Structured-Light Projection Selection Using Reference Images
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Solution Overview
Problem
Existing projection methods struggle with selecting the appropriate type of structured light based on the display surface and installation environment, making it difficult for users to determine the optimal choice.
Innovation Solution
A projection method that includes projecting reference images, capturing these images, and determining the type of structured light to be used based on differential image analysis and user input, allowing for automatic selection of the most suitable structured light type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user manually selects the type of structured light based on display surface and installation environment, then the projection accuracy can be optimized for specific conditions, but the ease of operation deteriorates due to the complexity of determination
Solution Approach 1:
The projection device automatically determines the appropriate structured light type by analyzing the captured reference image and comparing it with stored template images, eliminating the need for manual user selection and making the system self-configuring based on environmental conditions
Solution Approach 2:
The system changes the parameter of structured light type selection dynamically based on analyzed conditions from the reference image, automatically adapting to different display surfaces and installation environments through image analysis rather than manual parameter setting
2Adaptability or versatility
If the system provides multiple types of structured light for different conditions, then the adaptability improves, but the device complexity increases due to the need for multiple configurations
Solution Approach 1:
A single projection device incorporates multiple structured light types (parallel, orthogonal, oblique) and uses image analysis to automatically select the appropriate type, making the device universal and adaptable to various conditions without requiring separate devices or complex manual configuration
Solution Approach 2:
The system performs preliminary analysis by capturing and processing a reference image before actual projection, identifying the display surface characteristics in advance and pre-determining the suitable structured light type, thereby simplifying the subsequent projection process
Data Source
AI summary
A projection method includes projecting a first reference image onto a projection target, acquiring a first captured image by capturing the first reference image by a capturing device having a capturing element, projecting a second reference image onto the projection target, acquiring a second captured image by capturing the second reference image by the capturing device, determining a type of a structured light to be projected from a projection device based on a differential image between the first captured image and the second captured image, a pixel number of a light modulation element, and a pixel number of the capturing element by a processing device, and projecting the structured light from the projection device according to a result of the determination of the type of the structured light.