Digital Signal Processing Is Everywhere, It Is Pervasive And Ubiquitous. Its Methodologies Are Evolving And Spreading Its Wings Into Many Exciting New Directions Such As Networking, Bioinformatics, Digital Security And Forensics, And Spoken Language. As A Technology, It is a Phantom Technology Which Is Working From Behind The Scenes To Make Most Of Modern Day Devices Work. Designed For Both Undergraduate And Post Graduate Courses, This Book Provides A Comprehensive Insight Into The Linear Algebra And Optimization View Of Signal Processing That Can Be Readily Extended To Advanced Image Processing, Wavelet Theory And Compressive Sensing. This Book Shows How The Entire Class Of Problems In Signal And Image Processing Can Be Put In A Linear Algebra And Optimization Framework.
K. P. Soman and Dr. Ramanathan R., Digital Signal and Image Processing-The Sparse Way, 1stEditionst ed. Elsevier India, 2012, p. 480.