VIDEO COMPOSITION METHOD, VIDEO RECORDING METHOD, VIDEO COMPOSITION DEVICE, VIDEO RECORDING DEVICE, AND VIDEO DISPLAY SYSTEM

摘要

PROBLEM TO BE SOLVED: To display, when once converting a high-resolution video such as a 4K video into a low-resolution video and restoring it to a high-resolution video again, the high-resolution video with less degradation and high quality.SOLUTION: A video division device 101 divides a video with a first resolution into videos with a second resolution lower than that of the video with the first resolution, and a video composition device 201 composes the video with the first resolution using the videos with the second resolution.