AR Marker Distance Event Triggering
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Solution Overview
Problem
Existing augmented reality technologies lack the ability to effectively trigger specific events in a virtual space based on the distance between a camera and a detected marker, limiting the user's control over the augmented reality experience.
Innovation Solution
An information processing program and system that detects markers using an image pick-up apparatus, calculates the distance between the camera and the marker, and generates virtual images to trigger events in a virtual space, allowing for precise control over the augmented reality experience by superimposing virtual images onto the real-world view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional marker detection technique is used, then marker detection is achieved, but the ability to trigger specific events based on distance is lost
Solution Approach 1:
The patent pre-defines multiple events with associated distance thresholds before execution. When the marker is detected, the system compares the calculated distance against predetermined thresholds to automatically trigger appropriate events, eliminating the need for complex real-time decision-making while enabling versatile event triggering capabilities
Solution Approach 2:
The patent introduces a virtual camera as an intermediary component that simulates the physical camera's perspective in the virtual space. This virtual camera captures images from the virtual viewpoint, enabling the system to trigger events based on distance without requiring complex spatial transformation algorithms, thus reducing overall system complexity
2Ease of operation
If distance-based event triggering is implemented, then user control over augmented reality experience is improved, but measurement precision requirements increase
Solution Approach 1:
The patent transforms the continuous distance measurement into discrete distance thresholds or ranges. Instead of requiring precise continuous distance control, the system defines specific distance zones (e.g., closer than 1 meter, between 1-2 meters) and assigns different events to each zone, thereby reducing the precision requirement while maintaining user control through distance-based interaction
3Illumination intensity
If virtual images are superimposed on real-world view, then visual effects are enhanced, but device complexity increases
Solution Approach 1:
The patent creates a virtual copy of the real-world scene by capturing images through the virtual camera and rendering them as virtual images. These virtual images are then superimposed on the real-world view captured by the physical camera, enhancing visual effects while avoiding the complexity of real-time 3D rendering by using pre-captured and pre-rendered virtual images
Data Source
AI summary
An exemplary embodiment provides an information processing program. The information processing program includes image obtaining instructions, search target detection instructions, distance calculation instructions, event occurrence instructions, virtual image generation instructions, and display control instructions. The search target detection instructions cause a computer to detect a search target from an image of a subject. The event occurrence instructions cause the computer to cause an event to occur in a virtual space in accordance with a distance between an image pick-up apparatus and the search target. The virtual image generation instructions cause the computer to generate a virtual image by shooting the event with a virtual camera. The display control instructions cause a display to display the virtual image such that the virtual image is visually recognized by a user as superimposed on the image of the subject or on the subject seen through a screen of the display.