Progressive compressive imager

Sergei Evladov; Ofer Levi; Adrian Stern

doi:10.1117/12.920394

8 June 2012 Progressive compressive imager

Sergei Evladov, Ofer Levi, Adrian Stern

Proceedings Volume 8365, Compressive Sensing; 83650I (2012) https://doi.org/10.1117/12.920394
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

We have designed and built a working automatic progressive sampling imaging system based on the vector sensor concept, which utilizes a unique sampling scheme of Radon projections. This sampling scheme makes it possible to progressively add information resulting in tradeoff between compression and the quality of reconstruction. The uniqueness of our sampling is that in any moment of the acquisition process the reconstruction can produce a reasonable version of the image. The advantage of the gradual addition of the samples is seen when the sparsity rate of the object is unknown, and thus the number of needed measurements. We have developed the iterative algorithm OSO (Ordered Sets Optimization) which employs our sampling scheme for creation of nearly uniform distributed sets of samples, which allows the reconstruction of Mega-Pixel images. We present the good quality reconstruction from compressed data ratios of 1:20.

Citation Download Citation

Sergei Evladov, Ofer Levi, and Adrian Stern "Progressive compressive imager", Proc. SPIE 8365, Compressive Sensing, 83650I (8 June 2012); https://doi.org/10.1117/12.920394

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