A Three-Frame Algorithm for Estimating Two-Component Image Motion
IEEE Transactions on Pattern Analysis and Machine Intelligence
Separation of Transparent Layers using Focus
International Journal of Computer Vision
Probabilistic geometric approach to blind separation of time-varying mixtures
ICA'07 Proceedings of the 7th international conference on Independent component analysis and signal separation
Sparse source separation of non-instantaneous spatially varying single path mixtures
ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part IV
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We address the problem of separating position-varying mixtures of images. Such mixtures occur, for example, when a reflection is superimposed on a desired image by placing a semi-reflector in the optical pathway. Non-uniform light sources and/or a curved semi-reflector create a mixing system which is a function of the spatial coordinates. We use a staged sparse component analysis (SSCA) approach, in which the images are sparsified as a preprocessing stage. The mixing system is estimated in the first stage and the inverse problem is solved, in the second stage. We deal with three major types of position-varying mixing systems that encompass interesting applications. We implement our approach and illustrate its applications in separation of images.