Tresilian (1999) Argued That the Informativeness of Tau as a Measure

Multiple Choice

Tresilian (1999) argued that the informativeness of tau as a measure of time to contact is limited because:

A) It ignores accelerations in object velocity
B) It can only provide information about time to contact with the eyes
C) It is only accurate when applied to objects that are spherically symmetrical
D) It requires that image size and object expansion are both detectable
E) All of the above