US 7,587,065 B2
Image analysis method, analyzing movement of an object in image data
Nobuyuki Matsumoto, Kawasaki (Japan); Osamu Hori, Yokohama (Japan); Takashi Ida, Kawasaki (Japan); and Hidenori Takeshima, Ebina (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan)
Filed on Mar. 03, 2008, as Appl. No. 12/41,247.
Application 12/041247 is a division of application No. 10/638806, filed on Aug. 12, 2003, abandoned.
Claims priority of application No. 2002-281206 (JP), filed on Sep. 26, 2002; and application No. 2003-136385 (JP), filed on May 14, 2003.
Prior Publication US 2008/0175441 A1, Jul. 24, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. G06K 9/00 (2006.01)
U.S. Cl. 382—103  [382/107] 2 Claims
OG exemplary drawing
 
1. An image analysis method comprising:
using a computer to perform the following operations of:
inputting time-series image data;
generating time-series object image data by extracting object regions from the time-series image data, wherein the object regions are extracted such that differences between frames of the time-series image data are computed, and regions of large differences are digitized;
computing a position of a center of gravity in each of the object regions, to thereby compute multiple respective centers of gravity;
synthesizing, for each of the multiple centers of gravity, a respective additional line indicative of the position of a respective of the multiple centers of gravity, with the object image data; and
analyzing motion of an object from the time-series object image data.