applications of discrete wavelet transform ppt

... 67 5.3 NoiseReductionwithWavelets 68 5.3.1 WaveletTransformofaNoisyAudioSignal 68 5.3.2 Orthogonal Wavelet Transform and Thresholding . . 69 5.3.3 Nonorthogonal Wavelet Transform and Thresholding ... the construction of fast algorithms for the analysis and synthesis with wavelets and even the definition of wavelet bases. Finally, it allows a review of the fast wavelet transform of Section 1.5 ... 152 Table of Contents List of Figures xix List of Tables xxii Notation xxiii 0 Introduction 1 I Wavelet Theory and Practice 5 1 Wavelets 7 1.1 Introduction 7 1.2 Historic Outline . . 8 1.3 TheWaveletTransform...

Ngày tải lên: 25/12/2013, 05:17

... function to Transforms Fourier transform of : Wavelet transform of with respect to : Approximation of at the scale Detail of at the scale Misc DCT Discrete cosine transform WT Wavelet transform Hz ... fundamentals of the wavelet theory: We discuss the time–frequency resolution of the wavelet transform and compare it to the common short–time Fourier transform. The multiscale property of the dyadic wavelet ... SAMPLING GRID OF THE WAVELET TRANSFORM 17 around is The energy spread of a wavelet atom is thus centered at and of size along time and along frequency. [Mal98] The area of the Heisenberg box of uncertainty...

Ngày tải lên: 19/01/2014, 19:20

... Linear Transform Approximations with Applications to the Discrete Cosine Transform Yinpeng Chen and Hari Sundaram The Katherine K. Herberger College of the Arts and the Ira A. Fulton School of Enginee ... complexity distortion function of approximation of linear transform T for an input set X, C(  T)andD X (  T) are the computational complexity (1) and distortion (9) of transform approximation  T ... that as the resolution J increases, complexity of projection of input x onto Haar wavelet basis B k increases slowly while the complexity of projection of B T k x onto TB k increases fast. This is...

Ngày tải lên: 21/06/2014, 22:20

... presence of incomplete trees of coefficients; (ii) the interactions with the SA-WT. Much of the efficiency of SPIHT, especially at low-rates, is due to the use of zerotrees, that is, trees of coefficients ... segmentation; (2) lossless coding of the segmentation map (object shapes); (3) shape-adaptive wavelet transform of each object; (4) shape-adaptive SPIHT coding of each object; (5) optimal post-coding ... some of these algorithms, deferred to the last section, is of marginal interest here. The main focus of this work is to analyze the quite general mechanisms that influence the effi- ciency of wavelet- based...

Ngày tải lên: 22/06/2014, 22:20

... for example, in three of the four quadrants of the i-v characteristic and can therefore act as sources of energy for specific combinations of voltages and currents. An example of this dual behavior ... 2.20 The resistance element It is often convenient to define the conductance of a circuit element as the inverse of its resistance. The symbol used to denote the conductance of an element is G, where G ... resistance of value R EQ , where R EQ = R 1 + R 2 + R 3 The three resistors could thus be replaced by a single resistor of value R EQ without changing the amount of current required of the battery....

Ngày tải lên: 19/01/2014, 20:20

... 95%. Theory and Applications of Monte Carlo Simulations40 The GUM uncertainty framework is based on the law of propagation of uncertainties (LPU). This methodology is derived from a set of approximations ... Measurement http://dx.doi.org/10.5772/53014 41 Preface The objective of this book is to introduce recent advances and state -of- the-art applications of Monte Carlo Simulation (MCS) in various fields. MCS is a class of statistical methods ... and define the tip of each spoke as one engineering or science discipline: this book lays out the various applications of MCS with a goal of sparking innovative exercises of MCS across fields. Despite...

Ngày tải lên: 16/03/2014, 12:20

... pattern recogni- tion, image processing, biocybernetics, and applications of wavelet transforms. He is a Fellow of IEEE and a Fellow of IAPR. Hindawi Publishing Corporation EURASIP Journal on Advances ... block diagram of the proposed method is shown in Figure 1,whereX denotes coefficients of the wavelet multiresolution representation of an image and  X the reconstructed wavelet transform coeffi- cients. 3.1. ... with PSNR of 16.04 dB at bit-error rate of 8 × 10 −2 , (d) reconstructed Peppers image with PSNR of 25.10 dB at bit-error rate of 2.4 × 10 −3 , (e) reconstructed Peppers image with PSNR of 35.14...

