Image Pickup Apparatus Mode Switching with Parameter Control
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Solution Overview
Problem
Image pickup apparatuses face challenges in smoothly transitioning between observation modes with different light emission amounts, leading to issues such as color tone changes and brightness disorders during mode switching, which affect image quality.
Innovation Solution
An image pickup apparatus with a light source unit capable of emitting first and second illumination lights, an image acquiring unit, a mode switching unit, a parameter setting unit for adjusting image processing parameters, and a control unit that manages the transition of illumination light and processing parameters to minimize color and brightness disorders during mode switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the illumination light is switched from white light to narrow band light, then the observation mode changes to provide specific wavelength information, but the light amount of illumination light decreases and color tone of the image changes
Solution Approach 1:
The patent changes the wavelength parameter of the illumination light from white light to narrow band light to achieve different observation modes. This allows the system to provide specific wavelength information for enhanced diagnostic capability while managing the trade-off in overall light intensity.
2Productivity
If the image processing parameter is switched when changing observation mode, then the processing is optimized for the new mode, but the color tone of the image changes causing brightness disorder
Solution Approach 1:
The patent performs preliminary adjustment of image processing parameters before completing the mode switching. By pre-adjusting parameters such as gain and processing characteristics in anticipation of the mode change, the system optimizes response time while minimizing abrupt color tone changes and brightness disorders in the displayed image.
Data Source
AI summary
An image pickup apparatus includes a light source apparatus emitting a first or a second illumination light to an object, an image pickup device acquiring an image of the object, and a CPU switching between a first mode where the image is picked up with the first illumination light and a second mode where the image is picked up with the second illumination light, being able to set at least one of a processing parameter for processing an image and a brightness control parameter before switching the illumination light to the illumination light corresponding to the mode or after switching to the corresponding illumination light is completed, and controlling whether the processing parameter is set before switching of the illumination light is started or after switching is completed according to the mode switching from the first to the second mode or from the second to the first mode.