An information processing device comprising: a storage device configured to store hierarchical data that comprises image data of different resolutions that is hierarchized in order of resolution; an input information acquisition unit configured to acknowledge a user request for movement of a viewpoint in a virtual space which is defined by an image plane and a distance from the image plane, wherein the movement of a viewpoint corresponds to at least one of an enlargement, reduction or two-dimensional scrolling of a display image; a display image processing unit (104, 106, 114) configured to create the display image from the hierarchical data by changing an area to be displayed in response to the request to move the viewpoint, the display image depicting a menu screen; and an object execution unit configured to execute a process that is associated with a predetermined area of an image, when the view point meets a condition for activating the process, wherein the associated process is the display of information, the playback of a moving image, or the activation of an application linked to the menu screen, and wherein the condition is defined by the positional relationship between the predetermined area defined on the image plane and an area that is determined by the viewpoint and that is displayed on a screen, and wherein the condition requires that the ratio of a part of the area displayed on the screen to the area of the screen, the part protruding from the predetermined area, is equal to or less than a predefined value, wherein the ratio is selected to be the maximum value of the length of the protruding part divided by the length of the screen in either the vertical or horizontal direction. a storage device configured to store hierarchical data that comprises image data of different resolutions that is hierarchized in order of resolution; an input information acquisition unit configured to acknowledge a user request for movement of a viewpoint in a virtual space which is defined by an image plane and a distance from the image plane, wherein the movement of a viewpoint corresponds to at least one of an enlargement, reduction or two-dimensional scrolling of a display image; a display image processing unit (104, 106, 114) configured to create the display image from the hierarchical data by changing an area to be displayed in response to the request to move the viewpoint, the display image depicting a menu screen; and an object execution unit configured to execute a process that is associated with a predetermined area of an image, when the view point meets a condition for activating the process, wherein the associated process is the display of information, the playback of a moving image, or the activation of an application linked to the menu screen, and wherein the condition is defined by the positional relationship between the predetermined area defined on the image plane and an area that is determined by the viewpoint and that is displayed on a screen, and wherein the condition requires that the ratio of a part of the area displayed on the screen to the area of the screen, the part protruding from the predetermined area, is equal to or less than a predefined value, wherein the ratio is selected to be the maximum value of the length of the protruding part divided by the length of the screen in either the vertical or horizontal direction.