@misc{GreweZachow, author = {Grewe, Carl Martin and Zachow, Stefan}, title = {Face to Face-Interface}, series = {+ultra. Knowledge \& Gestaltung}, journal = {+ultra. Knowledge \& Gestaltung}, editor = {Doll, Nikola and Bredekamp, Horst and Sch{\"a}ffner, Wolfgang}, publisher = {Seemann Henschel}, pages = {320 -- 321}, language = {en} } @inproceedings{GreweZachow, author = {Grewe, Carl Martin and Zachow, Stefan}, title = {Fully Automated and Highly Accurate Dense Correspondence for Facial Surfaces}, series = {Computer Vision - ECCV 2016 Workshops}, volume = {9914}, booktitle = {Computer Vision - ECCV 2016 Workshops}, publisher = {Springer International Publishing}, doi = {10.1007/978-3-319-48881-3_38}, pages = {552 -- 568}, abstract = {We present a novel framework for fully automated and highly accurate determination of facial landmarks and dense correspondence, e.g. a topologically identical mesh of arbitrary resolution, across the entire surface of 3D face models. For robustness and reliability of the proposed approach, we are combining 2D landmark detectors and 3D statistical shape priors with a variational matching method. Instead of matching faces in the spatial domain only, we employ image registration to align the 2D parametrization of the facial surface to a planar template we call the Unified Facial Parameter Domain (ufpd). This allows us to simultaneously match salient photometric and geometric facial features using robust image similarity measures while reasonably constraining geometric distortion in regions with less significant features. We demonstrate the accuracy of the dense correspondence established by our framework on the BU3DFE database with 2500 facial surfaces and show, that our framework outperforms current state-of-the-art methods with respect to the fully automated location of facial landmarks.}, language = {en} } @misc{WilsonBuecherGreweetal., author = {Wilson, David and B{\"u}cher, Pia and Grewe, Carl Martin and Anglin, Carolyn and Zachow, Stefan and Michael, Dunbar}, title = {Validation of Three Dimensional Models of the Distal Femur Created from Surgical Navigation Point Cloud Data}, series = {15th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery (CAOS)}, journal = {15th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery (CAOS)}, language = {en} } @article{GreweSchreiberZachow, author = {Grewe, Carl Martin and Schreiber, Lisa and Zachow, Stefan}, title = {Fast and Accurate Digital Morphometry of Facial Expressions}, series = {Facial Plastic Surgery}, volume = {31}, journal = {Facial Plastic Surgery}, number = {05}, publisher = {Thieme Medical Publishers}, address = {New York}, doi = {10.1055/s-0035-1564720}, pages = {431 -- 438}, language = {en} } @misc{GreweLameckerZachow2013, author = {Grewe, Carl Martin and Lamecker, Hans and Zachow, Stefan}, title = {Landmark-based Statistical Shape Analysis}, series = {Auxology - Studying Human Growth and Development url}, journal = {Auxology - Studying Human Growth and Development url}, editor = {Hermanussen, Michael}, publisher = {Schweizerbart Verlag, Stuttgart}, pages = {199 -- 201}, year = {2013}, language = {en} } @misc{WilsonBuecherGreweetal., author = {Wilson, David and B{\"u}cher, Pia and Grewe, Carl Martin and Mocanu, Valentin and Anglin, Carolyn and Zachow, Stefan and Dunbar, Michael}, title = {Validation of Three Dimensional Models of the Distal Femur Created from Surgical Navigation Data}, series = {Orthopedic Research Society Annual Meeting}, journal = {Orthopedic Research Society Annual Meeting}, address = {Las Vegas, Nevada}, language = {en} } @misc{GreweLameckerZachow2011, author = {Grewe, Carl Martin and Lamecker, Hans and Zachow, Stefan}, title = {Digital morphometry: The Potential of Statistical Shape Models}, series = {Anthropologischer Anzeiger. Journal of Biological and Clinical Anthropology}, journal = {Anthropologischer Anzeiger. Journal of Biological and Clinical Anthropology}, pages = {506 -- 506}, year = {2011}, language = {en} } @misc{EhlkeHeylandMaerdianetal., author = {Ehlke, Moritz and Heyland, Mark and M{\"a}rdian, Sven and Duda, Georg and Zachow, Stefan}, title = {Assessing the Relative Positioning of an Osteosynthesis Plate to the Patient-Specific Femoral Shape from Plain 2D Radiographs}, issn = {1438-0064}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-54268}, abstract = {We present a novel method to derive the surface distance of an osteosynthesis plate w.r.t. the patient­specific surface of the distal femur based on 2D X­ray images. Our goal is to study from clinical data, how the plate­to­bone distance affects bone healing. The patient­specific 3D shape of the femur is, however, seldom recorded for cases of femoral osteosynthesis since this typically requires Computed Tomography (CT), which comes at high cost and radiation dose. Our method instead utilizes two postoperative X­ray images to derive the femoral shape and thus can be applied on radiographs that are taken in clinical routine for follow­up. First, the implant geometry is used as a calibration object to relate the implant and the individual X­ray images spatially in a virtual X­ray setup. In a second step, the patient­specific femoral shape and pose are reconstructed in the virtual setup by fitting a deformable statistical shape and intensity model (SSIM) to the images. The relative positioning between femur and implant is then assessed in terms of displacement between the reconstructed 3D shape of the femur and the plate. A preliminary evaluation based on 4 cadaver datasets shows that the method derives the plate­to­bone distance with a mean absolute error of less than 1mm and a maximum error of 4.7 mm compared to ground truth from CT. We believe that the approach presented in this paper constitutes a meaningful tool to elucidate the effect of implant positioning on fracture healing.}, language = {en} } @article{TaylorPoepplauKoenigetal.2011, author = {Taylor, William R. and P{\"o}pplau, Berry M. and K{\"o}nig, Christian and Ehrig, Rainald and Zachow, Stefan and Duda, Georg and Heller, Markus O.}, title = {The medial-lateral force distribution in the ovine stifle joint during walking}, series = {Journal of Orthopaedic Research}, volume = {29}, journal = {Journal of Orthopaedic Research}, number = {4}, doi = {10.1002/jor.21254}, pages = {567 -- 571}, year = {2011}, language = {en} } @misc{GreweZachow, author = {Grewe, C. Martin and Zachow, Stefan}, title = {Release of the FexMM for the Open Virtual Mirror Framework}, doi = {10.12752/8532}, abstract = {THIS MODEL IS FOR NON-COMMERCIAL RESEARCH PURPOSES. ONLY MEMBERS OF UNIVERSITIES OR NON-COMMERCIAL RESEARCH INSTITUTES ARE ELIGIBLE TO APPLY. 1. Download, fill, and sign the form available from: https://media.githubusercontent.com/media/mgrewe/ovmf/main/data/fexmm_license_agreement.pdf 2. Send the signed form to: fexmm@zib.de NOTE: Use an official email address of your institution for the request.}, language = {en} }