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Camera auto-calibration with gyroscope

A technology of gyroscope and camera, applied in the field of automatic camera calibration using gyroscope, can solve the problems of not supporting the subsequent calibration of the camera, increasing the manufacturing process, etc.

Pending Publication Date: 2019-09-20
QUALCOMM INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this calibration adds to the manufacturing process and does not support subsequent calibration of the camera

Method used

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  • Camera auto-calibration with gyroscope
  • Camera auto-calibration with gyroscope
  • Camera auto-calibration with gyroscope

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Embodiment Construction

[0020] Various embodiments will be described in detail with reference to the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. References made to particular examples and implementations are for illustrative purposes and are not intended to limit the scope of the claims.

[0021] Various embodiments include a method for calibrating a camera that does not require a known target that can be implemented on a processor of an electronic device. Various embodiments may include a gyroscope configured to measure how a camera is moving, wherein camera calibration parameters may be determined by comparing the motion of an object over successive image frames captured by the camera with corresponding gyroscope readings. Calibration parameters determined by the calibration method can be used to process raw image data from the camera to produce a digital image. The calibration parameters can be used...

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Abstract

Embodiments include devices and methods for automatically calibrating a camera. In various embodiments, an image sensor may capture an image. Locations of one or more points including in the captured image frames may be predicted and detected. Calibration parameters may be calculated based on differences between predicted locations of a selected point within an image frame and observed locations of the selected point within the captured image frame. The automatic camera calibration method may be repeated until the calibration parameters satisfy a calibration quality threshold.

Description

[0001] related application [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 459,879, filed February 16, 2017, entitled "Camera Auto-Calibration with Gyroscope," which is hereby incorporated by reference in its entirety. Background technique [0003] In order to process digital images, cameras included in electronic devices need to be calibrated. Typically, the camera has been calibrated at the manufacturer of the electronic device. However, this calibration adds to the manufacturing process and does not support subsequent calibration of the camera. Contents of the invention [0004] Various embodiments include a method for calibrating a camera and an electronic device having a processor for implementing the method. Various embodiments may include: receiving a first image frame; selecting at least one point in the first image frame; receiving a second image frame; determining a position of the at least one point in the second image frame; ...

Claims

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Application Information

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IPC IPC(8): G06T7/80
CPCG06T2207/10024G06T7/80H04N17/002G06T2207/10016G06T7/73G06T2207/20024
Inventor C·宋G·麦格拉思C·布伦纳
Owner QUALCOMM INC
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