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Face recognition in mobile devices
2010 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Recent technological advancements have made face recognition a very viable identification and verification technique and one reason behind its popularity is the non-intrusive nature of image acquisition. A photo can be acquired easily without the person even being aware of the process. The interest in biometrics by several governments for identifying possible criminals or verifying users for access control is steadily increasing. Other industries are also finding uses for face recognition techniques such as in entertainment systems and for robots that interact with humans. Mobile phones are constantly improving and the majority are currently equipped with a digital camera. This facilitates taking a large amount of photos every day with a camera phone instead of a stand-alone digital camera. Using face recognition techniques on these images makes it possible to perform so called face tagging to tag images with the names of the photographed persons. This is convenient for sorting photos, creating albums or retrieving images of only a specific person. Having a stand-alone mobile application on the phone that performs these face recognition tasks on recently captured images is an interesting concept. The system can be trained on a set of images containing faces to become capable of automatically recognizing a person from the training set. However, many users have up to hundreds or even thousands of images on their mobile phones and training a system on the phone is prohibitively time-consuming on such devices today. Instead, face recognition can be performed on the client using already trained data transferred from a computer (server). This approach shows promising results and very good success rates. This article covers several methods that can improve results by making the system more robust.

Place, publisher, year, edition, pages
Keyword [en]
Technology, Faces, recognition, images, processing, tagging, mobile, devices, phones
Keyword [sv]
URN: urn:nbn:se:ltu:diva-56768ISRN: LTU-EX--10/040--SELocal ID: d84096bf-1b53-44fd-a06c-df79d13c1998OAI: diva2:1030155
Subject / course
Student thesis, at least 30 credits
Educational program
Media Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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