Sparse coding based image restoration and recognition algorithms and analysis

... dictionary learning based image restoration and recognition, dictionary learning algorithms and proximal methods 4 Introduction 1.1.1 Dictionary learning for image restoration and recognition In ... image restoration and recognition have become more and more important in image processing, visual tracking, object recognition, etc Usually, image restoration...

Ngày tải lên: 09/09/2015, 11:26

... method to segment gray levels images by combining several segmentation results Second, we present some genetic segmentation results of multispectral images These images were acquired with a CASI ... in test images S Chabrier et al Original image CAR Segmentation result (NC = 5) (b) AERIAL image Result (c) Segmentation result (NC = 12) Result (a) Segmentation result (NC = 10...

Ngày tải lên: 21/06/2014, 22:20

... Austria Color image processing & analysis Basic color image processing • Important note: Color image processing is not merely the processing of monochrome channels!!! • Yet => some generalizations and ... Color image processing & analysis 4.3 Color image enhancement (4) SSIP’08 – Vienna, Austria Color image processing & analysis Color image...

Ngày tải lên: 24/04/2014, 13:36

... formulation for robust MRE elastogram segmentation Finally, we propose a hybrid level set model for piecewise constant modeling of MRE elasticity 30 CHAPTER NEW LEVEL SET METHODS FOR MRE Level set methods ... for MRE image processing and analysis First, a numerical platform – level set diffusion (LSD) – is derived for noise suppression and imag...

Ngày tải lên: 09/09/2015, 18:50

Ngày tải lên: 21/02/2014, 21:56

... additional costs of object-based coding: the reduced energy compaction of the WT and the reduced coding efficiency of SPIHT that arise in the presence of regions with arbitrary shape and size, and the ... directly or indirectly, to Wavelet transform is a de facto standard in image coding, and SPIHT is one of the most efficient, simple, and flexible algorithms for...

Ngày tải lên: 22/06/2014, 22:20

... NAME CARD IMAGE ENHANCEMENT AND RESTORATION FOR TEXT RECOGNITION ZHANG JIE (B.Sc.(Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT ... collect a large amount of name cards every day They scan name cards, perform OCR operation, and transfer images into editable text Figure 1.1 Scan pen (left) and name card scanner (right) These pr...

Ngày tải lên: 26/11/2015, 22:39

... 34 Iterative Image Restoration Algorithms 34. 1 Introduction 34. 2 Iterative Recovery Algorithms 34. 3 Spatially Invariant Degradation Degradation Model • Basic Iterative Restoration ... D + (34. 33) −2 |} (34. 34) The expression for c in (34. 34) will also be used in Section 34. 8, where higher order iterative algorithms are presented 34. 7 Use of Constraints Iter...

Ngày tải lên: 25/12/2013, 06:16

... 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 Heriot-Watt University, ... framework for the analysis and design of algorithms to estimate 3- D shape from defocused and blurred images, and to eliminate defocus and blur and thus...

Ngày tải lên: 05/06/2014, 12:03

... (2) image fusion using the mixed IMFs of panchromatic and MS images; and (3) quality assessment of the fused image The test data include SPOT images of a forest area and QuickBird images of a ... are the gray value of the fused and MS images, respectively μF is the mean of fused image, μM is the mean of MS image, and m and n are the image...

Ngày tải lên: 20/06/2014, 20:20

... 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 ... all the image patches have sparse representation in terms of a dictionary This dictionary can be trained over some patches [28] Central to the process of image restoration, using...

Ngày tải lên: 20/06/2014, 20:20