Endoscope Measurement Edge Selection
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Solution Overview
Problem
Existing line-based measurement methods require users to designate multiple reference points and perform complex manipulations to set reference lines, which is time-consuming and effort-intensive, especially when trying to measure distances between a measurement point and a reference line in industrial settings using endoscopes.
Innovation Solution
A measurement apparatus and program that allows users to designate a single reference point to set an edge extraction region and select a reference edge from extracted edges, simplifying the process by displaying edge information and enabling three-dimensional coordinate calculation and reference line calculation based on user input, reducing the need for precise positioning of reference points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users designate multiple reference points and perform complex manipulations to set reference lines, then measurement precision can be maintained, but the time and effort required for setting reference lines increases significantly
Solution Approach 1:
The system automatically extracts edges from the image and generates candidate reference edges without requiring users to manually designate multiple reference points. The edge extraction unit performs automatic edge detection and the reference edge selection unit presents pre-processed candidate edges to the user, allowing the system to serve itself in the reference setting process while maintaining measurement precision
Solution Approach 2:
The system performs preliminary edge extraction and candidate reference edge generation before the user needs to set the reference line. By pre-processing the image to identify and present candidate edges, the system reduces the subsequent user workload and time required for reference line setting while ensuring accurate measurement points are available
2Reliability
If users designate multiple reference points to define a reference line, then the reference line can be accurately established, but the operational complexity and user effort increase
Solution Approach 1:
The edge extraction unit automatically performs edge detection and the reference edge selection unit automatically identifies and presents candidate reference edges from the extracted edges. This self-service mechanism eliminates the need for users to manually designate multiple reference points, significantly reducing operational complexity while maintaining reliable reference line establishment through automated candidate selection
Solution Approach 2:
The system replaces the manual mechanical process of designating multiple reference points with an automated image processing system. The edge extraction unit uses image processing algorithms to automatically identify edges, and the reference edge selection unit automatically selects candidate reference edges, substituting manual operations with automated computational methods
3Ease of operation
If the system extracts and displays multiple extracted edges with index values, then users can easily select the appropriate reference edge, but the device complexity increases
Solution Approach 1:
The reference edge selection unit acts as an intermediary between the edge extraction unit and the user. It receives multiple extracted edges, assigns index values to organize them, and presents them in a structured manner on the display unit. This intermediary function simplifies user interaction by providing organized candidate edges with clear identification, while the complexity of edge processing is handled internally by the selection unit
Data Source
AI summary
A region-setting unit sets, in an image, a region based on one reference point designated by a user in the image or a predetermined region as an extraction region. An edge extraction unit extracts an edge of the subject based on an image of the extraction region. When a plurality of edges are extracted, a display control unit causes a line indicating the plurality of extracted edges to be displayed on a display unit together with the image. An edge selection unit selects a reference edge from among the plurality of extracted edges based on an instruction from the user. A three-dimensional coordinate calculation unit calculates three-dimensional coordinates corresponding to points in the image. A reference line calculation unit calculates a reference line on a space based on the three-dimensional coordinates corresponding to points constituting the reference edge.