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:
Feb. 28, 2006
Filed:
Feb. 01, 2000
Vinay Agarwala, San Jose, CA (US);
Clement Tse, Fremont, CA (US);
Vinay Agarwala, San Jose, CA (US);
Clement Tse, Fremont, CA (US);
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
A system for forming composite video images from one or more foreground images and one or more background images. In one embodiment, s sum of a suppressed foreground image signal with weight α, with one or more selected foreground colors suppressed, and a background image signal with weight 1−α' (0≦α′≦1) is formed, where a and α′ may vary from pixel to pixel and with time. In another embodiment, a shadow from a selected foreground image is impressed on selected pixels of a background image. In another embodiment, foreground suppression and shadowing are combined, optionally by retrofitting, using an existing α-mixer or a newly constructed α-mixer. Provision of a chroma key map allows a foreground image shadow to be prescribed pixel by pixel, including a transition region in which the shadowed image slowly disappears.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile