A cooperative algorithm for extracting disparity information from stereo image pairs has been implemented on the NCUBE hypercube *** is written in C-langauge, using communication routines of the “Crystalline Operatin...
ISBN:
(纸本)9780897912785
A cooperative algorithm for extracting disparity information from stereo image pairs has been implemented on the NCUBE hypercube *** is written in C-langauge, using communication routines of the “Crystalline Operating System” CrOSIII designed at caltech within the caltech concurrent computation program. Some tests have been done using Julesz's random-dot *** the software is reasonably versatile and can be easily adapted for different flavors of stereo algorithms, the method used is that presented by Marr and Poggio [REF.1].As a preliminary stage for the stereo matching problem, a “filtering” program to extract physically meaningful primitives from images of a given scene has been written and tested on various types of images.
This paper describes ASPAR (Automatic and Symbolic PARallelization) which consists of a source-to-source parallelizer and a set of interactive graphic tools. While the issues of data dependency have already been explo...
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A new numerical approach by Furmanski and Kolawa to quantum chromodynamics is based on diagonalizing the underlying Hamiltonian. This method involves the generation of states by repeated action of a potential operator...
ISBN:
(纸本)9780897912785
A new numerical approach by Furmanski and Kolawa to quantum chromodynamics is based on diagonalizing the underlying Hamiltonian. This method involves the generation of states by repeated action of a potential operator. This symbolic calculation is dominated by the time it takes to search the database of existing states to verify if a generated state is identical to one previously found. We implement this algorithm on the caltech/JPL Mark II hypercube and analyze its performance of both a simple database search and one optimized for this application. We show that the hypercube performance can be modelled in a fashion similar to conventional numerical (loosely synchronous) applications.
Three approaches to programming concurrent computers are described, with attention focused on MIMD machines. These approaches involve the user preparing: the whole program; large-grain objects; and fine-grain objects....
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Three approaches to programming concurrent computers are described, with attention focused on MIMD machines. These approaches involve the user preparing: the whole program; large-grain objects; and fine-grain objects. Four architectures (two homogeneous and two hierarchical) are considered.< >
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