Logo recognition for image-based indoor positioning systems on mobile devices

Shiuan Shiang Wang, Pei Hsuan Tsai, Wei Shuo Li

研究成果: Conference contribution


Image recognition techniques have been widely used in positioning systems in recent years. By recognizing the objects targeted by users' camera, one can decide the users' location. In this paper, a mobile indoor positioning system based on the image recognition techniques is implemented for shopping malls. We recognize the stores by their logos, and then use the location of the stores to locate the users. The image recognition method includes extracting local features from the image, calculating the Bag-of-Word structure through a pre-trained hierarchical clustering tree, and using cosine similarity to make the comparison between the training images and the query images. Though SIFT and SURF are the most extensively used local feature detectors and descriptors in the field, the limitations of mobile devices make them infeasible due to their high computational complexity. Moreover, both SIFT and SURF are patent-protected and are not free modules in OpenCV4Android, which will cause additional cost. Therefore, in this paper, we attempt to adopt features that exclude SIFT and SURF. By analyzing the precision and speed of pairwise mashup of feature detectors and descriptors, we target to find the most suitable pair of algorithms to be used on mobile devices. In this paper, the Global Mall at Hsinchu, Taiwan, is used as a scenario for the actual test.

主出版物標題Proceedings of the ASE BigData and SocialInformatics 2015, ASE BD and SI 2015
發行者Association for Computing Machinery
出版狀態Published - 2015 十月 7
事件ASE BigData and SocialInformatics, ASE BD and SI 2015 - Kaohsiung, Taiwan
持續時間: 2015 十月 72015 十月 9


名字ACM International Conference Proceeding Series


OtherASE BigData and SocialInformatics, ASE BD and SI 2015

All Science Journal Classification (ASJC) codes

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

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