LAPACK's user's guide
Introductory Digital Image Processing: A Remote Sensing Perspective
Introductory Digital Image Processing: A Remote Sensing Perspective
Clustering Algorithms
MPI: The Complete Reference
Remote Sensing Digital Image Analysis: An Introduction
Remote Sensing Digital Image Analysis: An Introduction
Fundamentals of Parallel Processing
Fundamentals of Parallel Processing
Parallel Programming in C with MPI and OpenMP
Parallel Programming in C with MPI and OpenMP
A shared memory parallel algorithm for data reduction using the singular value decomposition
Proceedings of the 2008 Spring simulation multiconference
A shared memory parallel algorithm for hybrid image classification
SpringSim '07 Proceedings of the 2007 spring simulation multiconference - Volume 2
A study of fuzzy clustering within the IGSCR framework
Proceedings of the 46th Annual Southeast Regional Conference on XX
Examining the potential parallel scalability of a fuzzy semi-supervised classification algorithm
SpringSim '09 Proceedings of the 2009 Spring Simulation Multiconference
Parallelism and scalability in an image processing application
International Journal of Parallel Programming
Parallelism and scalability in an image processing application
IWOMP'08 Proceedings of the 4th international conference on OpenMP in a new era of parallelism
An SMP soft classification algorithm for remote sensing
Proceedings of the 19th High Performance Computing Symposia
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This work presents a shared memory parallel version of the hybrid classification algorithm IGSCR (iterative guided spectral class rejection) to facilitate the transition from serial to parallel processing. This transition is motivated by a demonstrated need for more computing power driven by the increasing size of remote sensing data sets due to higher resolution sensors, larger study regions, and the like. Parallel IGSCR was developed to produce fast and portable code using Fortran 95, OpenMP, and the Hierarchical Data Format version 5 (HDF5) and accompanying data access library. The intention of this work is to provide an efficient implementation of the established IGSCR classification algorithm. The applicability of the faster parallel IGSCR algorithm is demonstrated by classifying Landsat data covering most of Virginia, USA into forest and non-forest classes with approximately 90% accuracy. Parallel results are given using the SGI Altix 3300 shared memory computer and the SGI Altix 3700 with as many as 64 processors reaching speedups of almost 77. Parallel IGSCR allows an analyst to perform and assess multiple classifications to refine parameters. As an example, parallel IGSCR was used for a factorial analysis consisting of 42 classifications of a 1.2GB image to select the number of initial classes (70) and class purity (70%) used for the remaining two images.