Search Results for author: Lars Schmarje

Found 13 papers, 7 papers with code

Annotating Ambiguous Images: General Annotation Strategy for High-Quality Data with Real-World Biomedical Validation

1 code implementation21 Jun 2023 Lars Schmarje, Vasco Grossmann, Claudius Zelenka, Johannes Brünger, Reinhard Koch

In the field of image classification, existing methods often struggle with biased or ambiguous data, a prevalent issue in real-world scenarios.

Image Classification

Opportunistic hip fracture risk prediction in Men from X-ray: Findings from the Osteoporosis in Men (MrOS) Study

no code implementations22 Jul 2022 Lars Schmarje, Stefan Reinhold, Timo Damm, Eric Orwoll, Claus-C. Glüer, Reinhard Koch

We show that FORM can correctly predict the 10-year hip fracture risk with a validation AUC of 81. 44 +- 3. 11% / 81. 04 +- 5. 54% (mean +- STD) including additional information like age, BMI, fall history and health background across a 5-fold cross validation on the X-ray and CT cohort, respectively.

Computed Tomography (CT)

Is one annotation enough? A data-centric image classification benchmark for noisy and ambiguous label estimation

1 code implementation13 Jul 2022 Lars Schmarje, Vasco Grossmann, Claudius Zelenka, Sabine Dippel, Rainer Kiko, Mariusz Oszust, Matti Pastell, Jenny Stracke, Anna Valros, Nina Volkmann, Reinhard Koch

We propose a data-centric image classification benchmark with ten real-world datasets and multiple annotations per image to allow researchers to investigate and quantify the impact of such data quality issues.

Image Classification Noise Estimation

Fuzzy Overclustering: Semi-Supervised Classification of Fuzzy Labels with Overclustering and Inverse Cross-Entropy

1 code implementation13 Oct 2021 Lars Schmarje, Johannes Brünger, Monty Santarossa, Simon-Martin Schröder, Rainer Kiko, Reinhard Koch

We propose a novel loss to improve the overclustering capability of our framework and show the benefit of overclustering for fuzzy labels.

Life is not black and white -- Combining Semi-Supervised Learning with fuzzy labels

no code implementations13 Oct 2021 Lars Schmarje, Reinhard Koch

We envision the incorporation of fuzzy labels into Semi-Supervised Learning and give a proof-of-concept of the potential lower costs and higher consistency in the complete development cycle.

S2C2 - An orthogonal method for Semi-Supervised Learning on ambiguous labels

no code implementations29 Sep 2021 Lars Schmarje, Monty Santarossa, Simon-Martin Schröder, Claudius Zelenka, Rainer Kiko, Jenny Stracke, Nina Volkmann, Reinhard Koch

Semi-Supervised Learning (SSL) can decrease the required amount of labeled image data and thus the cost for deep learning.

Learning Stixel-based Instance Segmentation

no code implementations7 Jul 2021 Monty Santarossa, Lukas Schneider, Claudius Zelenka, Lars Schmarje, Reinhard Koch, Uwe Franke

Stixels have been successfully applied to a wide range of vision tasks in autonomous driving, recently including instance segmentation.

Autonomous Driving Instance Segmentation +2

Beyond Cats and Dogs: Semi-supervised Classification of fuzzy labels with overclustering

1 code implementation3 Dec 2020 Lars Schmarje, Johannes Brünger, Monty Santarossa, Simon-Martin Schröder, Rainer Kiko, Reinhard Koch

We propose a novel loss to improve the overclustering capability of our framework and show on the common image classification dataset STL-10 that it is faster and has better overclustering performance than previous work.

General Classification Image Classification

2D and 3D Segmentation of uncertain local collagen fiber orientations in SHG microscopy

1 code implementation30 Jul 2019 Lars Schmarje, Claudius Zelenka, Ulf Geisen, Claus-C. Glüer, Reinhard Koch

Furthermore, we compare a variety of 2D and 3D methods such as classical approaches like Fourier analysis with state-of-the-art deep neural networks for the classification of local fiber orientations.

Segmentation

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