24 May 2000 Pulsed vision chip with inhibitory interconnections
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Proceedings Volume 4089, Optics in Computing 2000; (2000) https://doi.org/10.1117/12.386868
Event: 2000 International Topical Meeting on Optics in Computing (OC2000), 2000, Quebec City, Canada
Abstract
This paper proposes and demonstrates a novel type of a vision chip that utilizes pulse trains for image processing. The chip is based on a pulse frequency modulation (PFM) technique, which is used in neurobiological systems. Two types of chips are designed; one is a pixel TEG (test element group) chip for testing availability of PFM for image acquisition using 0.35 micrometers triple-metal double-poly CMOS process and the other is for a vision chip with inhibitory interconnections using 1.2 micrometers double-metal double-poly CMOS process. The TEG chip works well in the power supply voltage of 0.7 V and has a dynamic range of 20 dB with a power consumption of less than 1 (mu) W. The operation of the mutual inhibition in the vision chip is confirmed by simulation. Also the comparison with the other pulse modulation technique, pulse width modulation is discussed.
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Jun Ohta, Jun Ohta, Akihiro Uehara, Akihiro Uehara, Takashi Tokuda, Takashi Tokuda, Masahiro Nunoshita, Masahiro Nunoshita, } "Pulsed vision chip with inhibitory interconnections", Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); doi: 10.1117/12.386868; https://doi.org/10.1117/12.386868
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