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  1. Book ; Online: Handbook of Digital Face Manipulation and Detection

    Rathgeb, Christian / Tolosana, Ruben / Vera-Rodriguez, Ruben / Busch, Christoph

    From DeepFakes to Morphing Attacks

    (Advances in Computer Vision and Pattern Recognition)

    2022  

    Author's details edited by Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez, Christoph Busch
    Series title Advances in Computer Vision and Pattern Recognition
    Keywords Biometric identification ; Image processing—Digital techniques ; Computer vision ; Data protection ; Image processing
    Subject code 006.248
    Language English
    Size 1 Online-Ressource (IX, 487 p. 173 illus., 162 illus. in color)
    Edition 1st ed. 2022
    Publisher Springer International Publishing ; Imprint: Springer
    Publishing place Cham
    Document type Book ; Online
    HBZ-ID HT021216721
    ISBN 978-3-030-87664-7 ; 9783030876630 ; 9783030876654 ; 9783030876661 ; 3-030-87664-0 ; 3030876632 ; 3030876659 ; 3030876667
    DOI 10.1007/978-3-030-87664-7
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online: Handbook of Digital Face Manipulation and Detection : From DeepFakes to Morphing Attacks

    Rathgeb, Christian / Tolosana, Ruben / Vera-Rodriguez, Ruben / Busch, Christoph

    2022  

    Keywords Pattern recognition ; Computer vision ; Computer security ; Imaging systems & technology ; DeepFakes ; Face Manipulation Detection ; Media Forensic ; Biometric Recognition ; Image Processing and Pattern Recognition ; Open Access
    Size 1 electronic resource (487 pages)
    Publisher Springer Nature
    Publishing place Cham
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021290433
    ISBN 9783030876647 ; 3030876640
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Book ; Online: Soziale Marktwirtschaft in der digitalen Zukunft

    Holtmannspötter, Dirk / Heimeshoff, Ulrich / Haucap, Justus / Loebert, Ina / Busch, Christoph / Hoffknecht, Andreas

    Foresight-Bericht - Strategischer Vorausschauprozess des BMWi

    (Wettbewerb und Regulierung von Märkten und Unternehmen ; 56)

    2023  

    Series title Wettbewerb und Regulierung von Märkten und Unternehmen ; 56
    Keywords KCB ; artificial intelligence ; BMWK ; competition economics ; Digitalisierung ; Foresight-Methodik ; economic policy
    Language German
    Size 1 electronic resource (441 pages)
    Publisher Nomos Verlagsgesellschaft mbH and Company KG
    Publishing place Baden-Baden
    Document type Book ; Online
    Note German
    HBZ-ID HT030381216
    ISBN 9783848787999 ; 3848787997
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  4. Book ; Online: Handbook of Vascular Biometrics

    Uhl, Andreas / Busch, Christoph / Marcel, Sébastien / Veldhuis, Raymond

    (Advances in Computer Vision and Pattern Recognition)

    2020  

    Author's details edited by Andreas Uhl, Christoph Busch, Sébastien Marcel, Raymond Veldhuis
    Series title Advances in Computer Vision and Pattern Recognition
    Keywords Biometrics (Biology) ; Computer security ; User interfaces (Computer systems) ; Informatik ; Biometrie ; Benutzeroberfläche
    Subject Benutzungsoberfläche ; Bedienoberfläche ; Dialogschnittstelle ; Bedieneroberfläche ; User Interface ; Biometrics (Identification) ; Biometrik ; Biometric person authentication ; Biometric Technology ; Biometrische Identifikation ; Computerwissenschaft
    Subject code 570.15195
    Language English
    Size 1 Online-Ressource (XVIII, 533 p. 197 illus., 149 illus. in color)
    Edition 1st ed. 2020
    Publisher Springer International Publishing ; Imprint: Springer
    Publishing place Cham
    Document type Book ; Online
    HBZ-ID HT020300399
    ISBN 978-3-030-27731-4 ; 9783030277307 ; 9783030277321 ; 9783030277338 ; 3-030-27731-3 ; 3030277305 ; 3030277321 ; 303027733X
    DOI 10.1007/978-3-030-27731-4
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  5. Book ; Online: Handbook of Vascular Biometrics

    Uhl, Andreas / Busch, Christoph / Marcel, Sébastien / Veldhuis, Raymond

    2020  

    Keywords Computer security ; Pattern recognition ; User interface design & usability ; Computer science ; Biometrics (Biology) ; User interfaces (Computer systems)
    Size 1 electronic resource (533 pages)
    Publisher Springer Nature
    Publishing place Cham
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021027444
    ISBN 978-3-030-27731-4 ; 3-030-27731-3
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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    Order via subito

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    Inter-library loan at ZB MED

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  6. Book: Viszeralchirurgie

    Busch, Christoph / Hartel, Wilhelm

    Quellen, Entwicklung, Status

    2001  

    Author's details Wilhelm Hartel ... (Hrsg.). Unter Mitarb. von Christoph Busch
    Keywords Bauchchirurgie ; Geschichte
    Subject Abdominalchirurgie ; Viszeralchirurgie ; Bauch ; Bauchoperation
    Language German
    Size 739 S. : zahlr. Ill.
    Publisher Einhorn-Presse-Verl
    Publishing place Reinbek
    Publishing country Germany
    Document type Book
    HBZ-ID HT013165160
    ISBN 3-88756-819-2 ; 978-3-88756-819-1
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    2001 A 4895 order for loan Magazin

