Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Automatic exposure control method and system

An automatic exposure and control method technology, which is applied to the parts of TV system, TV, color TV, etc., can solve the problem of difficult control of the exposure radiation field, shorten the cycle of image acquisition, improve the image quality, Reduce the effect of subjective influence

Active Publication Date: 2022-05-03
SHANGHAI IRAY TECH
View PDF5 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 prior art described above, the purpose of the present invention is to provide an automatic exposure control method and system for solving the problem that the exposure radiation field is difficult to control in the prior art

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 exposure control method and system
  • Automatic exposure control method and system
  • Automatic exposure control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, this embodiment provides an automatic exposure control method, and the automatic exposure control method includes:

[0049]1) The object to be photographed enters the photographing area, and the image acquisition of the object to be photographed is performed and the location information of the part to be photographed is acquired.

[0050] Specifically, first place the flat panel detector in the detection system and electrically connect it with other devices in the detection system, the detection system includes but not limited to DR (Digital Radiography, direct digital X-ray), CT (computed tomography, electronic Computed tomography) and security inspection machines, any system that uses flat panel detectors for image acquisition is applicable. Then turn on the flat panel detector, start the machine and preheat it.

[0051] Specifically, in this embodiment, a visual device is used to collect images of the object to be photographed, and the im...

Embodiment 2

[0065] Such as figure 2 As shown, this embodiment provides an automatic exposure control method. The difference from Embodiment 1 is that the automatic exposure control method detects the exposure by scanning the exposure dose of the exposure radiation field area of ​​the flat panel detector. The start time and end time, including the following steps:

[0066] 1) The object to be photographed enters the photographing area, and the image of the object to be photographed is collected and the location information of the part to be photographed is obtained.

[0067] For the specific method, refer to Embodiment 1, which will not be repeated here.

[0068] 2) Based on the relative position of the object to be photographed and the flat panel detector, determine the exposure radiation field of the flat panel detector.

[0069] For the specific method, refer to Embodiment 1, which will not be repeated here.

[0070] 3) Selecting the exposure radiation field of the flat panel detect...

Embodiment 3

[0078] This embodiment provides an automatic exposure control method, which differs from Embodiments 1 and 2 in that the automatic exposure control method also acquires the shape information of the part to be photographed based on the image of the object to be photographed, and measures The thickness information of the part to be photographed, determining the exposure dose threshold according to the shape information and thickness information of the part to be photographed, comprises the following steps:

[0079] 1) The object to be photographed enters the photographing area, and the image acquisition of the object to be photographed is performed to obtain the position information and shape information of the part to be photographed, and the thickness information of the part to be photographed is obtained by measuring the part to be photographed.

[0080] Specifically, first connect the flat-panel detector to the system, and turn it on for preheating. Then use a visual device ...

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 present invention provides an automatic exposure control method and system, comprising: the object to be photographed enters the photographing area, and the image acquisition of the object to be photographed and the location information of the position to be photographed are obtained; based on the relative position of the object to be photographed and the flat panel detector, the The exposure radiation field of the detector; the exposure radiation field of the flat panel detector is selected, and the part to be photographed is exposed, and the flat panel detector triggers image acquisition after the exposure is completed. The present invention collects information through the visual device, calculates and analyzes the selection range of the radiation field, reduces the subjective influence of the operator, and makes the selection of the exposure radiation field more accurate; realizes automatic exposure control based on the exposure dose detection of the exposure radiation field area , simple in structure and low in cost; predicting the exposure dose through an algorithm can effectively avoid exposure dose errors, realize precise exposure control, and improve imaging quality; automatically collect images immediately after the end of exposure is detected, shortening the image acquisition cycle.

Description

technical field [0001] The invention relates to the field of flat panel detection, in particular to an automatic exposure control method and system. Background technique [0002] Flat panel detector is a new type of X-ray image detection technology born in the last century. It is famous for its fast imaging speed and high resolution. It is widely used in medical detection, non-destructive testing, security inspection and other fields. In the application of industrial inspection, the traditional film records the exposure radiation image, which is expensive and difficult to save. The application of digital flat panel detectors in industrial inspection has become the future development direction. [0003] Before exposure, it is first necessary to set the exposure radiation field. The number and position of the exposure radiation field are fixed in the traditional automatic exposure control. Wild matching is very inconvenient in actual operation. In recent years, the integrate...

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): H04N5/235
Inventor 黄翌敏何承林
Owner SHANGHAI IRAY TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com