Title:
ディジタルビデオ画像をサイズ変更する方法および装置
Document Type and Number:
Japanese Patent JP4643781
Kind Code:
B2
Abstract:
A method and apparatus for resizing a digital video image composed of a plurality of source pixels which are resized to a plurality of target pixels using a technique which comprises: expressing the point brightness energy associated with each source pixel as an area which spans two source pixel intervals, each said area span having a shape which is proportional to the energy distribution of the source pixel with time; creating for each target pixel a sample aperture of duration which is a function of the resizing factor; sampling the area spans with each sample aperture to provide, for each target pixel, a set of coefficients, each coefficient representing the proportion of an area span which is within the sample aperture; and scaling, with its associated coefficient, the amount of point brightness energy of each source pixel whose area span appears within any given sample aperture, to provide the amount of point brightness energy from that source pixel to be assigned to the target pixel of that aperture.
Inventors:
Peter Lionel Smith
Application Number:
JP32966699A
Publication Date:
March 02, 2011
Filing Date:
November 19, 1999
Export Citation:
Assignee:
RG Systems, Inc.
International Classes:
G09G5/36; H04N5/262; G06T3/40; H04N1/393
Domestic Patent References:
| JP10134175A | ||||
| JP2000207391A | ||||
| JP6333036A | ||||
| JP3156579A | ||||
| JP8331377A | ||||
| JP8249462A |
Other References:
PING WAH WONG等,"AREA-BASED INTERPOLATION FOR SCALING OF IMAGES FROM A CCD",PROCEEDINGS OF INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, SANTA BARBARA, CA,米国,IEEE COMPUTER SOCIETY,1997年10月26日,VOL.1,P.905-908
Attorney, Agent or Firm:
Longhua International Patent Service Corporation