Resultados de Pesquisa

INGLÊS

3d Dynamic Scene Analysis - A Stereo Based Approach

de Olivier Faugeras e Zhengyou Zhang

135,18€ + 10% EM CARTÃO

portes grátis

 Describes several approaches to the analysis of three-dimensional dynamic scenes by the use of a stereovision system. The text should be of interest to scientists concerned with the analysis of moving images, particularly those dealing with robots and computer vision.
INGLÊS

Vlsi For Pattern Recognition And Image Processing

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 During the past two decades there has been a considerable growth in interest in problems of pattern recognition and image processing (PRIP). This inter est has created an increasing need for methods and techniques for the design of PRIP systems. PRIP involves analysis, classification and interpretation of data. Practical applications of PRIP include character recognition, re mote sensing, analysis of medical signals and images, fingerprint and face identification, target recognition and speech understanding. One difficulty in making PRIP systems practically feasible, and hence, more popularly used, is the requirement of computer time and storage. This situation is particularly serious when the patterns to be analyzed are quite complex. Thus it is of the utmost importance to investigate special comput er architectures and their implementations for PRIP. Since the advent of VLSI technology, it is possible to put thousands of components on one chip. This reduces the cost of processors and increases the processing speed. VLSI algorithms and their implementations have been recently developed for PRIP. This book is intended to document the recent major progress in VLSI system design for PRIP applications.
INGLÊS

Multiresolution Image Processing And Analysis

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book results from a Workshop on Multiresolution Image Processing and Analysis, held in Leesburg, VA on July 19-21, 1982. It contains updated ver- sions of most of the papers that were presented at the Workshop, as well as new material added by the authors.
INGLÊS

Probability, Statistical Optics, And Data Testing - A Problem Solving Approach

de Roy Frieden

171,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Scientists in optics are increasingly confronted with problems that are of a random nature and that require a working knowledge of probability and statistics for their solution. This textbook develops these subjects within the context of optics using a problem-solving approach.
INGLÊS

Self-Organizing Maps

de Teuvo Kohonen

264,34€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 The Self-Organizing Map (SOM), with its variants, is the most artificial neural network algorithm in the unsupervised learning category. This edition includes a survey of over 2000 contemporary studies to cover the results and provides the case examples with detailed formulae, illustrations and tables.
INGLÊS

3d Dynamic Scene Analysis - A Stereo Based Approach

de Olivier Faugeras e Zhengyou Zhang

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 A Stereo Based Approach.
INGLÊS

Discrete Hinfinity Optimization - With Applications In Signal Processing And Control Systems

de Charles K. Chui e Guanrong Chen

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Talks about optimization for digital signal processing and discrete-time control systems. Providing readers with sufficient background in the subject to enable them to begin research in this field, this book includes rigorous derivations of the results, many examples as well as the discussion of research problems.
INGLÊS

Maximum Entropy Method

de Nailong Wu

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Forty years ago, in 1957, the Principle of Maximum Entropy was first intro duced by Jaynes into the field of statistical mechanics. Since that seminal publication, this principle has been adopted in many areas of science and technology beyond its initial application. It is now found in spectral analysis, image restoration and a number of branches ofmathematics and physics, and has become better known as the Maximum Entropy Method (MEM). Today MEM is a powerful means to deal with ill-posed problems, and much research work is devoted to it. My own research in the area ofMEM started in 1980, when I was a grad uate student in the Department of Electrical Engineering at the University of Sydney, Australia. This research work was the basis of my Ph.D. the sis, The Maximum Entropy Method and Its Application in Radio Astronomy, completed in 1985. As well as continuing my research in MEM after graduation, I taught a course of the same name at the Graduate School, Chinese Academy of Sciences, Beijingfrom 1987to 1990. Delivering the course was theimpetus for developing a structured approach to the understanding of MEM and writing hundreds of pages of lecture notes.
INGLÊS

