Distortion-considering method and distortion-considering device for acquiring shooting parameters
A technology of imaging parameters and acquisition methods, which is applied in the field of acquisition of imaging parameters considering distortion, can solve problems such as measurement result errors, and achieve real-time calculation, fast operation speed, and high precision
Inactive Publication Date: 2013-09-18
BEIJING HAIMI CULTURE MEDIA
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[0012] People have made many discussions on the camera calibration process, but the parameter acquisition process in the process has not yet considered a variety of distortions, and truly reveals the calibration method of the camera imaging parameter relationship, so that the measurement results can be used in the calibration of the camera system. lead to large errors
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[0045] Embodiments of the present invention provide a method and device for acquiring imaging parameters considering distortion. By comprehensively considering various distortions in the parameter acquisition process in the camera calibration process, the parameter relationship that truly reveals the imaging of the camera is obtained, and the measurement results are reduced. The systematic error of the calibration link of the camera system.
[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[00...
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The embodiment of the invention discloses a distortion-considering method and a distortion-considering device for acquiring shooting parameters. The distortion-considering method for acquiring shooting parameters comprises the following steps: acquiring the initial estimation values of the shooting parameters through linear calibration calculation; calculating the initial values of parameters to be optimized according to the initial estimation values of the shooting parameters, and generating shooting parameters according to the initial values of the parameters to be optimized and set distorted parameters. Due to the embodiment of the invention, various distortions are considered during acquiring parameters in the process of calibrating a camera, thus the parameter relationship which really discloses the camera imaging is acquired, and the measuring result error is reduced in the shooting system calibrating step.
Description
technical field [0001] The invention relates to the field of media technology, in particular to a method and device for acquiring camera parameters considering distortion. Background technique [0002] The traditional camera calibration method is characterized by requiring a camera calibration block, complex algorithm, and high precision. So far, many methods have been proposed for traditional camera calibration problems, which can be divided into four categories from the perspective of calibration algorithms: [0003] 1. Camera calibration method using optimization algorithm [0004] The advantage of this type of camera calibration method is that the optical imaging model of the camera can be assumed to be very complex, including various factors in the imaging process. However, the resulting problem is that the result of camera calibration depends on the initial given value of the camera. If the initial value is not given properly, it is difficult to obtain the correct ca...
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IPC IPC(8): H04N17/00G06T7/00
Inventor 李丹
Owner BEIJING HAIMI CULTURE MEDIA