Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Patent
1994-12-13
2000-08-22
Rao, Andy
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
348416, 348413, 348415, 348699, H04N 718
Patent
active
06108378&
ABSTRACT:
The computation-intensive task of motion estimation for video signals is performed by block search methods using apparatus of reduced complexity. Motion estimation is performed by analyzing only specific bits, e.g. one or two MSBs, of the picture element values. These bits are logic-linked by means of EXOR and/or EXNOR functions, and the individual results for different block positions of a current block within a search window are combined. The respective motion vector for the current block is determined by using a minimum or maximum comparison.
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Burke Alexander J.
Deutsche Thomson-Brandt GmbH
Kurdyla Ronald H.
Rao Andy
Tripoli Joseph S.
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