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:
May. 26, 1987
Filed:
Apr. 25, 1985
Akihiro Furukawa, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A motion-adaptive interpolation method for a motion video signal includes the steps of computing a representative motion vector of a moving object by using a certain number of motion vectors, and implementing a modification of the representative motion vector such that a variation of the representative motion vector at a present frame period with respect to the representative motion vector at a previous frame period is limited to a predetermined range, thus increasing the number of the frames per unit of time by using the modified representative motion vector. Further, a device for implementing the motion-adaptive interpolation includes motion estimation circuitry for evaluating an estimated motion of the motion video signal. The motion estimation circuitry has a function to compute the representative motion vector by using original motion vectors, a function to implement a modification of the representative motion vector so as to limit its variation of a present representative motion vector with respect to a previous one, and a function to create a motion vector for motion-adaptive interpolation. Thus, it is possible to provide an excellent smooth movement reproduction and high resolution in the moving area within the frame of the motion video signal.