Video encoding/decoding method and device
摘要
說明書
In reference to
The reference region may mean a peripheral region which is spatially adjacent to a current block and a pre-reconstructed region before a current block. The reference region may include one or more reference lines. For example, a reference region may include at least one of a first reference line, a second reference line, a third reference line or a fourth reference line. Herein, a first reference line may mean a reference line adjacent to the left and/or the top of a current block and a second reference line may mean a reference line adjacent to the left and/or the top of a first reference line. A third reference line may mean a reference line adjacent to the left and/or the top of a second reference line and a fourth reference line may mean a reference line adjacent to the left and/or the top of a third reference line.
A current block may be intra-predicted by using the predetermined number of reference lines. The number of reference lines 1) may be the fixed number which is pre-promised in an encoding/decoding device or 2) may be the number derived in a decoding device based on an encoding parameter or 3) information on the number may be encoded and signaled in an encoding device. The number may be determined by using any one of the above-described embodiments 1) to 3) or may be derived based on a combination of at least two of embodiments 1) to 3). The number of the determined reference lines may be 0, 1, 2, 3, 4, or more.
