Radiation Imaging Apparatus Offset Correction Timing
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Solution Overview
Problem
Existing radiation imaging apparatuses do not effectively consider the timing of obtaining offset correction images when removed from a docking station, leading to potential delays and inefficiencies in starting imaging sessions.
Innovation Solution
A radiation imaging apparatus and method that includes a sensor array, a power reception unit for charging a battery, and a generating unit that produces an image for correction once a predetermined condition is met after power reception starts, allowing for smooth imaging initiation when the apparatus is removed from a holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the radiation imaging apparatus is removed from the docking station for portable use, then the apparatus can be used mobile, but the temperature stabilization time increases and imaging cannot start immediately
Solution Approach 1:
The system performs preliminary temperature stabilization and offset correction image acquisition while the apparatus is docked and powered. The control unit determines that temperature has stabilized based on temporal changes in temperature data, and acquires offset correction images before the apparatus is removed for portable use. This preliminary action ensures that when the apparatus is later used portably, imaging can start immediately without waiting for temperature stabilization.
2Measurement precision
If offset correction images are acquired before imaging, then fixed pattern noise is removed, but the apparatus requires temperature stabilization which delays imaging start
Solution Approach 1:
Offset correction images are acquired in advance while the apparatus is docked and temperature is stabilizing. The control unit stores these offset correction images and uses them for subsequent imaging operations. This allows the system to maintain high image quality through proper offset correction while eliminating the delay that would otherwise occur when waiting for temperature stabilization before each imaging session.
Solution Approach 2:
The system creates a copy of the offset correction images obtained during the docked state and stores them for later use during portable operation. This copied offset correction data can be applied to multiple subsequent images without requiring repeated temperature stabilization and offset correction acquisition, thus maintaining measurement precision while reducing wait time.
3Measurement precision
If the apparatus waits for temperature stabilization before acquiring offset correction images, then accurate correction is achieved, but imaging start is delayed
Solution Approach 1:
The system performs the temperature stabilization wait and offset correction image acquisition as a preliminary action while the apparatus is docked. The control unit monitors temperature over time and determines when stabilization has occurred, then acquires the offset correction images at that point. This preliminary completion of temperature stabilization and offset correction allows the apparatus to immediately start imaging when removed for portable use, thus maintaining correction accuracy while improving imaging start speed.
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
Enables immediate and efficient image capturing by generating an image for offset correction upon removal from the docking station, reducing wait times and preventing unnecessary battery consumption.
Implementation Method 1
a sensor array configured to detect radiation
Implementation Method 2
a power reception unit configured to receive power supplied from outside
Data Source
AI summary
A radiation imaging apparatus that generates an image by receiving radiation transmitted through an object, comprises a sensor array configured to detect radiation, an obtaining unit configured to obtain an image signal from a detection signal of the sensor array, a power reception unit configured to receive power supplied from outside, and battery that is charged by using the power received by the power reception unit. The radiation imaging apparatus generates, in response to the satisfaction of a predetermined condition after power reception is started by the power reception unit, an image for correction by obtaining the image signal from the obtaining unit.