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:
Apr. 17, 2012
Filed:
Jun. 13, 2005
Junxian Wang, Heng Mui Kang Terrace, SG;
How Lung Eng, Heng Mui Kang Terrace, SG;
Siew Wah Alvin Harvey Kam, Heng Mui Kang Terrace, SG;
Wei Yun Yau, Heng Mui Kang Terrace, SG;
Junxian Wang, Heng Mui Kang Terrace, SG;
How Lung Eng, Heng Mui Kang Terrace, SG;
Siew Wah Alvin Harvey Kam, Heng Mui Kang Terrace, SG;
Wei Yun Yau, Heng Mui Kang Terrace, SG;
Agency for Science, Technology and Research, Centros, SG;
Abstract
A background image is generated based on a captured image. A data cluster is formed in pixel blocks of the background image using at least one feature of pixels in the pixel blocks. A data cluster formed in each pixel block includes a data distribution having a mean value and a standard deviation from the mean value. After generating the background image, each pixel of a subsequent captured image is compared with the data cluster of a pixel block of the background image to generate a first discrepancy value. A pixel of a subsequent image is compared with a data distribution of another adjacent pixel block of the background image to generate a second discrepancy value. Based on the discrepancy values, the pixels of the subsequent image are regarded as background or foreground pixels in a binary map, in which connected foreground pixels are marked to form a foreground object.