Projection Apparatus Surface Adaptation

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Solution Overview

Problem

Existing projection technologies fail to accurately project high-quality images on non-dedicated surfaces with complex shapes or colors, such as curtains with patterns or curved surfaces, as they assume a flat, single-colored projection surface.

Innovation Solution

A projection apparatus that includes a projection unit, a projection image acquisition unit to capture the surface shape and color information, and a projection control unit to determine the optimal projection range and position based on the acquired information, allowing for precise image projection on irregular surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If projection is performed on a non-dedicated surface with complex shape or color, then the projection area and versatility are improved, but the image quality and shape definition deteriorate

Engineering Contradiction:
Improveprojection areaVSAvoidimage shape definition
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary actions by capturing the projection surface information (shape and color) before actual image projection, then uses this information to calculate and determine the optimal projection range and position, ensuring high-quality projection on non-dedicated surfaces

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from the captured projection surface information to adjust and determine the projection range and position, creating a closed-loop control system that adapts to the actual surface conditions to maintain image quality

Inventive Principle:
Principle #23Feedback

2Device complexity

If the entire projection surface is assumed to be flat and single-color, then the device complexity is reduced, but the adaptability to different projection targets deteriorates

Engineering Contradiction:
Improveprocessing complexityVSAvoidprojection target adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system performs self-service by automatically capturing projection surface information and determining optimal projection parameters without requiring manual configuration or complex preprocessing, enabling the device to adapt to different surfaces through self-measurement

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes parameters by dynamically determining projection range and position based on captured surface information, allowing the projection system to adapt to different surface shapes and colors through parameter adjustment rather than structural complexity

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10819964B2Projection apparatus, projection method, and storage medium
Publication Date: 2020.10.27 CASIO COMPUTER CO LTD
  • US10819964B2 patent drawing
  • US10819964B2 patent drawing
  • US10819964B2 patent drawing

AI summary

A projection apparatus includes a projection surface information acquisition unit that acquires a surface shape and/or color information of the projection target surface from the projection image acquired by the projection image acquisition unit; and a projection control unit that determines, based on the surface shape and/or the color information of the projection target surface acquired by the projection surface information acquisition unit, a projection range and a projection position where projection is performed, from a projectable range of the projection unit, and performs projection so as to obtain a defined shape on the projection target surface.