Few Steps Towards 3d Active Vision

de Thierry Vieville

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 <B>T. Viéville: A Few Steps Towards 3D Active Vision</B> appears as Vol. 33 in the <I>Springer Series in Information Sciences</I>. A specific problem in the field of active vision is analyzed, namely how suitable is it to explicitly use 3D visual cues in a reactive visual task? The author has collected a set of studies on this subject and has used these experimental and theoretical developments to propose a synthetic view on the problem, completed by some specific experiments. With this book scientists and graduate students will have a complete set of methods, algorithms, and experiments to introduce 3D visual cues in active visual perception mechanisms, e.g. autocalibration of visual sensors on robotic heads and mobile robots. Analogies with biological visual systems provide an easy introduction to this subject.
INGLÊS

Group-Theoretical Methods In Image Understanding

de Ken-Ichi Kanatani

79,49€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Image understanding is an attempt to extract knowledge about a 3D scene from 20 images. The recent development of computers has made it possible to automate a wide range of systems and operations, not only in the industry, military, and special environments (space, sea, atomic plants, etc.), but also in daily life. As we now try to build ever more intelligent systems, the need for "visual" control has been strongly recognized, and the interest in image under standing has grown rapidly. Already, there exists a vast body of literature-ranging from general philosophical discourses to processing techniques. Compared with other works, however, this book may be unique in that its central focus is on "mathematical" principles-Lie groups and group representation theory, in particular. In the study of the relationship between the 3D scene and the 20 image, "geometry" naturally plays a central role. Today, so many branches are inter woven in geometry that we cannot truly regard it as a single subject. Neverthe less, as Felix Klein declared in his Erlangen Program, the central principle of geometry is group theory, because geometrical concepts are abstractions of properties that are "invariant" with respect to some group of transformations. In this text, we specifically focus on two groups of transformations. One is 20 rotations of the image coordinate system around the image origin. Such coordi nate rotations are indeed irrelevant when we look for intrinsic image properties.
INGLÊS

Linear Systems And Optimal Control

de Charles K. Chui e Guanrong Chen

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 A knowledge of linear systems provides a firm foundation for the study of optimal control theory and many areas of system theory and signal processing. State-space techniques developed since the early sixties have been proved to be very effective. The main objective of this book is to present a brief and somewhat complete investigation on the theory of linear systems, with emphasis on these techniques, in both continuous-time and discrete-time settings, and to demonstrate an application to the study of elementary (linear and nonlinear) optimal control theory. An essential feature of the state-space approach is that both time-varying and time-invariant systems are treated systematically. When time-varying systems are considered, another important subject that depends very much on the state-space formulation is perhaps real-time filtering, prediction, and smoothing via the Kalman filter. This subject is treated in our monograph entitled "Kalman Filtering with Real-Time Applications" published in this Springer Series in Information Sciences (Volume 17). For time-invariant systems, the recent frequency domain approaches using the techniques of Adamjan, Arov, and Krein (also known as AAK), balanced realization, and oo H theory via Nevanlinna-Pick interpolation seem very promising, and this will be studied in our forthcoming monograph entitled "Mathematical Ap proach to Signal Processing and System Theory". The present elementary treatise on linear system theory should provide enough engineering and mathe of these two subjects.
INGLÊS

Physical And Biological Processing Of Images - Proceedings Of An International Symposium Organised By The Rank Prize Funds, London, England, 27-29 September, 1982

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book consists of papers presented at an international symposium spon sored and organised by The Rank Prize Funds and held at The Royal Society, London, on 27-29 September, 1982. Since the inception of the Funds, the Trustees and their Scientific Advi sory Committee on Opto-e1ectronics have considered that the scope of opto electronics should extend to cover the question of how the eye transduces and processes optical information. The Funds have aimed to organise symposia on topics which, because of their interdisciplinary nature, were not well cov ered by other regular international scientific meetings. It was therefore very appropriate that the 1982 symposium should be on Physical and Biologi cal Processing of Images. The purpose of the symposium was to bring together scientists working on the physiology and psychology of visual perception with those developing ma chine systems for image processing and understanding. The papers were planned in such a way as to emphasise questions of how image-analysing systems can be organised, as well as the principles underlying them, rather than the detailed biophysics and structure of sensory systems or the specific design of hardware devices. As far as possible, related topics in biological and artificial sys tems were considered side by side.
INGLÊS

