The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Mar. 06, 2003
Shunsuke Kamijo, Meguro, JP;
Masao Sakauchi, Meguro, JP;
Shunsuke Kamijo, Meguro, JP;
Masao Sakauchi, Meguro, JP;
Fujitsu Limited, Kawasaki, JP;
The Foundation for the Promotion of Industrial Science, Tokyo, JP;
Abstract
Each frame of time-series pictures shot by a camera is converted to a spatial differential frame picture by the following equations:()=Σ|()−()|/(max/max),max/{exp(−0.02(where Σ denotes a sum over di=−1 to 1 and dj=−1 to 1, Gi,j,max denotes the maximum pixel value of 3×3 pixels having its center at the i-th row and j-th column, and Gmax denotes the assumable maximum value 255 of the pixel value G(i, j). Moving objects at a time t is discriminated based on a correlation between spatial differential frame pictures at times (t−1) and t and a discrimination result of moving objects included in the spatial differential frame picture at the time (t−1).