Abstract: An information processing system (1) includes an operation amount data acquisition unit (109), an image data acquisition unit (101), a difference expression extraction unit (108), and a mirror surface region identification unit (111). The operation amount data acquisition unit (109) acquires operation amount data of an object. The image data acquisition unit (101) acquires image data captured by an imaging device mounted on the object. The difference expression extraction unit (108) extracts a difference expression representing feature information about a difference between two images based on two pieces of image data captured before and after the operation of the object. The mirror surface region identification unit (111) identifies a mirror surface region based on a correlation between the difference expression and the operation amount data.

Abstract: There is provided an electronic device including a geomagnetism detection part acquiring magnetic direction data corresponding to geomagnetism every predetermined period of time, a change amount calculation part calculating a change amount of the magnetic direction data, a storage part storing the magnetic direction data, an angular velocity integration part calculating angle data obtained by integration of angular velocity obtained by an angular velocity detection part, and a direction output part.

Abstract: There is provided an electronic device including a geomagnetism detection part acquiring magnetic direction data corresponding to geomagnetism every predetermined period of time, a change amount calculation part calculating a change amount of the magnetic direction data, a storage part storing the magnetic direction data, an angular velocity integration part calculating angle data obtained by integration of angular velocity obtained by an angular velocity detection part, and a direction output part.

Abstract: An image capture apparatus configured to assist the user to obtain at least one image including a first image. The image capture apparatus comprises at least one processor configured to produce a first superimposed image by superimposing first navigation information with the first image at least in part by using first composition data associated with the first image and reference composition data associated with a reference image, and at least one display configured to display the first superimposed image. The first composition data comprises shooting angle information and/or angle-of-view information of the image capture apparatus when the image capture apparatus obtained the first image.