Radon And Projection Transform-Based Computer Vision - Algorithms, A Pipeline Architecture, And Industrial Applications

de Anil K. Jain, Eric B. Hinkle e Jorge L.C. Sanz

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book deals with novel machine vision architecture ideas that make real-time projection-based algorithms a reality. The design is founded on raster-mode processing, which is exploited in a powerful and flexible pipeline. We concern ourselves with several image analysis algorithms for computing: projections of gray-level images along linear patterns (i. e. , the Radon transform) and other curved contours; convex hull approximations; the Hough transform for line and curve detection; diameters; moments and principal components, etc. Addition ally, we deal with an extensive list of key image processing tasks, which involve generating: discrete approximations of the inverse Radon transform operator; computer tomography reconstructions; two-dimensional convolutions; rotations and translations; multi-color digital masks; the discrete Fourier transform in polar coordinates; autocorrelations, etc. Both the image analysis and image processing algorithms are supported by a similar architecture. We will also of some of the above algorithms to the solution of demonstrate the applicability various industrial visual inspection problems. The algorithms and architectural ideas surveyed here unleash the power of the Radon and other non-linear transformations for machine vision applications. We provide fast methods to transform images into projection space representa tions and to backtrace projection-space information into the image domain. The novelty of this approach is that the above algorithms are suitable for implementa tion in a pipeline architecture. Specifically, random access memory and other dedicated hardware components which are necessary for implementation of clas sical techniques are not needed for our algorithms.
INGLÊS

Mathematics Of Kalman-Bucy Filtering

de Peter A. Ruymgaart e Tsu T. Soong

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Starting with applications in aerospace engineering, their impact has been felt not only in all areas of engineering but as all also in the social sciences, biological sciences, medical sciences, as well other physical sciences.
INGLÊS

Harmony: A Psychoacoustical Approach

de Richard Parncutt

145,09€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 My first encounter with the theory of harmony was during my last year at school (1975). This fascinating system of rules crystallized the intuitive knowledge of harmony I had acquired from years of piano playing, and facilitated memorization, transcription, arrangement and composition. For the next five years, I studied music (piano) and science (Physics) at the Univer sity of Melbourne. This "strange combination" started me wondering about the origins of those music theory "rules". To what extent were they determined or influenced by physics? mathematics? physiology? conditioning? In 1981, the supervisor of my honours project in musical acoustics, Neville Fletcher, showed me an article entitled "Pitch, consonance, and harmony", by a certain Ernst Terhardt of the Technical University of Munich. By that stage, I had devoured a considerable amount of (largely unsatisfactory) material on the nature and origins of harmony, which enabled me to recognize the significance of Terhardt''s article. But it was not until I arrived in Munich the following year (on Terhardt''s invitation) that I began to appreciate the conse quences of his "psychoacoustical" approach for the theory of harmony. That is what this book is about. The book presents Terhardt''s work against the broad context of music perception research, past and present. Music perception is a multidisciplinary mixture of physics, psychology and music. Where different theoretical ap proaches appear contradictory, I try to show instead that they complement and enrich one another.
INGLÊS

Pattern Analysis And Understanding

de Heinrich Niemann

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This text treats the problem of pattern analysis, that is, the automatic interpretation of sensor signals, in particular images, image sequences, and continuous speech. The emphasis of the book is on an integrated view. It is meant as an introductory text for researchers and students in this field.
INGLÊS

Linear Prediction Theory - A Mathematical Basis For Adaptive Systems

de Peter Strobach

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Lnear prediction theory and the related algorithms have matured to the point where they now form an integral part of many real-world adaptive systems. When it is necessary to extract information from a random process, we are frequently faced with the problem of analyzing and solving special systems of linear equations.
INGLÊS

Parallel Algorithms In Computational Science

de Anthony N. Burkitt e Dieter W. Heermann

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Aims to show physicists, mathematicians, chemists and biologists, who work with, or plan to work with parallel computers, how to make optimum use of the available parallelism when designing numerical simulations.
INGLÊS

