Camera position and attitude tracking system and method

Abstract

The invention discloses a camera position and posture tracking system, which comprises: a transmitting device, a receiving device and a data processing device. Among them, the transmitting device is used to transmit synchronous signals and laser signals, and the laser signals include alternately emitted X-axis laser signals and Y-axis laser signals; the receiving device includes multiple receiving units, and multiple receiving units are installed on the camera and / or are used to support The supporting equipment of the camera is used to receive the synchronous signal and laser signal emitted by the transmitting device; the data processing device is connected to multiple receiving units, and is used to determine the The position and pose of the camera. The implementation of the technical scheme of the present invention does not need to modify the structure of the supporting equipment, and the calculation amount is small, the precision is high and the anti-interference ability is strong. At the same time, the invention also discloses a tracking method for the position and attitude of the camera.

Description

technical field [0001] The invention relates to the field of broadcasting and television, and more particularly relates to a tracking system and method for camera position and attitude. Background technique [0002] As an important means of TV program production, the virtual studio based on blue box keying technology has been widely used in various TV program productions. Images are digitally synthesized in real time. In the process of virtual studio program production, it is very important to determine the position and attitude information of the physical camera. In order to ensure that the virtual 3D scene produced by the computer changes synchronously with the images captured by the physical camera when the physical camera is pushed, pulled, and panned, to avoid When a person or object captured by a physical camera is floating in the scene, the virtual camera in the virtual scene needs to track the real camera in real time to keep in sync with the real camera. [0003] ...

AI Technical Summary

Problems solved by technology

And because the marker image in the tracking method based on light image is generally generated by visible light or infrared light, it is greatly affected by ambient light or thermal light source, and the anti-interference performance is also poor.

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