Endoscopic Imaging System Dual Sensor Segmentation
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Solution Overview
Problem
Current endoscopic imaging systems face challenges in achieving high sensitivity and easy handling, particularly in providing simultaneous high-resolution and high-sensitivity imaging without compromising the usability and precision of the imaging device.
Innovation Solution
A system comprising a light source, a rigid insertion portion with a light guiding path, and two imaging devices - a lightweight first imaging device for high spatial resolution and a heavyweight second imaging device for high sensitivity, where the second device is optically coupled via a flexible guiding portion, allowing for simultaneous image acquisition and real-time processing, with a control unit to correct for motion and combine image data for enhanced diagnostic images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single imaging device is used in the insertion portion, then the device structure is simple and easy to handle, but it cannot achieve both high spatial resolution and high sensitivity simultaneously
Solution Approach 1:
The imaging system is segmented into two separate imaging devices: a first imaging device with high spatial resolution and a second imaging device with high sensitivity. This segmentation allows each device to be optimized for its specific function without compromising the other, resolving the contradiction between achieving high measurement precision and maintaining simple device structure.
2Measurement precision
If a high-sensitivity imaging device is mounted at the distal end, then high sensitivity imaging is achieved, but the insertion portion becomes heavy and difficult to position precisely
Solution Approach 1:
The system transitions from a single-point imaging approach to a multi-dimensional imaging architecture where two imaging devices are positioned at different locations (distal end and proximal end). This dimensional change allows the high-sensitivity second imaging device to be located at the proximal end where it does not interfere with positioning precision, while still achieving high sensitivity imaging through optical coupling.
3Measurement precision
If multiple imaging devices are mounted at the proximal end, then both high resolution and high sensitivity imaging are achieved, but the device becomes bulky and complex to handle
Solution Approach 1:
The imaging system is segmented into two separate imaging devices positioned at different locations along the insertion portion. The first imaging device is mounted at the distal end for high spatial resolution, while the second imaging device is mounted at the proximal end for high sensitivity. This spatial segmentation prevents the devices from being bulky when combined at one location, maintaining handling flexibility while achieving both imaging qualities.
4Stability of the object's composition
If a rigid insertion portion is used, then structural stability is maintained, but flexibility and ease of insertion are reduced
Solution Approach 1:
The insertion portion is segmented into a rigid section and a flexible section. The rigid insertion portion maintains structural stability for precise positioning, while the flexible section provides ease of insertion and maneuverability. This segmentation allows the system to achieve both structural stability and operational flexibility simultaneously.
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 high-sensitivity and high-resolution imaging simultaneously, improving diagnostic conclusiveness and user convenience by allowing for precise positioning and flexible handling of the imaging device, while enhancing the dynamic range and accuracy of the images obtained.
Implementation Method 1
at least one light guiding path configured to guide the generated light to the distal end of the insertion portion and to guide light emanating from a medium within the object to the proximal end of the insertion portion
Implementation Method 2
the first detecting elements exhibiting a first sensitivity to light and being configured to detect a first part of the light emanating from the medium to obtain a first image of the medium
Implementation Method 3
the second detecting elements exhibiting a second sensitivity to light and being configured to detect the second part of the light emanating from the medium to obtain a second image of the medium, the second sensitivity of the second detecting elements being higher than the first sensitivity of the first detecting elements
Data Source
AI summary
The invention relates to a system for endoscopic imaging comprising a light source configured to generate light and an, in particular rigid, insertion portion configured to be inserted into an object and comprising a distal end, a proximal end and at least one light guiding path. The system further comprises a first imaging device mounted at the proximal end of the insertion portion and optically coupled to the light guiding path, the first imaging device comprising a plurality of first detecting elements exhibiting a first sensitivity to light. A flexible guiding portion comprising a distal end and a proximal end is provided to guide a second part of the light emanating from the medium from the distal end of the guiding portion to the proximal end of the guiding portion. A second imaging device provided at the proximal end of the flexible guiding portion comprises a plurality of second detecting elements exhibiting a second sensitivity to light, the second sensitivity of the second detecting elements being higher than the first sensitivity of the first detecting elements. A control unit is configured to derive at least one third image of the medium based on image data of the at least one first image of the medium and image data of the at least one second image of the medium. The invention further relates to a corresponding method for processing images.