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2016


Patches, Planes and Probabilities: A Non-local Prior for Volumetric {3D} Reconstruction
Patches, Planes and Probabilities: A Non-local Prior for Volumetric 3D Reconstruction

Ulusoy, A. O., Black, M. J., Geiger, A.

In IEEE Conf. on Computer Vision and Pattern Recognition (CVPR), IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), June 2016 (inproceedings)

Abstract
In this paper, we propose a non-local structured prior for volumetric multi-view 3D reconstruction. Towards this goal, we present a novel Markov random field model based on ray potentials in which assumptions about large 3D surface patches such as planarity or Manhattan world constraints can be efficiently encoded as probabilistic priors. We further derive an inference algorithm that reasons jointly about voxels, pixels and image segments, and estimates marginal distributions of appearance, occupancy, depth, normals and planarity. Key to tractable inference is a novel hybrid representation that spans both voxel and pixel space and that integrates non-local information from 2D image segmentations in a principled way. We compare our non-local prior to commonly employed local smoothness assumptions and a variety of state-of-the-art volumetric reconstruction baselines on challenging outdoor scenes with textureless and reflective surfaces. Our experiments indicate that regularizing over larger distances has the potential to resolve ambiguities where local regularizers fail.

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YouTube pdf poster suppmat Project Page [BibTex]

2016


YouTube pdf poster suppmat Project Page [BibTex]


Semantic Instance Annotation of Street Scenes by 3D to 2D Label Transfer
Semantic Instance Annotation of Street Scenes by 3D to 2D Label Transfer

Xie, J., Kiefel, M., Sun, M., Geiger, A.

In IEEE Conf. on Computer Vision and Pattern Recognition (CVPR), IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), June 2016 (inproceedings)

Abstract
Semantic annotations are vital for training models for object recognition, semantic segmentation or scene understanding. Unfortunately, pixelwise annotation of images at very large scale is labor-intensive and only little labeled data is available, particularly at instance level and for street scenes. In this paper, we propose to tackle this problem by lifting the semantic instance labeling task from 2D into 3D. Given reconstructions from stereo or laser data, we annotate static 3D scene elements with rough bounding primitives and develop a probabilistic model which transfers this information into the image domain. We leverage our method to obtain 2D labels for a novel suburban video dataset which we have collected, resulting in 400k semantic and instance image annotations. A comparison of our method to state-of-the-art label transfer baselines reveals that 3D information enables more efficient annotation while at the same time resulting in improved accuracy and time-coherent labels.

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pdf suppmat Project Page Project Page [BibTex]

pdf suppmat Project Page Project Page [BibTex]


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Sustainable effects of simulator-based training on ecological driving

Lüderitz, C., Wirzberger, M., Karrer-Gauß, K.

In Advances in Ergonomic Design of Systems, Products and Processes. Proceedings of the Annual Meeting of the GfA 2015, pages: 463-475, Springer, 2016 (inbook)

Abstract
Simulation-based driver training offers a promising way to teach ecological driving behavior under controlled, comparable conditions. In a study with 23 professional drivers, we tested the effectiveness of such training. The driving behavior of a training group in a simulated drive with and without instructions were compared. Ten weeks later, a repetition drive tested the long-term effect training. Driving data revealed reduced fuel consumption by ecological driving in both the guided and repetition drives. Driving time decreased significantly in the training and did not differ from driving time after 10 weeks. Results did not achieve significance for transfer to test drives in real traffic situations. This may be due to the small sample size and biased data as a result of unusual driving behavior. Finally, recent and promising approaches to support drivers in maintaining eco-driving styles beyond training situations are outlined.

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DOI [BibTex]

DOI [BibTex]


Deep Discrete Flow
Deep Discrete Flow

Güney, F., Geiger, A.

Asian Conference on Computer Vision (ACCV), 2016 (conference) Accepted

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pdf suppmat Project Page [BibTex]

pdf suppmat Project Page [BibTex]


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Self-diffusiophoresis of chemically active colloids

Popescu, M. N., Uspal, W. E., Dietrich, S.

The European Physical Journal Special Topics, 225(11-12):2189-2206, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Perpetual superhydrophobicity

Giacomello, A., Schimmele, L., Dietrich, S., Tasinkevych, M.

