Analysis and synthesis of double-layer MOSFET networks for smart sensory systems

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Analysis and synthesis of double-layer MOSFET networks for smart sensory systems

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An analysis method to find the natural response of double-layer planar lattice networks is found and its stability discussed. Following the proposed approach, a new circuit able to perform feature extraction at the sensory level by means of a convolution with a Gabor-like kernel is synthesised. The circuit, based on MOS transistors working in the subthreshold region, has been simulated and successfully compared with theoretical expectations. Its main features are the compactness, low-power and full programmability of the convolutional kernel.

Inspec keywords: image processing equipment; network analysis; VLSI; analogue processing circuits; convolution; image sensors; CMOS analogue integrated circuits; circuit stability; network synthesis; feature extraction; intelligent sensors

Other keywords: Gabor-like kernel; programmability; analysis method; feature extraction; planar lattice networks; natural response; subthreshold region; smart sensory systems; low-power operation; convolution; synthesis method; stability; double-layer MOSFET networks

Subjects: Analogue processing circuits; Image sensors; CMOS integrated circuits; Optical information, image and video signal processing; Pattern recognition and computer vision equipment; General circuit analysis and synthesis methods; Analogue circuits

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