IP Library Granted Patent US 10,943,378
Granted Patent B2
US 10,943,378 · App. 16/504,521 · Granted Mar 9, 2021

Cylindrical panorama

Inventor: Shane Ching-Feng Hu (Fremont, CA)
Assignee: Altia Systems Inc.
G06T11/60G06K9/52G06T5/006G06T7/0028G06T7/60G06K2009/4666G06T2207/20172G06T2207/20221
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 10,943,378
App. No.
16/504,521
Granted
Mar 9, 2021
Kind
B2
Abstract

A method for generating a panoramic image is disclosed. The method comprises simultaneously capturing images from multiple camera sensors aligned horizontally along an arc and having an overlapping field of view; performing a cylindrical projection to project the captured images from the multiple camera sensors to a cylindrical images; and aligning overlapping regions of the cylindrical images corresponding to the overlapping field of view based on an absolute difference of luminance, wherein the cylindrical projection is performed by adjusting a radius for the cylindrical projection, wherein the radius is adjusted based on a scale factor and wherein the scale factor is calculated based on a rigid transform and wherein the scale factor is iteratively calculated for two sensors from the multiple camera sensors.

Claims (10)

1. A method for generating a panoramic image, comprising:

capturing images simultaneously from each of multiple camera sensors aligned horizontally along an arc and having an overlapping field of view;

performing a cylindrical projection to project each of the captured images from the multiple camera sensors to cylindrical images; and

aligning overlapping regions of the cylindrical images corresponding to the overlapping field of view based on absolute difference of luminance, wherein the cylindrical projection is performed by adjusting a radius for the cylindrical projection, wherein the radius is adjusted based on a scale factor and wherein the scale factor is calculated based on a rigid transform, and wherein the scale factor is iteratively calculated for two sensors from the multiple camera sensors.

2. The method of claim 1 , wherein aligning the overlapping regions and adjusting the radius is performed as an integrated step.

3. The method of claim 2 , wherein said integrated step is part of an iterated calibration process.

4. The method of claim 3 , wherein a correction for lens distortion and the cylindrical projection is combined as a single reverse address map.

5. The method of claim 4 , wherein the single reverse address map is subsampled.

6. The method of claim 1 , further comprising performing seam cut energy measurement techniques on the cylindrical images.

7. The method 6 , further comprising using offset point to maintain a temporary stable seam across the cylindrical images.

Assignments (3)
MERGER Recorded Mar 30, 2026
From: GN AUDIO A/S
To: GN HEARING A/S
Reel/Frame 075299/0225 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2022
From: ALTIA SYSTEMS, INC.
To: GN AUDIO A/S
Reel/Frame 058995/0604 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2020
From: HU, SHANE CHING-FENG
To: ALTIA SYSTEMS INC,
Reel/Frame 051429/0902 →