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Full-Text Articles in Engineering
Region-Based Approach For Single Image Super-Resolution, Min Zhang
Region-Based Approach For Single Image Super-Resolution, Min Zhang
Electrical & Computer Engineering Theses & Dissertations
Single image super-resolution (SR) is a technique that generates a high- resolution image from a single low-resolution image [1,2,10,11]. Single image super- resolution can be generally classified into two groups: example-based and self-similarity based SR algorithms. The performance of the example-based SR algorithm depends on the similarity between testing data and the database. Usually, a large database is needed for better performance in general. This would result in heavy computational cost. The self-similarity based SR algorithm can generate a high-resolution (HR) image with sharper edges and fewer ringing artifacts if there is sufficient recurrence within or across scales of the …
Performance Modeling And Enhancement For The Atamm Data Flow Architecture, Sukhamoy Som
Performance Modeling And Enhancement For The Atamm Data Flow Architecture, Sukhamoy Som
Electrical & Computer Engineering Theses & Dissertations
Algorithm To Architecture Mapping Model (ATAMM) is a new marked graph model from which the rules for data and control flow in a homogeneous, multicomputer, data flow architecture may be defined. This research is concerned with performance modeling and performance enhancement for periodic execution of large-grain, decision-free algorithms in such an ATAMM defined architecture. Performance measures and bounds are established. Algorithm transformation techniques are identified for performance enhancement and reduction of computing element requirements. Operating strategies are developed for optimum time performance and for sub-optimum time performance under limited availability of computing elements. An ATAMM simulator is used to test …
Implementation And Performance Analysis Of Numerical Algorithms On The Mpp, Flex/32, And Cray/2, Raad A. Fatoohi
Implementation And Performance Analysis Of Numerical Algorithms On The Mpp, Flex/32, And Cray/2, Raad A. Fatoohi
Electrical & Computer Engineering Theses & Dissertations
This dissertation presents the results of the implementation of a number of numerical algorithms on three parallel/vector computers. The object of this research is to determine how well, or poorly, a number of numerical algorithms would map onto three different architectures and to analyze the performance of these architectures using these algorithms. These algorithms are: a relaxation scheme for the solution of the Cauchy-Riemann equations, an ADI method for the solution of the diffusion equation, and a compact difference scheme for the solution of two-dimensional Navier-Stokes equations. The computers were chosen so as to encompass a variety of architectures. They …