Retrieval of Brain Tumors with Region-Specific Bag-of-Visual-Words Representations in Contrast-Enhanced MRI Images
Figure 7
Flow diagram of the region-specific BoW representation construction. (a) The construction of tumor region and margin region vocabularies. (b) The construction of the region-specific BoW representation in a given image. The patches in (b) are obtained via the same procedures as shown in (a).