Estimating pixel variances in the scenes of staring sensors
Abstract
A technique for detecting changes in a scene perceived by a staring sensor is disclosed. The technique includes acquiring a reference image frame and a current image frame of a scene with the staring sensor. A raw difference frame is generated based upon differences between the reference image frame and the current image frame. Pixel error estimates are generated for each pixel in the raw difference frame based at least in part upon spatial error estimates related to spatial intensity gradients in the scene. The pixel error estimates are used to mitigate effects of camera jitter in the scene between the current image frame and the reference image frame.
- Inventors:
-
- Cedar Crest, NM
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1034623
- Patent Number(s):
- 8103116
- Application Number:
- 12/396,109
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Simonson, Katherine M, and Ma, Tian J. Estimating pixel variances in the scenes of staring sensors. United States: N. p., 2012.
Web.
Simonson, Katherine M, & Ma, Tian J. Estimating pixel variances in the scenes of staring sensors. United States.
Simonson, Katherine M, and Ma, Tian J. Tue .
"Estimating pixel variances in the scenes of staring sensors". United States. https://www.osti.gov/servlets/purl/1034623.
@article{osti_1034623,
title = {Estimating pixel variances in the scenes of staring sensors},
author = {Simonson, Katherine M and Ma, Tian J},
abstractNote = {A technique for detecting changes in a scene perceived by a staring sensor is disclosed. The technique includes acquiring a reference image frame and a current image frame of a scene with the staring sensor. A raw difference frame is generated based upon differences between the reference image frame and the current image frame. Pixel error estimates are generated for each pixel in the raw difference frame based at least in part upon spatial error estimates related to spatial intensity gradients in the scene. The pixel error estimates are used to mitigate effects of camera jitter in the scene between the current image frame and the reference image frame.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2012},
month = {Tue Jan 24 00:00:00 EST 2012}
}
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