Multi-Projector System Automatic Position Detection

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Solution Overview

Problem

Conventional projection systems require complex manual settings and numerous devices, leading to increased installation time and costs, as they lack an efficient method for automatically determining projector positions and projection modes to integrate partial image frames into a large, seamless image.

Innovation Solution

A projection system comprising a processing device and multiple projectors that automatically determine projection modes and disposing sequences by projecting a grid-point image, capturing images, and analyzing them to adjust settings, allowing for automatic setup and integration of image frames.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual settings are used for each projector, then projection parameters can be precisely adjusted, but installation time and complexity increase significantly

Engineering Contradiction:
Improveprojection parameter accuracyVSAvoidinstallation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system enables automatic self-configuration by having projectors autonomously detect their own positions and determine projection modes through image capture and analysis, eliminating the need for manual parameter adjustment while maintaining precise positioning

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses feedback mechanisms where projectors capture images of the projection plane, analyze the captured images to determine their relative positions and projection modes, and automatically adjust settings based on this feedback information

Inventive Principle:
Principle #23Feedback

2Area of stationary object

If multiple devices are deployed for large area projection, then coverage area increases, but system complexity and installation cost increase

Engineering Contradiction:
Improveprojection coverage areaVSAvoidsystem configuration complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The system divides the large area projection task into multiple projector units, each projecting a partial image frame, and automatically integrates these segments into a complete large-area projection without requiring complex manual configuration

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each projector in the system is designed to perform multiple functions: projecting images, capturing images of the projection plane, and participating in automatic position detection and mode determination, reducing the need for separate dedicated devices

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If automatic setting is implemented, then installation time is reduced, but the system requires complex image processing and analysis capabilities

Engineering Contradiction:
Improvesetup speedVSAvoidimage processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses an intermediary image processing module that acts as a mediator between the projectors and the control system, handling the complex image analysis tasks and translating them into configuration parameters for automatic setup

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10630949B2Projection system and automatic setting method thereof
Publication Date: 2020.04.21 CORETRONIC CORPORATION
  • US10630949B2 patent drawing
  • US10630949B2 patent drawing
  • US10630949B2 patent drawing

AI summary

A projection system including a processing device and a plurality of projectors is provided. The projectors are disposed above a projection plane or below the projection plane. The processing device determines whether the projectors are disposed above the projection plane or below the projection plane according to a firmware setting of each of the projectors. When one of the projectors disposed above the projection plane projects a projection mode determination image, the processing device analyzes captured images captured by remainders of the projectors in respective image capture areas of the projection plane to determine projection modes of the projectors. In addition, an automatic setting method is also provided. The projection system of the invention may be readily set up based on various projection requirements.