Device and method for obtaining camera posture data

A camera and camera movement technology, which is applied in the direction of measuring devices, photogrammetry/video metrology, instruments, etc., can solve problems such as the inability to obtain camera attitude data, and achieve the effect of reducing errors and improving accuracy

Active Publication Date: 2014-03-26
北京同步风云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the main purpose of the present invention is to provide a device and method for acquiring camera attitud

Method used

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  • Device and method for obtaining camera posture data
  • Device and method for obtaining camera posture data
  • Device and method for obtaining camera posture data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It shows a schematic structural diagram of a device for acquiring camera pose data according to Embodiment 1 of the present invention; figure 1 As shown, the device includes: a satellite positioning system 10, an acceleration sensor 20, a gyroscope 30 and a core processor 40, wherein,

[0034] The satellite positioning system 10 is connected with the core processor 40 for obtaining the latitude and longitude and time of the camera position;

[0035] The acceleration sensor 20 is connected with the core processor 40, and is used for cooperating with the satellite positioning system 10 to measure the speed of the camera movement and the position of the camera;

[0036] The gyroscope 30 is connected with the core processor 40 and is used to cooperate with the satellite positioning system 10 to measure the direction and shooting angle of the camera motion and the rotational angular velocity of the camera;

[0037] The core processor 40 is used to read the satelli...

Embodiment 2

[0040] figure 2 It shows a schematic structural diagram of a device for acquiring camera pose data according to Embodiment 2 of the present invention; figure 2 As shown, the device also includes a geomagnetic sensor 50 connected to the core processor 40 for comparing with the actual local magnetic field to obtain the current camera shooting angle and cooperate with the acceleration sensor 20 to initialize the camera attitude data.

[0041] The acceleration sensor 20 is also used to use the acceleration of gravity to correct the tilt of the geomagnetic sensor 50; when there is no satellite navigation signal (such as passing through a cave), cooperate with the gyroscope 30 to estimate the motion of the camera.

[0042] The core processor 40 includes: a sync pulse counter 402 for counting frame sync pulses.

[0043]The geomagnetic sensor 50 is also used to periodically correct the attitude of the camera based on the pulse number of the synchronous pulse counter 402 when the gy...

Embodiment 3

[0048] image 3 It shows a schematic structural diagram of a device for acquiring camera pose data according to Embodiment 3 of the present invention; image 3 As shown, the device also includes: an air pressure sensor 60 connected to the core processor 40 for measuring the air pressure at the location of the camera and cooperating with the satellite positioning system 10 to calculate the altitude of the camera.

[0049] Since the embodiment of the present invention is equipped with an air pressure sensor, and cooperates with the satellite positioning system to measure the height of the camera when taking pictures, the position of the camera can be determined more accurately, and the error is reduced.

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Abstract

The invention provides a device for obtaining camera posture data. The device comprises a global positioning system, an acceleration sensor, a gyroscope and a core processor, wherein the global positioning system is used for obtaining the longitude and latitude of the camera position and the time; the acceleration sensor is used for measuring the speed of camera motion and the position of a camera in cooperation with the global positioning system; the gyroscope is used for measuring the direction of camera motion, a shooting angle and the rotation angular speed of the camera in cooperation with the global positioning system; the core processor is used for reading data of the global positioning system and data of each sensor corresponding to each frame of video, based on frame synchronizing pulse, further performing fusion and filtering treatment on the data to obtain position and posture data of the camera, and then outputting the position and posture data. The invention also discloses a method for obtaining camera posture data. The camera provided in the invention not only can shoot video and acquire voice, but also can obtain information on state, time and location of video shooting of the camera, which facilitates reproduction of the shooting scene in future.

Description

technical field [0001] The present invention relates to the field of camera attitude data measurement, and more particularly, to a device and method for acquiring camera attitude data. Background technique [0002] In recent years, the application of information dissemination system and radio and television is ubiquitous, covering all walks of life and various occasions in people's life and society. And these information originate from the video picture that the camera shoots to the scene of the event. shooting angle and other information. Especially when various disasters or emergencies occur, there is no camera attitude data corresponding to the video screen to reproduce the event scene, which brings inconvenience to the command center for the analysis of on-site events and loses important evidence. Contents of the invention [0003] In view of this, the main purpose of the present invention is to provide a device and method for acquiring camera attitude data, which ca...

Claims

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Application Information

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IPC IPC(8): G01C11/00G01C21/00
CPCG01C11/00G01C21/00
Inventor 黄喜荣
Owner 北京同步风云科技有限公司
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