KEYWORDS: Clouds, Nondestructive evaluation, Image registration, Data modeling, 3D modeling, Reconstruction algorithms, Feature extraction, 3D metrology, 3D image processing, Sun
Laser scanning can obtain the three-dimensional point cloud data of the object surface in real time, which is widely used in 3D reconstruction, robot path planning and other fields. 3D point cloud data is essential for the reconstruction of geometric models, Point cloud registration is subjected to complex feature point search, mismatch rate and strict initial registration parameters. In this paper, a novel point cloud registration method based on directional feature weighted constraint is proposed. Firstly, voxel filtering and outlier removal are performed on the original input point cloud to reduce the computational complexity and improve the registration efficiency. Secondly, Random Sample Consensus(RANSAC) is used to lower the mismatch rate among the feature correspondences and to obtain more robust matching points. Thirdly, the neighborhood feature description of each feature point is constructed through the directional vector feature constraint among its neighbor points. Finally, the dynamic weights between key-points with robust adjacent features are calculated iteratively. The experiments are carried out on public and self-collected dataset. The experimental results show that, compared with the traditional ICP and NDT method, our method can significantly decrease the complexity of searching, distinctly accelerate the registration convergence speed, and improve the robustness and effectiveness of the point cloud registration.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.