发明名称 |
ANORDNING FOR ROM/TIDS-FORHOLD SUB-SAMPLING AV DIGITALE VIDEOSIGNALER, SYSTEM FOR TRANSMISJON AV HOEYDEFINISJONS-FJERNSYNSBILDER INNBEFATTENDE EN SLIK ANORDNING, OG EMISJONS- OG MOTTAGERTRINN FOR ET SLIKT SYSTEM. |
摘要 |
Device for the space-time sub-sampling of digital video signals representative of a sequence of pictures which are interlaced or sequential and are divided into blocks of m x n points (m and n being positive integers), the said device comprising in series a circuit (201) for spatial prefiltering of the said sequence of pictures and intended to deliver a sequence of sequential pictures which are limited in bandwidth, a circuit (203) for spatial sub-sampling, and a time sub-sampling circuit (202), characterised in that it further comprises a motion-estimating stage (204) itself comprising means for delivering, on the one hand, signals corresponding to the pictures of order 2k and 2k + 2 and, on the other hand, signals corresponding to the pictures of order 2k + 1, and motion-estimating means intended to deliver, on the basis of the said signals, one or more items of information on motion of the picture of order 2k + 1 in relation to the pictures of order 2k and 2k + 2 which enclose it. |
申请公布号 |
NO890707(D0) |
申请公布日期 |
1989.02.20 |
申请号 |
NO19890000707 |
申请日期 |
1989.02.20 |
申请人 |
PHILIPS' GLOEILAMPENFABRIEKEN, NV |
发明人 |
HAGHIRI, MOHAMMED REZA;GUNTZBURGER, PHILIPPE;FONSALAS, FREDERIC;QUEAU, MARCEL LE |
分类号 |
H04N7/015;H04N7/12;H04N7/24;H04N7/46;(IPC1-7):H04N/ |
主分类号 |
H04N7/015 |
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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