1. An image processing system comprising: a head mounted device including an image acquisition section that consecutively acquires still images; a direction determination section that determines a camera moving direction, the camera moving direction being a moving direction of an imaging section during capture; a panoramic image generation section that performs a synthesis process of the consecutively acquired still images to generate a panoramic image; a guidance information generation section that generates guidance information, the guidance information being information that displays the moving direction of the imaging section to a user, wherein when the camera moving direction that corresponds to a given moving direction is a first camera moving direction, the camera moving direction that is opposite to the first camera moving direction is a second camera moving direction, and the camera moving direction that differs from the first camera moving direction and the second camera moving direction is a third camera moving direction; and a storage section that stores camera motion direction information, the camera motion direction information being information that indicates camera motion directions that are directions in which the imaging section is moved between still image capture timings, wherein the direction determination section determines the camera motion directions based on motion information about the imaging section acquired by a motion information acquisition section, wherein the direction determination section determines whether the camera moving direction is the first camera moving direction, the second camera moving direction, or the third camera moving direction when the imaging section is moved during capture, wherein the panoramic image generation section determines a synthesis position of a still image among the consecutively acquired still images based on the camera moving direction when the consecutively acquired still images were captured, and performs the synthesis process of the still image to generate the panoramic image, wherein the guidance information generation section, when the direction determination section has determined that the camera moving direction is the second camera moving direction, reads from the storage section in reverse order, the camera motion direction information of camera motion directions when the imaging section was moved in the first camera moving direction, and generates path guidance information as the guidance information, the path guidance information being information that guides the user to move the imaging section in directions respectively opposite to the camera motion directions indicated by the camera motion direction information read from the storage section, wherein the guidance information is displayed such that a first still image, which is from among the consecutively acquired still images and which is captured while the camera moving direction is the second camera moving direction, overlaps with a second still image, which is also from among the consecutively acquired still images and which is captured while the camera moving direction is the first camera moving direction, wherein the first and second still images are not captured at consecutive timings, wherein the guidance information generation section calculates a moving amount of the imaging section during capture after the camera moving direction has been changed to the third camera moving direction and calculates a moving amount of pixels corresponding to an identical image range before and after the imaging section is moved during capture by the calculated moving amount in the third camera moving direction, and wherein when the guidance information generation section determines that the moving amount of the pixels exceeds a given percentage of a dimension of a frame corresponding to the identical image range before the imaging section is moved during capture in the third camera moving direction, the guidance information generation section displays the guidance information to indicate a change timing to change the camera moving direction from the third camera moving direction to the second camera moving direction.