Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Patent
1998-08-26
2000-11-28
Britton, Howard
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
348413, 348416, 348699, H04N 712, H04N 514, H04B 166
Patent
active
061544914
ABSTRACT:
The first and second fields of an interlaced reference picture are subsampled in the same phase in the horizontal direction to produce a primary search reference picture. The first and second fields of an interlaced motion vector detecting picture are subsampled in different phases to produce a primary search motion vector detecting picture. From the primary search reference picture is extracted a primary search reference block which is similar to a primary search motion vector detecting block which is a partial area in the primary search motion vector detecting picture. A search is made for a candidate field motion vector associated with the primary search reference block. A secondary search is made with the candidate motion vector taken as the search center, thereby detecting final field and frame motion vectors.
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Britton Howard
Kabushiki Kaisha Toshiba
Vo Tung
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