A head-mounted, image transceiver-based, low vision aid
| Autor: | P. Nater, I. Baal Zedaka, Ofer Levy, Boris Apter, Uzi Efron, I. David, Nonel Thirer, A. Ben-Guigui |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
CMOS sensor
Engineering Liquid-crystal display business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Optical head-mounted display General Medicine Chip law.invention Liquid crystal on silicon law Digital image processing Computer vision Artificial intelligence Transceiver business Field-programmable gate array Computer hardware |
| Zdroj: | International Congress Series. 1282:512-516 |
| ISSN: | 0531-5131 |
| Popis: | A mobile, head-mounted low vision aid is critically needed for the vision impaired. We report here on a new effort centered around a unique Image Transceiver Device (ITD) combining both functions of imaging and display in a single CMOS chip. The device will allow a compact design of a low vision goggle in which the imager part will capture the input imagery. Following the processing of the latter by a wearable computer, the processed imagery will be generated by the display part of the device and rerouted using appropriate optics, to the healthy part of the subject's retina. The present design of the ITD device is based on a LCOS (Liquid Crystal on Silicon) micro-display and an APS (Active Pixel Sensor) imager technology, in which the front side LCD (Liquid Crystal Display) and the back-illuminated imager are integrated onto a single silicon substrate. The device design effort includes the chip as well as the FPGA (Field Programmable Gate Array) system controller. In addition to the ITD development, the present effort also includes the studies of the goggle's imaging transfer function modeling, a low vision model, image processing algorithms adapted for this system as well as an optical design study of the low vision goggle. |
| Databáze: | OpenAIRE |
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