Patent · US Active

Adaptive anchor frame and quantization parameter decision in video coding

US10638127B2 · kind B2 · utility

0Cited by

0References

26Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Yang Yu · Acton, US
In Suk Chong · San Diego, US
Xianglin Wang · Santa Ana, US
Prasanjit Panda · San Diego, US
Mayank Tiwari · Chilpur, IN
Marta Karczewicz · San Diego, US
Shashidhar Jangili · Hyderabad, IN

Key dates

Filing date	May 11, 2018
Grant date	Apr 28, 2020
Priority date	—
Expiry date	May 11, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/91
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

This disclosure describes techniques for achieve high coding efficiency by periodically encoding anchor frames with a lower Quantization Parameter (QP) to provide better prediction for the following frames. Techniques include adaptively deciding which frames are encoded with lower QP by use of the collected encoding statistics via an encoding scheme with or without rate control.

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