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. 15, 1998
Filed:
Jan. 07, 1997
Russell L Andersson, Manalapan, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Compensating for color variations affecting color detection by a video system. In one aspect, compensation for highlights of a prop having multiple color regions is provided. The prop is preferably designed so that every color region of the prop is affected by highlights at the same rate. The color mix ratio for a color region of the prop representing the deviation of the color region from a nominal color value is computed, and an expected color for each color region of the prop is then computed based on the color mix ratio. In another aspect, compensation for variations in a light source illuminating the environment detected by the video system are provided in combination with highlight compensation. A white color balance ratio for a frame of video data is estimated, the color ratios of background white pixels are detected and these ratios are then used to continually update the estimate of the white color balance ratios.