Measurement method of angle deviation of cone beam CT system detector, based on feature texture template
A technology of angle deviation and detector, which is applied in the field of computer tomography, can solve the problems of complicated measurement operation steps and difficult template making, and achieve the effect of solving complicated template making, easy template making, and complicated measurement operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0068]The ray source is a COMMET ray source, and the PaxScan 1313DX detector is used to collect projection images with a resolution of 1024×1024, a pixel size of 0.127mm, and a Gigabit Ethernet interface. The estimated distance from the ray source to the detector is 1000mm. The texture on the calibration template is the superposition of checkerboard texture and concentric ring texture. The size of the template is 100mm×100mm, the checkerboard is 10×10, the length and width of each small square are 8mm, and there are 5 concentric rings in total. , taking the center of the checkerboard as the center, the minimum radius is 8mm, other radii are based on the minimum radius, and the interval is 8mm. The width of each line on the template is 1mm.
[0069] Step 1. Obtain the projection image of the calibration template and determine the initial value. The initial value of the angle parameter θ x =0,θ y =0,θ z =0, the initial value of the normalized displacement parameter
[00...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap