Radiation Imaging Offset Correction Data Grouping
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Solution Overview
Problem
Existing radiation imaging systems face challenges in efficiently acquiring and updating offset correction data for a large number of radiography modes, leading to prolonged periods of inexecutable photography and potential degradation in image quality.
Innovation Solution
A radiation imaging apparatus is designed with an image data acquisition unit, an offset correction data acquisition unit, an offset correction unit, a determination unit, and an update unit. This apparatus determines which radiography modes can share common offset correction data, selects the appropriate data for use, and updates the data efficiently to ensure timely and accurate offset correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If offset correction data is acquired for each radiography mode separately, then offset correction accuracy is improved, but the time required to update offset data increases
Solution Approach 1:
The patent applies universality by enabling a single offset correction image to serve multiple radiography modes simultaneously. The determination unit identifies modes that can share common offset data based on their characteristics, allowing one offset image to correct multiple modes rather than requiring separate offset images for each mode. This reduces the total number of offset images needed and accelerates the update process.
Solution Approach 2:
The patent merges the offset correction process by combining multiple radiography modes into groups that share common offset correction data. The determination unit evaluates modes and merges compatible ones into shared groups, so that offset correction data acquired for one mode can be applied to other merged modes. This consolidation significantly reduces the time required to update offset data across all modes.
2Reliability
If offset correction data is acquired frequently for all modes, then image quality is improved, but photography execution is prolonged
Solution Approach 1:
The system applies universality by making offset correction data acquired in one radiography mode applicable to multiple other modes through the determination unit's grouping mechanism. This allows the system to maintain high image quality across all modes while reducing the frequency and number of offset data acquisitions needed, thereby preventing prolonged photography execution delays.
Solution Approach 2:
The patent implements partial action by acquiring offset correction data selectively for representative modes rather than for every single mode. The determination unit identifies which modes need their own dedicated offset data and which can share data from other modes, performing offset acquisition only where necessary to maintain image quality without unnecessarily extending photography execution time.
3Adaptability or versatility
If the number of radiography modes is increased, then system versatility is improved, but offset data acquisition time increases
Solution Approach 1:
The patent applies universality by creating a scalable grouping mechanism that allows offset correction data to be shared across multiple radiography modes. As the number of modes increases, the determination unit automatically identifies patterns and groups modes that can share offset data, preventing the system from requiring proportional increases in offset acquisition time despite increased versatility.
Solution Approach 2:
The patent applies segmentation by dividing radiography modes into distinct groups based on their offset correction requirements. The determination unit segments modes into categories that share common offset characteristics, allowing the system to manage a large number of diverse radiography modes efficiently by treating segmented groups as units with shared offset data rather than managing each mode individually.
Data Source
AI summary
A radiation imaging apparatus includes: an image data acquisition unit which acquires a radiographic image that is related to a photography mode selected from a plurality of photography modes; an offset correction data acquisition unit which acquires an offset correction data corresponding to each of the plurality of photography modes; an offset correction unit which corrects the radiographic image with use of acquired offset correction data; a determination unit which determines, out of the plurality of photography modes, a group of photography modes for which common offset correction data shared with one another is usable, and selects, out of offset images corresponding to respective photography modes in the group, an offset image to be used in offset correction; and an update unit which updates, in order to execute offset correction of the photography modes in the group, the selected offset image to a corresponding offset image.