Repositioning method, apparatus and device for camera pose tracking process, and storage medium

A camera attitude and relocation technology, applied in image data processing, instrumentation, computing, etc., can solve the problems of blocking the main thread and time-consuming relocation process, and achieve the effect of good relocation effect.

Active Publication Date: 2018-11-23
TENCENT TECH (SHENZHEN) CO LTD
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Problems solved by technology

[0005] The embodiment of the present application provides a relocation method, device, device, and storage medium for the camera posture tracking process, which can be used to solve the proble

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  • Repositioning method, apparatus and device for camera pose tracking process, and storage medium
  • Repositioning method, apparatus and device for camera pose tracking process, and storage medium
  • Repositioning method, apparatus and device for camera pose tracking process, and storage medium

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[0040] In order to make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0041] First of all, give a brief introduction to several terms involved in this application:

[0042] AR: A technology that calculates the camera's camera pose parameters in the real world (or three-dimensional world, real world) in real time during the camera's image capture process, and adds virtual elements to the image captured by the camera based on the camera pose parameters . Virtual elements include but are not limited to: images, videos and 3D models. The goal of AR technology is to connect the virtual world to the real world on the screen for interaction. The camera pose parameters include a rotation matrix and a displacement vector. The rotation matrix is ​​used to characterize the rotation angle of the camera in the real wo...

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Abstract

The invention discloses a repositioning method, apparatus and device for a camera pose tracking process, and a storage medium, and belongs to the field of augmented reality. The method comprises the steps that when a target image meets a repositioning condition, a front-end program is used for switching the target image into an (i+1)th mark image, and sends the target image to a back-end program;the front-end program obtains a current image collected after the target image, and performs feature point tracking on the current image relative to the target image to obtain a first pose parameter;the back-end program conducts re-positioning on the target image to obtain a second pose parameter, and sends the second pose parameter to the front-end program; and the front-end program calculates acurrent pose parameter of the current image according to the first pose parameter and the second pose parameter. According to the repositioning method, apparatus and device, even if the time for a re-positioning result of the target image by the back-end program is relatively long, a positioning result of the current image also can be corrected, so that a relatively good repositioning effect is guaranteed.

Description

technical field [0001] The embodiments of the present application relate to the field of augmented reality technology, and in particular to a method, device, device, and storage medium for relocating a camera pose tracking process. Background technique [0002] In the field of AR (Augmented Reality, augmented display), the subject equipped with the camera needs to track the movement posture of the camera in the real environment during the movement process without prior information of the environment. [0003] In the related art, the movement process of the camera is divided into at least two tracking processes for tracking, and each tracking process corresponds to a respective marker image (Anchor). Usually, the first frame of image captured by the camera is used as the first marked image. When the camera subsequently captures the current image, the device tracks the common feature points between the current image and the first marked image. According to the current image an...

Claims

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Application Information

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IPC IPC(8): G06T7/73G06T7/246G06T7/269
CPCG06T7/248G06T7/269G06T7/74G06T2207/10016G06T2207/30244G06T2207/30204
Inventor 林祥凯凌永根暴林超刘威
Owner TENCENT TECH (SHENZHEN) CO LTD
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