Live demonstration: A low-power neuromorphic system for retinal implants and sensory substitution

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Title: Live demonstration: A low-power neuromorphic system for retinal implants and sensory substitution
Authors: Gaspar, N
Sondhi, A
Evans, B
Nikolic, K
Item Type: Conference Paper
Abstract: This demonstration shows a new type of front end for a Retinal Prosthesis/Vision Augmentation (RP/VA) System, as well as a Visual to Auditory Sensory Substitution Device (SSD). Each system serves to process visual scenes then present them in a simplified form (augmented with auditory signals) to assist visually impaired people. Both systems consist of three components: a sensory block to capture the visual scene, a processing block to manage the collected data and generate stimulus patterns, and an output block. Here we are presenting two possible setups. In both setups we use a “silicon retina” in the form of a Dynamic Vision Sensor (DVS) for the sensory block. In the hardware implementation, the processing block consists of a microcontroller, with an additional circuit for visual to audio conversion. The result of the visual processing is presented on an LED-matrix, while the SSD (audio) output can be heard on stereo headphones. In the second setup the processing block is an Android device, running an application called SounDVS. This solution also outputs both audio and video signals. The systems represent wearable, low-power, real-time solutions for receiving and processing video input and creating simplified outputs containing the most salient information about the visual scene.
Issue Date: 24-Oct-2015
Date of Acceptance: 22-Jun-2015
Publisher: IEEE
Journal / Book Title: Biomedical Circuits and Systems Conference (BioCAS), 2015 IEEE
Copyright Statement: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Wellcome Trust
Biotechnology and Biological Sciences Research Cou
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/H024581/1
Conference Name: BioCAS 2015
Publication Status: Published
Start Date: 2015-10-22
Finish Date: 2015-10-24
Conference Place: Atlanta, GA
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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