Three-dimensional reconstruction method and device based on line segment matching, terminal and storage medium
A technology of 3D reconstruction and line segment matching, which is applied in the field of 3D models, can solve the problems of low precision and achieve the effect of robustness, high accuracy and strong versatility
Pending Publication Date: 2021-06-29
SHENZHEN INST OF ADVANCED TECH
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[0004] This application provides a 3D reconstruction method, device, terminal and storage medium based on line segment matching to solve the problem of low accuracy of the existing 3D reconstruction method based on feature point matching
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0030] The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least t...
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The invention discloses a three-dimensional reconstruction method and device based on line segment matching, a terminal and a storage medium. The method comprises the following steps: extracting line segments from at least two plane images shot from different angles, and determining a plurality of line segment structures of each plane image based on the line segments; matching the line segment structures of any two plane images to obtain the matching number of the line segment structures of any two plane images; calculating a relative pose parameter between any two plane images by using the matched line segment structure; calculating by using the matching number and the relative pose parameter to obtain an absolute pose parameter of the camera when each plane image is shot; and constructing a final three-dimensional model based on the line segments and the absolute pose parameters. According to the method, the three-dimensional model is reconstructed in a line segment matching mode, and compared with a feature point matching three-dimensional reconstruction method, the accuracy is higher.
Description
technical field [0001] The present application relates to the technical field of 3D models, in particular to a 3D reconstruction method, device, terminal and storage medium based on line segment matching. Background technique [0002] Image-based 3D reconstruction mainly includes two stages: sparse reconstruction and dense reconstruction. Among them, sparse reconstruction is based on data association (image matching) to realize the reconstruction of feature points, which is generally completed through motion restoration structure. The dense reconstruction is to obtain a denser 3D point cloud after the sparse reconstruction. [0003] Existing image matching and 3D reconstruction technologies rely heavily on the extraction and matching of feature points, and the feature point method is greatly affected by the environment, and there may be a large number of wrong matches. The traditional 3D reconstruction method based on feature points has low accuracy. Moreover, the effect i...
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IPC IPC(8): G06T17/00G06T7/73
CPCG06T17/00G06T7/74
Inventor 程章林周佳新潘光凡
Owner SHENZHEN INST OF ADVANCED TECH