Interactive Image Projection Accessory for Multi-Touch Surface Interaction
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Solution Overview
Problem
Conventional displays, especially touch displays, face limitations in providing intuitive and interactive control over computing systems, particularly in mobile devices with small display areas, where user input is restricted and color fidelity is compromised due to surface variations.
Innovation Solution
An image generation device accessory that projects a derived version of an input image onto a surface, capturing user interactions and communicating them back to the device, while performing color compensation to enhance image fidelity, using a camera system and processing module to handle input events and adjust image projections accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch displays are incorporated into mobile devices to enable intuitive user interaction, then ease of operation is improved, but the display area and device footprint are reduced
Solution Approach 1:
The patent projects the display from a two-dimensional screen onto a three-dimensional surface (tabletop), allowing users to interact with a larger area while the device remains compact. The projection transforms the limited mobile device display area into an extended interactive surface, resolving the contradiction between ease of operation and display area.
2Area of stationary object
If the display area is made small to reduce device footprint, then device portability is improved, but user input capability and control precision are reduced
Solution Approach 1:
By projecting the display onto a larger surface, the system increases the effective input area while maintaining a small device footprint. The camera system tracks user inputs on this expanded projection with high precision, overcoming the limitation of small physical display area.
Solution Approach 2:
The camera system acts as an intermediary between the small device and the large projection surface. It captures and tracks user inputs on the projected image, providing precise measurement and input detection that would be impossible with the small device screen alone.
3Manufacturing precision
If color compensation is applied to correct surface variations in projected images, then color fidelity is improved, but processing complexity and time are increased
Solution Approach 1:
The system performs self-calibration by capturing an image of a color chart, automatically analyzing the surface color variations, and generating compensation values without requiring manual intervention. This self-service approach improves color fidelity while minimizing processing complexity.
Solution Approach 2:
The color compensation values are calculated and stored in advance during an initial calibration phase. This preliminary action allows the system to quickly apply pre-computed compensation during normal operation, reducing real-time processing complexity while maintaining high color fidelity.
Data Source
AI summary
An accessory facilitating interaction with a projected image at least partially sourced by the image generation device. The accessory receives an input image from a device, and projects at least a derived image of the input image onto a surface on which the accessory sits. For instance, the accessory might project the input image itself, or perhaps some post-processed version of the input image. A camera system captures data representing user interaction with the projected image. Based on this data, an image input event is detected, and then communicated to the device. For instance, if the image generation device were a touch-sensitive device, the device may respond to the user contacting the projected image the same as it would if the user touched the image generation device at the same corresponding location. Embodiments described herein also relate color compensation of a displayed image.