Shearlet Transform: a Good Candidate for Compressed Sensing in Optical Coherence Tomography

Lesley-Ann Duflot 1 Alexandre Krupa 1 Brahim Tamadazte 2 Nicolas Andreff 2
1 Lagadic - Visual servoing in robotics, computer vision, and augmented reality
CRISAM - Inria Sophia Antipolis - Méditerranée , Inria Rennes – Bretagne Atlantique , IRISA-D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
Abstract : — This paper deals with the development of a fast and smart acquisition technique of Optical Coherence Tomography (OCT) data that has the capability to reconstruct missing data of OCT image. The main objective is to reduce the acquisition time (i.e., increase the frame rate) of an OCT-scan system by choosing a trajectory that covers entirely the image but that does not take all the measurements. The reconstruction of the missing data is achieved by applying an updated Fast Iterative Soft-Thresholding Algorithm (FISTA) on a sparse representation of the image. Several sparse representations have been tested and the shearlets-based approach seems to outperform the other ones (e.g. wavelets, curvelets and by applying bilinear interpolation). The targeted application is a fast OCT imaging solution allowing an efficient compensation of the artefacts induced by the patient physiological motions for diagnostic purpose through optical biopsies (3D micrometric resolution optical images). The obtained results seem promising in terms of low time processing and improvement of the quality of the reconstructed image compared to the traditional sparse acquisition.
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Communication dans un congrès
IEEE Int. Conf. on Engineering in Medicine and Biology Society, EMBC'16, Aug 2016, Orlando, United States. pp.435-438
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Lesley-Ann Duflot, Alexandre Krupa, Brahim Tamadazte, Nicolas Andreff. Shearlet Transform: a Good Candidate for Compressed Sensing in Optical Coherence Tomography. IEEE Int. Conf. on Engineering in Medicine and Biology Society, EMBC'16, Aug 2016, Orlando, United States. pp.435-438. 〈hal-01355488〉

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