Motion vector search apparatus and method

Details Motion vector search apparatus and method Motion vector search apparatus and method

Filed on

2007-06-26

Date issued

2007-06-26

Examiner

Vo, Tung (Department: 2621)

Patent Class

Pulse or digital communications

SubClass

Bandwidth reduction or expansion

SubSubClass

Television or motion video signal

Type

Reexamination Certificate

Status

active

Patent number

10431784

Description

ABSTRACT:
A motion vector search apparatus and method that search for inter-frame motion vectors of motion pictures are provided. The motion vector search apparatus and method involve: inputting a search target frame to be coded; inputting as a reference frame a frame on which a motion vector search has been performed; by using each of a plurality of specific blocks set within the search target frame and each corresponding one of reference blocks set within the reference frame, performing a block matching for each of the specific blocks within a predetermined range of the reference frame; determining a search pattern for a motion vector for the entire frame according to block matching results for the plurality of specific blocks; by using the search pattern determined, executing a block matching in predetermined units of blocks on the inputted search target frame to be encoded; and generating motion vectors.

REFERENCES:
patent: 5161247 (1992-11-01), Murakami et al.
patent: 5818969 (1998-10-01), Astle
patent: 6269174 (2001-07-01), Koba et al.
patent: 2003/0123550 (2003-07-01), Wang et al.
patent: 2003/0161400 (2003-08-01), Dinerstein et al.
patent: 2005/0238103 (2005-10-01), Subramaniyan et al.

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