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A shooting calibration method and system

A calibration method and calibration device technology, applied in image analysis, instruments, calculations, etc., can solve problems such as time waste and difficult operation, and achieve the effect of reducing time and personnel costs and intuitively shooting and calibrating the process

Active Publication Date: 2020-02-14
BEIJING HULIAN YIDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of operation difficulty and time waste caused by the prior art, the present invention, on the basis of the traditional shooting calibration method, connects an external device to the camera to adjust the position coordinates of the infrared marker points and indirectly change the virtual center of the camera lens. The location of the point until the final picture is judged to confirm that the shooting picture has been calibrated

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  • A shooting calibration method and system
  • A shooting calibration method and system

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Embodiment Construction

[0031] Such as figure 1 , The main body of the calibration device is composed of three slide bars, the three slide bars are 90 degrees to each other, and each slide bar is equipped with a slide block. Wherein the slide block on the vertical slide bar is connected and fixed with 3 infrared marking points. Also, to attach the unit to the camera, use a cylinder, attach a large ball and a pinch that can be attached to the camera. Embedded in this large ball is a spirit level to keep the device vertical.

[0032] When it is necessary to calibrate the shooting of the three-dimensional fusion space for multi-sided special-shaped screens, the operator can add a virtual point in the setting software as the center point of the camera lens by estimating the relative position of the infrared marker point and the camera lens. Using this device placed vertically and fixed on the camera, adjust the slider on the slider bar that fixes the infrared marker point, and indirectly change the pos...

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Abstract

The invention discloses a shooting calibration method and a system. The method comprises following steps of acquiring coordinating positions of infrared mark points on a camera; using the coordinate positions to estimate relative positions of the infrared mark points and the camera; according to the relative positions, virtualizing a virtual center as a center point of a camera lens; according to the center point, shooting three-dimensional fusion space of a multi-surface abnormally-shaped screen and judging whether shot images are distorted; and if yes, re-adjusting the positions of the infrared mark points, or else, finishing a calibration process. In this way, an operation problem caused by failure to directly confirm a calibration result due to repeated correction of a simulation point in the center of the camera lens in the traditional shooting calibration method of the three-dimensional fusion space of the multi-surface abnormally-shaped screen can be solved, and time and labor cost are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of data display, in particular to a method and system for photographing a three-dimensional fusion space of multi-sided special-shaped screens. Background technique [0002] LED special-shaped screens are more and more widely used in program production, display publicity, and advertising. One of them is composed of multi-faceted special-shaped screens to display the type of three-dimensional fusion space. In order to enhance the audience's sense of immersion, the image displayed on the screen will change according to the movement of the camera lens (for example, the closer the camera lens is to the screen, the larger the picture will be). The system uses infrared positioning technology to determine the position of the camera lens. Since the infrared camera used in the infrared positioning system can only sense infrared markers, in order to determine the position of the camera lens, it is necessary to conne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/80
Inventor 刘耀贺海龙刘祺
Owner BEIJING HULIAN YIDA TECH
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