A solid golf ball is composed of a solid core and a cover of one or more layers which encloses the core and has on a surface thereof numerous dimples. The mop head and handle have a front and a back. Noise is adaptively added to the decoded moving image signal in accordance with a luminance signal of the decoded moving image signal. The scene flow module is also configured to identify multiple keyframes of the input video sequence and add the identified keyframes into an initial environment map of the input video sequence.