IP Library › Granted Patent US 12666085
Granted Patent B2
US 12666085 · App. 18/920,912 · Granted Jun 23, 2026

Systems and methods for signaling lens optical correction information in video coding

Inventors: Jonatan Alfred Samuelsson-Allendes (Stochholm, SE); Sachin G. Deshpande (Vancouver, WA)
Assignee: Sharp Kabushiki Kaisha
H04N19/70H04N19/136H04N19/86H04N19/124H04N19/13H04N19/174H04N19/184H04N19/188
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12666085
App. No.
18/920,912
Granted
Jun 23, 2026
Kind
B2
Abstract

A device may be configured to signal an lens optical correction information message. In one example, the lens optical correction information message includes a syntax element identifying a type of vignetting model. The syntax element may identifying a type of vignetting model as a polynomial sixth order model. A device may be configured to receive the lens optical correction information message.

Claims (20)

1 . A device comprising one or more processors configured to:

receive a lens optical correction information message;

parse a first syntax element in the lens optical correction information message, wherein the first syntax element identifies a type of vignetting model, wherein the first syntax element having a value of 0 indicates a polynomial sixth order model as the type of vignetting model;

parse a second syntax element in the lens optical correction information message, wherein the second syntax element is a 25 bit signed integer and a value obtained by dividing a value of the second syntax element by 2 to the power of 24 indicates a value of a first vignetting distortion coefficient from the polynomial sixth order model;

parse a third syntax element in the lens optical correction information message, wherein the third syntax element is a 25 bit signed integer and a value obtained by dividing a value of the third syntax element by 2 to the power of 24 indicates a value of a second vignetting distortion coefficient from the polynomial sixth order model; and

parse a fourth syntax element in the lens optical correction information message, wherein the fourth syntax element is a 25 bit signed integer and a value obtained by dividing a value of the fourth syntax element by 2 to the power of 24 indicates a value of a third vignetting distortion coefficient from the polynomial sixth order model.

2 . The device of claim 1 , wherein the device includes a video decoder.

3 . A device comprising one or more processors configured to:

signal a lens optical correction information message, wherein the lens optical correction information message includes:

a first syntax, wherein the first syntax element identifies a type of vignetting model, wherein the first syntax element having a value of 0 indicates a polynomial sixth order model as the type of vignetting model,

a second syntax element, wherein the second syntax element is a 25 bit signed integer and a value obtained by dividing a value of the second syntax element by 2 to the power of 24 indicates a value of a first vignetting distortion coefficient from the polynomial sixth order model,

a third syntax element, wherein the third syntax element is a 25 bit signed integer and a value obtained by dividing a value of the third syntax element by 2 to the power of 24 indicates a value of a second vignetting distortion coefficient from the polynomial sixth order model, and

a fourth syntax element, wherein the fourth syntax element is a 25 bit signed integer and a value obtained by dividing a value of the fourth syntax element by 2 to the power of 24 indicates a value of a third vignetting distortion coefficient from the polynomial sixth order model.

4 . The device of claim 3 , wherein the device includes a video encoder.

5 . A non-transitory computer-readable storage medium comprising instructions stored thereon that, when executed, cause one or more processors of a device to:

signal a bitstream, wherein the bitstream includes a lens optical correction information message, wherein the lens optical correction information message includes:

a first syntax element, wherein the first syntax element identifies a type of vignetting model, wherein the first syntax element having a value of 0 indicates a polynomial sixth order model as the type of vignetting model,

a second syntax element, wherein the second syntax element is a 25 bit signed integer and a value obtained by dividing a value of the second syntax element by 2 to the power of 24 indicates a value of a first vignetting distortion coefficient from the polynomial sixth order model;

a third syntax element, wherein the third syntax element is a 25 bit signed integer and a value obtained by dividing a value of the third syntax element by 2 to the power of 24 indicates a value of a second vignetting distortion coefficient from the polynomial sixth order model, and

a fourth syntax element, wherein the fourth syntax element is a 25 bit signed integer and a value obtained by dividing a value of the fourth syntax element by 2 to the power of 24 indicates a value of a third vignetting distortion coefficient from the polynomial sixth order model.