Visual Perception Of The Critical Point Of Research

The principle of vision-structure indicate mostly some elements, which can get some relations of the "parts" in the image more consanguineous than the others, and sometimes those elements ensure the basic appearance of a visual work. However, the contemporary research for the principle of vision-structure is just describing this concept. And penman considers that there is a critical-point of datum in the principle of vision-structure, namely, what the different visual-elements effect the mode of visual-structure is barely availability in the definite datum-range, if not in this datum-range, the visual-structure will develop to the different principle of the visual-structure. This paper is just base on such viewpoint, analyzes and studies the data coming from the visual-experiment.