Soft Matter, 12, pages: 8927-8934, Royal Society of Chemistry, Cambridge, UK, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Molecular dynamics simulation of a binary mixture near the lower critical point

Pousaneh, F., Edholm, O., Maciolek, A.

The Journal of Chemical Physics, 145(1), American Institute of Physics, Woodbury, N.Y., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Effective Interaction between Active Colloids and Fluid Interfaces Induced by Marangoni Flows

Dom\’\inguez, A., Malgaretti, P., Popescu, M. N., Dietrich, S.

Physical Review Letters, 116, American Physical Society, Woodbury, N.Y., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Dynamics of Novel Photoactive AgCl Microstars and Their Environmental Applications

Simmchen, J., Baeza, A., Miguel-Lopez, A., Stanton, M. M., Vallet-Regi, M., Ruiz-Molina, D., Sánchez, S.

ChemNanoMat, 3(1):65-71, Wiley, Weinheim, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Wetting hysteresis induced by nanodefects

Giacomello, A., Schimmele, L., Dietrich, S.

Proceedings of the National Academy of Sciences of the United States of America, 113(3):E262-E271, National Academy of Sciences, Washington, D.C., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Three-phase contact line and line tension of electrolyte solutions in contact with charged substrates

Ibagon, I., Bier, M., Dietrich, S.

Journal of Physics: Condensed Matter, 28(24), IOP Publishing, Bristol, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Smart biosensors for multiplexed and fully integrated point-of-care diagnostics

Romeo, A., Leung, T. S., Sanchez, S.

Lab on a Chip, 16(11):1957-1961, Royal Society of Chemistry, Cambridge, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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The sequential activation of the mitotic microtubule assembly pathways favors bipolar spindle formation

Cavazza, T., Malgaretti, P., Vernos, I.

Molecular Biology of the Cell, 27(19):2935-2945, American Society for Cell Biology, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Entropically induced asymmetric passage times of charged tracers across corrugated channels

Malgaretti, P., Pagonabarraga, I., Rubi, J. M.

The Journal of Chemical Physics, 144(3), American Institute of Physics, Woodbury, N.Y., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Diffusion im Zentrifugalpotential

Totikos, Vangelis

Universität Stuttgart, Stuttgart, 2016 (mastersthesis)

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[BibTex]

[BibTex]


Probabilistic Duality for Parallel Gibbs Sampling without Graph Coloring
Probabilistic Duality for Parallel Gibbs Sampling without Graph Coloring

Mescheder, L., Nowozin, S., Geiger, A.

Arxiv, 2016 (article)

Abstract
We present a new notion of probabilistic duality for random variables involving mixture distributions. Using this notion, we show how to implement a highly-parallelizable Gibbs sampler for weakly coupled discrete pairwise graphical models with strictly positive factors that requires almost no preprocessing and is easy to implement. Moreover, we show how our method can be combined with blocking to improve mixing. Even though our method leads to inferior mixing times compared to a sequential Gibbs sampler, we argue that our method is still very useful for large dynamic networks, where factors are added and removed on a continuous basis, as it is hard to maintain a graph coloring in this setup. Similarly, our method is useful for parallelizing Gibbs sampling in graphical models that do not allow for graph colorings with a small number of colors such as densely connected graphs.

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pdf [BibTex]


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Topographical pathways guide chemical microswimmers

Simmchen, J., Katuri, J., Uspal, W., Popescu, M. N., Tasinkevych, M., Sanchez, S.

Nature Communications, 7, Nature Publishing Group, London, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Fluctuational electrodynamics for nonlinear media

Soo, H., Krüger, M.

EPL, 115(4), EDP Science, Les-Ulis, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Poisson-Boltzmann study of the effective electrostatic interaction between colloids at an electrolyte interface

Majee, A., Bier, M., Dietrich, S.

The Journal of Chemical Physics, 145(6), American Institute of Physics, Woodbury, N.Y., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Bubble-Free Propulsion of Ultrasmall Tubular Nanojets Powered by Biocatalytic Reactions

Ma, X., Hortelao, A. C., Miquel-Lopez, A., Sanchez, S.

