Projection System Correcting Object Shape and Color

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Solution Overview

Problem

Existing projection devices struggle to project suitable images on uneven surfaces, often distorting images due to the presence of objects on the projection surface, which hampers convenience.

Innovation Solution

A projection system that includes an imaging unit to detect the shape and color of objects on the surface, an image correction unit to eliminate these features, and a projection unit to project the corrected image, ensuring distortion-free images on any surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the projection device projects images on uneven surfaces with objects, then the projection device can be used on various surfaces, but the images become distorted and unsuitable

Engineering Contradiction:

Improveprojection surface adaptabilityVSAvoidimage projection accuracy

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary actions by capturing an image of the projection surface before projection, detecting objects and unevenness in advance, and pre-calculating correction data to eliminate their effects before the actual projection occurs

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses feedback by capturing the projection surface image, analyzing object positions and surface unevenness, calculating correction data based on this analysis, and applying the correction to achieve accurate projection despite surface variations

Inventive Principle:

Principle #23Feedback

2Adaptability or versatility

If the projection device requires manual input of image shape data, then the device can adapt to surface unevenness, but the operation becomes complex and inconvenient

Engineering Contradiction:

Improvesurface adaptation capabilityVSAvoiduser operation convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system performs self-service by automatically capturing the projection surface image, detecting objects and unevenness, calculating correction data, and applying corrections without requiring any manual input from the user

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system replaces the manual mechanical input method with an automated optical and computational system that uses imaging units, image analysis, and computer processing to automatically determine and apply corrections

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10345687B2Projection system, projection method, and projection program

Publication Date: 2019.07.09 OPTIM

AI summary

The present invention is to provide a projection system, a projection method, and a projection program that improve the convenience. The projection system 1 that corrects an image to be projected on a projection surface images the projection surface, detects the shape of an object existing on the imaged projection surface by image analysis, corrects an image to be projected so as to eliminate the shape of the detected object, and projects the corrected image on the projection surface.