TY  - JOUR
A1  - Reimann, Max
A1  - Klingbeil, Mandy
A1  - Pasewaldt, Sebastian
A1  - Semmo, Amir
A1  - Trapp, Matthias
A1  - Döllner, Jürgen Roland Friedrich
T1  - Locally controllable neural style transfer on mobile devices
JF  - The Visual Computer
N2  - Mobile expressive rendering gained increasing popularity among users seeking casual creativity by image stylization and supports the development of mobile artists as a new user group. In particular, neural style transfer has advanced as a core technology to emulate characteristics of manifold artistic styles. However, when it comes to creative expression, the technology still faces inherent limitations in providing low-level controls for localized image stylization. In this work, we first propose a problem characterization of interactive style transfer representing a trade-off between visual quality, run-time performance, and user control. We then present MaeSTrO, a mobile app for orchestration of neural style transfer techniques using iterative, multi-style generative and adaptive neural networks that can be locally controlled by on-screen painting metaphors. At this, we enhance state-of-the-art neural style transfer techniques by mask-based loss terms that can be interactively parameterized by a generalized user interface to facilitate a creative and localized editing process. We report on a usability study and an online survey that demonstrate the ability of our app to transfer styles at improved semantic plausibility.
KW  - Non-photorealistic rendering
KW  - Style transfer
KW  - Neural networks
KW  - Mobile devices
KW  - Interactive control
KW  - Expressive rendering
Y1  - 2019
U6  - https://doi.org/10.1007/s00371-019-01654-1
SN  - 0178-2789
SN  - 1432-2315
VL  - 35
IS  - 11
SP  - 1531
EP  - 1547
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Zender, Raphael
A1  - Metzler, Richard
A1  - Lucke, Ulrike
T1  - FreshUP-A pervasive educational game for freshmen
JF  - Pervasive and mobile computing
N2  - Students beginning their studies at university face manifold problems such as orientation in a new environment and organizing their courses. This article presents the implementation and successful empirical evaluation of the pervasive browser-based educational game "FreshUP", which aims at helping to overcome the initial difficulties of freshmen. In contrast to a conventional scavenger hunt, mobile pervasive games like FreshUP, bridging in-game and real world activities, have the potential to provide help in a motivating manner using new technology which is currently becoming more and more common. (C) 2013 Elsevier B.V. All rights reserved.
KW  - Pervasive game
KW  - Campus
KW  - Freshmen
KW  - e-learning
KW  - Mobile devices
KW  - SOA
KW  - Evaluation
Y1  - 2014
U6  - https://doi.org/10.1016/j.pmcj.2013.09.003
SN  - 1574-1192
SN  - 1873-1589
VL  - 14
SP  - 47
EP  - 56
PB  - Elsevier
CY  - Amsterdam
ER  -