chapter  4
18 Pages

A model for the rapid interpretation of line drawings in early vision

A second example shows that rapid search can be based on the threedimensional orientation of objects (see Figure 4.2). Search is rapid when items can be interpreted as blocks with different three-dimensional orientations in the scene (Figure 4.2(b)), but much slower when items do not lend themselves readily to such an interpretation (Figure 4.2(b)). Empirical findings such as these, therefore, provide convincing evidence that complex, environmentally relevant features are represented in early vision. But how is this accomplished?