发明名称 |
CONDITIONAL MOTION COMPENSATED INTERPOLATION OF DIGITAL MOTION VIDEO |
摘要 |
CONDITIONAL MOTION COMPENSATED INTERPOLATION OF DIGITAL MOTION VIDEO Motion digital video is encoded and decoded by a motion compensated interpolation method and apparatus. In accordance with the method, selected frames of the video are interpolated in the decoder with the aid of interpolation correction codes that are generated in the encoder and sent to the decoder. In an encoder embodiment that interpolates half of the frames, every other frame is encoded and decoded within the encoder. The decoded versions of adjacent frames are appropriately combined and compared to the interleaved camera frame that is to be interpolated in the decoder. The differences, which correspond to "pels correction" information, are encoded and quantized. Those that exceed a predetermined threshold value are added to the encoder's output buffer. The inverse operation is carried out in the decoder. That is every pair of decoded frames is averaged andcombined with the decoded "pels correction" information to form the interpolatedframes. |
申请公布号 |
CA2024135(C) |
申请公布日期 |
1994.11.29 |
申请号 |
CA19902024135 |
申请日期 |
1990.08.28 |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
HASKELL, BARIN G.;PURI, ATUL |
分类号 |
H04N1/415;H04N7/26;H04N7/32;H04N7/36;H04N7/46;H04N7/50;H04N9/77;H04N11/04;(IPC1-7):H04N7/12 |
主分类号 |
H04N1/415 |
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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