Projector Surface Adaptation via Segmented Visual Aspects
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Solution Overview
Problem
Existing image projection systems lack the ability to effectively project images onto complex surfaces such as flat, concave, and convex surfaces with high degree of freedom, as they do not adequately account for the varying distances and curvatures of these surfaces.
Innovation Solution
A projector system that includes a light source, a light modulator, a distance sensor, and a controller, which detects different sections of the projection surface (flat, concave, and convex) and projects image light in specific visual aspects tailored to each section, adjusting the color and luminance based on detected distances to ensure focused and high-freedom image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single visual aspect is used for all projection surfaces, then the projection system is simple to operate, but the degree of freedom of the projected image is limited
Solution Approach 1:
The projection surface is divided into multiple sections based on distance and curvature characteristics. The controller identifies different sections (flat, concave, convex) and applies different visual aspects to each section, enabling high-degree-of-freedom image projection while maintaining operational simplicity through automated segmentation.
Solution Approach 2:
Different visual aspects are applied to different sections of the projection surface based on their specific characteristics. Flat sections receive one type of image rendering, while concave and convex sections receive different visual aspects tailored to their curvature, optimizing image quality for each local area.
2Manufacturing precision
If the projection system accounts for varying distances and curvatures of surfaces, then image projection accuracy is improved, but the device complexity increases
Solution Approach 1:
The controller pre-stores multiple types of images and visual aspects corresponding to different surface conditions (flat, concave, convex). Before projection, the system identifies the surface type and selects the appropriate pre-prepared visual aspect, eliminating the need for complex real-time calculations while maintaining high projection accuracy.
Solution Approach 2:
The system creates and stores multiple copies of images with different visual aspects tailored to specific surface types. When projecting onto a particular surface type, the controller selects the corresponding pre-processed image copy, ensuring accurate projection without requiring complex real-time image processing.
3Manufacturing precision
If different visual aspects are projected onto different surface sections, then image clarity on complex surfaces is improved, but the operation complexity increases
Solution Approach 1:
The projection system automatically identifies different surface sections and selects appropriate visual aspects without user intervention. The controller performs surface analysis and autonomously applies the correct visual aspect to each section, maintaining ease of operation while achieving high image clarity on complex surfaces.
Solution Approach 2:
The system uses distance sensor feedback to identify surface sections and their curvature characteristics. Based on this feedback, the controller automatically adjusts the visual aspect for each section, ensuring clear image projection on complex surfaces while keeping the operation simple through automated feedback-driven adjustment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the projection of images with high degree of freedom onto various surface types by accurately accounting for surface curvature and distance, resulting in clear and graded images on flat, concave, and convex surfaces.
Implementation Method 1
a first distance L1 between the reference plane ST and the first section Q11 of the first flat surface PS11, a second distance L2 between the reference plane ST and the second section Q21 of the concave surface PS2
Data Source
AI summary
A projection method includes detecting a first section formed of a flat surface at a projection surface, detecting a second section formed of a concave surface at the projection surface, projecting image light in a first visual aspect onto the first section by a projector, and projecting image light in a second visual aspect different from the first visual aspect onto the second section by the projector.