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To ensure safe and reliable guidance, many research efforts focus on improving the localization accuracy of such instruments. However, even when the localization is accurate, imprecision in conveying guidance instructions to the user and in following the instructions can still lead to unrecoverable navigation errors. Even slight errors during rotations, amplified by the following frontal movement, can result in the user taking an incorrect and possibly dangerous path.<\/jats:p>\n          <jats:p>\n            In this article, we analyze trajectories of indoor travels in four different environments, showing that rotation errors are frequent in state-of-art navigation assistance for people with visual impairments. Such errors, caused by the delay between the instruction to stop rotating and when the user actually stops, result in\n            <jats:italic>over-rotation<\/jats:italic>\n            . To compensate for over-rotation, we propose a technique to anticipate the stop instruction so that the user stops rotating closer to the target rotation. The technique predicts over-rotation using a deep learning model that takes into account the user\u2019s current rotation speed, duration, and angle; the model is trained with a dataset of rotations performed by blind individuals. By analyzing existing datasets, we show that our approach outperforms a naive baseline that predicts over-rotation with a fixed value. Experiments with 11 blind participants also show that the proposed compensation method results in lower rotation errors (18.8\u00b0 on average) compared to the non-compensated approach adopted in state-of-the-art solutions (30.1\u00b0).\n          <\/jats:p>","DOI":"10.1145\/3349264","type":"journal-article","created":{"date-parts":[[2019,12,16]],"date-time":"2019-12-16T13:12:30Z","timestamp":1576501950000},"page":"1-19","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["Deep Learning Compensation of Rotation Errors During Navigation Assistance for People with Visual Impairments or Blindness"],"prefix":"10.1145","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5745-1230","authenticated-orcid":false,"given":"Dragan","family":"Ahmetovic","sequence":"first","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano, Milano, Italy"}]},{"given":"Sergio","family":"Mascetti","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano, Milano, Italy"}]},{"given":"Cristian","family":"Bernareggi","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano, Milano, Italy"}]},{"given":"Jo\u00e3o","family":"Guerreiro","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University, Pittsburgh, PA, USA"}]},{"given":"Uran","family":"Oh","sequence":"additional","affiliation":[{"name":"Ewha Womans University, Pittsburgh, Seodaemun-gu, Seoul, South Korea"}]},{"given":"Chieko","family":"Asakawa","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University, Pittsburgh, PA, USA"}]}],"member":"320","published-online":{"date-parts":[[2019,12,16]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1145\/2899475.2899482"},{"key":"e_1_2_1_2_1","first-page":"265","article-title":"Perceiving and representing orientation: Effects of the spatial framework","volume":"23","author":"Abravanel Eugene","year":"1977","unstructured":"Eugene Abravanel and Herbert Gingold . 1977 . 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