TY - GEN
T1 - Fast disambiguation of superimposed images for increased field of view
AU - Marcia, Roummel F.
AU - Kim, Changsoon
AU - Kim, Jungsang
AU - Brady, David J.
AU - Willett, Rebecca M.
PY - 2008
Y1 - 2008
N2 - Many infrared optical systems in wide-ranging applications such as surveillance and security frequently require large fields of view. Often this necessitates a focal plane array (FPA) with a large number of pixels, which, in general, is very expensive. In this paper, we propose a method for increasing the field of view without increasing the pixel resolution of the FPA by superimposing the multiple subimages within a scene and disambiguating the observed data to reconstruct the original scene. This technique, in effect, allows each subimage of the scene to share a single FPA, thereby increasing the field of view without compromising resolution. To disambiguate the subimages, we develop wavelet regularized reconstruction methods which encourage sparsity in the solution. We present results from numerical experiments that demonstrate the effectiveness of this approach.
AB - Many infrared optical systems in wide-ranging applications such as surveillance and security frequently require large fields of view. Often this necessitates a focal plane array (FPA) with a large number of pixels, which, in general, is very expensive. In this paper, we propose a method for increasing the field of view without increasing the pixel resolution of the FPA by superimposing the multiple subimages within a scene and disambiguating the observed data to reconstruct the original scene. This technique, in effect, allows each subimage of the scene to share a single FPA, thereby increasing the field of view without compromising resolution. To disambiguate the subimages, we develop wavelet regularized reconstruction methods which encourage sparsity in the solution. We present results from numerical experiments that demonstrate the effectiveness of this approach.
KW - Image reconstruction
KW - Image sampling
KW - Video cameras
UR - http://www.scopus.com/inward/record.url?scp=65649087010&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65649087010&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2008.4712331
DO - 10.1109/ICIP.2008.4712331
M3 - Conference contribution
AN - SCOPUS:65649087010
SN - 1424417643
SN - 9781424417643
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 2620
EP - 2623
BT - 2008 IEEE International Conference on Image Processing, ICIP 2008 Proceedings
T2 - 2008 IEEE International Conference on Image Processing, ICIP 2008
Y2 - 12 October 2008 through 15 October 2008
ER -