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Linear Algebra for Pattern Processing: Projection, Singular Value Decomposition, and Pseudoinverse (Synthesis Lectures on Signal Processing) (Paperback)


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Linear Algebra for Pattern Processing: Projection, Singular Value Decomposition, and Pseudoinverse (Synthesis Lectures on Signal Processing) Cover Image


Linear algebra is one of the most basic foundations of a wide range of scientific domains, and most textbooks of linear algebra are written by mathematicians. However, this book is specifically intended to students and researchers of pattern information processing, analyzing signals such as images and exploring computer vision and computer graphics applications. The author himself is a researcher of this domain.

Such pattern information processing deals with a large amount of data, which are represented by high-dimensional vectors and matrices. There, the role of linear algebra is not merely numerical computation of large-scale vectors and matrices. In fact, data processing is usually accompanied with geometric interpretation. For example, we can think of one data set being orthogonal to another and define a distance between them or invoke geometric relationships such as projecting some data onto some space. Such geometric concepts not only help us mentally visualize abstract high-dimensional spaces in intuitive terms but also lead us to find what kind of processing is appropriate for what kind of goals.

First, we take up the concept of projection of linear spaces and describe spectral decomposition, singular value decomposition, and pseudoinverse in terms of projection. As their applications, we discuss least-squares solutions of simultaneous linear equations and covariance matrices of probability distributions of vector random variables that are not necessarily positive definite. We also discuss fitting subspaces to point data and factorizing matrices in high dimensions in relation to motion image analysis. Finally, we introduce a computer vision application of reconstructing the 3D location of a point from three camera views to illustrate the role of linear algebra in dealing with data with noise. This book is expected to help students and researchers of pattern information processing deepen the geometric understanding of linear algebra.

Product Details
ISBN: 9781636391076
ISBN-10: 1636391079
Publisher: Morgan & Claypool
Publication Date: April 30th, 2021
Pages: 155
Language: English
Series: Synthesis Lectures on Signal Processing