Projection Trimming for Target Boundary Containment
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Solution Overview
Problem
Mobile projectors often project images or content that are either too small for easy viewing or spill beyond the intended target, causing distractions and potential exposure of private information in public spaces.
Innovation Solution
A method and apparatus that determine the bounds of a projection target, generate a content area and a void area within those bounds, and adjust the scaling factor to ensure the content is projected within the target area without spilling onto surrounding surfaces, using a combination of camera imaging, object recognition, and gesture detection to refine the projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the projected image is enlarged to provide a larger view, then the viewing experience is improved, but the image may spill beyond the target boundaries causing distractions and privacy exposure
Solution Approach 1:
The system performs preliminary detection of the target object's boundaries using a camera and object recognition algorithms before projecting the image. The projected image is then scaled and positioned in advance to fit precisely within the detected boundaries, preventing any spilling beyond the target while maintaining maximum image size for optimal viewing experience
Solution Approach 2:
The system uses camera feedback to detect the target object and its boundaries, then adjusts the projection parameters accordingly. This closed-loop approach ensures that the projected image is continuously optimized to fit within the target boundaries, resolving the contradiction between image size and boundary compliance
2Manufacturing precision
If the projected image is scaled to fit within target boundaries, then privacy and precision are improved, but the image size may become too small for easy viewing
Solution Approach 1:
The system dynamically adjusts the projection parameters based on real-time detection of the target object's size, shape, and position. The image scaling factor is continuously optimized to maximize the projected image area while ensuring it remains within the detected boundaries, allowing the image to be as large as possible without spilling
Solution Approach 2:
The system changes the scaling parameter of the projected image based on the detected target boundaries. By adjusting the scale factor dynamically according to the target's dimensions and distance, the system achieves maximum image size that fits precisely within boundaries, resolving the precision-size contradiction
3Manufacturing precision
If the projection is adjusted to fit the target, then the content is contained within boundaries, but the system complexity increases due to camera imaging and object recognition requirements
Solution Approach 1:
The system uses a multi-functional approach where the camera serves multiple purposes: capturing the target object for boundary detection, providing feedback for projection adjustment, and enabling object recognition. This universal use of the camera reduces the need for separate sensors and simplifies the overall system architecture while achieving precise content containment
Solution Approach 2:
The system performs self-adjustment by automatically detecting target boundaries and optimizing projection parameters without requiring manual intervention. The built-in camera and processing algorithms enable the system to self-calibrate and self-optimize the projection, reducing the need for complex external control mechanisms
Data Source
AI summary
Systems and methods are provided for trimming content for projection within the bounds of a projection target. The systems and methods trim the content for projection based on one or more characteristics of the projection target, including a shape, outline, and distance to the projection target. Moreover, the systems and methods designate void areas where no content will be projected based on the one or more characteristics, and the void areas will be generated or otherwise projected along with the content so that the content is projected onto the projection target and the void areas are projected outside of the projection target such that the projected content does not significantly spill onto surfaces or objects outside of the projection target.