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:
Dec. 31, 2024
Filed:
Jun. 09, 2023
Sharp Kabushiki Kaisha, Sakai, JP;
Takeshi Chujoh, Sakai, JP;
Tomohiro Ikai, Sakai, JP;
Tomoko Aono, Sakai, JP;
Eiichi Sasaki, Sakai, JP;
Tomonori Hashimoto, Sakai, JP;
Tianyang Zhou, Sakai, JP;
Yukinobu Yasugi, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A video decoding apparatus including a parameter decoding circuit, a prediction parameter derivation circuit, a motion compensation circuit, and a weighted prediction circuit is provided. The parameter decoding circuit is configured to decode a flag and a syntax element. The prediction parameter derivation circuit is configured to derive inter prediction parameters. The motion compensation circuit is configured to generate interpolation images based on the inter prediction parameters and reference pictures. The weighted prediction circuit is configured to derive the weight coefficients using the syntax element, and generate a prediction image using the interpolation images and the weight coefficients. When the flag indicates that the weighted prediction information is present in the slice header, the weighted prediction circuit sets a variable NumWeightL1 indicating a number of weights for a reference picture list 1 to be equal to a value of a variable NumRefIdxActive[1] derived from the slice header.