In this research, we examined the observation characteristics of the space that are expected to be different depending on the subject and target space. These were examined from the view point of the environmental view that is different from the conventional focus view taking advantage of the features of the whole sky image whose viewing direction and field of view can be freely changed. Specifically, by calculating the observation rate of the components and the viewing direction observed by the subject and calculating the average observation rate obtained by averaging the observation rates of all the subjects at each location, it is possible to grasp elements and directions which are frequently observed at each location. It also became clear that it is possible to compare differences in observation between locations by defining the standardized observation rate by dividing the average observation rate by the solid angle ratio of each component and direction. In addition, by using the standardized observation rate, it was shown that subjects can be classified into several groups with different observation characteristics, and that observation characteristics correspond to the individual characteristics of each group to some extent.
Following is the knowledge gained from this study.
· By calculating the area ratio of the observation image, it was shown that it is possible to grasp how the subject observes the space in time series.
· By determining the average observation rate, it was confirmed that the solid angle ratio at each point had a large influence on how the space was observed. On the other hand, in the analysis by viewing direction, it became clear that there is a tendency to observe the upper side more at any directions.
· By finding the standardized observation rate, green was attracted more attention as space with less green, and the characteristics of each space could be grasped. In addition, it was found that there are well observed and unobserved directions depending on the space, and it was shown that the spreading direction is observed well.
· There was a flickering in the manner of observation of the subjects, suggesting that the elements selectively observed by the subjects are different. Based on this fact, we classified the subjects into three groups with different observation tendencies and clarified the characteristics of the observation, thereby clarifying what kind of personal characteristics appear as observation characteristics.
In this study, the average observation rate and the standardized observation rate are defined as the indicators showing the observation characteristics from the analysis of the spatial observation of the whole sky image, and a part of the usefulness is confirmed. But it has not yet been clarified how the differences in spatial evaluation occurs, due to differences in observation by subjects. We will consider the relation between the data of spatial evaluation acquired at the time of the experiment and observation characteristics, and think about clarifying the features of the proposed average observation rate and standardized observation rate more clearly in the future.
