Motion compensation method and device using bidirectional optical flow
地域：
Seoul
摘要
Disclosed herein is a method for adaptive bidirectional optical flow estimation for inter-screen prediction compensation during video encoding. The method aims to reduce complexity and/or cost of bidirectional optical flow (BIO) at a pixel level or a subblock level.
說明書
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where D1 and D5 denote horizontal complexity and vertical complexity, respectively, and CU denotes a set of pixel positions in the first reference block and the second reference block corresponding to the positions of the respective pixels in the current block. [i, j] denotes a position in the first reference block and the second reference block corresponding to each pixel in the current block. And d1(i, j) and d5(i, j) may be calculated by Equation 15. d1=(Ix(0)(i, j)+Ix(1)(i, j))2 d2=(Ix(0)(i, j)+Ix(1)(i, j))(Iy(0)(i, j)+Iy(1)(i, j))
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