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SuperDSM is a globally optimal segmentation method based on superadditivity and deformable shape models for cell nuclei in fluorescence microscopy images and beyond.

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SuperDSM is a globally optimal segmentation method based on superadditivity and deformable shape models for cell nuclei in fluorescence microscopy images and beyond.

The documentation is available here: https://superdsm.readthedocs.io

Use python -m unittest in the root directory of the repository to run the test suite.

Dependency Version Considerations:

The file superdsm.yml specifies the Conda environment required to accurately reproduce the results from our publications. For most of the dependencies (maybe even all), newer versions are also known to work, however, it has been observed that using different versions might yield slightly different results. To enhance consistency, reproducibility, and FAIRness, most dependency versions are thus pinned.

This also concerns BLAS, which is pinned to blas==1.0. As an alternative to using Conda, requirements.txt specifies a minimal set of required pip dependencies with pinned versions. However, to the best of our knowledge, it is not possible to request a specific BLAS version in pip, meaning that using pip instead of Conda is discouraged.

Note that our Conda package from Bioconda allows different dependency versions, because otherwise it would not be possible to use the package with newer versions of Python. Thus, when using our Conda package, keep in mind that sticking to the versions of the dependencies specified in superdsm.yml is recommended.

Performance Considerations:

For full performance on both Intel and AMD CPUs, NumPy with MKL support must be used (instead of OpenBLAS which is often the default, see details). When using Conda, this can be ensured by adding the dependency blas=1.0=mkl to the Conda environment (or blas=*=mkl to allow different versions).

To take advantage of the acceleration provided by MKL on AMD CPUs, the MKL version must be pinned to 2020.0. Both specifications are included in the Conda environment specified in superdsm.yml. In addition, the environment variable MKL_DEBUG_CPU_TYPE=5 must be set. This happens automatically if the CPU is recognized as an AMD CPU. If automatic recognition of the CPU vendor fails, a warning is displayed when the module is loaded, in which case MKL_DEBUG_CPU_TYPE=5 should be set automatically for AMD GPUs.

Later versions of MKL do not support MKL_DEBUG_CPU_TYPE=5, and previous versions do not offer the required APIs. Unfortunately, it looks like this particular version of MKL has been removed from PyPI (see available versions), so it is not possible to gain the full performance on AMD CPUs using pip instead of Conda, and thus the version of MKL is not pinned in requirements.txt by default.

Contributions:

Contributions should be made against the develop branch, so that the documentation build on readthedocs.io is triggered, the documentation is built and reviewed (see here), before develop is merged into master. This ensures that the master branch always has an up-to-date documentation.

Publications:

  • L. Kostrykin and K. Rohr, "Robust Graph Pruning for Efficient Segmentation and Cluster Splitting of Cell Nuclei using Deformable Shape Models," accepted for presentation at IEEE International Symposium on Biomedical Imaging (ISBI), Athens, Greece, May 27–30, 2024.
  • L. Kostrykin and K. Rohr, "Superadditivity and Convex Optimization for Globally Optimal Cell Segmentation Using Deformable Shape Models," in IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), vol. 45(3), pp. 3831–3847, 2023. [doi]

Copyright (c) 2017-2024 Leonid Kostrykin, Biomedical Computer Vision Group, Heidelberg University

This work is licensed under the terms of the MIT license. For a copy, see LICENSE.