digital image processing techniques in remote sensing

... Using Java packages the original material into a series of compact volumes, thereby supporting a flexible sequence of courses in digital image processing Tailoring the contents to the scope of individual ... titled Fundamental Techniques, we have attempted to compile the core “vocabulary” of digital image processing, starting from the basic concepts and elementary properties of digital images through ... versions available online [12] N Efford ? ?Digital Image Processing? ??A Practical Introduction Using Java” Pearson Education, Upper Saddle River, NJ (2000) [13] D Flanagan “Java in a Nutshell” O’Reilly,

Ngày tải lên: 05/06/2014, 11:55

... lost  Many image processing functions fail on dithered images  21/11/15 Duong Anh Duc - Digital Image Processing Dithering 21/11/15 Duong Anh Duc - Digital Image Processing Dithering Grey-scale ... Digital Image Processing Some Special Techniques Dithering 21/11/15 Duong Anh Duc - Digital Image Processing Dithering  Dithering, also called Halftoning or Color Reduction, ... and Dithering Techniques Chapter 15, Colour Models and Colour Applications 21/11/15 Duong Anh Duc - Digital Image Processing 46 Digital Image Processing Some Special Techniques Thinning (Lọc

Ngày tải lên: 30/01/2020, 07:51

... contrast-enhancement technique in image processing This subtopic is included in almost all image- processing courses and textbooks It is however one of the difficult image processing techniques to fully ... sk, …, sL-1} into which the input intensity values are correspondingly mapped (Figure 1) Thus, each pixel-intensity in the original image is mapped into a new intensity by indexing into this table ... for the spring 2005 semester with nine computer-engineering undergraduate students in the digital signal processing class (which had an image processing a sub-area within the course) In these courses,

Ngày tải lên: 30/10/2022, 17:25

... having to become a signal processing expert The key lies in focusing on the fundamentals and their relevance to digital image processing The notation, usually a source of trouble for the beginner, ... Chapter 4 # Image Enhancement in the Frequency Domain Basics of filtering in the frequency domain Filtering in the frequency domain is straightforward It consists of the fol- lowing steps: - ... Enhanced image image FIGURE 4.5 Basic steps for filtering in the frequency domain of this basic theme The important point to keep in mind is that the filtering process is based on modifying the

Ngày tải lên: 08/05/2014, 15:46

... ite image obtained by treating (a), (b), and (c) as the red, green, blue components of an RGB image (f) Image obtained in the same manner, but using in the red channel the near-infrared image in ... # Color Image Processing a b Gide FIGURE 6.31 Adjusting the intensity of an image using color transformations (a) Original image (b) Result of decreasing its intensity by 30% (Le., letting k = ... full-color image obtained by combining the first three images into an RGB image Full-color images of dense areas are difficult to interpret, but one notable feature of this image is the difference in

Ngày tải lên: 08/05/2014, 15:59

... Digital Image Processing, 2nd ed www.imageprocessingbook.com Chapter Wavelets and Multiresolution Processing © 2002 R C Gonzalez & R E Woods Digital Image Processing, 2nd ed www.imageprocessingbook.com ... Digital Image Processing, 2nd ed www.imageprocessingbook.com Chapter Wavelets and Multiresolution Processing © 2002 R C Gonzalez & R E Woods Digital Image Processing, 2nd ed www.imageprocessingbook.com ... Digital Image Processing, 2nd ed www.imageprocessingbook.com Chapter Wavelets and Multiresolution Processing © 2002 R C Gonzalez & R E Woods Digital Image Processing, 2nd ed www.imageprocessingbook.com

Ngày tải lên: 08/05/2014, 15:59

... illustration of run- length coding aan FIGURE 8.3 Illustration of run-length coding: (a) original image (b) Binary image with line 100 marked (c) Line profile and binarization threshold (d) Run-length ... perception of the information in an image normally does not involve quantitative analysis of every pixel value in the image In general, an observer searches for distinguishing features such as ... for reducing or eliminating any coding, interpixel, or psychovisual redundancies in the input image The specific appli- cation and associated fidelity requirements dictate the best encoding approach

Ngày tải lên: 08/05/2014, 16:10

... from image processing methods whose input and output are images, to methods in which the inputs are images, but the outputs are attributes extracted from those images (in the sense defined in Section ... and b’ the intercept of the line containing both (Xs y,) and (x;, y)) in the xy-plane In fact, all points contained on this line have lines in pa- rameter space that intersect at (a’, b’) Figure ... slope-intercept represen- tation Instead of straight lines, however, the loci are sinusoidal curves in the p@-plane As before, Q collinear points lying on a line x cos 6; + ysin6; = p; yield Q sinusoidal

Ngày tải lên: 08/05/2014, 16:29

... platforms make automatic image classification and analysis a task of considerable interest in remote sensing The applications of remote sensing are varied and include land use, crop inventory, crop disease ... training patterns, and a set of such patterns from each class is called a training set The process by which a training set is used to obtain decision func- tions is called learning or training In ... all training patterns, the training set must be pre- sented again The machine learning process is continued by letting y(5) = y(1), y(6) = y(2), y(7) = y(3), and y(8) = y(4), and proceeding in the

Ngày tải lên: 08/05/2014, 16:48

... morphological image processing (Chapter 9) The material in this chapter begins a transition from methods whose inputs and outputs are images to methods in which the inputs are images, but the ... most interesting aspects of a course in digital image processing is the pictorial 190 Chapter 12 Problem Solutions training patterns of class ! have been multiplied by ¡1 If the classes are linearly ... explanation regarding the fact that much of restoration centers around the instabilities inherent in inverse ®ltering, it is possible to introduce the |interactive} form of the Wiener ®lter in Eq (5.8-3)

