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Method and arrangement for calibration of cameras

A camera, stereo camera technology, applied in image data processing, instruments, electrical components, etc., can solve problems such as large computing performance and complex methods

Inactive Publication Date: 2018-09-14
COGNIMATICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These known methods are very complex and require considerable computational performance or additional reference

Method used

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  • Method and arrangement for calibration of cameras
  • Method and arrangement for calibration of cameras
  • Method and arrangement for calibration of cameras

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Embodiment Construction

[0022] The disclosed embodiments will now be described more fully hereinafter with reference to the accompanying drawings that illustrate specific embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will convey to those skilled in the art person fully conveys the scope of the invention. Like numbers refer to like elements throughout.

[0023] Although the embodiments disclosed herein will focus on a camera in a vehicle, such as a bus or any other transportation vehicle, the teachings herein are applicable to other situations as well. The disclosed methods and systems can be applied to any situation where the cameras of a stereo camera arrangement can be calibrated. The methods and systems disclosed herein are not limited to application to any pa...

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Abstract

A first image from the first camera is received (300), and a second image is received (302) from the second camera, wherein both the first image and the second image comprise an overlap. Furthermore,one or more candidate points of the first image is determined (304) in the overlap, and one or more candidate points of the second image is determined (306) in the overlap. Moreover, the candidate points of the first image are matched (308) with the candidate points of the second image and pairs of corresponding candidate points are determined. A homography of the first camera is calculated (310)based on the pairs of corresponding candidate points and a homography of the second camera is calculated based on the pairs of corresponding candidate points. The first camera is calibrated (312) by adjusting an intrinsic parameter or an extrinsic parameter of the first camera, based on the calculated (310) homography of the first camera. The second camera is calibrated (312) by adjusting an intrinsic parameter or an extrinsic parameter of the second camera, based on the calculated (310) homography of the second camera.

Description

technical field [0001] The present disclosure relates to camera devices, and more particularly, to a method of performing calibration of cameras in a stereo camera device. Background technique [0002] With the advent of digital camera technology, the use of cameras for a variety of purposes has become popular. Today's cameras are widely used not only to take pictures but also for new purposes. Surveillance of public areas or private property using cameras has become popular. Digital camera technology is also suitable for surveillance, navigation, etc. Computer vision is the field of technology that utilizes stereoscopic camera setups to image a scene. [0003] Two cameras are used in a stereo camera arrangement to produce a 3D (three-dimensional) image or model of an environment or scene. In a stereo camera setup the two cameras are oriented towards the scene according to two different directions and there is a distance between the cameras. By employing multiple angle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/00H04N13/239H04N23/90
CPCH04N13/239H04N13/246H04N1/00G06T7/74G06T7/85G06T7/13
Inventor R·贝蒂尔松S·多夫纳H·奥尔多
Owner COGNIMATICS