, inpainting, ... demonstrated to be very effective in image restoration (see, e.g [17, 19, 16, 8, 15, 10, 13]) Regular image restoration models are usually designed for 2D greyscale images The complexity of colour ... space 41 Wavelet tight frame based image restoration models 43 2.4.1 The general framelet based image restoration model 46 2.4.2 Synthesis based model, analysis...

Ngày tải lên: 10/09/2015, 09:08

... damaged pixels in the given corrupted images Numerical experiments on various image restoration tasks: recovering images that are blurry and damaged by scratches, image denoising for noise mixed by ... solutions and clear images In this thesis, the wavelet tight frame will be introduced to two types of image restoration problems: image inpainting and computed tomography (CT) image reconstruction ... ”goldhill” and ”cameraman” Images in each column represent (from left to right) corrupted image, restored image by (2.3) with ROLD pre-detector, restored image by (2.2) and restored image by (2.5) The...

Ngày tải lên: 10/09/2015, 09:24

... new adaptive image model We will estimate the clear image of the real scene from only one noisy blurred image of this scene In our context, the blurring phenomenon is characterized by a spatially ... called LiFeAIM, which stands for Line Field based Adaptive Image Model We use the model in a denoising algorithm to examine its goodness in image restoration The experimental result is competent ... Based Adaptive Image Model 34 3.1 Introduction 34 3.2 Markov random field and image modeling 37 3.3 Line field with variant distribution 39 3.4 Line-Field based Adaptive...

Ngày tải lên: 11/09/2015, 10:06

... 3.3 Restoration results of document images with synthetic shadings 55 3.4 Restoration results of real document images with smooth shadings 56 3.5 Restoration results of real document images ... improvements over the original distorted images A Unified Framework for Document Image Restoration Li Zhang LIST OF TABLES 3.1 Running time of each restoration step on the images shown in Figure 3.4, 3.5, ... the background layer image and then extract the foreground reflectance image from the original intensity image based on the notion of intrinsic images In addition, if the image contains merely...

Ngày tải lên: 11/09/2015, 16:08

... Bayesian Approaches for Image Restoration 1.3.1 Image Identification Image identification is an indispensable step in image restoration It provides necessary information for image restoration Typically, ... captured image Noise is a random process, which plays a significant role in image restoration Image restoration cannot be studied only without mentioning the noise, since nearly all the images ... identification, and blind image restoration algorithms are presented in their paper In images with low SNR, indirect image restoration performs well while the direct restoration results vary with...

Ngày tải lên: 12/09/2015, 09:03

... Document Image Restoration (DIR) 1.2.1 What is DIR? 1.2.2 Problems of DIR for Document Images Scanned from Bound Volume 1.3 The Objectives and Contributions 1.3.1 DIR based on 2D Document Image ... Reconstruction of Albedo Distribution 71 4.5 Restoration of Document Image 72 4.5.1 De-shading Model 72 4.5.2 De-warping Model 74 4.5.2.1 Restoration along x-axis 74 4.5.2.2 Restoration along y-axis 76 4.5.2.3 ... final restoration result for the image in Figure3.1 43 3.12 The complete text lines clustered by box-hands method for a double column document image with large document skew 45 4.1 A grayscale image...

Ngày tải lên: 16/09/2015, 17:12