Calibration method and equipment for an optical perspective augmented reality display
An augmented reality and display technology, applied in the field of communications, can solve problems such as insufficient robustness, inability to obtain cameras, and accuracy effects, and achieve the effects of improving user experience, high calibration accuracy, and improving accuracy.
Active Publication Date: 2019-04-12
HISCENE INFORMATION TECH CO LTD
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Problems solved by technology
Common camera calibration methods include the traditional marking method and self-calibration method. The traditional calibration method needs to use a calibration reference object for camera calibration. The self-calibration method has low calibration accuracy and insufficient robustness. Timing is generally unable to obtain video
The optical perspective calibration method based on the above-mentioned camera calibration, due to its own defects, the accuracy of the calibration is affected when performing optical perspective calibration, and it is impossible to obtain reliable guarantees
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[0029] The application will be described in further detail below in conjunction with the accompanying drawings.
[0030] In a typical configuration of this application, the terminal, the device serving the network, and the trusted party all include one or more processors (such as a central processing unit (Central Processing Unit, CPU)), an input / output interface, a network interface, and a memory .
[0031] Memory may include non-permanent memory in computer-readable media, random access memory (Random Access Memory, RAM) and / or non-volatile memory, such as read-only memory (Read Only Memory, ROM) or flash memory (flash RAM). Memory is an example of computer readable media.
[0032] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples o...
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The invention aims to provide a calibration method for an optical perspective augmented reality display, and the method comprises the steps: enabling a display device to present a group of corresponding mark information at different positions of a display device in the optical perspective augmented reality display, and enabling the group of mark information to comprise at least six pieces of markinformation; obtaining a group of point pair coordinate information when each piece of mark information in the group of mark information is aligned with the corresponding preset mark information, thegroup of point pair coordinate information comprising at least six pieces of point pair coordinate information; and according to the group of point pair coordinate information, determining an internalparameter and an external parameter corresponding to a virtual camera, the virtual camera comprising a camera corresponding to a pinhole model composed of a to-be-calibrated monocular and the displaydevice. The method for solving the internal parameters and the external parameters of the camera is high in precision and good in effect.
Description
technical field [0001] The present application relates to the communication field, and in particular to a calibration technology for an optical see-through augmented reality display. Background technique [0002] Camera calibration is the process of establishing the geometric imaging model of the camera, describing the relationship between the pixel position of the image and the position of the scenic spot in the space coordinate system, and finally determining the internal and external parameters of the camera and other information. Camera calibration technology is an essential step in the field of computer vision to extract three-dimensional spatial information from two-dimensional image information, and has been widely used in the fields of target tracking and recognition, navigation, visual monitoring and three-dimensional reconstruction. The accuracy of camera calibration directly affects the effects of navigation, visual monitoring and 3D reconstruction, and is also th...
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IPC IPC(8): G06T7/80
CPCG06T7/80
Inventor 廖春元潘思霁郭安琪张晓恬石坚白
Owner HISCENE INFORMATION TECH CO LTD