The extraction and classification of significant points along a contour is fundamental to many imageprocessing tasks. In this paper, we present a simple process for extracting such points with several appealing prope...
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ISBN:
(纸本)0892525835
The extraction and classification of significant points along a contour is fundamental to many imageprocessing tasks. In this paper, we present a simple process for extracting such points with several appealing properties: the operation is developed in terms of contours which are represented discretely;it is completely local and hence suitable for real time operation vector or parallel processors;and it is tunable to extract significant points at different resolutions of orientation change along a contour. We also describe its use in linear feature extraction and processing restricted cases of environmental motion where the interest operator associates parameterized attributes with extracted image points. Matching features using these attributes allows for significant computational reductions over schemes based upon correlation matching without any loss of robustness, especially for such cases of restricted motion.
From the Publisher: The development of parallelprocessing, with the attendant technology of advanced software engineering, VLSI circuits, and artificial intelligence, now allows high-performance computer systems to r...
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ISBN:
(纸本)0262161001
From the Publisher: The development of parallelprocessing, with the attendant technology of advanced software engineering, VLSI circuits, and artificial intelligence, now allows high-performance computer systems to reach the speeds necessary to meet the challenge of future complex scientific and commercial applications. This collection of articles documents the design of one such computer, a single instruction multiple data stream (SIMD) class supercomputer with 16,834 processing units capable of over 6 billion 8 bit operations per second. It provides a complete description of the Massively parallel Processor (MPP), including discussions of hardware and software with special emphasis on applications, algorithms, and programming. This system with its massively parallel hardware and advanced software is on the cutting edge of parallelprocessing research, making possible AI, database, and imageprocessingapplications that were once thought to be inconceivable. The massively parallel processor represents the first step toward the large-scale parallelism needed in the computers of tomorrow. Orginally built for a variety of image-processing tasks, it is fully programmable and applicable to any problem with sizeable data demands. Contents: "History of the MPP," D. Schaefer; "Data Structures for Implementing the Classy Algorithm on the MPP," R. White; "Inversion of Positive Definite Matrices on the MPP," R. White; "LANDSAT-4 Thematic Mapper Data processing with the MPP," R. O. Faiss; "Fluid Dynamics Modeling," E. J. Gallopoulas; "Database Management," E. Davis; "List Based processing on the MPP," J. L. Potter; "The Massively parallel Processor System Overvew," K. E. Batcher; "Array Unit," K. ***; "Array Control Unit," K. E. Batcher; "Staging Memory," K. E. Batcher; "PE Design," J. Burkley; "Programming the MPP," J. L. Potter; "parallel Pascal and the MPP," A. P Reeves; "MPP System Software," K. E. Batcher; "MPP Program Development and Simulation," E. J. Gallopo
作者：
Price, Eugene V.Gould
Inc. DeAnza Imaging and Graphics Division 1870 Lundy Avenue San JoseCA95131 United States
A two-dimensional FFT algorithm has been implemented on a pipelined image processor with parallel feedback image data paths. The transform of a 512x512 pixel image, or say 256 images 32x32 pixels in size, can be carri...
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The proceedings contains 57 papers. The papers are grouped under the following session headings: pattern recognition;industrial applications;hardware and systems issues;modular configurations for multiple image format...
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ISBN:
(纸本)0892525398
The proceedings contains 57 papers. The papers are grouped under the following session headings: pattern recognition;industrial applications;hardware and systems issues;modular configurations for multiple image formats;analytical methods and concepts;enhancement and restoration;miscellaneous applications;and coding technology. Some of the specific topics discussed are: character image segmentation;novel method for the analysis of printed circuit images;quantitative analysis of microscope images;parallelprocessing of images in real time;and robust image matching algorithms.
The following topics are dealt with: scientific computation;distributed systems;interconnection;artificial intelligences;numeric computation;performance modeling;fault tolerance;imageprocessing;applications;queuing a...
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ISBN:
(纸本)081860560X
The following topics are dealt with: scientific computation;distributed systems;interconnection;artificial intelligences;numeric computation;performance modeling;fault tolerance;imageprocessing;applications;queuing analysis;databases;vector machines;theory;scheduling;computer networks;array computations;languages;matrix computations;algorithms;simulation;memory systems;and data flow. 89 papers were presented, of which all are published in full in the present proceedings.
The development of a CCD-based parallel analog processor is described. The single-instruction, multiple-data (SIMD) architecture allows substantial throughput improvements when compared to conventional serial image pr...
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ISBN:
(纸本)0892525363
The development of a CCD-based parallel analog processor is described. The single-instruction, multiple-data (SIMD) architecture allows substantial throughput improvements when compared to conventional serial imageprocessing hardware. The heart of the concept is a single-chip array of analog processing elements interconnected with a two-dimensional CCD shift register network. The same analog operation is performed on all cells simultaneously. The device shows great promise in medium resolution (100 multiplied by 100) applications (such as guided weapons and robotics) where it can be directly interfaced with a staring focal plane through bump interconnections.
A hardware architecture for real-time image resampling has been developed which will support a wide range of image resampling tasks arising in remote sensing applications-In particular, local spatial sampling errors c...
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A projection operator onto a closed convex set in Hilbert space is one of the few examples of a nonlinear map that can be defined in simple abstract terms. Moreover, it minimizes distance and is nonexpansive, and ther...
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The Dirichlet tessellation (DT) and the Voronoi diagram (VD) on a digitized picture plane, and their applications to imageprocessing are presented. The modified digital Dirichlet tessellation (MDDT) and the modified ...
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The Dirichlet tessellation (DT) and the Voronoi diagram (VD) on a digitized picture plane, and their applications to imageprocessing are presented. The modified digital Dirichlet tessellation (MDDT) and the modified digital Voronoi diagram (MDVD) are introduced anew as the counterparts of the DT and the VD defined for a finite set of connected components in a digitized binary picture. Two algorithms (a sequential type and a parallel type) are given to obtain the MDDT and MDVD. Characteristics of the MDDT, the MDVD, and the algorithms to determine them are discussed. Experimental results are shown for applications of the MDDT and the MDVD to imageprocessing, which include texture analysis of microscopic images of pathological samples and region division of chest x-ray images.
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