Abstract
Objective: explore/research the laws/principles of visual activities by
mathematical methods. Methods: Drawing method and geometric analysis
method. Results: Discovering the visual principle of perceiving or
judging the shape of objects of straight shape (columnar shape);
creating/finding new method of research life activity law, or even
creating/establishing a new interdisciplinary subject–perceptual
geometry. Conclusion: If the difference between the slope values of any
two lines of sight that reflected from any equidistant adjacent two
points on an object to the eye is the constant, and is consistently
equal to i/m; this object must be the object that is perceived or judged
to be straight shape (columnar shape), otherwise, perceived or judged as
Fold or curve shape. This is the geometric visual principle of
perceiving or judging the shape of object. The human body can perceives
and judges the shape of object by perceiving the contraction activity
law of the muscles supporting the activity of sensory organ. Obviously,
action can not be perceived if it can not be encoded. Vertigo and some
other symptoms are caused by the brain’s ability to perceive movement
weakened or disappeared.Some scientific questions can be answered by
experiments. Some scientific problems can not be answered by experiment;
How to perceive or judge object shape is a scientific question that can
not be given an answer through the experiment.