Global Patent Index - EP 1086591 A1

EP 1086591 A1 2001-03-28 - MOTION ESTIMATION

Title (en)

MOTION ESTIMATION

Title (de)

BEWEGUNGSSCHÄTZUNG

Title (fr)

ESTIMATION DE MOUVEMENT

Publication

EP 1086591 A1 (EN)

Application

EP 00920556 A

Priority

  • EP 0002583 W
  • US 28716199 A
  • US 28716599 A

Abstract (en)

[origin: WO0064182A1] A method for determining a best match between a first pixel array in a picture currently being encoded and a plurality of second pixel arrays in a search region of a reference picture, wherein each of the first and second pixel arrays includes a plurality of rows and columns of individual pixel values. The method is designed to be performed in a motion estimation search engine of a digital video encoder, and includes the steps of producing a first orthogonal-sum signature of the first pixel array (M1) comprised of a set of horizontal sums (S1H-S16H) representative of the sums of the individual pixel values of the rows of the first pixel array and a first set of vertical sums (S1V-S16V) representative of the sums of the individual pixel values of the columns of the first pixel array; producing a plurality of second orthogonal-sum signatures for respective ones of at least selected ones of the plurality of second pixel arrays, each of the plurality of second orthogonal-sum signatures being comprised of a set of horizontal sums (S1H-S16H) representative of the sums of the individual pixel values of the rows of a respective one of the second pixel arrays and a set of vertical sums (S1V-S16V) representative of the sums of the individual pixel values of the columns of a respective one of the second pixel arrays.

IPC 1-7 (main, further and additional classification)

H04N 7/26

IPC 8 full level (invention and additional information)

H04N 7/32 (2006.01); H04N 7/26 (2006.01); H04N 7/46 (2006.01)

CPC (invention and additional information)

H04N 19/59 (2014.11); H04N 19/43 (2014.11); H04N 19/51 (2013.01)

Citation (search report)

See references of WO 0064182A1

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

WO 0064182 A1 20001026; CN 1201589 C 20050511; CN 1314052 A 20010919; EP 1086591 A1 20010328; JP 2002542737 A 20021210

INPADOC legal status


2006-11-02 [18W] WITHDRAWN

- Effective date: 20060925

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE ES FR GB IT

2001-06-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010426

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE