TY - JOUR
T1 - Automated feature generation in large-scale geospatial libraries for content-based indexing
AU - Tobin, Kenneth W.
AU - Bhaduri, Budhendra L.
AU - Bright, Eddie A.
AU - Cheriyadat, Anil
AU - Karnowski, Thomas P.
AU - Palathingal, Paul J.
AU - Potok, Thomas E.
AU - Price, Jeffery R.
PY - 2006/5
Y1 - 2006/5
N2 - We describe a method for indexing and retrieving high-resolution image regions in large geospatial data libraries. An automated feature extraction method is used that generates a unique and specific structural description of each segment of a tessellated input image file. These tessellated regions are then merged into similar groups, or sub-regions, and indexed to provide flexible and varied retrieval in a query-by-example environment. The methods of tessellation, feature extraction, sub-region clustering, indexing, and retrieval are described and demonstrated using a geospatial library representing a 153 km2 region of land in East Tennessee at 0.5 m per pixel resolution.
AB - We describe a method for indexing and retrieving high-resolution image regions in large geospatial data libraries. An automated feature extraction method is used that generates a unique and specific structural description of each segment of a tessellated input image file. These tessellated regions are then merged into similar groups, or sub-regions, and indexed to provide flexible and varied retrieval in a query-by-example environment. The methods of tessellation, feature extraction, sub-region clustering, indexing, and retrieval are described and demonstrated using a geospatial library representing a 153 km2 region of land in East Tennessee at 0.5 m per pixel resolution.
UR - http://www.scopus.com/inward/record.url?scp=33744902835&partnerID=8YFLogxK
U2 - 10.14358/PERS.72.5.531
DO - 10.14358/PERS.72.5.531
M3 - Article
AN - SCOPUS:33744902835
SN - 0099-1112
VL - 72
SP - 531
EP - 540
JO - Photogrammetric Engineering and Remote Sensing
JF - Photogrammetric Engineering and Remote Sensing
IS - 5
ER -