Projector Geometric Correction UI for Different Surface Shapes
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Solution Overview
Problem
Existing projectors struggle to select the optimal shape correction for various projection surfaces, such as screens or walls, due to differing positional relations between the projector and the projection surface, making it difficult for users to achieve accurate image display.
Innovation Solution
The projector is configured to receive user input selecting a first or second projection surface shape, displaying a user interface for geometric correction specific to that shape, allowing for tailored geometric correction based on the selected surface type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single geometric correction interface is used for all projection surfaces, then the device complexity is reduced, but the manufacturing precision of image display deteriorates because optimal shape correction cannot be selected for different surfaces
Solution Approach 1:
The geometric correction interface is segmented into multiple types (first type for screens, second type for walls) corresponding to different projection surface characteristics. The controller selectively displays the appropriate interface type based on detected projection surface shape, enabling precision optimization for each surface type while maintaining manageable system complexity through structured division.
2Manufacturing precision
If multiple geometric correction interfaces are provided for different projection surfaces, then the manufacturing precision of image display is improved, but the device complexity increases
Solution Approach 1:
The system employs automatic detection of projection surface shape using the imaging device, and the controller automatically selects and displays the appropriate geometric correction interface type without requiring manual user specification. This self-service mechanism reduces the burden on users while maintaining multiple interface types for different surfaces, balancing precision improvement with acceptable complexity through automation.
3Ease of operation
If automatic detection of projection surface shape is implemented, then the ease of operation is improved, but the device complexity increases due to additional sensing and processing requirements
Solution Approach 1:
The imaging device, originally designed for capturing projection images, is also utilized for detecting the shape of the projection surface. This multi-functional use of existing hardware components enables automatic surface detection and classification without requiring separate dedicated sensors, thereby improving ease of operation while minimizing the increase in device complexity through resource sharing.
Data Source
AI summary
A control method for a projector includes receiving selection of one of a first shape and a second shape as a shape of a projection surface onto which image light is projected, when the first shape is selected, displaying, on the projection surface, a user interface for geometric correction associated with the first shape, and, when the second shape is selected, displaying, on the projection surface, a user interface for geometric correction associated with the second shape.