Endoscope Calibration System Adapter Parameter Estimation
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Solution Overview
Problem
Conventional endoscope devices require separate calibration means and equipment to measure optical parameters with and without an optical adapter, leading to complex calculations and inefficient correction of optical distortion.
Innovation Solution
An endoscope calibration system that includes an imaging part, a parameter measurement part, and a parameter estimation part to measure and estimate optical parameters of an endoscope scope and optical adapter combinations, allowing for simpler correction of optical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate calibration means and equipment are used to measure parameters with and without optical adapter, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent combines the calibration functions for both adapter-equipped and adapter-less configurations into a single integrated calibration device. The imaging device captures images through the entire optical path including the adapter, and the control unit processes all necessary measurements and calculations within one system, eliminating the need for separate calibration equipment.
Solution Approach 2:
The calibration device is designed to perform multiple calibration functions: measuring optical parameters with the adapter attached, measuring parameters without the adapter, calculating distortion correction values, and storing calibration data for different configurations. This multi-functional approach replaces multiple specialized devices with one universal calibration system.
2Measurement precision
If parameters are measured separately and difference parameters are calculated, then measurement precision is improved, but calculation complexity increases
Solution Approach 1:
The control unit automatically performs all necessary calculations including computing difference parameters between measured values, determining distortion correction values, and generating calibration data. The system self-services by integrating the calculation functions within the same device that performs measurements, eliminating the need for external calculation processes.
Solution Approach 2:
The system uses feedback loops where the control unit continuously processes measured optical parameters, compares them against reference values, calculates correction values based on the differences, and applies these corrections to optimize image quality. This iterative feedback process simplifies the overall workflow while maintaining high precision.
3Measurement precision
If multiple separate measurement processes are used, then optical distortion correction accuracy is improved, but time consumption increases
Solution Approach 1:
The calibration process operates continuously within a single integrated system. The imaging device captures images, the control unit processes measurements and calculations, and correction values are generated in an uninterrupted sequence. This continuous operation eliminates the time losses associated with transitioning between separate calibration devices and processes.
Solution Approach 2:
The system performs preliminary measurements of optical parameters with the adapter attached during the initial calibration phase. These preliminary data are then used as the basis for calculating distortion correction values, allowing the system to efficiently determine correction parameters without requiring separate detailed measurement steps later.
Data Source
AI summary
An endoscopic calibration system that calibrates an endoscope, includes: an imaging part that acquires an image by an optical system in which an optical adapter and a scope of the endoscope are combined; a parameter measurement part that measures a first parameter indicating optical characteristics of an optical system in which a first scope and a first optical adapter are combined, a second parameter indicating optical characteristics of an optical system in which the first scope and a second optical adapter are combined, and a third parameter indicating optical characteristics of an optical system in which the second scope and the first optical adapter are combined; and a parameter estimation part that estimates a fourth parameter indicating optical characteristics of an optical system in which the second scope and the second optical adapter are combined using the first parameter, the second parameter, and the third parameter.