Building Recognition on Subregion’s Multiscale Gist Feature Extraction and Corresponding Columns Information Based Dimensionality Reduction

Figure 4

The process of building a gist feature matrix. We take the mean of each subregion in each assembled feature map to produce 20 values for a gist column. In total, 28 gist columns are computed. Then all the gist feature columns are combined into a gist feature matrix.