| 摘要 |
PROBLEM TO BE SOLVED: To improve coding efficiency according to an image characteristic via a new intra prediction method using pixels adjacent to a current prediction unit.SOLUTION: In an intra prediction method, a prediction value of a current sample is determined based on a reference sample which is used for predicting the current sample and includes a first corner adjacent sample, a second corner adjacent sample, a first side face adjacent sample and a second side face adjacent sample. The first corner adjacent sample is located at an intersection of a row adjacent to an upper side face of a current block including the current sample and a column adjacent to a right side face of the current block, the second corner adjacent sample is located at an intersection of a row adjacent to a lower side face of the current block and a column adjacent to a left side face of the current block, the first side face adjacent sample is located at an intersection of a row where the current sample is located and a column adjacent to a left side face of the current block, and the second side face adjacent sample is located at an intersection of a row adjacent to an upper side face of the current block and a column where the current sample is located. |
