Apparatus for interpolating pixel motion vectors in control grid interpolation decoder

摘要

The present invention relates to a device for interpolating the motion vectors of the respective pixels between the control points from the motion vector of the received control point in the image decoder according to the control grid interpolation. The device of the present invention, but receives the motion vector of the control points forming the input vector having a predetermined size around the current block of the control point motion vector input to form the motion vectors of the 2 x 2 control points around the current block as input vector vector forming section; Vector classifier to provide a discontinuous pattern to determine the input vector inputted from the input vector forming section according to a predetermined (LBG) algorithm; And the current, but receives the block of the control point motion vector interpolating pixels between the control points according to a discontinuous pattern to provide the vector classifier, the pixel of the motion between the control points by extrapolation on if there is bulyeonsokseon inside the current block vector to obtain it characterized by including the interpolation. The present invention in cases where motion estimation is applied to the control grid interpolation (CGI) how the video encoding techniques, each of the interpolation After determining the block pattern of the block in accordance with the pattern using the vector classifier in block formed of the control point by applying the method of interpolating the pixels between the control point can be more precisely to improve the quality of motion estimation.