Stereo-Microscope Image Segmentation for Obstructed Views

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Solution Overview

Problem

Current microscopes face challenges in creating stereoscopic images when dilators are used, as they limit the stereo basis, leading to either two-dimensional imaging or limited depth information, making surgical procedures more difficult in partially obstructed views.

Innovation Solution

The system processes image data from two stereoscopic imaging sensors to combine stereoscopic and two-dimensional views, allowing for a larger stereo basis and peripheral views by generating a combined image data set with a stereoscopic view in one region and a two-dimensional view in another, using image processing to handle partial obstructions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a dilator is used to reduce wound size, then the wound tract size is reduced, but the ability to create stereoscopic images is limited

Engineering Contradiction:
Improvewound tract sizeVSAvoidstereoscopic imaging capability
Core Design Contradiction:
Volume of moving objectVSLoss of information

Solution Approach 1:

The image data is segmented into multiple regions: a first region containing stereoscopic image data from both imaging sensors, and a second region containing two-dimensional image data from one imaging sensor. This segmentation allows the system to preserve stereoscopic imaging capability in the central region while utilizing peripheral regions for additional contextual information, thereby maintaining imaging quality despite the physical constraints imposed by the dilator.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If a small stereo basis is used to get clear images with a dilator, then image clarity is improved, but depth information is limited

Engineering Contradiction:
Improveimage clarityVSAvoiddepth information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The system transitions from relying solely on spatial stereo basis to utilizing the temporal and data-combination dimensions. By capturing images at different positions of the imaging sensors and computationally combining them to generate a merged image with enhanced depth information, the system recovers depth perception that would otherwise be lost due to the small physical stereo basis required by the dilator constraint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If two-dimensional imaging is used when a dilator is present, then imaging is simpler, but the surgical procedure becomes harder to perform

Engineering Contradiction:
Improveimaging system complexityVSAvoidsurgical procedure ease
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The system dynamically changes the imaging parameters by adjusting the positions of the first and second imaging sensors relative to each other. By capturing image data at multiple sensor positions and combining them through image processing, the system generates merged images with enhanced depth information and stereoscopic views, thereby improving surgical visibility and ease of operation while maintaining manageable system complexity through automated processing.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3859423A1System, method and computer program for a stereo-microscope and stereoscopic microscope system
Publication Date: 2021.08.04 LEICA INSTRUMENTS (SINGAPORE) PTE LTD
  • EP3859423A1 patent drawingFigure 1a
  • EP3859423A1 patent drawingFigure 1b~1c
  • EP3859423A1 patent drawingFigure 2~3a

AI summary

Examples relate to a system (110), a method and a computer program for a microscope (120), and to a microscope system (100) comprising the microscope (120) and a system which comprises one or more processors and one or more storage devices. The system is configured to obtain first image data of a sample from a first optical imaging sensor of the microscope. The system is configured to obtain second image data of the sample from a second optical imaging sensor of the microscope. The system is configured to combine the first image data and the second image data to obtain combined image data. A first region of the combined image data comprises a stereoscopic view of a first region of the sample that is based on the first and the second image data. A second region of the combined image data comprises a two-dimensional view of a second region of the sample that is based on one of the first image data and the second image data.