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:
Aug. 12, 1997
Filed:
Feb. 14, 1996
Jiro Katto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An improved coding performance for wavelet transform coding. The method comprises: two-dimensional wavelet transforming an input picture signal to output transform coefficients; two-dimensionally arranging the transform coefficients; quantizing the arranged transform coefficients; choosing a scanning pattern for the quantized transform coefficients based on the correlation between these coefficients; generating a one-dimensional signal series by scanning the transform coefficients after they are quantized according to a scanning pattern decided in the above step; coding the one-dimensional signal series; and, finally, terminating the coding of the signal series using a symbol indicating the end of scanning.