21-12-2012, 05:35 PM
Outdoors Augmented Reality on Mobile Phone using Loxel-Based Visual Feature Organization
Outdoors Augmented Reality.ppt (Size: 9.66 MB / Downloads: 191)
Feature Descriptor Clustering
Match all images in loxel
Form graph on features
Cut graph into clusters
Create representative meta-features
Database Feature Pruning
Rank images by number of meta-features
Allocate equal budget for each landmark
Fill budget with meta-features by rank
Fill any remaining budget with single features
Conclusions
Image matching on mobile phone
Use loxels to reduce search space
27x reduction in data sent to phone
Clustering
Pruning
Compression
~3 seconds for image matching on N95