    Order via subito

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  7. Book ; Thesis: Die Bedeutung der chirurgischen Präperation für Durchblutung und Stoffwechsel von Spenderlebern in-vivo

    Busch, Christoph Andreas

    eine tierexperimentelle Studie

    2004  

    Author's details vorgelegt von Christoph Andreas Busch
    Language German
    Size 76 Bl. : Ill., graph. Darst.
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Heidelberg, Univ., Diss., 2004
    HBZ-ID HT014471310
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    2005 E 1025 order for loan Magazin
    2005 E 1025 order for loan Magazin

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article ; Online: Determination of the water content of an ex vivo porcine liver

    Busch Christoph / Rupitsch Stefan J. / Moeller Knut

    Current Directions in Biomedical Engineering, Vol 9, Iss 1, Pp 222-

    2023  Volume 225

    Abstract: When modeling High-Frequency (HF) surgical applications the choice of the right dielectric tissue parameters is a key factor for success. The water content of biological tissue is of particular importance since the dielectric tissue properties highly ... ...

    Abstract When modeling High-Frequency (HF) surgical applications the choice of the right dielectric tissue parameters is a key factor for success. The water content of biological tissue is of particular importance since the dielectric tissue properties highly depend on it. Therefore, we investigate a simple and fast method for the determination of relative tissue water content using small samples of an ex vivo porcine liver. To identify the water content, we utilized a desiccation and weighing experiment. It is assumed that the weight loss can be directly attributed to the loss of water in the case of desiccation. Based on the ratio between the initial and dry weight of a sample, the relative water content can be determined. The drying procedure lasted 28 hours, with 16 small samples taken from an ex vivo porcine liver. At the end of the drying procedure, a relative tissue water content of 69.6 % ± 1.1 % was observed. Using a curve fit to the measured data, it can be assumed that approximately 99.3 % of the tissue water content had evaporated by the end of the drying process. With the drying and weighing method used, we were able to determine the water content of the ex vivo porcine liver relatively easily. However, our results also suggest that optimizations of the applied method should be considered for future measurements. Especially, if a faster determination of the water content is required, which in a broader sense should afterward serve for the validation of a simulation model.
    Keywords tissue water content ; porcine liver ; desiccation ; Medicine ; R
    Language English
    Publishing date 2023-09-01T00:00:00Z
    Publisher De Gruyter
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  9. Book ; Online: Analyzing eyebrow region for morphed image detection

    Zafar, Abdullah / Busch, Christoph

    2023  

    Abstract: Facial images in passports are designated as primary identifiers for the verification of travelers according to the International Civil Aviation Organization (ICAO). Hence, it is important to ascertain the sanctity of the facial images stored in the ... ...

    Abstract Facial images in passports are designated as primary identifiers for the verification of travelers according to the International Civil Aviation Organization (ICAO). Hence, it is important to ascertain the sanctity of the facial images stored in the electronic Machine-Readable Travel Document (eMRTD). With the introduction of automated border control (ABC) systems that rely on face recognition for the verification of travelers, it is even more crucial to have a system to ensure that the image stored in the eMRTD is free from any alteration that can hinder or abuse the normal working of a facial recognition system. One such attack against these systems is the face-morphing attack. Even though many techniques exist to detect morphed images, morphing algorithms are also improving to evade these detections. In this work, we analyze the eyebrow region for morphed image detection. The proposed method is based on analyzing the frequency content of the eyebrow region. The method was evaluated on two datasets that each consisted of morphed images created using two algorithms. The findings suggest that the proposed method can serve as a valuable tool in morphed image detection, and can be used in various applications where image authenticity is critical.
    Keywords Computer Science - Cryptography and Security
    Subject code 006
    Publishing date 2023-10-30
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Book ; Online: Face Feature Visualisation of Single Morphing Attack Detection

    Tapia, Juan / Busch, Christoph

    2023  

    Abstract: This paper proposes an explainable visualisation of different face feature extraction algorithms that enable the detection of bona fide and morphing images for single morphing attack detection. The feature extraction is based on raw image, shape, texture, ...

    Abstract This paper proposes an explainable visualisation of different face feature extraction algorithms that enable the detection of bona fide and morphing images for single morphing attack detection. The feature extraction is based on raw image, shape, texture, frequency and compression. This visualisation may help to develop a Graphical User Interface for border policies and specifically for border guard personnel that have to investigate details of suspect images. A Random forest classifier was trained in a leave-one-out protocol on three landmarks-based face morphing methods and a StyleGAN-based morphing method for which morphed images are available in the FRLL database. For morphing attack detection, the Discrete Cosine-Transformation-based method obtained the best results for synthetic images and BSIF for landmark-based image features.
    Keywords Computer Science - Computer Vision and Pattern Recognition
    Publishing date 2023-04-25
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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