Flow Velocity Vector Image Display Control for Blood Vessel Fluctuation

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Solution Overview

Problem

Existing image processing methods struggle to effectively visualize and ascertain the fluctuation of flow velocity vectors in blood vessels, leading to difficulties in identifying local blood flow characteristics amidst global flow trends.

Innovation Solution

An image processing device and method that acquires flow velocity vectors, generates a flow velocity vector image, and performs display control to change the display aspect based on the magnitude of fluctuation, using a differential filter to derive vector fluctuation data and adjust the display aspect, such as background color, to highlight regions with significant fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a flow velocity vector image is generated to visualize spatial distribution of flow velocity vectors, then the global flow trend can be observed, but it becomes difficult to identify local fluctuations in flow velocity vectors

Engineering Contradiction:
Improveflow velocity vector fluctuation detectionVSAvoidvisual identification of flow characteristics
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent applies local quality by making different parts of the visualization have different properties. Specifically, regions with large flow velocity vector fluctuations are highlighted with distinct display characteristics (such as different colors or intensities) compared to regions with small fluctuations. This allows local variations in flow characteristics to be visually distinguished from the global flow pattern, resolving the contradiction between observing global trends and identifying local fluctuations.

Inventive Principle:
Principle #3Local quality

2Loss of information

If the display aspect is kept uniform throughout the flow velocity vector image, then the overall structure is simple, but regions with significant flow fluctuations cannot be easily distinguished

Engineering Contradiction:
Improveflow velocity fluctuation informationVSAvoiddisplay control mechanism
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent employs color changes as a display aspect variation to encode flow velocity vector fluctuation information. By changing the color or intensity of the visualization based on the magnitude of fluctuations, the system preserves important flow characteristics without requiring complex additional display mechanisms. This resolves the contradiction by using a relatively simple color-based encoding scheme to convey detailed flow information.

Inventive Principle:
Principle #32Color changes

Data Source

PatentUS20240135536A1Image processing device, image processing method, and program
Publication Date: 2024.04.25 FUJIFILM CORP
  • US20240135536A1 patent drawing
  • US20240135536A1 patent drawing
  • US20240135536A1 patent drawing

AI summary

An image processing device includes a processor, in which the processor is configured to acquire a flow velocity vector of a fluid in a structure, generate a flow velocity vector image obtained by visualizing a spatial distribution of the flow velocity vector, and perform display control for changing a display aspect according to a magnitude of fluctuation of the flow velocity vector, in the flow velocity vector image.