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Efficient Telescopic Search Motion-Estimation Architecture Based on Data-Flow Optimization
Wujian ZHANG Runde ZHOU Tsunehachi ISHITANI Ryota KASAI Toshio KONDO
IEICE TRANSACTIONS on Electronics
Publication Date: 2001/03/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Integrated Electronics
motion estimation, telescopic search, systolic array, latency, low-power,
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The ring-like systolic array architecture described in this paper, based on a conventional one-dimensional systolic array architecture, was created through operator rescheduling based on the symmetry of data flow. This eliminated high-latency delay due to the stuffing of the array pipeline in the conventional architecture. The new architecture requires a memory bandwidth no greater than the conventional architecture does, but increases throughput and processor utilization while reducing power consumption.