igapsearch: using phone cameras to search around the world

ISCAS OpenIR

	igapsearch: using phone cameras to search around the world
	Wang Jiemin; He Yuanhai; Zhou Yujie; Qiao Yu
	2011
会议名称	2011 International Conference on Information and Automation, ICIA 2011
会议录名称	2011 IEEE International Conference on Information and Automation, ICIA 2011
页码	823-828
会议日期	June 6, 2011 - June 8, 2011
会议地点	Shenzhen, China
收录类别	EI
ISBN	9781457702686
部门归属	(1) Shenzhen Institutes of Advanced Technology Chinese Academy of Science Shenzhen 518055 China; (2) Chinese University of Hong Kong Hong Kong Hong Kong; (3) Software Institute Nanjing University Nanjing Jiangsu Province China
摘要	This paper proposes and implement an iGAPSearch System (GPS Aided Photo Search System) to identify buildings through their photos captured by phone cameras. User need to take a picture of the building he/she wants to know with Android phone and upload the picture to our system. The system returns name and introduction on the buildings. We use SIFT features and the bag of features method to represent and recognize building images. Four distance methods are compared to estimate the distance between query image and those in database, namely L1-norm, L2-norm, KL-divergence and χ² distance. We calculated ROC curves to compare these methods. Experimental results exhibit that χ² distance has the best performance. Our system is fast enough for realtime application and its accuracy is satisfactory under the experimental environment. © 2011 IEEE.; This paper proposes and implement an iGAPSearch System (GPS Aided Photo Search System) to identify buildings through their photos captured by phone cameras. User need to take a picture of the building he/she wants to know with Android phone and upload the picture to our system. The system returns name and introduction on the buildings. We use SIFT features and the bag of features method to represent and recognize building images. Four distance methods are compared to estimate the distance between query image and those in database, namely L1-norm, L2-norm, KL-divergence and χ² distance. We calculated ROC curves to compare these methods. Experimental results exhibit that χ² distance has the best performance. Our system is fast enough for realtime application and its accuracy is satisfactory under the experimental environment. © 2011 IEEE.
关键词	Cameras Safety Devices Telephone Sets Telephone Systems
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16312
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Wang Jiemin,He Yuanhai,Zhou Yujie,et al. igapsearch: using phone cameras to search around the world[C],2011:823-828.