Projection Device Depth Scan Cut-Out Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Digital projectors face challenges in accurately projecting images onto non-flat or obstructed surfaces due to interference from objects, which can disrupt the image display.
Innovation Solution
A projection device equipped with a camera and projector that performs a depth scan to generate a 3D model of the surface, allowing for the determination of boundaries and cut-out areas, and enabling the designation of action areas based on environmental conditions, ensuring accurate image projection despite surface irregularities and obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If keystone correction is used to compensate for non-flat surfaces, then image rectangularity is improved, but image accuracy is degraded
Solution Approach 1:
The projection surface is divided into multiple regions (flat regions and non-flat regions) based on depth information. The projector selectively applies different projection strategies to each region, projecting only onto valid flat surfaces and excluding obstructed non-flat areas, thereby maintaining image accuracy while adapting to surface variations.
Solution Approach 2:
The system performs a depth scan of the projection surface before projecting the image. This preliminary action identifies the boundaries between flat and non-flat regions, allowing the system to pre-determine the valid projection area and avoid distorting the image through keystone correction.
2Area of stationary object
If projection is performed on obstructed surfaces, then image coverage area is improved, but image display accuracy is degraded
Solution Approach 1:
The projection surface is segmented into valid projection regions and obstructed regions based on depth scan data. The system identifies boundaries between these regions and restricts projection to only the valid flat surfaces, ensuring image accuracy is maintained while maximizing the usable projection area within those constraints.
Solution Approach 2:
The depth scanning capability, which reveals obstructed surfaces and potential projection errors, is converted into a benefit by using the depth information to intelligently determine valid projection regions. This allows the system to adapt to obstructed surfaces and non-flat geometries, transforming what would be projection failures into opportunities for optimized image display.
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
The solution enables precise image projection onto complex surfaces by adjusting boundaries and defining action areas, ensuring clear image display even on non-flat or obstructed surfaces, enhancing the projector's adaptability and user experience.
Implementation Method 1
performs a depth scan to generate a 3D model of the surface
Data Source
AI summary
Technologies for projecting a noncontinuous image onto at least a portion of a projection region using a projector of a projection device. The projection device is configured to determine one or more cut-out areas of the projection region. Each cut-out area defines an area within the projection region on which a corresponding portion of the image is not to be projected by the projector of the projection device. The projection device is further configured to update the projection region based on the cut-out area(s) and project, via the projector, the image onto the updated projection region, wherein no portion of the image is projected on cut-out area(s). Other embodiments are described and claimed.