Texas Two-Step: A Framework for Optimal Multi-Input Single-Output Deconvolution

  • Authors:
  • R. N. Neelamani;M. Deffenbaugh;R. G. Baraniuk

  • Affiliations:
  • ExxonMobil Upstream Res. Co., Houston;-;-

  • Venue:
  • IEEE Transactions on Image Processing
  • Year:
  • 2007

Quantified Score

Hi-index 0.01

Visualization

Abstract

Multi-input single-output deconvolution (MISO-D) aims to extract a deblurred estimate of a target signal from several blurred and noisy observations. This paper develops a new two step framework-Texas two-step-to solve MISO-D problems with known blurs. Texas two-step first reduces the MISO-D problem to a related single-input single-output deconvolution (SISO-D) problem by invoking the concept of sufficient statistics (SSs) and then solves the simpler SISO-D problem using an appropriate technique. The two-step framework enables new MISO-D techniques (both optimal and suboptimal) based on the rich suite of existing SISO-D techniques. In fact, the properties of SSs imply that a MISO-D algorithm is mean-squared-error optimal if and only if it can be rearranged to conform to the Texas two-step framework. Using this insight, we construct new wavelet- and curvelet-based MISO-D algorithms with asymptotically optimal performance. Simulated and real data experiments verify that the framework is indeed effective.