Figure 8
From: Discriminative Learning for Automatic Staging of Placental Maturity via Multi-layer Fisher Vector

System overview of the automatic placental maturity staging method.
The input images are first pre-processed (i.e., noise reduction) and then the features are extracted based on the dense sampling on the pre-processed placental images. FV is investigated to encode the extracted features and transform them to high-level representation in terms of histogram of occurrence.