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A 3D Motion Estimation Method for Rigid Targets in Multi-view Environment

A three-dimensional motion and target technology, applied in the field of computer vision, can solve problems such as the influence of motion estimation accuracy and illumination changes, and achieve the effect of avoiding illumination changes and occlusion problems

Active Publication Date: 2019-01-11
XIAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for estimating the three-dimensional motion of a rigid target in a multi-view environment, which solves the problem of the influence of illumination changes and camera chromatic aberration on the accuracy of motion estimation results of existing methods

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  • A 3D Motion Estimation Method for Rigid Targets in Multi-view Environment

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Embodiment Construction

[0051] The present invention will be described in detail below through specific embodiments.

[0052] A method for estimating the three-dimensional motion of a rigid target in a multi-view environment according to the present invention is specifically implemented according to the following steps:

[0053] Step 1. Build a multi-view target image acquisition environment and obtain multiple target images. The specific process is:

[0054] Step 1.1, place nCamNum cameras around the experimental scene, and use Zhang's calibration method to calibrate the cameras;

[0055] Step 1.2, collect the background image {Back 1 ,Back 2 ,...,Back j ,...,Back nCamNum};

[0056] Step 1.3, place the rigid object O in the experimental scene, make the rigid object O perform rigid motion, nCamNum cameras synchronously collect the motion video of the rigid object O, at time t and time t+1, the nCamNum cameras synchronously collect images respectively {I 1,t ,I 2,t ,...,I j,t ,...,I nCamNum,t}...

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Abstract

The invention discloses a rigid target three-dimensional motion estimation method in a multi-view environment, and is specifically implemented according to the steps of: 1. building a multi-view target image acquisition environment, and obtaining a plurality of target images; 2. rebuilding a target three-dimensional shape S(t) according to the plurality of target images that are obtained in the Step 1, and initializing motion parameters of the target three-dimensional shape S(t); 3. building an energy function E which reflects distance between a multi-view two-dimensional projection of the target three-dimensional shape and the target images, judging whether the energy function E converges, if not, turning to Step 4, and if yes, outputting the motion parameters of the target three-dimensional shape S(t), i.e., the motion parameters of a rigid target three-dimensional shape S(t); and 4. updating the motion parameters of the target three-dimensional shape S(t), and turning to the Step 3. Estimation of target three-dimensional motion by the method is not influenced by illumination variation and chromatic aberration of a camera.

Description

technical field [0001] The invention belongs to the technical field of computer vision, and in particular relates to a method for estimating three-dimensional motion of a rigid target in a multi-view environment. Background technique [0002] The motion estimation of the three-dimensional shape of the target in the multi-view environment refers to obtaining the multi-view image of the target through the multi-view environment, restoring the three-dimensional shape of the target according to the principle of computer vision, and then according to the motion video of the target obtained in the multi-view environment, using computer vision, digital video The processing method estimates the motion of the three-dimensional shape of the object. The 3D shape motion estimation method of the target in a multi-view environment can obtain the correlation of the 3D shape of the target at different times, so it has important applications in virtual reality and human-computer interaction....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/207G06T7/80
CPCG06T2207/10012
Inventor 李秀秀郑江滨金海燕赵明华鲁晓锋赵金伟石争浩
Owner XIAN UNIV OF TECH
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