Search Results for author: Sebastian Wolf

Found 14 papers, 3 papers with code

Cataract-1K: Cataract Surgery Dataset for Scene Segmentation, Phase Recognition, and Irregularity Detection

no code implementations11 Dec 2023 Negin Ghamsarian, Yosuf El-Shabrawi, Sahar Nasirihaghighi, Doris Putzgruber-Adamitsch, Martin Zinkernagel, Sebastian Wolf, Klaus Schoeffmann, Raphael Sznitman

Besides, we initiate the research on domain adaptation for instrument segmentation in cataract surgery by evaluating cross-domain instrument segmentation performance in cataract surgery videos.

Benchmarking Domain Adaptation +4

Learning-based adaption of robotic friction models

no code implementations25 Oct 2023 Philipp Scholl, Maged Iskandar, Sebastian Wolf, Jinoh Lee, Aras Bacho, Alexander Dietrich, Alin Albu-Schäffer, Gitta Kutyniok

Subsequently, to adapt to more complex asymmetric settings, we train a second network on a small dataset, focusing on predicting the residual of the initial network's output.

Friction

Domain Adaptation for Medical Image Segmentation using Transformation-Invariant Self-Training

1 code implementation31 Jul 2023 Negin Ghamsarian, Javier Gamazo Tejero, Pablo Márquez Neila, Sebastian Wolf, Martin Zinkernagel, Klaus Schoeffmann, Raphael Sznitman

However, the unreliability of pseudo labels can hinder the capability of self-training techniques to induce abstract representation from the unlabeled target dataset, especially in the case of large distribution gaps.

Domain Adaptation Image Segmentation +3

Full or Weak annotations? An adaptive strategy for budget-constrained annotation campaigns

no code implementations CVPR 2023 Javier Gamazo Tejero, Martin S. Zinkernagel, Sebastian Wolf, Raphael Sznitman, Pablo Márquez Neila

However, for any new domain application looking to use weak supervision, the dataset builder still needs to define a strategy to distribute full segmentation and other weak annotations.

Segmentation Transfer Learning

CataNet: Predicting remaining cataract surgery duration

1 code implementation21 Jun 2021 Andrés Marafioti, Michel Hayoz, Mathias Gallardo, Pablo Márquez Neila, Sebastian Wolf, Martin Zinkernagel, Raphael Sznitman

Cataract surgery is a sight saving surgery that is performed over 10 million times each year around the world.

Self-scattering on large, porous grains in protoplanetary disks with dust settling

no code implementations8 Mar 2021 Robert Brunngräber, Sebastian Wolf

We investigate the effect of dust grain porosity on the polarisation due to scattering at sub-mm wavelengths arising from grains of up to mm sizes, as they are expected to be present in the midplane of PPDs.

Solar and Stellar Astrophysics Earth and Planetary Astrophysics

Imaging trapped ion structures via fluorescence cross-correlation detection

no code implementations24 Dec 2020 Stefan Richter, Sebastian Wolf, Joachim von Zanthier, Ferdinand Schmidt-Kaler

For the case of two ions we obtain from the cross-correlations a spatial frequency $f_\text{spatial}=1490 \pm 2_{stat.

Quantum Physics

Constraining the magnetic field properties of Bok globule B335 using SOFIA/HAWC+

no code implementations10 Dec 2020 Niko Zielinski, Sebastian Wolf, Robert Brunngräber

To study the magnetic field of the prototypical Bok globule B335, we obtained a spatially resolved polarization map with SOFIA/HAWC+ at a wavelength of 214$\,\mu$m.

Solar and Stellar Astrophysics Astrophysics of Galaxies

Fused Detection of Retinal Biomarkers in OCT Volumes

no code implementations16 Jul 2019 Thomas Kurmann, Pablo Márquez-Neila, Siqing Yu, Marion Munk, Sebastian Wolf, Raphael Sznitman

In this context, we present a method that automatically predicts the presence of biomarkers in OCT cross-sections by incorporating information from the entire volume.

Deep Multi Label Classification in Affine Subspaces

no code implementations10 Jul 2019 Thomas Kurmann, Pablo Marquez Neila, Sebastian Wolf, Raphael Sznitman

We evaluate the method using two MLC medical imaging datasets and show a large performance increase compared to previous multi-label frameworks.

Classification General Classification +3

Simultaneous Recognition and Pose Estimation of Instruments in Minimally Invasive Surgery

1 code implementation18 Oct 2017 Thomas Kurmann, Pablo Marquez Neila, Xiaofei Du, Pascal Fua, Danail Stoyanov, Sebastian Wolf, Raphael Sznitman

An additional advantage of our approach is that instrument detection at test time is achieved while avoiding the need for scale-dependent sliding window evaluation.

Pose Estimation

Pathological OCT Retinal Layer Segmentation using Branch Residual U-shape Networks

no code implementations16 Jul 2017 Stefanos Apostolopoulos, Sandro De Zanet, Carlos Ciller, Sebastian Wolf, Raphael Sznitman

The automatic segmentation of retinal layer structures enables clinically-relevant quantification and monitoring of eye disorders over time in OCT imaging.

RetiNet: Automatic AMD identification in OCT volumetric data

no code implementations12 Oct 2016 Stefanos Apostolopoulos, Carlos Ciller, Sandro I. De Zanet, Sebastian Wolf, Raphael Sznitman

In much the same way, acquiring ground truth information for each cross-section is expensive and time consuming.

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