Anchor-Based AR Object Rendering With Translational Motion Metadata
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Solution Overview
Problem
Existing AR content rendering technologies face challenges in efficiently rendering dynamic 3D media objects with translational motion, leading to large data sizes and redundant bit usage due to the need for extensive bounding boxes, which complicates seamless integration of AR objects into real environments.
Innovation Solution
The method involves converting AR media with implicit translational motion into a format without translational motion within the bounding box, expressing motion as metadata, and employing anchor-based rendering modes to ensure accurate and efficient rendering, including translational and non-translational modes based on user selection or environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If AR media data includes translational motion within the bounding box, then the rendering can represent dynamic movement, but the data size increases and redundant bits are generated
Solution Approach 1:
The patent segments the rendering process into two independent parts: (1) spatial positioning information stored in the bounding box, and (2) translational motion information stored as metadata. This segmentation allows the bounding box to focus solely on spatial representation without carrying redundant motion data, thereby reducing overall data size while maintaining complete rendering capability.
Solution Approach 2:
The patent extracts translational motion information from the bounding box and places it in the metadata field. By taking out the motion data from the spatial representation, the bounding box becomes more efficient and compact, while the metadata separately captures the motion characteristics needed for dynamic rendering.
2Adaptability or versatility
If a large bounding box is used to accommodate translational motion, then dynamic AR objects can be rendered, but redundant data bits are generated
Solution Approach 1:
The patent divides the data structure into functional segments: the bounding box handles only spatial containment with minimal data, while the metadata field handles translational motion with precise data. This segmentation eliminates the need for oversized bounding boxes, reducing redundant bits and improving data efficiency.
Solution Approach 2:
The patent changes the parameter representation by introducing a separate metadata field that explicitly stores translational motion parameters. This parameter change allows the bounding box to use smaller, more efficient parameters for spatial representation while the metadata provides the additional motion information without increasing the bounding box size.
3Adaptability or versatility
If AR media includes translational motion, then dynamic rendering is achieved, but seamless integration into real environments becomes complicated
Solution Approach 1:
The patent segments the rendering data into spatial components (bounding box) and motion components (metadata), which simplifies the integration process. The anchor-based rendering system can independently process spatial positioning and motion information, making it easier to seamlessly integrate dynamic AR objects into real environments without complex data processing.
Solution Approach 2:
The patent introduces an anchor-based rendering system as an intermediary that mediates between the AR media data and the real environment. The anchor system provides a reference framework that simplifies the integration of dynamic objects, acting as a mediator that translates the segmented data into coherent real-world positioning and motion.
Data Source
AI summary
The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). The present disclosure provides a method and apparatus for anchor based rendering modes, related parameters and metadata. The method for performing rendering for an augmented reality (AR) media object in a communication system is provided, the method comprises obtaining metadata including information for determining a rendering mode of the AR media object, the information including first information indicating whether the AR object include a translational motion, receiving, from a server, AR media data including an AR media object, determining a rendering mode for rendering the AR media object based on the metadata including the first information, and rendering the AR media object based on the determined rendering mode.