Ngày tải lên: 05/06/2014, 11:40

... fundamental preprocessing step in image processing Two forms of such shrinking have been of greatest interest: (1) T h e image is transformed to a "topologically equivalent" image t h a t has fewer ... Serial and Parallel Propagation in Images", in Architecture and Algorithms for Digital Image Processing, A Oosterlinck and P.-E Danielsson, (eds.) Proceedings of the SPIE,... satisfied ... 1 INTRODUCTION T h e "shrinking" of binary images to similarly connected representations t h a t have smaller foregrounds (i.e., fewer Ts) has found application as a fundamental preprocessing

Ngày tải lên: 05/06/2014, 11:59

... measuring precision In this section we will provide more analysis concerning such 22 Digital Image Processing characteristics as processing. .. measuring methods 4.1 Image processing ... an insight on the possibilities offered by digital image processing algorithms in various fields. Digital image processing is quite a multidisciplinary field, and therefore, the chapters in ... for the digital manipulation of digital images. The development of advanced, fast and reliable algorithms for digital image pre- and post- processing, digital image compression, digital image

Ngày tải lên: 28/06/2014, 08:20

... an insight on the possibilities offered by digital image processing algorithms in various fields. Digital image processing is quite a multidisciplinary field, and therefore, the chapters in ... for the digital manipulation of digital images. The development of advanced, fast and reliable algorithms for digital image pre- and post- processing, digital image compression, digital image ... live in a time when digital information plays a key role in various fields. Whether we look towards communications, industry, medicine, scientific research or entertainment, we find digital images

Ngày tải lên: 29/06/2014, 08:20

... original image slightly, to make the edges clearer. (a) The original image (b) Its edge image Figure 1.4: Finding edges in an image Removing detail from an image. For measurement or counting ... medical imaging. Even if the picture is not immediately recognizable, it will not be just a random blur. 1.2 What is image processing? Image processing involves changing the nature of an image in order ... shown in figure 1.14 However, such a plot is of limited use to us in terms of image. .. subdividing an image into constituent parts, or isolating certain aspects of an image: finding lines,

Ngày tải lên: 23/07/2014, 00:24

... for Remote Sensing 3000 Mixed pixel (soil + rocks) The concept of hyperspectral imaging in remote sensing 11 © 2008 by Taylor & Francis Group, LLC 12 High-Performance Computing in Remote Sensing ... for remote sensing is provided The chapter also includes an application case study in which the pixel purity index (PPI), a well-known remote sensing data processing algorithm, is implemented in ... of Cluster Computing in Remote Sensing 2.2.2 Heterogeneous Computing in Remote Sensing 2.2.3 Specialized Hardware for Onboard Data Processing

Ngày tải lên: 12/08/2014, 03:20

... modifications in 4.6 We then present our conclusions in 4.7 4.2 Linear Mixing Model The linear mixing model assumes that each spectrum in a given hyperspectral image may be decomposed into a linear combination ... is truly a staggering number Only by automating the data processing, and by using stateof-the-art processing capability, will there be any chance of hyperspectral imagery making a significant contribution ... panchromatic imagery, with analysts making determinations based on the shapes of objects in the image Hyperspectral imagery and algorithms hold the promise of assisting the analyst by making determinations

Ngày tải lên: 12/08/2014, 03:20

... for high-performance computing in many ongoing and planned remote sensing missions [3, 11] To address the need for cost-effective and innovative algorithms in this emerging new area, this chapter ... present in the image data structure, as indicated in the previous subsection A second reason has to with the cost of inter-processor communication In spectral-domain partitioning, the window-based ... all incoming training patterns Once the back-propagation learning algorithm is finalized, a classification stage follows, in which each input pixel vector is classified using the weights obtained

Ngày tải lên: 12/08/2014, 03:20

... viewpoint of their incorporation to a remote sensing data processing system are r r r r Regularity of computations in the processing and data access leads to a better understanding for new users In ... to work together in ways that were previously impossible In our opinion, the main advantages of heterogeneous platforms for their incorporation to a remote sensing data processing system are r ... Computing in Remote Sensing [24] D Valencia and A Plaza, FPGA-Based Compression of Hyperspectral Imagery Using Spectral Unmixing and the Pixel Purity Index Algorithm, vol 3993, Lecture Notes in

Ngày tải lên: 12/08/2014, 03:20

... relevant to remote sensing. 183 © 2008 by Taylor & Francis Group, LLC 184 High-Performance Computing in Remote Sensing 9.1 Introduction The concept of distributed computing has been around since ... computational viewpoint, remote sensing could have a broad interpretation to mean both on-orbit sensors that are remote from the natural phenomena being measured, and in- situ sensors that could be in a sensor ... An Introduction to Grids for Remote Sensing Applications 185 science projects relevant to remote sensing. We conclude with a discussion of future directions. 9.2 Previous Approaches The origins

Ngày tải lên: 12/08/2014, 03:20

... Performance Computing in Remote Sensing r The many different actors involved Science is becoming increasingly international and interdisciplinary, resulting in an increased total number... ... for ingesting, processing, and analyzing atmospheric remote sensing data. The project consists of several software packages, with the main packages being BEAT and VISAN. The BEAT package contains ... Computing in Remote Sensing Figure 11. 9 ASAR mosaic obtained using G-POD considering GM products acquired from March 8 to 14, 2006... infrastructure) of the DataGrid project have been included

Ngày tải lên: 12/08/2014, 03:20