![]() ![]() The nemeth braille code for mathematics and science notation: 1972 revision. Similarity of tactual and visual picture recognition with limited field of view. In Haptics Symposium (HAPTICS), 2012 IEEE, pages 1-5. Adaptive level of detail in dynamic, refreshable tactile graphics. Visual mediation and the haptic recognition of two-dimensional pictures of common objects. Journal of Visual Impairment and Blindness, 97(2):85-96, 2003. Use of the talking tactile tablet in mathematics testing. Haptic identification of objects and their depictions. Tactual picture identification by blind and sighted people: Effects of providing categorical information. The optacon: A valuable device for blind persons. Journal of Experimental Psychology: Learning, Memory, and Cognition, 37(3):621, 2011. Functional equivalence of spatial images from touch and vision: Evidence from spatial updating in blind and sighted individuals. In Computers helping people with special needs, pages 1243-1250. Scientific diagrams made easy with iveotm. International Society for Optics and Photonics, 2009. In SPIE Smart Structures and Materials+ Nondestructive Evaluation and Health Monitoring, pages 72871K-72871K. Application of eap materials toward a refreshable braille display. Tactile letter recognition: Pattern duration and modes of pattern generation. ![]() Vibrotactile pattern perception: Extraordinary observers. Biomimetics: Nature-Based Innovation, 2011. Refreshable braille displays (rbds) actuated by electroactive polymers (eap). The scope of this automated transcription platform is not only limited to STEM books but it can be used for transcription of any content/book/web-page available on-line. Using our automated transcription platform it is easy, fast and inexpensive for publishers to transcribe STEM books into braille books. Learning resources for blind people are quite sparse and transcription of STEM material is a very expensive and time consuming process. Using these touch gestures and a high quality synthetic voice, we have developed a highly responsive system for providing voice annotations of the graphics content.Īn important contribution of this work is the implementation of a high-quality system for automatic transcription of STEM (including difficult math Nemeth translations) books into braille. We also implemented a touch gesture recognition framework on our touch enabled braille device. Along with zooming and panning, our system uses vibrating patterns, rhythmic motions, synthetic voice and synchronized voiced-vibrations to convey information to blind users in an intuitive way. Previous studies have shown that the use of zoom and pan can increase usability and improve the understanding of tactile graphics. In addition to that, to further augment usability and intuitiveness of our system, we have integrated a nod-ring, which is a tiny finger-worn device for supporting additional hand gestures such as zoom in and out. Using this XY gantry enables us to create an ultrahigh resolution, larger surface braille device without paying the prohibitive price charged for the bigger hyper Braille displays available in the market. We have come up with a novel way to increase the effective resolution of the braille device by adding a mechanical XY gantry. We present an intuitive and interactive platform to make complex STEM (Science Technology Engineering and Mathematics) educational materials accessible to blind and visually impaired people using a mini-hyperbraille device with almost no loss of information as compared to printed materials. ![]()
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