Radiography Control Apparatus Dynamic Gain Image Calibration
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Solution Overview
Problem
Current radiographic imaging systems face challenges in calibrating image-pickup units effectively, leading to inefficient calibration processes that result in either excessive radiation exposure or insufficient noise reduction, affecting the precision of correction images and ultimately the quality of captured images.
Innovation Solution
A radiography control apparatus that adjusts the number of correction image captures based on specific image-capturing modes, using data from an image-capturing-mode input unit to determine the optimal number of captures, thereby improving calibration precision and reducing unnecessary radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple gain images are acquired and averaged to reduce random noises, then the precision of the correction image is improved, but the number of radiation exposures increases reducing the life of the radiographic apparatus
Solution Approach 1:
The patent changes the parameter of radiation dose in the image-capturing mode to optimize the number of gain images required. By adjusting the radiation dose to an appropriate level, the system can achieve sufficient noise reduction with fewer images, thereby extending the apparatus life while maintaining correction image precision.
Solution Approach 2:
The patent dynamically determines the number of gain images to be acquired based on the image-capturing mode and radiation dose conditions. Rather than using a fixed number of images, the system adapts the acquisition count to the specific imaging conditions, optimizing both precision and apparatus longevity.
2Measurement precision
If the number of gain images acquired is increased to reduce random noises, then the precision of the correction image is improved, but the radiation exposure frequency increases
Solution Approach 1:
The patent modifies the radiation dose parameter in the image-capturing mode to reduce the number of required gain image acquisitions. By optimizing the radiation dose level, the system achieves adequate noise reduction with fewer exposures, thereby reducing cumulative radiation exposure while maintaining correction image quality.
3Object-affected harmful factors
If the number of gain images acquired is decreased to reduce radiation exposure, then the radiation exposure frequency is reduced, but the precision of the correction image deteriorates
Solution Approach 1:
The patent adjusts the radiation dose parameter to an optimized level that allows fewer gain images to be acquired while still achieving sufficient noise reduction. This parameter optimization ensures that the correction image maintains adequate precision with reduced radiation exposure.
Solution Approach 2:
The patent incorporates feedback mechanisms that determine the appropriate number of gain images to acquire based on the image-capturing mode and radiation dose conditions. This feedback-based determination ensures that the minimum necessary number of images is acquired to maintain precision while minimizing radiation exposure.
4Measurement precision
If calibration is performed frequently to maintain image quality, then the precision of captured images is improved, but the life of the radiographic apparatus is reduced
Solution Approach 1:
The patent optimizes the radiation dose parameter in the image-capturing mode to reduce the number of gain images required for calibration. This parameter optimization allows calibration to be performed with fewer radiation exposures, thereby extending apparatus life while maintaining image quality precision.
Solution Approach 2:
The patent dynamically determines the calibration frequency and gain image acquisition count based on the image-capturing mode and radiation dose conditions. This dynamic approach optimizes the balance between maintaining image quality and extending apparatus life.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for more precise calibration of radiographic images, reducing artifacts and enhancing image quality while minimizing the frequency of calibration procedures, thus extending the life of radiographic apparatuses and reducing user exposure to radiation.
Implementation Method 1
the entire image-pickup unit is irradiated with a radiation emitted from the radiation source (the X-ray tube)
Data Source
AI summary
A radiography control apparatus includes an acquisition unit configured to acquire data of image-capturing mode and a change unit configured to change the number of times a correction image is captured, the correction image being used to correct a radiographic image in accordance with the acquired image-capturing-mode data.