Patent · US Active

Intra/inter mode decision for predictive frame encoding

US11425371B2 · kind B2 · utility

0Cited by

2References

8Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Soyeb Nagori · Bengaluru, IN
Manu Mathew · Thalore, IN
Pramod Kumar Swami · Bengaluru, IN

Key dates

Filing date	Aug 31, 2020
Grant date	Aug 23, 2022
Priority date	—
Expiry date	Aug 31, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/50
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

This invention predicts that intra mode prediction is more effective for the macroblocks where motion estimation in inter mode prediction fails. This failure is indicated by a large value of the inter mode SAD. This invention performs intra mode prediction for only macro blocks have larger inter mode SADs. The definition of a large inter mode SAD differs for different content. This invention compares the inter mode SAD of a current macroblock with an adaptive threshold. This adaptive threshold depends on the average and variance of the SADs of the previous predicted frame. An adaptive threshold is calculated for each new predictive frame.

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