HEVC逆扫描之五：扫描表示例

来源：互联网发布：ip和域名登录编辑：程序博客网时间：2024/05/16 06:13

以8x8亮度块、4x4色度快为例。8x8亮度块像素点扫描表尺寸是8x8，CG扫描表尺寸是2x2；4x4色度块像素点扫描表尺寸是4x4，CG扫描表尺寸是1x1，三种扫描方式的扫描表如下表所示。

扫描方式

分量

像素点/CG

扫描表

对角扫描

亮度

像素点扫描表

0, 8, 1, 16, 9, 2, 24, 17,

10, 3, 25, 18, 11, 26, 19, 27,

32, 40, 33, 48, 41, 34, 56, 49,

42, 35, 57, 50, 43, 58, 51, 59,

4, 12, 5, 20, 13, 6, 28, 21,

14, 7, 29, 22, 15, 30, 23, 31,

36, 44, 37, 52, 45, 38, 60, 53,

46, 39, 61, 54, 47, 62, 55, 63.

CG扫描表

0, 2,

1, 3.

色度

像素点扫描表

0, 4, 1, 8,

5, 2, 12, 9,

6, 3, 13, 10,

7, 14, 11, 15.

CG扫描表

水平扫描

亮度

像素点扫描表

0, 1, 2, 3, 8, 9, 10, 11,

16, 17, 18, 19, 24, 25, 26, 27,

4, 5, 6, 7, 12, 13, 14, 15,

20, 21, 22, 23, 28, 29, 30, 31,

32, 33, 34, 35, 40, 41, 42, 43,

48, 49, 50, 51, 56, 57, 58, 59,

36, 37, 38, 39, 44, 45, 46, 47,

52, 53, 54, 55, 60, 61, 62, 63.

CG扫描表

0, 1,

2, 3.

色度

像素点扫描表

0, 1, 2, 3,

4, 5, 6, 7,

8, 9, 10, 11,

12, 13, 14, 15.

CG扫描表

垂直扫描

亮度

像素点扫描表

0, 8, 16, 24, 1, 9, 17, 25,

2, 10, 18, 26, 3, 11, 19, 27,

32, 40, 48, 56, 33, 41, 49, 57,

34, 42, 50, 58, 35, 43, 51, 59,

4, 12, 20, 28, 5, 13, 21, 29,

6, 14, 22, 30, 7, 15, 23, 31,

36, 44, 52, 60, 37, 45, 53, 61,

38, 46, 54, 62, 39, 47, 55, 63.

CG扫描表

0, 2,

1, 3.

色度

像素点扫描表

0, 4, 8, 12,

1, 5, 9, 13,

2, 6, 10, 14,

3, 7, 11, 15.

CG扫描表

0 0