Tilt Image Generation Without Scout Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image processing techniques require capturing a scout image to generate a tilt image, which increases exposure dose and imaging time for the subject.
Innovation Solution
An image processing apparatus and method that derive an inclination amount of a reference line from optical images or light beam information to generate a tilt image without capturing a scout image, using a tomographic imaging apparatus to tilt and rotate an axial cross section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a scout image is captured to generate a tilt image, then the tilt image can be generated with accurate orientation, but the exposure dose to the subject increases
Solution Approach 1:
The patent extracts only the necessary information (orientation data) from the scout image formation process by using pre-acquired optical images instead of full scout images. This allows obtaining orientation accuracy without the harmful radiation exposure of capturing additional scout images.
Solution Approach 2:
The patent uses optical images (visible light images) as a copy or alternative to the scout image (X-ray image) for deriving orientation information. This copying approach provides the necessary orientation data without requiring the subject to undergo additional X-ray exposure.
2Measurement precision
If a scout image is captured to generate a tilt image, then the tilt image can be generated with accurate orientation, but the imaging time increases
Solution Approach 1:
The patent performs preliminary action by acquiring optical images before the CT scanning process. These optical images are then used to derive orientation information, eliminating the need to capture scout images during the imaging process and thus reducing total imaging time.
Solution Approach 2:
The patent merges the orientation derivation function with the existing optical imaging process. By combining the use of optical images (which are already captured for other purposes) with the tilt image generation process, it eliminates redundant imaging steps and reduces overall imaging time.
3Productivity
If optical images are used to derive inclination amount, then scout image capture can be omitted, but additional imaging apparatus is required
Solution Approach 1:
The patent applies universality by using optical imaging apparatus that can serve multiple functions: capturing images for orientation derivation and potentially other diagnostic or monitoring purposes. This multi-functionality justifies the addition of the apparatus while improving overall imaging efficiency.
Data Source
AI summary
The image processing apparatus derives an inclination amount of a reference line on the basis of an optical image obtained by imaging a part used for deriving the reference line of a subject or information indicating an irradiation direction of a light beam emitted onto the reference line, and generates a tilt image which is a tomographic image of an inclined cross section inclined according to the inclination amount by tilting and rotating an axial cross section using a slice image.