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:
Mar. 31, 2026
Filed:
Aug. 20, 2024
Sharp Kabushiki Kaisha, Sakai City, JP;
Frank Bossen, Vancouver, WA (US);
Eiichi Sasaki, Sakai City, JP;
Yukinobu Yasugi, Sakai City, JP;
Tomohiro Ikai, Sakai City, JP;
SHARP KABUSHIKI KAISHA, Sakai City, JP;
Abstract
A moving image decoding method for deriving a prediction image of a chrominance image by using a luminance image is provided. The method derives a first luminance value and a first chrominance value corresponding to a first position, and derives a second luminance value and a second chrominance value corresponding to a second position. The method further derives a first difference value between the first and second luminance values, and derives a second difference value between the first and second chrominance values. The method sets a shift value to a first threshold based on a comparison between the first threshold and a third value, being calculated by adding a first specified value to a first value, derived by using the first difference value, and then subtracting a second value, derived by using the second difference value, from an addition result, and derives the prediction image by using the shift value.