Now showing items 1-10 of 10

    • Adaptive temporal compressive sensing for video 

      Brady, David J; Carin, Lawrence; Liao, X; Llull, P; Sapiro, Guillermo; Yang, J; Yuan, X (2013 IEEE International Conference on Image Processing, ICIP 2013 - Proceedings, 2013-12-01)
      This paper introduces the concept of adaptive temporal compressive sensing (CS) for video. We propose a CS algorithm to adapt the compression ratio based on the scene's temporal complexity, computed from the compressed data, ...
    • Analytic-domain lens design with proximate ray tracing. 

      Brady, David J; Hagen, N; Zheng, N (J Opt Soc Am A Opt Image Sci Vis, 2010-08-01)
      We have developed an alternative approach to optical design which operates in the analytical domain so that an optical designer works directly with rays as analytical functions of system parameters rather than as discretely ...
    • Coded aperture compressive temporal imaging. 

      Brady, David J; Carin, Lawrence; Kittle, D; Liao, X; Llull, P; Sapiro, Guillermo; Yang, J; ... (8 authors) (Opt Express, 2013-05-06)
      We use mechanical translation of a coded aperture for code division multiple access compression of video. We discuss the compressed video's temporal resolution and present experimental results for reconstructions of > 10 ...
    • Compressive holography of diffuse objects. 

      Brady, David J; Choi, K; Hahn, J; Horisaki, R; Lim, S; Marks, Daniel L; Schulz, TJ (Appl Opt, 2010-12-01)
      We propose an estimation-theoretic approach to the inference of an incoherent 3D scattering density from 2D scattered speckle field measurements. The object density is derived from the covariance of the speckle field. The ...
    • Compressive sensing and adaptive sampling applied to millimeter wave inverse synthetic aperture imaging 

      Brady, David J; Everitt, Henry; Marks, Daniel L; Richard, JT; Zhu, R (Optics Express, 2017-02-06)
      © 2017 Optical Society of America.In order to improve speed and efficiency over traditional scanning methods, a Bayesian compressive sensing algorithm using adaptive spatial sampling is developed for single detector millimeter ...
    • Compressive video sensors using multichannel imagers. 

      Brady, David J; Pitsianis, NP; Shankar, M (Appl Opt, 2010-04-01)
      We explore the possibilities of obtaining compression in video through modified sampling strategies using multichannel imaging systems. The redundancies in video streams are exploited through compressive sampling schemes ...
    • Generalized sampling using a compound-eye imaging system for multi-dimensional object acquisition. 

      Brady, David J; Choi, K; Hahn, J; Horisaki, R; Tanida, J (Opt Express, 2010-08-30)
      In this paper, we propose generalized sampling approaches for measuring a multi-dimensional object using a compact compound-eye imaging system called thin observation module by bound optics (TOMBO). This paper shows the ...
    • Identification of fluorescent beads using a coded aperture snapshot spectral imager. 

      Brady, David J; Choi, K; Cull, CF; Oliver, T (Appl Opt, 2010-04-01)
      We apply a coded aperture snapshot spectral imager (CASSI) to fluorescence microscopy. CASSI records a two-dimensional (2D) spectrally filtered projection of a three-dimensional (3D) spectral data cube. We minimize a convex ...
    • Imaging through turbulence using compressive coherence sensing. 

      Brady, David J; Choi, K; Horisaki, R; Marks, Daniel L; Wagadarikar, AA (Opt Lett, 2010-03-15)
      Previous studies have shown that the isoplanatic distortion due to turbulence and the image of a remote object may be jointly estimated from the 4D mutual intensity across an aperture. This Letter shows that decompressive ...
    • Millimeter-wave compressive holography. 

      Brady, David J; Cull, CF; Mait, JN; Mattheiss, M; Wikner, DA (Appl Opt, 2010-07-01)
      We describe an active millimeter-wave holographic imaging system that uses compressive measurements for three-dimensional (3D) tomographic object estimation. Our system records a two-dimensional (2D) digitized Gabor hologram ...