Improved computer aided TDT analysis

Abstract

This paper advocates the use of computer techniques for Koch's Tree Drawing Test interpretation. The suggested methodology is conceived to help clinicians and could be very useful during the screening of large groups when doctors have to evaluate many individual tests. The proposed application assure the TDT image acquisition, pre-process it, detects the main features of the sketched tree, computes the main 3 ratios used for the diagnosis and gives a decision according to their value. The results are compared with a professional psychologist's evaluation over the same set of tests.

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