Title:
【発明の名称】テレビジョン画像における運動の測定方法及び装置
Document Type and Number:
Japanese Patent JP2609263
Kind Code:
B2
Abstract:
PCT No. PCT/GB87/00796 Sec. 371 Date Jan. 19, 1988 Sec. 102(e) Date Jan. 19, 1988 PCT Filed Dec. 23, 1986 PCT Pub. No. WO87/05769 PCT Pub. Date Sep. 24, 1987.A correlation surface is derived by phase correlating two pictures selectively displaced in the X and Y directions. The illustrative surface shows a large peak at zero displacement, corresponding to a stationary background, and a fairly large peak corresponding to a moving object, the X, Y position of the peak indicating the magnitude (pixels per field period) and direction of the motion vector. A set of motion vectors is thus determined and testing is then carried out, on a pixel by pixel basis or pixel block by pixel block basis, to determine which of the motion vectors gives the best match in deriving the second picture from the first. The motion vector thus assigned may be used in temporal interpolation of the pictures.
Inventors:
Thomas, Graham A.
Application Number:
JP50040987A
Publication Date:
May 14, 1997
Filing Date:
December 23, 1986
Export Citation:
Assignee:
BRITISH BROADCASTING CORP (GB)
International Classes:
H04N5/21; G06T7/20; H04N5/14; H04N7/01; H04N7/015; H04N7/12; H04N7/26; H04N7/36; H04N7/46; H04N9/64; H04N11/02; H04N11/16; H04N11/24; (IPC1-7): H04N7/01; G06T7/20; H04N5/21
Domestic Patent References:
| JP61105178A |
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)