Three-dimensional imaging method, device, medium, and product for CBCT
By employing a combination of depth maps with biorthogonal or non-collinear projection perspectives and a depth back-projection model in the CBCT system, the problem of balancing real-time performance and quality in CBCT 3D imaging methods was solved, achieving high-quality 3D reconstruction and positional relationship display.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing CBCT 3D imaging methods cannot simultaneously achieve both image reconstruction quality and real-time 3D reconstruction, especially in the reconstruction of projection data within a limited angular range, where there are serious artifacts and loss of structural fidelity.
Based on projection datasets, depth map combinations for implants and implanted objects are determined separately. Depth map combinations are performed using biorthogonal projection perspectives or at least two non-collinear projection perspectives. Three-dimensional reconstruction is carried out through a depth back-projection model. Combined with depth matching networks and segmentation networks, independent image processing of implants and tissues is achieved.
It achieves near real-time 3D image reconstruction with a very small number of projection views, eliminates artifacts, provides high-quality implant and tissue structure information, and can accurately show the positional relationship between the implant and the implanted object.
Smart Images
Figure CN122398348A_ABST