Unlock instant, AI-driven research and patent intelligence for your innovation.

Image correction method

An image correction and image technology, which is applied in the field of radiation imaging, can solve problems such as unsuitable multi-ray sources, and achieve the effect of solving inconsistent X-ray output and optimizing instability

Active Publication Date: 2021-06-25
NANOVISION TECHNOLOGY (BEIJING) CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, the above-mentioned automatic exposure control is only for a single ray source, and is not suitable for CT systems with multiple ray sources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image correction method
  • Image correction method
  • Image correction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The technical content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] In order to solve the problem of inconsistent X-ray output energy of multiple X-ray sources in a multi-ray source CT system, such as figure 1 As shown, the present invention provides an automatic exposure control system, including a main control unit 1 and a plurality of automatic exposure units 2, the main control unit 1 is connected to each automatic exposure unit 2, and each automatic exposure unit 2 is cascaded, each Each automatic exposure unit 2 is installed at the outlet of the corresponding X-ray source.

[0050] The automatic exposure unit 2 is used to receive the exposure signal sent by the main control unit 1, and realize the detection of the corresponding X-ray source, so as to obtain the KV level of the X-ray output by the X-ray source and send it to the main control unit 1. At the same tim...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an image correction method. The system comprises a main control unit and a plurality of automatic exposure units, the main control unit is connected with the automatic exposure units, and the automatic exposure units are in cascade connection. The system detects each X-ray source through an automatic exposure unit so as to obtain an energy accumulation value and a KV level of X-rays, and when the energy accumulation value of the X-rays reaches an energy threshold value, an automatic exposure control signal is sent to a main control unit, so that the main control unit adjusts an exposure time sequence according to the automatic exposure control signal, and the exposure time sequence of the X-rays is adjusted. The purpose of automatic exposure control is achieved, meanwhile, energy output by X-ray single exposure is kept relatively fixed, the problem that X-ray output is unstable is solved, and therefore the problem that X-ray output among all ray sources in an X-ray image system with multiple ray sources is inconsistent is solved.

Description

[0001] This application is a divisional application for an invention patent titled: An Automatic Exposure Control System and Image Correction Method, and the application number is: 202010301589.4. The filing date of the parent application is April 16, 2020. technical field [0002] The invention relates to an image correction method and belongs to the technical field of radiation imaging. Background technique [0003] For multi-source static CT systems, due to the differences in the performance of individual X-ray sources, after setting the same exposure conditions (such as X-ray tube voltage and current, exposure time, referred to as kV, mA and ms) for each X-ray source, each The kV, mA and ms of the X-rays actually output by each X-ray source will have certain differences. Among them, the difference in kV of X-rays belongs to the difference in energy level, which will lead to deviations in the calculated CT value (the pixels of the image finally presented by the device are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N5/32
CPCH04N5/32H04N23/70H04N23/73H04N17/002H04N23/30G06T7/80G06V10/751G06T7/0012G06T2207/10116G06T2207/10144
Inventor 崔志立李运祥张有为魏青
Owner NANOVISION TECHNOLOGY (BEIJING) CO LTD