Radar Array Processing

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This volume presents modern techniques and methods for processing radar signals received by an array of antenna elements. The topics covered include super-resolution methods of array signal processing, adaptive beaming forming and radar imaging.
INGLÊS

Theory Of Reconstruction From Image Motion

de Stephen Maybank

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 The image taken by a moving camera changes with time. These image motions contain information about the motion of the camera and about the shapes of the objects in the field of view. There are two main types of image motion, finite displacements and image velocities. Finite displacements are described by the point correspondences between two images of the same scene taken from different positions. Image velocities are the velocities of the points in the image as they move over the projection surface. Reconstruction is the task of obtaining from the image-motions information about the camera motion or about the shapes of objects in the field of view. In this book the theory underlying reconstruction is described. Reconstruction from image motion is the subject matter of two different sci entific disciplines, photogrammetry and computer vision. In photogrammetry the accuracy of reconstruction is emphasised; in computer vision the emphasis is on methods for obtaining information from images in real time in order to guide a mechanical device such as a robot arm or an automatic vehicle. This book arises from recent work carried out in computer vision. Computer vision is a young field but it is developing rapidly. The earliest papers on reconstruction in the computer vision literature date back only to the mid 1970s. As computer vision develops, the mathematical techniques applied to the analysis of recon struction become more appropriate and more powerful.
INGLÊS

Motion And Structure From Image Sequences

de Juyang Weng, Narendra Ahuja e Thomas S. Huang

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Motion and Structure from Image Sequences is invaluablereading for researchers, graduate students, and practicingengineers dealing with computer vision. It presents abalanced treatment of the theoretical and practical issues,including very recent results - some of which are publishedhere for the first time.The topics covered in detail are:- image matching and optical flow computation- structure from stereo- structure from motion- motion estimation- integration of multiple views- motion modeling and predictionAspects such as uniqueness of the solution, degeneracyconditions, error analysis, stability, optimality, androbustness are also investigated. These details togetherwith the fact that the algorithms are accessible withoutnecessarily studying the rest of the material, make thisbook particularly attractive to practitioners.
INGLÊS

Fundamentals Of Electronic Imaging Systems - Some Aspects Of Image Processing

de William F. Schreiber

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Deals with the analysis and design of imaging systems and image processing systems. The book demonstrates the importance of considering the mathematical, physical and perceptual phenomena simultaneously. The third edition includes chapters on colour and design of improved television systems.
INGLÊS

Fast Fourier Transform And Convolution Algorithms

de Henri J. Nussbaumer

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 In the first edition of this book, we covered in Chapter 6 and 7 the applications to multidimensional convolutions and DFT's of the transforms which we have introduced, back in 1977, and called polynomial transforms.
INGLÊS

Pitch Determination Of Speech Signals - Algorithms And Devices

de W. Hess

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Pitch (i.e., fundamental frequency FO and fundamental period TO) occupies a key position in the acoustic speech signal. The prosodic information of an utterance is predominantly determined by this parameter. The ear is more sensitive to changes of fundamental frequency than to changes of other speech signal parameters by an order of magnitude. The quality of vocoded speech is essentially influenced by the quality and faultlessness of the pitch measure ment. Hence the importance of this parameter necessitates using good and reliable measurement methods. At first glance the task looks simple: one just has to detect the funda mental frequency or period of a quasi-periodic signal. For a number of reasons, however, the task of pitch determination has to be counted among the most difficult problems in speech analysis. 1) In principle, speech is a nonstationary process; the momentary position of the vocal tract may change abruptly at any time. This leads to drastic variations in the temporal structure of the signal, even between subsequent pitch periods, and assuming a quasi-periodic signal is often far from realistic. 2) Due to the flexibility of the human vocal tract and the wide variety of voices, there exist a multitude of possible temporal structures. Narrow-band formants at low harmonics (especially at the second or third harmonic) are an additional source of difficulty. 3) For an arbitrary speech signal uttered by an unknown speaker, the fundamental frequency can vary over a range of almost four octaves (50 to 800 Hz).
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