IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND INFORMATION STORAGE MEDIUM

To control screen display using moving pictures for a plurality of users. Respective moving pictures for a plurality of users are acquired, and each of the acquired moving pictures are displayed on a screen. Display content for the screen is controlled in response to content of each moving picture. At this time, it is also possible to move a specified movement image on the screen according to display position of each moving picture on the screen and content of each moving picture, or to change a display region of the moving picture on the screen according to content of each moving picture.