Title:
ビデオデータを安定させるための方法及びシステム
Document Type and Number:
Japanese Patent JP4427551
Kind Code:
B2
Abstract:
The invention relates to a method for stabilizing a video recording of a scene made by a video camera and represented by video data, said method comprising the steps of subdividing said video data into a plurality of successive frames themselves divided into a plurality of blocks, determining for each block of each frame a motion vector representing the direction and magnitude of the motion in said block, said vector at an instant t being called global motion vector GMV(t) and representing said motion at the instant t with respect to the previous frame, defining a modified vector called integrated motion vector IMV(t) at the instant t and designating the final motion vector correction to be applied to the current frame in view of its motion correction, said integrated motion vector being given by the expression:IMV(t) = GMV(t)+a(E). WIV(t-1) where a(E) is a variable adaptive factor depending on an expression E and IMV(t-1) is the integrated motion vector corresponding to the previous current frame, and modifying the video data according to the modified integrated motion vectors defined for each successive current frame.
Inventors:
Oberget, Stephane
Application Number:
JP2006546387A
Publication Date:
March 10, 2010
Filing Date:
December 17, 2004
Export Citation:
Assignee:
NXP B.V.
International Classes:
H04N5/232
Domestic Patent References:
| JP3198488A | ||||
| JP7284016A | ||||
| JP7023276A | ||||
| JP7115584A | ||||
| JP2001197360A |
Attorney, Agent or Firm:
Kenji Sugimura
Tatsuya Sawada
Tatsuya Sawada