Trinetra aims for cost-effective, assistive technologies to provide blind people with a greater degree of independence in their daily activities. The overall objective is to improve the quality of life for the blind by harnessing the collective capability of diverse networked embedded devices to support grocery shopping, transportation, etc. This paper describes our research and development of the Trinetra system, a barcode-based solution comprising COTS components, such as an Internet- and Bluetooth-enabled cell phone, text-to-speech software and a portable barcode reader. We describe our experiences with the first deployment of Trinetra at the Carnegie Mellon University’s campus store, Entropy.
Patrick E. Lanigan, Aaron M. Paulos, Andrew W. Wil