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:
Nov. 12, 2013
Filed:
Feb. 16, 2012
Mikio Sasaki, Kariya, JP;
Mikio Sasaki, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A moving object detection apparatus generates frame difference image data each time a frame data is captured, based on the captured frame data and previous frame data, and such frame difference image data is divided into pixel blocks. Subsequently, for each of the pixel blocks a discrete cosine transformation (DCT), a two-dimensional DCT coefficient is calculated, and such two-dimensional DCT coefficients are accumulated and stored. The value of each element of the two-dimensional DCT coefficient is arranged to form a characteristic vector, and, for each of the pixel blocks at the same position of the frame difference image data, the characteristic vector is generated and then such characteristic vector is arranged to form a time-series vector. The time-series vector derived from moving-object-capturing pixel blocks is used to calculate a principal component vector and a principal component score.