发明名称 |
Half-pixel interpolation for a motion compensated digital video system. |
摘要 |
<p>A scheme is provided for processing previous frame data in a motion compensated digital video system to interpolate pixels used in reconstructing a current video frame. Pixel data from a previous video frame is arranged into sub-blocks containing a plurality N of pixels. The sub-blocks are stored in a memory to enable the retrieval of at least one sub-block per memory access cycle. A plurality M of sub-blocks are retrieved from the memory in response to a displacement vector associated with a portion of a current video frame. M is less than or equal to N and the M sub-blocks are retrieved in no more than M memory access cycles. A subset of pixels is chosen from the selected plurality of sub-blocks for use in interpolating pixels for the current video frame portion. The subset of pixels is processed over no more than N memory access cycles to provide N interpolated pixels for the current video frame portion. <IMAGE></p> |
申请公布号 |
EP0613304(A2) |
申请公布日期 |
1994.08.31 |
申请号 |
EP19940100647 |
申请日期 |
1994.01.18 |
申请人 |
GENERAL INSTRUMENT CORPORATION OF DELAWARE;NEXTLEVEL SYSTEMS, INC. |
发明人 |
LIU, VINCENT;FOX, JOHN |
分类号 |
H04N7/32;G06T1/60;H04N5/14;H04N7/26;(IPC1-7):H04N7/137 |
主分类号 |
H04N7/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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