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Title: Estimating pixel variances in the scenes of staring sensors

Patent ·
OSTI ID:1034623

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.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,103,116
Application Number:
12/396,109
OSTI ID:
1034623
Country of Publication:
United States
Language:
English

References (5)

Motion detection with an unstable camera conference October 2008
Principal component background suppression conference January 1996
Analysis of advantages and disadvantages of scene registration as part of space-time processing conference May 1996
Statistical background subtraction using spatial cues journal December 2007
Image change detection algorithms: a systematic survey journal March 2005