一种多段斜线组合的螺旋扫描扩大视场CT扫描方法
By using a spiral scanning method combining multiple oblique lines, the problems of field of view expansion and insufficient resolution in CT imaging technology have been solved, enabling full-domain high-resolution imaging of large and long objects, and possessing efficient and accurate scanning and reconstruction capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2023-06-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing CT imaging technology has difficulty expanding the field of view without sacrificing imaging resolution, especially for full-field high-resolution imaging of large and long objects. Traditional methods suffer from limited field of view expansion, poor imaging quality, low scanning efficiency, and high cost.
A multi-segment oblique line combination spiral scanning method is adopted. By translating the X-ray source along the oblique line trajectory with an inclination angle of γ along the z-axis and combining it with the rotation of the object, a non-standard spiral scanning trajectory is formed, which expands the lateral and axial field of view. High-precision control is achieved by combining the mechanical motion system and the data acquisition system.
It enables full-domain high-resolution imaging of large and long objects, improves X-ray utilization and scanning efficiency, has high-precision control and a simple scanning method, and meets the data completeness requirements for accurate 3D image reconstruction.
Smart Images
Figure CN116509430B_ABST