US 2019/0356830 A1 · IMAGE DISTORTION CORRECTION OF A CAMERA WITH A ROLLING SHUTTER

Abstract

Correcting image distortion during camera motion using a system including a processor and a camera having a rolling shutter. Multiple image frames are captured by the camera equipped with the rolling shutter. The captured image frames include a base image frame and a previous image frame. Multiple time stamps are recorded respectively for multiple corresponding image points in the previous and base image frames. For the corresponding image points, multiple ego-motions are computed responsive to the time stamps of the corresponding image points of the base image frame and the previous image frame to correct the image distortion caused by the rolling shutter.

Claims10

Dependent claims

A system for determining a distance to a point from a rolling shutter camera, the system comprising:

an interface configured to receive, from the rolling shutter camera, a first image and a second image of an environment of the rolling shutter camera, captured while the camera is moving, the difference between capture time of the first and second image being dT;
a processor configured to:
detect a point (x1, y1) in the first image at a time T1, which is the time when a line y1 was captured in the first image;
detect a corresponding point (x2, y2) in the second image at a time T2, which is the time when line y2 was captured in the second image, wherein a difference between the time T2 and the time T1 is not equal to dT;
and
determine the distance to the point at a time T0, which is different than the time T1 or the time T2.

3 more elements

A method for determining a distance to a point from a rolling shutter camera, the method comprising:

receiving, from the rolling shutter camera, a first image and a second image of an environment of the rolling shutter camera, captured while the camera is moving, the different between capture time of the first and second image being dT;
detecting a point (x1, y1) in the first image at a time T1, which is the time when a line y1 was captured in the first image;
detecting a corresponding point (x2, y2) in the second image at a time T2, which is the time when line y2 was captured in the second image, wherein a difference between the time T2 and the time T1 is not equal to dT;
and
determining the distance to the point at a time T0, which is different than the time T1 or the time T2.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/531,425Filed 5 Aug 2019

Priority

21 Feb 2013

Published

21 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04N 23/689
For stable pick-up of the scene, e.g. compensating for camera body vibrations: motion occurring during a rolling shutter mode
H04N 23/68
Control of cameras or camera modules: for stable pick-up of the scene, e.g. compensating for camera body vibrations
H04N 23/6811
Motion detection: based on the image signal
H04N 23/683
Vibration or motion blur correction: performed by a processor, e.g. controlling the readout of an image memory

Family

Application61/767,332Us provisional application · filed 21 Feb 2013

Application14/185,217Continuation · filed 20 Feb 2014

Application15/055,723Continuation · filed 29 Feb 2016

Application16/132,730Continuation · filed 17 Sep 2018

Application16/531,425Continuation

US 10,079,975 B2Related patent

US 10,834,324 B2Related patent

US 2014/0232887 A1Published application

US 2016/0182793 A1Published application

US 2019/0089888 A1Published application

US 9,277,132 B2Related patent

US 2019/0356830 A1This patent

From the US filing history. Foreign family members aren’t listed.

Image distortion correction of a camera with a rolling shutter

Life of this patent

Image distortion correction of a camera with a rolling shutter

Life of this patent

Abstract

Claims10