Ngày tải lên: 22/06/2014, 20:20

... sub- bands of discrete wavelet transformed images for the detec- tion of man-made and non-man-made two and more targets, in both cluttered and noncluttered environments. 3. DISCRETE WAVELET TRANSFORM Wavelets ... comparison of wavelet cooccurrence feature is done. The results of the proposed algorithm are found to be satisfactory. Keywords and phrases: discrete wavelet transform, target detection, texture, wavelet ... Simoncelli, “Modeling the joint statistics of images in the wavelet domain,” in Wavelet Applications in Signal and Image Processing VII, vol. 3813 of Proceedings of SPIE, pp. 188–195, Denver, Colo,...

Ngày tải lên: 23/06/2014, 01:20

... the value to be offered in each criterion during the offer and counter-offer process. The selection of negotiation strategy leads to the determination of overall direction of negotiation tactics. ... willingness of an agent to accept an offer, while 0% specifies the offer is in the expectation, and lower negative percentage indicates a higher level of dissatisfaction of an offer. In the ... reserve(PathId,MWreserve,MWLoading,MVARreserve,MVARLoading) 10 Practical Applications of Agent-Based Technology Practical Applications of Agent-Based Technology 40  CR can achieve better satisfaction when NO finds difficulty in striking a deal (number of participants...

Ngày tải lên: 26/06/2014, 23:20

... Rate (PER) of less than 8% with a payload of 1024 octets each in the PSDU, where a noise figure of 6.6 dB (referenced at the antenna), an implementation loss of 2.5 dB, and a margin of 3 dB have ... utilizes soft bit demapping to demap two equalized complex numbers previously transmitted on different data subcarriers into a subgroup of 5 soft bits, and then outputs groups of 250 soft bits ... deinterleaved soft bits are input to Viterbi decoder to recover the original bit streams. Each soft bit value of b g(k)+50 , b g(k)+51 , b g(k)+100 and b g(k)+101 depend on the soft bit magnitude of...

Ngày tải lên: 26/06/2014, 23:20

... web bắt mắt. download: http://www.koolmoves.com size: 2,58 MB 5. CoffeeCup Flash Firestarter 6.5 Phần mềm tiện ích của Coffeecup cho phép bạn có thể tạo được nhanh chóng những flash cùng ... địa chỉ: _http://www.gamemaker.nl/download/gmaker.zip. sn: updateSofts E39F743A8F7AD9E68398E056 (c) petitGarcon@updatesofts.com 5 phần mềm đồ họa cho các hình ảnh sinh động: 1. SWiSHmax ... các trang web sống động và tạo được các biểu tượng logo công ty dễ dàng. download: http://www.coffeecup.com/firestarter size: 3,79 MB (theo t/c Xã hội thông tin số Xuân 2005) Top 5 phần...

Ngày tải lên: 05/07/2014, 14:21

... include users of the free version of V6 (5MB) http://www.grisoft.com Best Free Adware/Spyware/Scumware Remover Updated Spybot Search and Destroy quickly hunts down all those odious applications ... alternative for MS Word, OpenOffice for MS Office XP, The Gimp for Adobe Ph*tosh*p, Gzip for WinZIP are dozens more. Taken collectively this suite provides more than enough software to completely ... utilities and none of them has really satisfied. Until now. Gadwin screen capture does exactly what I want in the way I want. Further, it avoids the trap of providing lots of useless and confusing...

Ngày tải lên: 05/07/2014, 14:21

... install but the extra layer of protection makes the effort definitely worthwhile. http://www.diamondcs.com.au/processguard/ SofoTex.com weekly newsletter New software downloads for week ... ending Feb-07-2005 http://www.sofotex.com The source for best software downloads ************************************************** ** CONTENTS - Freeware of the week - This weeks new freeware ... number of totally free anti-virus utilities than scan all data transfers associated with IM products. All the utilities make use of the virus signature databases from the BitDefender Professional...

Ngày tải lên: 05/07/2014, 14:21

... _____________________________________________________________ Micro$oft Developer Network: TONS of codes for most os M$’s languages http://msdn.microsoft.com/ Home of linux: http://www.linux.org/ Turn Xbox/PS2 ... month's issue of PC World is "Trouble Free PC:Unbeatable tools to help you protect data, remove junk, stop crashes" Its worth checking out, it offers plenty of information. Their ... you a few screenshots of the program. Maybe that'll give you all a better idea. Anyway, this has been immeasurably helpful to me in cleaning out all kinds of stuff out of my computer. I think...

Ngày tải lên: 05/07/2014, 14:21

Ngày tải lên: 05/07/2014, 14:21

Ngày tải lên: 05/07/2014, 14:21

Ngày tải lên: 05/07/2014, 14:21

Ngày tải lên: 05/07/2014, 14:21

Ngày tải lên: 05/07/2014, 14:21