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:
Mar. 19, 2002
Filed:
Jan. 28, 1999
Yi-Jen Chiu, Holmdel, NJ (US);
John Hartung, Warren, NJ (US);
Arnaud Eric Jacquin, New York, NY (US);
Robert James Safranek, New Providence, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A method of encoding a video sequence including a sequence of video images includes first comparing elements of a portion of a first video image (e.g., pixels of a macroblock of a current frame) with elements of a portion of a second video image (e.g., corresponding pixels of a macroblock of a previous frame) to generate respective intensity difference values for the element comparisons. Then, a first value (e.g., one) is assigned to the intensity difference values that are above a visually perceptible threshold value and a second value (e.g., zero) is assigned to the intensity difference values that are at or below the visually perceptible threshold value. Next, the method includes summing the first and second values to generate a sum. If the sum is greater than a predetermined decision value, the portion of the first video image is encoded (e.g., motion compensated). The method is fully compatible and, thus, may be implemented with video standards such as, for example, H.261, H.263, Motion-JPEG, MPEG-1, and MPEG-2.