{ "id": "2210.03495", "version": "v1", "published": "2022-10-07T12:30:41.000Z", "updated": "2022-10-07T12:30:41.000Z", "title": "Total Variation-Based Reconstruction and Phase Retrieval for Diffraction Tomography with an Arbitrarily Moving Object", "authors": [ "Robert Beinert", "Michael Quellmalz" ], "categories": [ "math.NA", "cs.NA" ], "abstract": "We consider the imaging problem of the reconstruction of a three-dimensional object via optical diffraction tomography under the assumptions of the Born approximation. Our focus lies in the situation that a rigid object performs an irregular, time-dependent rotation under acoustical or optical forces. In this study, we compare reconstruction algorithms in case i) that two-dimensional images of the complex-valued wave are known, or ii) that only the intensity (absolute value) of these images can be measured, which is the case in many practical setups. The latter phase-retrieval problem can be solved by an all-at-once approach based utilizing a hybrid input-output scheme with TV regularization.", "revisions": [ { "version": "v1", "updated": "2022-10-07T12:30:41.000Z" } ], "analyses": { "subjects": [ "42B05", "47J06", "65T50", "92C55" ], "keywords": [ "total variation-based reconstruction", "arbitrarily moving object", "phase retrieval", "rigid object performs", "hybrid input-output scheme" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }