20230103385. 3D RECONSTRUCTION METHOD AND APPARATUS simplified abstract (The 38th Research Institute of China Electronics Technology Group Corporation)
Contents
3D RECONSTRUCTION METHOD AND APPARATUS
Organization Name
The 38th Research Institute of China Electronics Technology Group Corporation
Inventor(s)
3D RECONSTRUCTION METHOD AND APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 20230103385 titled '3D RECONSTRUCTION METHOD AND APPARATUS
Simplified Explanation
The abstract describes a 3D reconstruction method and apparatus using multiple cameras to capture images of a symbol with markers. The method involves identifying the markers, computing camera parameters, unifying point clouds, and stitching them together to create a 3D reconstructed image.
- The method uses multiple cameras with different viewing angles to capture images of a symbol with markers.
- Each marker in the symbol image has a unique ID number.
- The ID number is used to search for corresponding world coordinates of the marker.
- The external parameter matrix of the camera is computed using marker coordinates in both camera and world coordinate systems.
- Point clouds from different viewing angles are unified under the world coordinate system.
- The unified point clouds are stitched together to create a 3D reconstructed image.
Potential Applications
- 3D modeling and reconstruction for virtual reality and augmented reality applications.
- Object recognition and tracking in computer vision systems.
- Industrial automation and robotics for object manipulation and inspection.
- Medical imaging for surgical planning and simulation.
Problems Solved
- Accurate and efficient 3D reconstruction from multiple camera views.
- Marker identification and correspondence for precise alignment of point clouds.
- Unifying and stitching point clouds to create a complete 3D model.
- Calibration of camera parameters for accurate reconstruction.
Benefits
- Improved accuracy and precision in 3D reconstruction.
- Faster and more efficient reconstruction process.
- Ability to reconstruct complex objects and scenes.
- Enhanced visualization and understanding of 3D data.
Original Abstract Submitted
provided are a 3d reconstruction method and apparatus, an electronic device and a storage medium. the 3d reconstruction method comprises: using a plurality of cameras with different viewing angles to image a symbol to obtain a symbol image, a reference object for camera calibration being called the symbol, the symbol including a plurality of markers, and each of the markers having a corresponding id number; identifying the id number of the marker in the symbol image and searching for world coordinates corresponding to the marker according to the id number; computing an external parameter matrix of the camera according to marker coordinates of a camera coordinate system and marker coordinates of a world coordinate system, and unifying point clouds under the world coordinate system to obtain a plurality of point clouds under different viewing angles; and stitching the plurality of point clouds together to obtain a 3d reconstructed image.
