发明名称 |
Image processing apparatus and method |
摘要 |
An image processing apparatus capable of reducing the amount of memory required for intra-frame prediction is provided. The apparatus includes a processing unit that performs sampling on pixels adjacent to a current block for intra-frame prediction according to a block size of the current block. The processing unit further performs interpolation by using the pixels being sampled to reconstruct the adjacent pixels. The processing unit further performs the intra-frame prediction by using the adjacent pixels being reconstructed to generate a predicted image. |
申请公布号 |
US9405989(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
US201414471487 |
申请日期 |
2014.08.28 |
申请人 |
Sony Corporation |
发明人 |
Ogawa Kazuya |
分类号 |
G06K9/20;G06K9/36;H04N19/593;H04N19/426;H04N19/59;H04N19/44 |
主分类号 |
G06K9/20 |
代理机构 |
Chip Law Group |
代理人 |
Chip Law Group |
主权项 |
1. An image processing apparatus comprising:
a central processing unit (CPU) configured to: perform sampling on neighboring pixels of an image, the neighboring pixels being adjacently located to a current block for intra prediction according to block size of the current block for the intra prediction, wherein the sampling is performed in an event a frequency of a change in a texture pattern of the image is greater than a first predetermined threshold and the block size of the current block is larger than a second predetermined threshold; perform interpolation using the sampled neighboring pixels to reconstruct the neighboring pixels; and perform the intra prediction on a current pixel within the current block using the neighboring pixels as reference pixels for the intra prediction to generate a prediction image. |
地址 |
JP |