perceived visual angle造句

• This size difference in area V1 correlated with the 17 % illusory difference between the perceived visual angles.
• It is replaced by a perceptual SDIH, in which the visual angle is replaced by the perceived visual angle.
• Instead, the physical retinal extent " R " normally determines the magnitude of the perceived visual angle " ?2 ".
• This paradigm is not universally accepted; many textbook explanations of size and distance perception do not refer to the perceived visual angle, and some researchers deny that it exists.
• The perceived visual angle paradigm begins with a rejection of the classical size distance invariance hypothesis ( SDIH ), which states that the ratio of perceived linear size to perceived distance is a simple function of the visual angle.
• The " paradox " completely vanishes, however, when the illusion is described, instead, as basically a visual angle illusion : That is, the perceived visual angle " ?2 " is larger for the lower circle than for the upper circle : It is as if its retinal image were larger.
• Accordingly, as described below, the visual angle " ? " is the difference between two real ( optical ) directions in the field of view, while the perceived visual angle " ?2 ", is the difference by which the directions of two viewed points from oneself appear to differ in the visual field.
• The object's other perceived endpoint, "'A "'2, has a perceived direction " d2 " "'A "';, about which the observer might say " it appears toward a higher elevation than point "'B "'2 . " The difference between the two perceived directions ( ) is the perceived visual angle " ?2 ", also called the perceived angular size or apparent angular size.