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Fast SIMD-parallel execution units are available in most modern microprocessors. They provide an internal parallelism degree in the range from 2 to 16 and can accelerate many data-parallel algorithms. In this paper the suitability of ve diierent SIMD units (Intel's MMX and SSE, AMD's 3DNow!, Motorola's AltiVec and Sun's VIS) for the simulation of neural(More)
We propose an object detection algorithm which is efficient and fast enough to be used in (almost) real time with the limited computer capacities onboard satellites. For stars below the saturation limit of the CCD detectors it is based on a four neighbourhood local maximum criterion in order to find the centre of a stellar image. For saturated stars it is(More)
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