DigiTaps

Azenkot, Shiri; Bennett, Cynthia L.; Ladner, Richard E.

doi:10.1145/2501988.2502056

Cited by 24 publications

(4 citation statements)

References 26 publications

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“…A simple comparison between ABTKA and other similar systems, ABTKA doesn't make users stick to points placed by the designer like BrailleTouch and it allows the user to touch the screen dynamically in the position he is more comfortable with. Unlike Digitaps (Azenkot, et al, 2013), ABTKA supports typing digits and alphabets. Another advantage is that ABTKA is considered faster than BrailleType, since the user can make one touch interaction with the required fingers at the same time in order to type.…”

Section: Experimental Results and Evaluationmentioning

confidence: 99%

“…The main goal was to develop methods which are better suited for a particular person rather than a group. Azenkot, et al (2013) presented Digitaps, it is a number-entry method on touch screen devices developed for the visually impaired people; it supports audio feedback as an optional choice. Users who are willing to use Digitaps will have to learn a new typing technique which Figure 4.…”

Section: Related Workmentioning

confidence: 99%

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Arabic Braille Touch Keyboard for Android Users

Hewahi

Abu-Shaban

El-Ashqer

et al. 2014

International Journal of Technology Diffusion

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As smart phones appeared with their elegant, easy and exciting touch functionality, the use of touch screen devices has been spreading very fast. Beside the previous advantages, smart phones addresses some new challenges for people with disabilities. Most of visually impaired people don't prefer using touch-screen devices, as these lack the tactile feedback and are visually demanding. However, there have been some solutions to come over these problems, but they were not enough. Some of these solutions is to connect a special equipment to a smart phone to allow the visually impaired user to enter the required input. Other applications help visually impaired people to use the smart phones and read whatever on the screen by hovering their finger tips on the text. Visually impaired people who use smart phones have to memorize QWERTY keyboard which have a large number of targets with small locations specified for each target which will lead to a high proportion of error occurrence. In this paper, the authors propose ABTKA- Arabic Braille Touch Keyboard for Android Users. This application is the first application for Arabic language that uses Braille language for visually impaired who are using smart phones or intended to do so. ABTKA facilitates text-entry functionality by supporting Braille writing on touch screens. The used approach in the proposed system can be easily adapted to other languages. The main advantages of the used approach are that it does not need any extra equipment to be connected to the smart phone; it is dynamic (no fixed positions for the touch points), simple to use, one entry for each character, supported by voice and respond promptly to the input. ABTKA involves various algorithms to achieve its objectives. It starts with entering the user standard locations of finger tips, then the user can enter any Braille character which has to be reindexed to be in the same order of Perkins Brailler's buttons. Any inserted character is converted to Arabic character. Any converted character will have a voice feedback. Words and full sentences will also have voice feedback. ABTKA has been tested by various visually impaired people and proved that it is easy to learn and simple to use.

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Section: Experimental Results and Evaluationmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Arabic Braille Touch Keyboard for Android Users

Hewahi

Abu-Shaban

El-Ashqer

et al. 2014

International Journal of Technology Diffusion

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“…BrailleTouch [26] allowed users to enter Braille characters using three fingers on each hand and offered a significant speed advantage over standard touchscreen braille keyboards. For the task of number entry, DigiTaps [3] encoded different gestures to the ten numeric digits. These gestures required a varying number of fingers to tap, swipe, or both.…”

Section: Software-based Touchscreen Assistive Technologiesmentioning

confidence: 99%

Interactiles

Zhang

Tran

Sun

et al. 2018

Proceedings of the 20th International ACM SIGACCESS Conference on Computers and Accessibility

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The absence of tactile cues such as keys and buttons makes touchscreens difficult to navigate for people with visual impairments. Increasing tactile feedback and tangible interaction on touchscreens can improve their accessibility. However, prior solutions have either required hardware customization or provided limited functionality with static overlays. Prior investigation of tactile solutions for large touchscreens also may not address the challenges on mobile devices. We therefore present Interactiles, a low-cost, portable, and unpowered system that enhances tactile interaction on Android touchscreen phones. Interactiles consists of 3D-printed hardware interfaces and software that maps interaction with that hardware to manipulation of a mobile app. The system is compatible with the built-in screen reader without requiring modification of existing mobile apps. We describe the design and implementation of Interactiles, and we evaluate its improvement in task performance and the user experience it enables with people who are blind or have low vision.

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“…For people who use screen readers (e.g., VoiceOver for iOS, TalkBack for Android), finding and activating buttons in a spatial layout can be time consuming. Eyes-free solutions for accessible numeric input include Tapulator (gesture-based numeric input) [6], DigiTaps (minimal audio feedback for numeric input) [2], and BrailleTap (Braille-based gesture calculator) [1]. We demonstrate GestureCalc, an eyes-free target-less gesture-based touch screen calculator.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of GestureCalc

Perlmutter

Chaudhuri

Petelka

et al. 2019

The 21st International ACM SIGACCESS Conference on Computers and Accessibility

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Keypad-based character input in existing digital calculator applications on touch screen devices requires precise, targeted key presses that are time-consuming and error-prone for many screen reader users. We demonstrate GestureCalc, a digital calculator that uses target-free gestures for arithmetic tasks. It allows eyes-free target-less input of digits and operations through taps and directional swipes with one to three fingers, guided by minimal audio feedback. A study of the effectiveness of GestureCalc for screen reader users appears in a full paper by the authors at this conference [3]. CCS Concepts •Human-centered computing → Accessibility technologies; •Hardware → Touch screens; •Social and professional topics → People with disabilities;

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DigiTaps

Cited by 24 publications

References 26 publications

Arabic Braille Touch Keyboard for Android Users

Arabic Braille Touch Keyboard for Android Users

Interactiles

Demonstration of GestureCalc

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