| 摘要 |
A moving image distribution server sets a evaluation pixel for each of blocks that it divided a first screen into, and specifies a screen coordinate and a depth value, in a second screen acquired before the first screen, for a rendering object rendered on the evaluation pixel. It compares a depth value of the screen coordinate and a depth value of the rendering object rendered on the evaluation pixel, and determines that inter-frame coding will be performed with the second screen for a block for which the 2 depth values are considered to be the same. It transmits, to a external device, coding details information including the viewpoint information of the first screen, a depth buffer of the first screen, and information indicating whether or not blocks of the first screen are to be inter-frame coded.
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