@inproceedings{EichnerWolffOhnewaldetal., author = {Eichner, Matthias and Wolff, Matthias and Ohnewald, Sebastian and Hoffmann, R{\"u}diger}, title = {Speech synthesis using stochastic Markov graphs}, series = {Proceedings, International Conference on Acoustics, Speech and Signal Processing, 7 - 11 May 2001, Salt Palace Convention Center, Salt Lake City, Utah, USA}, booktitle = {Proceedings, International Conference on Acoustics, Speech and Signal Processing, 7 - 11 May 2001, Salt Palace Convention Center, Salt Lake City, Utah, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {0-7803-7041-4}, doi = {10.1109/ICASSP.2001.941043}, pages = {829 -- 832}, language = {en} } @inproceedings{PeterHoffmannNedwedetal., author = {Peter, Pascal and Hoffmann, Sebastian and Nedwed, Frank and Hoeltgen, Laurent and Weickert, Joachim}, title = {From Optimised Inpainting with Linear PDEs Towards Competitive Image Compression Codecs}, series = {Image and Video Technology, 7th Pacific-Rim Symposium, PSIVT 2015, Auckland, New Zealand, November 25-27, 2015}, booktitle = {Image and Video Technology, 7th Pacific-Rim Symposium, PSIVT 2015, Auckland, New Zealand, November 25-27, 2015}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-29450-6}, doi = {10.1007/978-3-319-29451-3_6}, pages = {63 -- 74}, abstract = {For inpainting with linear partial differential equations (PDEs) such as homogeneous or biharmonic diffusion, sophisticated data optimisation strategies have been found recently. These allow high-quality reconstructions from sparse known data. While they have been explicitly developed with compression in mind, they have not entered actual codecs so far: Storing these optimised data efficiently is a nontrivial task. Since this step is essential for any competetive codec, we propose two new compression frameworks for linear PDEs: Efficient storage of pixel locations obtained from an optimal control approach, and a stochastic strategy for a locally adaptive, tree-based grid. Suprisingly, our experiments show that homogeneous diffusion inpainting can surpass its often favoured biharmonic counterpart in compression. Last but not least, we demonstrate that our linear approach is able to beat both JPEG2000 and the nonlinear state-of-the-art in PDE-based image compression.}, language = {en} } @inproceedings{MeyerBaeseBarbuLobbesetal., author = {Meyer-Baese, Anke and Barbu, Adrian and Lobbes, Marc and Hoffmann, Sebastian and Burgeth, Bernhard and Kleefeld, Andreas and Meyer-Baese, Uwe}, title = {Computer-aided diagnosis of breast MRI with high accuracy optical flow estimation}, series = {Independent Component Analyses, Compressive Sampling, Large Data Analyses (LDA), Neural Networks, Biosystems, and Nanoengineering XIII}, booktitle = {Independent Component Analyses, Compressive Sampling, Large Data Analyses (LDA), Neural Networks, Biosystems, and Nanoengineering XIII}, editor = {Szu, Harold H. and Dai, Liyi and Zheng, Yufeng}, publisher = {SPIE}, address = {Bellingham, Wash.}, doi = {10.1117/12.2181815}, abstract = {Non-mass enhancing lesions represent a challenge for the radiological reading. They are not well-defined in both morphology (geometric shape) and kinetics (temporal enhancement) and pose a problem to lesion detection and classification. To enhance the discriminative properties of an automated radiological workflow, the correct preprocessing steps need to be taken. In an usual computer-aided diagnosis (CAD) system, motion compensation plays an important role. To this end, we employ a new high accuracy optical flow based motion compensation algorithm with robustification variants. An automated computer-aided diagnosis system evaluates the atypical behavior of these lesions, and additionally considers the impact of non-rigid motion compensation on a correct diagnosis.}, language = {en} } @inproceedings{EichnerOhnewaldWolffetal., author = {Eichner, Matthias and Ohnewald, Sebastian and Wolff, Matthias and Hoffmann, R{\"u}diger}, title = {Anwendung Stochastischer Markovgraphen in einem integrierten Spracherkennungs- und -synthesesystem}, series = {Fortschritte der Akustik - DAGA 2001, 27. Jahrestagung f{\"u}r Akustik, vom 26. bis zum 29. M{\"a}rz auf dem Gel{\"a}nde der Technischen Universit{\"a}t Hamburg-Harburg, TUHH}, booktitle = {Fortschritte der Akustik - DAGA 2001, 27. Jahrestagung f{\"u}r Akustik, vom 26. bis zum 29. M{\"a}rz auf dem Gel{\"a}nde der Technischen Universit{\"a}t Hamburg-Harburg, TUHH}, publisher = {DEGA}, address = {Oldenburg}, isbn = {3-9804568-9-7}, pages = {560 -- 561}, language = {de} } @misc{LabsReichSchulenburgetal., author = {Labs, Annika and Reich, Theresa and Schulenburg, Helene and Boennen, Manuel and Gehrke, Mareike and Golz, Madleen and Hartigs, Benita and Hoffmann, Nico and Keil, Sebastian and Perlow, Mal{\´u} and Peukmann, Anne Katrin and Rabe, Lea and Sobbe, Franca-Rosa von and Hanke, Michael}, title = {Portrayed emotions in the movie "Forrest Gump"}, series = {F1000Research}, volume = {4}, journal = {F1000Research}, issn = {2046-1402}, doi = {10.12688/f1000research.6230.1}, abstract = {Here we present a dataset with a description of portrayed emotions in the movie "Forrest Gump". A total of 12 observers independently annotated emotional episodes regarding their temporal location and duration. The nature of an emotion was characterized with basic attributes, such as arousal and valence, as well as explicit emotion category labels. In addition, annotations include a record of the perceptual evidence for the presence of an emotion. Two variants of the movie were annotated separately: 1) an audio-movie version of Forrest Gump that has been used as a stimulus for the acquisition of a large public functional brain imaging dataset, and 2) the original audio-visual movie. We present reliability and consistency estimates that suggest that both stimuli can be used to study visual and auditory emotion cue processing in real-life like situations. Raw annotations from all observers are publicly released in full in order to maximize their utility for a wide range of applications and possible future extensions. In addition, aggregate time series of inter-observer agreement with respect to particular attributes of portrayed emotions are provided to facilitate adoption of these data.}, language = {en} }