Abstract
The Texture in room spaces becomes effective with the Visual Perception which derives from the tactile perception rather than the tactile perception itself. The Visual Roughness in the Surface Roughness which is a factor of the Texture, is essential. The Psychological quantity of the Surface Roughness is concerned with the Visual Roughness more than the physical Surface Roughness. First of all, we need to analyze the Visual Perception of the Surface Roughness and then to study quantitatively on the factor with which the Visual Roughness is concerned. The test piece in this experiment is made of sticking steel balls on the plywood. We used thirteen samples of different diameter balls painted in white. We made an experiment with them by the Method of Magnitude Estimation. The purpose of the experiment is as follows. 1. We tried to make clear that the Visual Roughness is concerned with that we perceive the Figure with the light part or the dark part, and to analyze the Visual Perception of the Surface Roughness about architectural materials. 2. To clear that there are two types of perception in the Visual Perception of the Surface Roughness. Then we quantify the Visual Roughness and organize the Scale of Perception. 3. To analyze quantitatively the relation of the Surface Roughness with the angle of lightting. 4. To study experimentally the factor of the Perception Type that is related to the Visulal Roughness, both the special feature of the materials physically and the individuality of the experimenter. 5. To study how the Field is related to the Perception Type. Principal matters that were analyzed by this experimental are as follows. 1. The Visual Perception phenomenon of the Surface Roughness fundamentally is controled by the Visual Perception Law in mental judgement of Figure. 2. There are two Perception Type, A and B, in the Visual Roughness. The Perception that regards the dark parts as the Figure is A Type, and B Type Perception regards the light parts as the Figure. 3. We quantified the Visual Roughness of A Type and B Type Perception with the tenpoint height (diameter) and organized the Scale of Perception. 4. The main factor that decides the Perception Type in the Visual Perception phenomenon is fixed by the strength of many factors as the Visual Perception individually, mentally, and by the physical factors. In this experiment, We studied the influence of the Field, the angle of lightting and the Roughness of the particle. 5. The Potential Energy in the Field interacts the the deciding of the Visual Perception Type. The Visual Roughness generally except the Field, approximates the Visual Roughness that we averaged the two different Visual Roughness in the two different Field. 6. The Roughness of the particle interacts the Visual Perception phenomenon more than the strength of the Field. As we can realize the real image on the large particle, we regard much the same, even in the different physical conditions.
