@inproceedings{PB-VRVis-2016-022,
author = {Reichinger, Andreas and Maierhofer, Stefan and Fuhrmann, Anton and Purgathofer, Werner},
title = {Gesture-Based Interactive Audio Guide on Tactile Reliefs},
year = {2016},
booktitle = {Proceedings of the 18th International ACM SIGACCESS  Conference on Computers & Accessibility},
editor = {E. S. Axel and N. S. Levent},
doi = {10.1145/2982142.2982176},
url = {https://www.vrvis.at/publications/PB-VRVis-2016-022},
publisher = {ACM},
isbn = {978-1-4503-4124-0},
pages = {91--100},
abstract = {For blind and visually impaired people, tactile reliefs  offer many benefits over the more classic raised line drawings  or tactile diagrams, as depth, 3D shape and surface textures are  directly perceivable. However, without proper guidance some  reliefs are still difficult to explore autonomously.    In this work, we present a gesture-controlled interactive audio  guide (IAG) based on recent low-cost depth cameras that operates  directly on relief surfaces. The interactively explorable,  location-dependent verbal descriptions promise rapid tactile  accessibility to 2.5D spatial information in a home or education  setting, to on-line resources, or as a kiosk installation at  public places.    We present a working prototype, discuss design decisions and  present the results of two evaluation sessions with a total of  20 visually impaired test users.},
keywords = {blind users, evaluation, finger tracking, gesture
  detection, interactive audio guide, tactile reliefs},
}