Estimating vehicle height using homographic projections
Abstract
Multiple homography transformations corresponding to different heights are generated in the field of view. A group of salient points within a common estimated height range is identified in a time series of video images of a moving object. Inter-salient point distances are measured for the group of salient points under the multiple homography transformations corresponding to the different heights. Variations in the inter-salient point distances under the multiple homography transformations are compared. The height of the group of salient points is estimated to be the height corresponding to the homography transformation that minimizes the variations.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1087842
- Patent Number(s):
- 8487993
- Application Number:
- 12/511,362
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 47 OTHER INSTRUMENTATION
Citation Formats
Cunningham, Mark F, Fabris, Lorenzo, Gee, Timothy F, Ghebretati, Jr., Frezghi H, Goddard, James S, Karnowski, Thomas P, and Ziock, Klaus-peter. Estimating vehicle height using homographic projections. United States: N. p., 2013.
Web.
Cunningham, Mark F, Fabris, Lorenzo, Gee, Timothy F, Ghebretati, Jr., Frezghi H, Goddard, James S, Karnowski, Thomas P, & Ziock, Klaus-peter. Estimating vehicle height using homographic projections. United States.
Cunningham, Mark F, Fabris, Lorenzo, Gee, Timothy F, Ghebretati, Jr., Frezghi H, Goddard, James S, Karnowski, Thomas P, and Ziock, Klaus-peter. Tue .
"Estimating vehicle height using homographic projections". United States. https://www.osti.gov/servlets/purl/1087842.
@article{osti_1087842,
title = {Estimating vehicle height using homographic projections},
author = {Cunningham, Mark F and Fabris, Lorenzo and Gee, Timothy F and Ghebretati, Jr., Frezghi H and Goddard, James S and Karnowski, Thomas P and Ziock, Klaus-peter},
abstractNote = {Multiple homography transformations corresponding to different heights are generated in the field of view. A group of salient points within a common estimated height range is identified in a time series of video images of a moving object. Inter-salient point distances are measured for the group of salient points under the multiple homography transformations corresponding to the different heights. Variations in the inter-salient point distances under the multiple homography transformations are compared. The height of the group of salient points is estimated to be the height corresponding to the homography transformation that minimizes the variations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 16 00:00:00 EDT 2013},
month = {Tue Jul 16 00:00:00 EDT 2013}
}
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