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

Automatic correction device and method for whole angle image spiral distortion

An automatic correction and distortion correction technology, applied in the field of medical devices, can solve the problems of rough correction, complicated and time-consuming debugging process, etc., and achieve the effect of continuous correction, suitable for practice, and simple method.

Active Publication Date: 2011-06-01
NEUSOFT MEDICAL SYST CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the automatic correction device and correction method for image spiral distortion in the prior art, such as rough correction, complicated and time-consuming debugging process, the problem to be solved by the present invention is to provide an automatic correction device and correction method for image spiral distortion at all angles

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
  • Automatic correction device and method for whole angle image spiral distortion
  • Automatic correction device and method for whole angle image spiral distortion
  • Automatic correction device and method for whole angle image spiral distortion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] As shown in Figures 1 and 2, the device of the present invention includes a full-angle image spiral distortion automatic correction plate (hereinafter referred to as the correction plate), which is installed in the X-ray machine imaging system or is relatively close to the imaging system, and can rotate with the bed body position (installed on the X-ray machine body in this embodiment, and rotates synchronously with the bed body), the correction board is provided with a processor (a CPU is used in this embodiment), and its signal input terminal is connected with an angle through a voltage divider circuit. sensor (in this embodiment, the angle sensor is located at the center of the correction plate), the output end of the processor is connected to the fixed distortion correction port of the image intensifier through the correction voltage generation circuit, and the processor is connected to the image display of the X-ray machine through the communication interface. The c...

Embodiment 2

[0058] The difference from Example 1 is that N=10.0 is taken during the exposure operation, that is, one exposure image is selected every 10.0° of the bed rotation angle to participate in distortion correction, and a total of 19 adjustable voltages are generated for the distortion of 19 positions respectively. The image is corrected.

Embodiment 3

[0060] The difference from Example 1 is that N=0.5 is taken during the exposure operation, that is, an exposure image is selected every 0.5° for the rotation angle of the bed body to participate in distortion correction, and a total of 361 adjustable voltages are generated for the distortion of 361 positions respectively. The image is corrected.

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 relates to an omnidirectional automatic correcting device for the spiral distortion of an image. The automatic correcting device comprises a correcting plate; the correcting plate is arranged on an X-ray machine bed body and synchronously rotates along with the bed body; a processor is arranged on the correcting plate; a signal input end of the processor is connected with an angle sensor by a voltage-dividing circuit; an output end of the processor is connected with an image enhancer by a correcting voltage-generating circuit; the processor is connected with a computer in an image displaying device of the X-ray machine by a communication interface for communication; an automatic debugging program and an automatic correcting program are stored in the processor; and a main control program is stored in the computer. The automatic correcting device has the characteristics that: the omnidirectional automatic correcting of the spiral distortion of the image is realized; compensating voltage is produced against all positions of the bed body to the image enhancer; the correcting of the distortion is continuous without image jumping; the problem that the omnidirectional automatic correcting of the spiral distortion of the image is rough in the prior art is changed; the method is simple and easy for operation; the debugging time is greatly reduced; the correcting precisionof the distortion is high; the uniformity of products is good; and the cost is low.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an automatic correction device and correction method for spiral distortion of full-angle images of X-ray products. Background technique [0002] The existing medical device image intensifier is a vacuum imaging device, which is composed of an input screen, a photocathode assembly, an electron optical focusing system and a fluorescent screen. The X-ray image is converted into a visible light image through the input screen, and then converted into an electronic image through the photocathode. , is imaged by the electron optical system and accelerated to the output fluorescent screen, and finally transformed into a visible image. After being picked up by the CCD camera, it is observed on the monitor. When the photoelectrons are accelerated by the electric field inside the image intensifier, the Loren Due to the influence of the magnetic force, a certain degree of deflection ...

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 Patents(China)
IPC IPC(8): H04N1/387G06T3/60
Inventor 刘柏杨东生牛杰
Owner NEUSOFT MEDICAL SYST CO LTD