Endoscope Zoom Interlocking and Aspect Ratio Adaptation
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Solution Overview
Problem
Conventional endoscope systems require separate adjustments for optical and electronic zoom functions, increasing operation complexity and time, and face challenges in displaying and recording images with different aspect ratios, which affects visibility and recording quality.
Innovation Solution
An endoscope system that integrates optical and electronic zoom functions through interlocking settings, allowing automatic selection of zoom regions based on edge or brightness components, and optimizes image display and recording layouts to address aspect ratio differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate adjustments are made for optical and electronic zoom functions, then each zoom function can be independently optimized, but operation complexity and setup time increase
Solution Approach 1:
The patent combines optical zoom and electronic zoom adjustments into a single unified operation. When the zoom lens moves to change magnification, the control section automatically adjusts the electronic zoom scaling factor to maintain a constant overall magnification, eliminating the need for separate adjustments and reducing operational complexity
Solution Approach 2:
The system implements feedback control where the control section monitors the zoom lens position and automatically compensates by adjusting the electronic zoom scaling factor. This closed-loop control ensures that the overall magnification remains constant while simplifying the user interface to a single zoom control
2Stability of the object's composition
If aspect ratios are not adjusted for different recording devices, then the display format remains consistent, but image quality and visibility deteriorate
Solution Approach 1:
The patent dynamically adjusts the display aspect ratio based on the detected recording device type. The control section identifies whether the recording device is a DVD recorder, Blu-ray recorder, or other device, and automatically selects the appropriate aspect ratio (4:3 or 16:9) to optimize image quality and visibility for each device type
Solution Approach 2:
The system changes the display parameter (aspect ratio) according to the recording device type. By detecting the device type and corresponding aspect ratio, the control section adjusts the image display parameters to match the optimal format for each recording device, thereby maintaining high image quality across different devices
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
The system simplifies operations by interlocking zoom functions, reduces setup complexity, and enhances image quality and visibility across different displays and recording devices by automatically selecting zoom regions and adjusting image layouts.
Implementation Method 1
a photoelectric conversion element that subjects an image formed by an optical lens to photoelectric conversion
Data Source
AI summary
An endoscope system includes: a photoelectric conversion element; a contour enhancing section that detects an edge component in a picked-up image subjected to the photoelectric conversion, thereby generating a contour enhancement signal; an electronic zoom region determining section that determines an electronic zoom region in the picked-up image based on a strength of the contour enhancement signal; an instruction section that provides an instruction for enlargement/reduction of the image; a parameter setting section that sets a zoom parameter for an electronic zoom section according to the instruction provided by the instruction section; and the electronic zoom section that performs an electronic zoom of the picked-up image for the electronic zoom region determined, according to the parameter set by the parameter setting section.