Projector Marker Differentiation for Precise Image Blending
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Solution Overview
Problem
Existing image projection systems using markers with uniform appearances for different purposes can lead to difficulty in distinguishing markers, impairing convenience and accuracy in image alignment and blending.
Innovation Solution
The use of first and second markers with distinct exterior appearances, along with sub-markers and interpolation markers, to determine and project images with precise blending areas, employing geometric correction to align and project images accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If markers with uniform exterior appearance are used for different purposes, then the device complexity is reduced, but the ease of operation deteriorates due to difficulty in distinguishing markers
Solution Approach 1:
The patent applies local quality by giving different exterior appearances to markers based on their specific functions. First markers have a first exterior appearance for defining image contours, while second markers have a second exterior appearance for defining blend area edges. This localized differentiation allows users to easily distinguish between markers with different purposes without increasing overall system complexity.
2Ease of operation
If multiple types of markers with distinct appearances are introduced, then the ease of operation improves for marker distinction, but the device complexity increases
Solution Approach 1:
The patent segments the marker system into two distinct types: first markers for contour definition and second markers for blend area definition. Each segment serves a specific function with its own exterior appearance characteristics. This segmentation improves operational ease by making marker identification intuitive while maintaining manageable system complexity through clear functional separation.
3Manufacturing precision
If only first markers are used to determine image contour, then the manufacturing precision is sufficient for basic alignment, but the measurement precision deteriorates for accurate blend area determination
Solution Approach 1:
The patent introduces second markers as intermediary elements specifically for defining the edges of blend areas. These second markers are positioned at the boundaries where first images and second images are mixed, providing precise reference points for blend area determination. This intermediary marker system enhances measurement precision for blending operations without compromising the manufacturing precision achieved through first markers.
Data Source
AI summary
An image projection method includes, projecting a plurality of first markers onto a screen, projecting one or more first sub-markers each having an exterior appearance different from an exterior appearance of each of the plurality of first markers onto the screen, determining positions of the plurality of first markers, determining positions of the first sub-markers, determining a shape of a contour of a first image projected on the screen based on the positions of the plurality of first markers, determining a first line and a first edge of a blend area where the first image and a second image different from the first image are mixed with each other based on the positions of the plurality of first markers and the positions of the first sub-markers, and the first line and the first edge forming the contour of the first image, and projecting the first image onto the screen.