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. 12, 2020
Filed:
Feb. 09, 2018
Applicant:
Naoto Shiraishi, Kanagawa, JP;
Inventor:
Naoto Shiraishi, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/124 (2014.01); H04N 19/645 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/63 (2014.01); H04N 19/91 (2014.01); H04N 19/94 (2014.01); H04N 19/85 (2014.01);
U.S. Cl.
CPC ...
H04N 19/124 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/63 (2014.11); H04N 19/645 (2014.11); H04N 19/85 (2014.11); H04N 19/91 (2014.11); H04N 19/94 (2014.11);
Abstract
An image processing device includes circuitry. The circuitry reads YUV image data for each block of a predetermined size; performs discrete wavelet transform on a Y value of a pixel included in a block to obtain a first transformed Y value; multiplies the first transformed Y value by a coefficient used for inversely transforming the first transformed Y value, to calculate a second transformed Y value; and quantizes a U value and a V value included in the block and the second transformed Y value to generate fixed length encoded data.