Image Capturing System Balancing Spectral Intensity via Periodic Action

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Solution Overview

Problem

Existing image capturing systems for observing living organisms, particularly human bodies, suffer from loss of image information due to the high luminance value of the R component, which overwhelms the B and G components, making it difficult to capture useful image information from the B and G wavelength regions.

Innovation Solution

An image capturing system that includes light receiving elements sensitive to multiple wavelength ranges and a control section that adjusts the frequency of light reception to prioritize the second wavelength range with lower spectral intensity, ensuring balanced image capture of R, G, and B components, along with luminescence light, to enhance image quality and information retrieval.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the image capturing system uses light receiving elements to capture all wavelength ranges simultaneously, then the complete image information is captured, but the high luminance value of the R component overwhelms and buries the B and G component information

Engineering Contradiction:
Improveimage informationVSAvoidluminance value
Core Design Contradiction:
Loss of informationVSIllumination intensity

Solution Approach 1:

The patent applies periodic action by controlling light receiving elements to alternately capture light in different wavelength ranges at different frequencies. Specifically, elements sensitive to lower spectral intensity ranges (B and G components) are controlled to receive light more frequently than elements sensitive to higher spectral intensity ranges (R component), creating a periodic sampling pattern that balances the captured information across all wavelength ranges

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent changes the parameter of light reception frequency for different wavelength ranges. By adjusting the reception frequency parameter based on spectral intensity characteristics, the system compensates for the overwhelming R component and enhances the visibility of B and G component information, transforming the balance of captured image information

Inventive Principle:
Principle #35Parameter changes

2Loss of information

If the system prioritizes capturing light in lower spectral intensity ranges, then the B and G component information becomes visible, but the overall image capture frequency increases

Engineering Contradiction:
ImproveB and G component informationVSAvoidimage capture frequency
Core Design Contradiction:
Loss of informationVSProductivity

Solution Approach 1:

The patent applies partial action by having different light receiving elements operate at different frequencies rather than uniformly. Elements capturing lower spectral intensity ranges (B and G) are controlled to receive light more frequently than elements capturing higher spectral intensity ranges (R), allowing selective enhancement of critical information without uniformly increasing the burden on all system components

Inventive Principle:
Principle #16Partial or excessive action

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 the generation of high-quality images that effectively balance the representation of all color components, enabling clearer visualization of internal structures like blood vessels, even when R component luminance is high, thereby improving medical observation and procedure assistance.

Implementation Method 1

adjusting light reception frequencies based on spectral reflectance

Methodology Applied
Scientific EffectSpectral reflectance: Reflection

Data Source

PatentUS8158919B2Image capturing system, image capturing method, and computer readable medium
Publication Date: 2012.04.17 FUJIFILM CORP
  • US8158919B2 patent drawing
  • US8158919B2 patent drawing
  • US8158919B2 patent drawing

AI summary

An image capturing system includes an image capturing section that includes a plurality of light receiving elements configured to receive light in a first wavelength range and light in a second wavelength range, a control section that controls the light in the second wavelength range to be received by each of the plurality of light receiving elements more frequently than the light in the first wavelength range, where the light in the second wavelength range has a lower spectral intensity than the light in the first wavelength range, and an image generating section that generates an image by using the light in the first wavelength range received by the plurality of light receiving elements at a given timing and the light in the second wavelength range received by the plurality of light receiving elements at a different timing.