Journal of the American Chemical Society, 138(42):13782-13785, American Chemical Society, Washington, DC, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Wetting and orientation of catalytic Janus colloids at the surface of water

Wang, X., In, M., Blanc, C., Malgaretti, P., Nobilia, M., Stocco, A.

Faraday Discussions, 191, pages: 305-324, Royal Society of Chemistry, London, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Collective dynamics of chemically active particles trapped at a fluid interface

Dom\’\inguez, A., Malgaretti, P., Popescu, M. N., Dietrich, S.

Soft Matter, 12(40):8398-8406, Royal Society of Chemistry, Cambridge, UK, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Guiding Catalytically Active Particles with Chemically Patterned Surfaces

Uspal, W. E., Popescu, M. N., Dietrich, S., Tasinkevych, M.

Physical Review Letters, 117(4), American Physical Society, Woodbury, N.Y., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Structure and dynamics of binary liquid mixtures near their continuous demixing transitions

Roy, S., Höfling, F., Dietrich, S.

The Journal of Chemical Physics, 145(4), American Institute of Physics, Woodbury, N.Y., 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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A dynamic DFT approach to generalized diffusion equations in a system with long-ranged and hydrodynamic interactions

Bleibel, J., Dominguez, A., Oettel, M.

Journal of Physics: Condensed Matter, 28(24), IOP Publishing, Bristol, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Rectification and Non-Gaussian Diffusion in Heterogeneous Media

Malgaretti, P., Pagonabarraga, I., Rubi, J. M.

Entropy, 18(11), Molecular Diversity Preservation International, Basel, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Lateral critical Casimir force in two\textendashdimensional inhomogeneous Ising strip. Exact results

Nowakowski, P., Napiorkowski, M.

The Journal of Chemical Physics, 144(21), 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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One for all?! Simultaneous examination of load-inducing factors for advancing media-related instructional research

Wirzberger, M., Beege, M., Schneider, S., Nebel, S., Rey, G. D.

Computers {\&} Education, 100, pages: 18-31, Elsevier BV, 2016 (article)

Abstract
In multimedia learning settings, limitations in learners' mental resource capacities need to be considered to avoid impairing effects on learning performance. Based on the prominent and often quoted Cognitive Load Theory, this study investigates the potential of a single experimental approach to provide simultaneous and separate measures for the postulated load-inducing factors. Applying a basal letter-learning task related to the process of working memory updating, intrinsic cognitive load (by varying task complexity), extraneous cognitive load (via inducing split-attention demands) and germane cognitive load (by varying the presence of schemata) were manipulated within a 3 × 2 × 2-factorial full repeated-measures design. The performance of a student sample (N = 96) was inspected regarding reaction times and errors in updating and recall steps. Approaching the results with linear mixed models, the effect of complexity gained substantial strength, whereas the other factors received at least partial significant support. Additionally, interactions between two or all load-inducing factors occurred. Despite various open questions, the study comprises a promising step for the empirical investigation of existing construction yards in cognitive load research.

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DOI [BibTex]

DOI [BibTex]


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Tailoring three-dimensional architectures by rolled-up nanotechnology for mimicking microvasculatures

Arayanarakool, R., Meyer, A. K., Helbig, L., Sanchez, S., Schmidt, O. G.

Lab on a Chip, 15(14):2981-2989, Royal Society of Chemistry, Cambridge, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Flexible sensors for biomedical technology

Vilela, D., Romeo, A., Sanchez, S.

Lab on a Chip, 16(3):402-408, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Mechanical stability of bipolar spindle assembly

Malgaretti, P., Muhuri, S.

EPL, 115(2), EDP Science, Les-Ulis, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Reversed Janus micro/nanomotors with internal chemical engine

Ma, X., Jang, S., Popescu, M. N., Uspal, W. E., Miguel-López, A., Hahn, K., Kim, D., Sanchez, S.

ACS Nano, 10(9):8751-8759, American Chemical Society, Washington, DC, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Driven colloidal fluids: construction of dynamical density functional theories from exactly solvable limits

Scacchi, A., Krüger, M., Brader, J. M.

