Dynamic Spectral Imaging Device for Accurate Wavelength Resolution
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Solution Overview
Problem
Existing image capturing devices cannot set acquisition conditions for spectral information based on the spectral characteristics of a subject, limiting their ability to acquire accurate spectral data.
Innovation Solution
An image capturing device with an illuminator generating light at multiple wavelength bands, an imager capturing images, and a processor that sets and adjusts acquisition conditions to ensure accurate spectral information acquisition by analyzing image signals and modifying conditions when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a multiband spectral image is used for high color reproduction and analysis, then color resolution and wavelength resolution are improved, but the ability to set acquisition conditions according to subject spectral characteristics is lost
Solution Approach 1:
The patent implements dynamic adjustment of acquisition conditions (illumination wavelength bands, exposure time, gain) based on real-time spectral characteristics of the subject. The system continuously adapts the multiband imaging parameters to match the specific spectral properties of different subjects, transforming a static imaging system into a dynamic one that optimizes performance for each subject type.
Solution Approach 2:
The system changes key imaging parameters including illumination wavelength selection, exposure time, and gain settings based on the measured spectral characteristics of the subject. By adjusting these parameters dynamically, the system achieves high spectral information accuracy while maintaining adaptability to different subject types.
2Measurement precision
If fixed acquisition conditions are used for spectral imaging, then device complexity is reduced, but spectral information accuracy cannot be optimized for different subjects
Solution Approach 1:
The patent employs a feedback mechanism where the spectral characteristics of the subject are first measured, then this information feeds back to automatically adjust the acquisition conditions for subsequent imaging. This closed-loop control system optimizes spectral information accuracy without requiring complex manual intervention, as the system self-adjusts based on measured subject properties.
Solution Approach 2:
The system performs self-adjustment of acquisition conditions by automatically measuring subject spectral characteristics and configuring optimal imaging parameters without external intervention. This self-service capability reduces the burden on operators while maintaining high spectral information accuracy across different subject types.
3Measurement precision
If multiple wavelength bands are used for spectral imaging, then wavelength resolution is improved, but acquisition time increases
Solution Approach 1:
The patent applies partial action by selecting and activating only the necessary wavelength bands based on the specific spectral characteristics of the subject. Rather than continuously imaging across all available wavelength bands, the system intelligently activates only those bands required for accurate spectral measurement of the current subject, thereby reducing acquisition time while maintaining wavelength resolution.
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 the acquisition of highly accurate spectral information by dynamically adjusting illumination conditions to match the subject's spectral characteristics, improving signal-noise ratio and wavelength resolution.
Implementation Method 1
an illuminator configured to generate illumination light composed of components at a plurality of wavelength bands
Implementation Method 2
an imager configured to generate an image signal by capturing light from a subject
Data Source
AI summary
An image capturing device includes: an illuminator configured to generate illumination light composed of components at a plurality of wavelength bands, each of the components having a characteristic in accordance with a corresponding one of settings; an imager configured to generate an image signal by capturing light from a subject; and a processor. The processor is configured to: set an acquisition condition for acquiring spectral information of the subject, the acquisition condition including a condition related to an operation of each of the illuminator and the imager; analyze the image signal generated by the imager based on the acquisition condition in order to acquire the spectral information of the subject; determine whether or not the acquired spectral information satisfies an end condition for ending acquisition of the spectral information; and change the acquisition condition when the processor determines that the end condition is not satisfied.