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In this paper we present an implementation of an asynchronous cellular processor array that facilitates binary trigger-wave propagations, extensively used in various image processing algorithms. The circuit operates in a continuous-time mode, achieving high operational performance and low power consumption. A 24 times 60 proof-of-concept array integrated circuit has been fabricated in a 0.35 mum 3-metal CMOS process and tested. Occupying only 16 times 8 mum2 the binary wave-propagation cell is used as a coprocessor in a general-purpose processor-per-pixel array that is designed for focal-plane image processing. The results of global operations such as object reconstruction and hole filling are presented.
Date of Conference: 27-30 Aug. 2007