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. 07, 1996
Filed:
Sep. 27, 1994
Eri Murata, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A frame difference accumulator accumulates differences between the present frame and the previous frame of an input video signal in each block and outputs an accumulated value of each block. A motion detector detects a candidate motion vector and an evaluation function value of the candidate motion vector in each block. A region detector outputs a threshold selection control signal on the basis of the accumulated value. A threshold selector selects one of a low threshold and a high threshold as a selected threshold in each block. A comparing section compares a difference between the accumulated value and the evaluation function value with the selected threshold and outputs a vector selection control signal. A vector selector selects one of a zero vector and the candidate motion vector as a motion vector of each block.