Recognizing outline pictures via touch: alignment theory
John M. Kennedy · 2000
Abstract The aim of this chapter is to evaluate current research about theories of surface, grouping, perceptual channels and processing of connections. In this undertaking, John M. Kennedy conducted an experiment on recognition of outline pictures and outline representation and perception, as exhibited by three blind subjects. The first part of the experiment required the blind subjects to draw, using a raised-line drawing kit what they perceive to be representations of given objects. The second part was a test on recognition of tactile pictures. Both sections of the experiment, as well as existing studies on the matter indicate that outline pictures explored by touch and outline pictures examined by eye follows the same principles. Tactile outlines represent occluding boundaries and corners of surfaces just as much as in visual outlines. It has also been noted that dotted lines can be perceived and act as lines in outline drawing, both tactually and visually. In conclusion, the researcher states that theories of relevant features that can be depicted are advanced.