06_​Semantic_​Segmentation

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This workflow shows how the new KNIME Keras integration can be used to train and deploy a specialized deep neural network for semantic segmentation.
This means that our network decides for each pixel in the input image, what class of object it belongs to.


In order to run the example, please make sure you have the following KNIME extensions installed:

* KNIME Deep Learning - Keras Integration (Labs)
* KNIME Image Processing (Community Contributions Trusted)
* KNIME Image Processing - Deep Learning Extension (Community Contributions Trusted)
* KNIME Streaming Execution (Beta) (Labs)
* KNIME Image Processing - Python Extension (Community Contributions Trusted)

You also need a local Python installation that includes Keras. Please refer to https://www.knime.com/deeplearning#keras for installation recommendations and further information.

Acknowledgements:

The network architecture we use is an adaptation of the U-Net proposed in [1].

The dataset we used is taken from [2]

[1] Ronneberger et al. in "U-Net: Convolutional Networks for Biomedical Image Segmentation" (https://arxiv.org/abs/1505.04597)

[2] Gould et al. "Decomposing a Scene into Geometric and Semantically Consistent Regions." (http://dags.stanford.edu/projects/scenedataset.html)

Nodes

• String Manipulation3 ×
• DL Network Executor2 ×
• DL Python Network Creator2 ×
• Dimension Swapper2 ×
• Image Resizer2 ×
• Show all 25 nodes

Extensions

• FeatureKNIME Base nodes
• FeatureKNIME Deep Learning - Keras Integration
• FeatureKNIME Image Processing
• FeatureKNIME Javasnippet
• FeatureKNIME Python 2 Integration (legacy)

Links

• U-Net paper

  arxiv.org/abs/1505.04597
• Dataset website

  http://dags.stanford.edu/projects/scenedataset.html