VIDEO CODING APPARATUS AND VIDEO CODING METHOD

摘要

A video coding apparatus is a video coding apparatus which codes a coding target video based on a coding standard, and includes: a dividing unit which divides an image included in the coding target video into a plurality of control blocks; and a prediction image generating unit which divides each of the control blocks into a plurality of prediction blocks, and generates, for each of the prediction blocks, a prediction image using one of inter prediction and intra prediction, wherein the coding standard allows each of the control blocks to be divided into the prediction blocks such that the prediction blocks have different sizes, and the prediction image generating unit divides each of the control blocks into the prediction blocks such that the prediction blocks all have an identical size, rather than dividing each of the control blocks into the prediction blocks such that the prediction blocks have different sizes.

主权项

1. A video coding apparatus which codes a coding target video based on a coding standard, comprising:
a dividing unit configured to divide an image included in the coding target video into a plurality of control blocks; a prediction image generating unit configured to divide each of the control blocks into a plurality of prediction blocks, and generate, for each of the prediction blocks, a prediction image using one of inter prediction and intra prediction; a subtracter which generates a residual component by calculating, for each of the prediction blocks, a difference between the prediction image and the image included in the coding target video; and a signal processing unit configured to generate a compressed video by performing orthogonal transform, quantization, and variable length coding on the residual component, wherein the coding standard allows each of the control blocks to be divided into the prediction blocks such that the prediction blocks have different sizes, and the prediction image generating unit is configured to divide each of the control blocks into the prediction blocks such that the prediction blocks all have an identical size, rather than dividing each of the control blocks into the prediction blocks such that the prediction blocks have different sizes.