Video playback device, computer readable medium and video playback method

A non-transitory computer readable medium stored with a video playback program for making a computer function as a device comprising:

• a video acquisition part to acquire a first video data encoded at a first frame rate, the first video data including multiple frame sequences each containing a frame holding both of information about a background image and information about a moving object image, and second frames each holding information about a position of the moving object image in itself but not holding information about the background image;
• a video data generation part to generate, based on the first video data acquired by the video acquisition part, a second video data to be played back at a second frame rate lower than the first frame rate;
• and
• a video display part to display video based on the second video data generated by the video data generation part,
• wherein the video data generation part includes:
• a computing part to compute, with respect to each of three contiguous frames in the first video content, a position of a virtual moving object image that is situated in between a first and a second moving object images in each of two contiguous frames in the three contiguous frames as a half of a motion of the first moving object image and a half of a motion of the second moving object image;
• and
• a frame image creating part to create, with respect to each position of the virtual moving object image computed by the computing part, a frame image containing the background image and the moving object image placed in the computed position, the frame image being a component of the second video data.

A video playback method comprising:

• acquiring a first video data encoded at a first frame rate, the first video data including multiple frame sequences each containing a frame holding both of information about a background image and information about a moving object image, and second frames each holding information about position of the moving object image in itself but not holding information about the background image;
• generating, based on the first video data acquired by the acquiring, a second video data to be played back at a second frame rate lower than the first frame rate;
• and
• displaying video based on the second video data generated by the generating,
• wherein the generating includes:
• computing, with respect to each of three contiguous frames in the first video content, a position of a virtual moving object image that is situated in between a first and a second moving object images in each of two contiguous frames in the three contiguous frames as a half of a motion of the first moving object image and a half of a motion of the second moving object image;
• and
• creating, with respect to each position of the virtual moving object image computed by the computing, a frame image containing the background image and the moving object image placed in the computed position, the frame image being a component of the second video data.