3DGS-based 3D reconstruction method for panoramic images

Through the 3DGS-based panoramic image 3D reconstruction method, equidistant cylindrical projection and distortion correction technology are used to generate high-precision panoramic images or dense 3D models, which solves the problems of unstable feature point extraction, insufficient accuracy of texture duplication scene matching and resource waste in panoramic image 3D reconstruction, and realizes efficient and accurate 3D reconstruction.

CN120526066BActive Publication Date: 2025-10-03LANJIAN (SUZHOU) TECH CO LTD
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Patent Information

Application Number
CN202511030517.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-10-03
Estimated Expiration
2045-07-25

AI Technical Summary

Technical Problem

The existing technology in panoramic image three-dimensional reconstruction has problems such as unstable feature point extraction and elimination, insufficient matching accuracy in texture repetition or weak texture scenes, decreased reconstruction accuracy at extreme angles, low resource utilization efficiency, waste of resources in repeated scene reconstruction, insufficient adaptation of traditional projection models to panoramic perspectives, and insufficient control of Gaussian modeling details.

Method used

A 3DGS-based panoramic image 3D reconstruction method is adopted. The panoramic image is encoded by equidistant cylindrical projection to generate a sparse 3D point cloud. The pose registration and fusion are combined with the historical reconstruction results. Distortion correction and iterative training are performed. The panoramic screen spatial gradient is used to control the Gaussian basis densification to generate high-precision panoramic images or dense 3D models.

Benefits of technology

It improves the accuracy and efficiency of 3D reconstruction of panoramic images, reduces computing resource consumption, solves the matching error problem in extreme viewing angles and weak texture scenes, and ensures the stability of reconstruction and efficient resource utilization.

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Abstract

This invention provides a method for 3D reconstruction of panoramic images based on 3DGS, which relates to the fields of computer vision and image processing. The method comprises: Step 1: Acquiring a sequence of panoramic images of the scene to be reconstructed and uniformly encoding them via equirectangular projection to obtain a coded dataset; Step 2: Performing panoramic structure-from-motion processing on the coded dataset to generate six-degree-of-freedom camera pose parameters for each image and a corresponding sparse 3D point cloud. This method achieves high-precision and high-efficiency 3D reconstruction of panoramic scenes, capable of outputting high-quality panoramic images or dense 3D models, improving both the quality and efficiency of 3D reconstruction.
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