A Demonstration of the iCARE Portable Reader
Terri Hedgpeth, John A. Black, Jr., Sethuraman Panchanathan · 2006 · Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '06) · doi:10.1145/1168987.1169054
Summary
This paper presents the portable iCARE Reader, an assistive device developed at Arizona State University that allows people who are blind or visually impaired to read printed text more naturally and conveniently than existing flatbed scanner-based reading systems. The project began with a user-centred approach: the research team engaged four focus groups — blind consumers, disability studies researchers, blindness and visual impairment professionals, and assistive technology manufacturers/distributors — to identify what users actually want. Focus groups revealed that while flatbed scanner reading systems with text-to-speech output have existed for two decades, they are cumbersome and unnatural to use. Opening a book, placing it face-down on a scanner, and turning pages one at a time is tedious and contrary to how anyone naturally reads. The iCARE project conceived of using a digital camera instead of a flatbed scanner to capture text images, and developed a three-phase roadmap: a table-top iCARE Reader (Phase 1, completed and deployed in educational institutions), a portable iCARE Reader (Phase 2, the focus of this demonstration), and a wearable iCARE Reader (Phase 3). The portable version uses an 8-megapixel digital camera mounted on a pedestal support 12 inches above a capture surface, connected to a small laptop via USB, and powered by AC or battery.
Key findings
The portable iCARE Reader successfully addressed the main usability complaints about flatbed scanners by allowing users to read books face-up in a natural position, simply turning pages as they read. The device includes a "use and throw mode" for quickly reading incidental materials like flyers and textbooks without needing to save files, as well as navigation features for longer documents including table of contents access, page number announcements when turning pages, text highlighting and extraction, a skimming mode, and "bread crumb" landmarks for later navigation. The entire system — camera, pedestal, reading surface, and laptop — fits in a laptop bag for portability between office, class, and home. The paper introduces the BATE (Beyond Accessibility to Efficiency) principle, inspired by a focus group participant who said: "It's just not fair that my sighted wife can walk into a Barnes-&-Noble bookstore, pick up a book, and start reading it on her way home that same afternoon." BATE asserts that assistive technologies should not merely provide access to print but should enable a user with a disability to perform tasks with the same efficiency as anyone else. Two blind consumers were testing the prototype and providing feedback at the time of publication.
Relevance
The iCARE Reader project illustrates several important principles for assistive technology design. The BATE principle — that assistive technology should aim for efficiency parity, not just basic access — challenges the field to set higher design goals. Too often, assistive solutions are considered successful if they merely make a task possible, without considering whether the effort required is reasonable compared to the non-disabled experience. The user-centred methodology of starting with focus groups rather than engineering assumptions is also instructive: the entire camera-based approach emerged from listening to what blind consumers actually found frustrating about existing solutions. For practitioners, this paper is a reminder that accessibility goes beyond making information technically available — the manner and efficiency of access matters significantly for real-world usability and user satisfaction.
Tags: blindness · visual impairment · OCR · assistive technology · reading systems · portable devices · user-centered design · wearable technology