{"title":"Defocussing estimation for obstacle detection on single camera smartphone Assisted navigation for vision impaired people","authors":"Alessandro Grassi, C. Guaragnella","doi":"10.1109/INISTA.2014.6873636","DOIUrl":null,"url":null,"abstract":"An efficient application has been developed to detect close obstacles using a single smartphone camera and give speech information to vision impaired people. The proposed algorithm uses a simple technique aimed at measuring the local estimated image defocussing to roughly estimate its closeness to the camera. Preliminary results of the developing system are presented.","PeriodicalId":339652,"journal":{"name":"2014 IEEE International Symposium on Innovations in Intelligent Systems and Applications (INISTA) Proceedings","volume":"64 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE International Symposium on Innovations in Intelligent Systems and Applications (INISTA) Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INISTA.2014.6873636","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
An efficient application has been developed to detect close obstacles using a single smartphone camera and give speech information to vision impaired people. The proposed algorithm uses a simple technique aimed at measuring the local estimated image defocussing to roughly estimate its closeness to the camera. Preliminary results of the developing system are presented.
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