Title
ALPS: accurate landmark positioning at city scales.
Abstract
Context awareness is crucial for ubiquitous computing, and position is an important aspect of context. In an ideal world, every stationary object or entity in the built environment would be associated with position, so that applications can have precise spatial context about the environment surrounding a human. In this paper, we take a step towards this ideal: by analyzing images from Google Street View that cover different perspectives of a given object and triangulating the location of the object, our system, ALPS, can discover and localize common landmarks at the scale of a city accurately and with high coverage. ALPS contains several novel techniques that help improve the accuracy, coverage, and scalability of localization. Evaluations of ALPS on many cities in the United States show that it can localize storefronts with a coverage higher than 90% and a median error of 5 meters.
Year
DOI
Venue
2016
10.1145/2971648.2971674
UbiComp
Keywords
Field
DocType
Context-aware computing, Landmark localization system, Machine/Deep learning
Built environment,Computer science,Context awareness,Human–computer interaction,Ubiquitous computing,Spatial contextual awareness,Landmark,Scalability
Conference
Citations 
PageRank 
References 
2
0.36
30
Authors
4
Name
Order
Citations
PageRank
Yitao Hu160.79
Xiaochen Liu21610.79
Suman Nath32907164.98
ramesh govindan4154302144.86