An object three-dimensional information acquisition method and device

Abstract

The invention provides an object three-dimensional information acquisition method and device, and the method comprises the steps of extracting two-dimensional key points of an object according to an image, and determining three-dimensional key points matched with the two-dimensional key points in each candidate three-dimensional model; determining a plurality of first reference posture positions of each candidate three-dimensional model according to the three-dimensional key points and the two-dimensional key points; obtaining a plurality of re-projection error values of each candidate three-dimensional model and the object under the plurality of first reference attitude positions, and determining a first target attitude position with the minimum re-projection error value and a first target three-dimensional model; and obtaining three-dimensional information of the object according to the first target attitude position and the first target three-dimensional model. Therefore, the obtaining efficiency and the accuracy of the three-dimensional information of the object in the two-dimensional image are improved, and the robustness of the obtaining mode of obtaining the three-dimensional information of the object is ensured.

Description

technical field [0001] The invention relates to the technical field of three-dimensional information, in particular to a method and device for acquiring three-dimensional information of an object. Background technique [0002] The acquisition of three-dimensional information of objects, especially the acquisition of three-dimensional information of dynamic objects is a very challenging problem. Since the 3D information of an object can provide constraints complementary to the color information and at the same time reflect the distance between the object and the current camera, the 3D information acquisition of the object has received more and more attention in the current field of artificial intelligence. [0003] In related technologies, the color image of the object and the auxiliary depth image are used to estimate the three-dimensional information of the object in the image, that is, the color image and the depth image of the object are acquired at the same time, and the...

AI Technical Summary

Problems solved by technology

However, in this method of obtaining depth information, due to the large amount of calculation of depth information, the angle of obtaining depth information is usually low, and the auxiliary depth image is often of poor quality, with a large number of missing, and is easily affected by factors such as ambient light. , the accuracy is difficult to guarantee, therefore, the acquisition accuracy of the three-dimensional information of the object is not high, and the robustness is poor

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