Patent · US Active

Motion vector predictive encoding method, motion vector predictive decoding method, moving picture encoding apparatus, moving picture decoding apparatus, and programs thereof

US9838709B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

NIPPON TELEGRAPH AND TELEPHONE CORPORATION · JP

Inventors

Masaki Kitahara · Ozu, JP
Atsushi Shimizu · Fuchu, JP
Mayuko Watanabe · Musashino, JP

Key dates

Filing date	Feb 7, 2011
Grant date	Dec 5, 2017
Priority date	—
Expiry date	Feb 11, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/56
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a moving picture encoding apparatus, a primary candidate reference motion vector-setting unit sets N primary candidate reference motion vectors. A degree of reliability calculation unit calculates the reliability of each primary candidate reference motion vector, which represents effectiveness in predicting a motion vector of a block to be decoded, using coded or decoded image information. A reference motion vector determination unit selects M (M<N) secondary candidate reference motion vectors in accordance with degree of reliability from among the N primary candidate reference motion vectors. A motion vector prediction unit creates a predictive motion vector of a block to be coded using M secondary candidate reference motion vectors with high reliability.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.