Journal of Physics: Condensed Matter, 28(24), IOP Publishing, Bristol, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Flight of a heavy particle nonlinearly coupled to a quantum bath

Maghrebi, M. F., Krüger, M., Kardar, M.

Physical Review B, 93(1), American Physical Society, Woodbury, NY, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Critical Casimir forces between defects in the 2D Ising model

Nowakowski, P., Maciolek, A., Dietrich, S.

Journal of Physics A: Mathematical and Theoretical, 49(48), IOP Pub., Bristol, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Miniaturized soft bio-hybrid robotics: a step forward into healthcare applications

Patino, T., Mestre, R., Sanchez, S.

Lab on a Chip, 16(19):3626-3630, Royal Society of Chemistry, Cambridge, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Characterizing anomalous diffusion in crowded polymer solutions and gels over five decades in time with variable-lengthscale fluorescence correlation spectroscopy

Banks, Daniel S, Tressler, Charmaine, Peters, Robert D, Höfling, Felix, Fradin, Cécile

Soft Matter, 12(18):4190-4203, Royal Society of Chemistry, Cambridge, UK, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Slip Length Enhancement in Nanofluidic Flow using Nanotextured Superhydrophobic Surfaces

Heverhagen, Jonas, Tasinkevych, M., Rahman, A., Black, C.T., Checco, A.

Advanced Materials Interfaces, 3(17), Wiley-VCH, Weinheim, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Electromagnetic radiation in complex environments: Many body systems and background medium

Müller, Boris

Universität Stuttgart, Stuttgart, 2016 (mastersthesis)

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[BibTex]

[BibTex]


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Active colloids at fluid interfaces

Malgaretti, P., Popescu, M. N., Dietrich, S.

Soft Matter, 12(17):4007-4023, Royal Society of Chemistry, Cambridge, UK, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Critical adsorption and critical Casimir forces in the canonical ensemble

Gross, M., Vasilyev, O., Gambassi, A., Dietrich, S.

Physical Review E, 94(2), American Physical Society, Melville, NY, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Critical Casimir interactions between Janus particles

Labbe-Laurent, M., Dietrich, S.

Soft Matter, 12(31):6621-6648, Royal Society of Chemistry, Cambridge, UK, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Motion Control of Urea-Powerde Biocompatible Hollow Microcapsule

Ma, X., Wang, X., Hahn, K., Sanchez, S.

ACS Nano, 10(3):3597-3605, American Chemical Society, Washington, DC, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Enzyme Catalysis To Power Micro/Nanomachines

Ma, X., Hortelao, A. C., Patino, T., Sanchez, S.

ACS Nano, 10(10):9111-9122, American Chemical Society, Washington, DC, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Microfluidic fuel cells for energy generation

Safdar, M., Jänis, J., Sanchez, S.

Lab on a Chip, 16(15):2754-2758, Royal Society of Chemistry, Cambridge, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Reusable and Long-Lasting Active Microcleaners for Heterogeneous Water Remediation

Parmar, J., Vilela, D., Pellicer, E., Esque-de-los Ojos, D., Sort, J., Sanchez, S.

Advanced Functional Materials, 26(23):4152-4161, Wiley-VCH Verlag GmbH, Weinheim, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Self-Assembly of Micromachining Systems Powered by Janus Micromotors

Maggi, C., Simmchen, J., Saglimbeni, F., Katuri, J., Dipalo, M., De Angelis, F., Sanchez, S., Di Leonardo, R.

Small, 12(4):446-451, Wiley, Weinheim, Germany, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Graphene-Based Microrobots for Toxic Heavy Metal Removal and Recovery from Water

Vilela, D., Parmar, J., Zeng, Y., Zhao, Y., Sanchez, S.

Nano Letters, 16(4):2860-2866, American Chemical Society, Washington, DC, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Colloidal Particles in Thin Nematic Wetting Films

Jeridi, H., Tasinkevych, M., Othman, T., Blanc, C.

Langmuir, 32(35):9097-9107, American Chemical Society, Columbus, OH, 2016 (article)

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DOI [BibTex]

DOI [BibTex]


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Theory of enantiomer separation by external fields

Gehrmann, Christian

Universität Stuttgart, Stuttgart, 2016 (mastersthesis)

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[BibTex]

[BibTex]