Endoscope Frame Rate Adjustment for Synchronized Display

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Solution Overview

Problem

Current endoscope systems face challenges in synchronously displaying normal and computational images without causing an uneasy feeling due to delays or motion of the photographic subject, particularly when computational processing has a high calculation load, leading to insufficient frame rates for motion detection.

Innovation Solution

The endoscope system incorporates an image obtaining unit, computational image generation unit, normal image generation unit, motion detection unit, frame adjustment unit, and display control unit to adjust the frame rate and display method based on computational processing time and motion detection, ensuring synchronized display of normal and computational images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If computational processing is performed to generate computational images with heavy calculation load, then the diagnostic capability is improved, but the frame rate decreases and display synchronization becomes difficult

Engineering Contradiction:

Improvediagnostic capabilityVSAvoidframe rate

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The system performs motion detection and frame rate determination in advance before actual image display. By detecting motion of the photographic subject and determining the frame rate beforehand, the system prepares synchronization parameters proactively, allowing computational images to be generated and displayed at the predetermined frame rate without causing display lag or desynchronization, thus maintaining both high diagnostic capability and smooth display performance

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the frame rate based on the detected motion of the photographic subject. When motion is detected, the frame rate is increased to maintain display synchronization; when motion is minimal, the frame rate can be reduced to decrease computational load. This dynamic adjustment allows the system to optimize between diagnostic quality and display smoothness based on real-time conditions

Inventive Principle:

Principle #15Dynamics

2Speed

If the frame rate is increased to match motion of the photographic subject, then display synchronization is improved, but the computational processing load increases

Engineering Contradiction:

Improveframe rateVSAvoidcomputational processing load

Core Design Contradiction:

SpeedVSPower

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses motion detection feedback to continuously monitor the photographic subject's movement and adjusts the frame rate accordingly. This feedback mechanism ensures that the frame rate is optimized to match actual display needs, preventing unnecessary computational processing while maintaining synchronization, thus reducing overall computational processing load

Inventive Principle:

Principle #23Feedback

3Stability of the object's composition

If display of normal image is delayed to synchronize with computational image, then display synchronization is improved, but the real-time observation capability deteriorates

Engineering Contradiction:

Improvedisplay synchronizationVSAvoidreal-time observation capability

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The system determines the frame rate and prepares synchronization parameters in advance before actual image display. By calculating and setting the frame rate beforehand based on motion detection, the system minimizes the required delay for normal image display while ensuring synchronization with computational images. This preliminary preparation reduces the time loss for real-time observation while maintaining display synchronization

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11596293B2Endoscope system and operation method therefor

Publication Date: 2023.03.07 FUJIFILM CORP

AI summary

In an endoscope system, a frame adjustment unit makes a frame adjustment for changing the number of frames to be displayed per unit time (frame rate) for a normal image and for a computational image on the basis of a computational processing time detected by a computational processing time detection unit and an amount of motion detected by a motion detection unit. A display control unit determines a display method for the normal image and the computational image on the basis of the amount of motion, and the normal image and the computational image are displayed on a monitor in accordance with the display method.