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Barcode Reading This page contains notes about work done in Summer 2002 on barcode signal processing. This project was supported and supervised by Dr. Fadil Santosa of the Minnesota Center for Industrial Mathematics (MCIM) at the University of Minnesota. Work was done in collaboration with Selim Esedoglu, a postdoctoral researcher at the Institute for Math and its Applications (IMA), also at the University of Minnesota. The .m files below are executable files for Matlab 5.0 or higher. A Brief Introduction to Barcodes The UPC Barcode Noise and Denoising Files: upc2signal.m , make_noisy.m Signal Denoising Using Otsu's Algorithm on Peak Strengths Files: otsu.m Total Variation (TV) Minimization The TV Norm Steepest Descent Minimization Numerical Results Files: descent.m , J_fun3.m Evolutionary Minimization The Genetic Algorithm Numerical Results Barcode Derivative Test Files Todd Wittman, University of Minnesota, Summer 2002 IMA Postdoctoral Associate: Selim Esedoglu, Institute for Math and its Applications Academic Supervisor: Fadil Santosa, University of Minnesota