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Relocation method and device for camera gesture tracking process, equipment, and storage medium

A camera posture and relocation technology, applied in image data processing, instruments, calculations, etc., can solve problems such as poor effects, achieve the effect of increasing the probability of success and reducing the possibility of interruption of the tracking process

Active Publication Date: 2018-09-28
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 solve the problem that the effect of directly using the SLAM relocation method in the related art in the AR usage scene is poor

Method used

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  • Relocation method and device for camera gesture tracking process, equipment, and storage medium
  • Relocation method and device for camera gesture tracking process, equipment, and storage medium

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Embodiment Construction

[0037] First, some nouns involved in this application are briefly introduced:

[0038] AR (Augmented Reality, Augmented Reality): A method to calculate the camera attitude parameters of the camera in the real world (or three-dimensional world, real world) in real time during the process of capturing images by the camera. A technique for adding virtual elements to an image. 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 displacement vector and a rotation matrix. The displacement vector is used to represent the displacement distance of the camera in the real world, and the rotation matrix is ​​used to represent the rotation angle of the camera in the real world.

[0039] For example, see figure 1 and see figure 2 , the device adds an avatar image to the image captured by the camera. As the camera m...

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PUM

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Abstract

The invention discloses a relocation method and device for a camera gesture tracking process, equipment and a storage medium, and belongs to the field of augmented reality. The method comprises the following steps that: obtaining a current image collected behind the ith tagged image in a plurality of tagged images; when the current image conforms to a relocation condition, selecting a target key frame image selected from a key frame image library, wherein the key frame image library stores the image information of at least one key frame image, and the key frame image is an image which is cached in the camera gesture tracking process and successfully carries out first relocation than other images; carrying out second relocation on the current image than the target key frame image; and according to the location result of the first relocation and the location result of the second relocation, carrying out calculation to obtain a camera gesture parameter when the camera collects the currentimage.

Description

technical field [0001] The embodiments of the present application relate to the field of augmented reality, and in particular to a method, device, device, and storage medium for relocating a camera pose tracking process. Background technique [0002] Visual SLAM (simultaneous Localization and mapping, simultaneous positioning and map construction) refers to the technology that the subject equipped with a camera builds a model of the environment during the movement process and estimates its own movement without prior information of the environment. SLAM can be applied in the fields of AR (Augmented Reality, enhanced display), robotics and unmanned driving. [0003] Taking monocular vision SLAM as an example, the first frame image collected by the camera is usually used as the marked image (Anchor). When the camera subsequently collects the current image, the device tracks the common feature points between the current image and the marked image, and calculates the pose change...

Claims

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Application Information

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