Projection Control Device Marker Visibility Management

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Solution Overview

Problem

Existing technologies lack the ability to effectively control the visibility of a marker's position on a projection surface while projecting an image, which can lead to interference and reduced visibility of the marker.

Innovation Solution

A control device that uses a processor to instruct a projection apparatus to project an image, acquire an image of the projection surface, detect a specific marker, and change a partial region of the image based on the marker's position, thereby controlling the visibility of the marker.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a marker is displayed on a projection surface together with a projection image, then the marker position can be indicated, but the visibility of the marker is reduced due to interference with the projection image

Engineering Contradiction:

Improvemarker position informationVSAvoidvisibility interference

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by selectively modifying only the partial region of the projection image where the marker is located. Instead of changing the entire image, the system adjusts brightness or other properties specifically in the marker's region to enhance marker visibility without affecting other parts of the projection image.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent utilizes color changes by modifying the brightness or color properties of the projection image in the marker region. By changing the luminance or color characteristics of the partial region, the system creates contrast that enhances marker visibility while maintaining the overall projection image quality.

Inventive Principle:

Principle #32Color changes

2Object-affected harmful factors

If the marker visibility is enhanced by changing the projection image, then the marker can be recognized more easily, but the projection image quality may be degraded

Engineering Contradiction:

Improvemarker visibilityVSAvoidprojection image quality

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The system applies local quality by limiting the modifications to only the partial region containing the marker. This localized approach ensures that the marker visibility is enhanced without degrading the quality of the rest of the projection image, as only the necessary minimal region is adjusted.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent implements partial action by making adjustments only to the extent necessary for marker visibility enhancement. The system modifies the projection image properties only in the marker region and to the minimum degree required, avoiding excessive changes that would degrade overall image quality.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250071243A1Control device, moving object, control method, and control program

Publication Date: 2025.02.27 FUJIFILM CORP

AI summary

A control device includes a processor. The processor is configured to: instruct a projection apparatus to project a first image to a projection surface; acquire a second image obtained by imaging the projection surface via an imaging apparatus; detect a specific marker from the second image; and change a partial region of the first image based on a position of the marker, and change the partial region such that visibility of the marker is reduced.