We present a scheme for macropipelining in multicomputer systems to achieve high speeds in processing multiple images. Most imageprocessingapplications consist of a sequence of tasks - - e.g., preprocessing, detecti...
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作者:
Waltz, Frederick M.3M Company
Engineering Systems and Technology Laboratories 3M Center Building 518-1-01 Saint PaulMN55144 United States
The median filter is one widely-used member of the class of ranked-intensity filters. Such filters are useful in signal processing, and particularly in machine vision, because they effectively remove an important and ...
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In this paper we report on a system that incorporates laser ranging data with reflectance data for improved performance in an object recognition task. A new laser diode-based radar array developed at Perkin-Elmer prov...
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The decreasing cost of computing power and the introduction of low cost imaging boards justifies the increasing number of applications of digital imageprocessing techniques in the area of biomedicine. There is howeve...
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Current digital imaging modalities in the medical field incorporate parallel hardware which is heavily used in the stage of image formation like the CT/MR image reconstruction or in the DSA real time subtraction. In o...
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Future radiology departments with DIN/PACS will likely contain many different workstations developed by independent imageprocessing vendors. However, radiologists and other users of the workstations should not be for...
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Future radiology departments with DIN/PACS will likely contain many different workstations developed by independent imageprocessing vendors. However, radiologists and other users of the workstations should not be forced to learn more than one interface to DIN/PACS: the same imageprocessing, data base management and networking commands should be usable from any workstation or network node on the system. In addition, programmers of this consistent user interface should not have to concern themselves with the intricacies of each workstation on the system. Rather, they should be able to select functions from a workstation library which manipulates the image display in (as much as possible) a device-independent manner. Previously we have introducted a MUlti-process Virtual image Processor (MUVIP) software architecture for maximizing imageprocessingapplications code portability [1]. applications programs generate device-independent imageprocessing commands, or "metacode," which is passed to a separate process called an Autonomous Virtual image Processor (AVIP). Thus, in order to transport an applications program to a new image processor, it is necessary only to create a new AVIP corresponding to that processor. In this sense each applications program is "totally portable." since transferring it to a new device does not require either re-compilation or re-linking of the applications program itself. In this paper, we consider implementations of the MUVIP architecture on two hosts, and its application to three image processors. A test function set was created, and a consistent user interface for those functions was developed for each combination of host and image processor. The image processor used by each program was selectable at run time, and in the case of one program, two image processors could be used together in a cooperative mode, providing more capability than either could achieve alone. The raw interprocess communication overhead of MUVIP was measured, and its
A broad area of applications for processing and analysis of medical images can be found with images that are not computer generated, such as radiographic or cytological images. Success when processing and analysing th...
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Data base archive system (DBAS) for picture archiving and communication systems (PACS) require very large storage systems. The storage systems must be high speed and must be very inteligent in order to handle requests...
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systems built around TRW's image Resampling Sequencer (IRS) chip can rapidly pan, zoom, rotate, warp, and filter two-dimensional images, compute 2-D sections through 3-D images, and filter 3-D image databases. The...
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Modern sonars relay more upon visual rather than aural contacts. Lofargrams presenting a time history of hydrophone spectral content are standard means of observing narrowband signals. However, the frequency signal &q...
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