1. A movement detection device to detect a position/posture of an object itself which is equipped with a self-sustaining movement detection section that does not require any other reference device, comprising: an image pickup section fixed to the self-sustaining movement detection section, which projects an image around the object to continuously pick up the projected image; an image conversion section which converts the projected image picked up by the image pickup section into a cylindrical panorama image; an image recognition section which compares and recognized two cylindrical panorama images converted at different times by the image conversion section; a camera posture estimation section which estimates position/posture information of the object based on a recognition result of the image recognition section; and a space sensor posture estimation section which estimates the position/posture of the object in a space based on a detection result of the self-sustaining movement detection section and an estimation result of the camera posture estimation section, wherein the image conversion section converts the image into a gravity correction panorama image in consideration of a direction of a vector of a gravity axis direction and a rotation angle around a gravity axis, detected by the self-sustaining movement detection section, when converting the image picked up by the image pickup section into the cylindrical panorama image.