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Cursor position calibration parameter calibration method and device for screen interaction

A technology for calibrating parameters and cursor positions, which is applied in the field of screen interaction, can solve problems such as low accuracy of calibration parameters, and achieve the effect of improving accuracy

Pending Publication Date: 2020-07-28
中天智领(北京)科技有限公司
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Problems solved by technology

[0003] The existing practice is to use a fixed calibration pattern to calibrate the calibration parameters only once; in the above calibration method, a calibration image containing multiple calibration points needs to be displayed on the screen. The pixel coordinates of the source image are known, the camera captures the image, and calculates the pixel coordinates of each calibration point on the image; then the calibration parameters are determined by solving the overdetermined equations. The accuracy of the calibration parameters in the mapping relationship obtained in the prior art is not high.

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[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0041] It should be noted that the terms "first" and "second" in the description and claims of the embodiments of the present invention and the above drawings are used to distinguish similar objects, but not necessarily to describe a specific order or sequence order. It is to be understood that the data so used are interchangeable under appropriate ci...

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Abstract

The embodiment of the invention discloses a cursor position calibration parameter calibration method for screen interaction, which comprises the following steps of: calibrating a cursor position in the screen interaction for multiple times to obtain a calibration parameter group calibrated for multiple times; the embodiment of the invention further discloses a cursor position calibration parametercalibration device for screen interaction. According to the technical scheme disclosed by the embodiment of the invention, the cursor position calibration accuracy is greatly improved.

Description

technical field [0001] The invention relates to the field of screen interaction, in particular to a method and device for calibrating cursor position calibration parameters in screen interaction. Background technique [0002] In screen interaction, it is necessary to find the mapping relationship between each pixel in the image captured by the camera and each pixel of the output image of the signal source that provides the display signal for the screen; the accuracy of the parameters in this mapping relationship is crucial for the mapping Accuracy has unique influence, therefore, the calibration of the calibration parameters is very important. [0003] The existing practice is to use a fixed calibration pattern to calibrate the calibration parameters only once; in the above calibration method, a calibration image containing multiple calibration points needs to be displayed on the screen. The pixel coordinates of the source image are known, the camera captures the image, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G01B21/00
CPCG06T7/80G01B21/00
Inventor 卢新国陆世洪党战雄陈耀武
Owner 中天智领(北京)科技有限公司