Projector Pattern Display Control for Undetected Region Highlighting

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Solution Overview

Problem

Existing technologies fail to accurately identify which dot images are not detected in a pattern image captured by a camera, preventing users from addressing the issue effectively.

Innovation Solution

A projector projects a first pattern image, captures it with a camera, identifies regions of incomplete detection, and displays a second pattern image with distinguishable colors to highlight these regions, allowing manual adjustment by the user.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a pattern image is projected and captured by a camera for detection, then the detection process can be automated, but the system cannot identify which specific regions fail to be detected

Engineering Contradiction:

Improveautomated detection processVSAvoidinformation about undetected regions

Core Design Contradiction:

Extent of automationVSLoss of information

Solution Approach 1:

The patent applies color changes by displaying the first pattern image in a first color and the second pattern image in a second color different from the first color. This color differentiation allows the system to visually indicate which regions were successfully detected and which regions failed detection, thereby preventing information loss about undetected regions while maintaining automated detection processes.

Inventive Principle:

Principle #32Color changes

2Device complexity

If a single pattern image is used for detection, then the process is simple, but users cannot distinguish between detected and undetected regions

Engineering Contradiction:

Improvedetection process simplicityVSAvoiduser ability to identify detection issues

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The patent uses color changes to display the first pattern image in a first color and the second pattern image in a second color. This simple visual differentiation enables users to easily identify which regions were not detected without adding complex procedures, thus maintaining ease of operation while providing necessary detection information.

Inventive Principle:

Principle #32Color changes

Solution Approach 2:

The patent performs preliminary action by first displaying the first pattern image in the first color, capturing it with the camera, and determining detection status before displaying the second pattern image in a different color. This sequential approach with preliminary detection and visualization allows users to understand detection results clearly while keeping the overall process relatively simple.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If the system does not provide visual feedback about detection failures, then the interface is simple, but users cannot address detection issues effectively

Engineering Contradiction:

Improveinterface simplicityVSAvoiduser ability to resolve detection problems

Core Design Contradiction:

Device complexityVSEase of manufacture

Solution Approach 1:

The patent applies color changes by displaying the first pattern image in a first color and the second pattern image in a second color different from the first color. This visual feedback mechanism enables users to effectively identify and address detection issues without significantly complicating the interface, thus resolving the contradiction between interface simplicity and user effectiveness.

Inventive Principle:

Principle #32Color changes

Data Source

PatentUS20250337868A1Display control method, display control program, and projector

Publication Date: 2025.10.30 SEIKO EPSON CORP

AI summary

A display control method includes causing a projector to project and display a first pattern image on a screen; causing a camera to capture an image of the first pattern image to acquire a captured image; identifying a first region that is a region that fails to be normally detected out of the first pattern image based on the captured image; and causing the projector to display a second pattern image that is the first pattern image so processed that the first region is distinguishable from a second region that is a region excluding the first region out of the first pattern image.