Projector Dynamic Image Splitting for Presenter Visibility
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Solution Overview
Problem
Existing projector technologies do not effectively address the issue of a presenter's visibility and interaction with a projected image when they are between the projector and the screen, as they primarily focus on reducing glare rather than dynamically controlling the image area based on the presenter's position.
Innovation Solution
A projector system that includes a projecting section, an imaging section to capture the presenter's position, a specifying section to dynamically determine the split position of the image area, and a display control section to split the projection surface into multiple areas, allowing for different images to be projected in each area based on the presenter's movement and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the presenter is located between the projector and the screen, then the presenter can interact with the projection surface, but the glare from the projected light becomes obstructive
Solution Approach 1:
The projection surface is divided into multiple regions (first region and second region) based on the presenter's position. The imaging section captures the projection surface and identifies the presenter's location, then the control section splits the display area so that different image portions are shown in different regions. This segmentation allows the presenter to view the full image on the screen while the projection device displays relevant information in the region opposite to the presenter's position, resolving the contradiction between interaction capability and glare obstruction.
2Ease of operation
If the image area is split dynamically based on presenter position, then visibility and interaction are improved, but the device complexity increases
Solution Approach 1:
The imaging section, which is typically used for capturing the projection surface for basic functions like trapezoidal correction or keystone adjustment, is repurposed to also detect the presenter's position and enable dynamic image splitting. By making the imaging section multi-functional, the system achieves dynamic adaptability without adding separate complex detection hardware, thus improving presenter visibility while controlling device complexity.
Solution Approach 2:
The system continuously captures images of the projection surface, detects the presenter's position in real-time, and dynamically adjusts the image splitting based on this feedback. This closed-loop control allows the projection device to automatically adapt to the presenter's movements and maintain optimal display configuration without requiring manual intervention, balancing improved interaction with automated control that minimizes operational complexity.
Data Source
AI summary
A projector includes: a projecting section that projects an image onto a projection surface; an imaging section that captures the image projected on the projection surface and a person located between the projecting section and the projection surface, and obtain a captured image; a specifying section that specifies a split position of the projection surface based on a position of the person in the captured image; and a display control section that splits the projection surface into a plurality of areas at the split position specified by the specifying section and controls the projecting section so as to project different images in the plurality of areas.