VR Sound Source Localization Using Cuboid Object Mapping
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Solution Overview
Problem
Existing acoustic signal processing methods struggle to efficiently localize sound images of complex-shaped objects in virtual reality environments, leading to increased computational demands.
Innovation Solution
Transforming complex-shaped objects into cuboids to determine sound source positions using object coordinates and user coordinates, reducing computational complexity by localizing sound sources based on cuboid dimensions and field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex-shaped objects are directly processed for sound source localization, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent creates a simplified cuboid copy of the complex-shaped object's bounding box. Instead of processing the actual complex geometry, the system uses this cuboid representation to determine sound source positions, maintaining localization accuracy while significantly reducing computational complexity.
Solution Approach 2:
The patent transforms the problem from processing complex geometric parameters to processing simple cuboid parameters (min/max coordinates in x, y, z dimensions). This parameter transformation simplifies the computational model while preserving the essential spatial information needed for sound source localization.
2Measurement precision
If complex-shaped objects are directly processed for sound source localization, then sound image localization accuracy is improved, but productivity decreases
Solution Approach 1:
The system creates a simplified cuboid copy representing the bounding box of the complex object. This copy enables rapid sound source localization without requiring detailed processing of the original complex geometry, thereby improving processing efficiency while maintaining localization accuracy.
Solution Approach 2:
The patent segments the complex object processing into two stages: first creating a simplified cuboid representation, then using this representation for sound source localization. This segmentation allows the system to avoid computationally intensive processing of the full complex geometry while preserving essential spatial information.
3Measurement precision
If complex-shaped objects are directly processed for sound source localization, then measurement precision is improved, but use of energy increases
Solution Approach 1:
The patent uses a simplified cuboid copy of the complex object to perform sound source localization. This approach significantly reduces the computational energy required compared to processing the full complex geometry, while still achieving accurate sound source positioning through the bounding box representation.
Solution Approach 2:
The system changes the parameters from complex geometric descriptions to simple cuboid boundary parameters (min/max coordinates). This parameter simplification reduces the computational energy needed for sound source localization while maintaining the precision required for accurate positioning.
Data Source
AI summary
Provided is an acoustic signal processing device for a spatially extended sound source and a method thereof. The acoustic signal processing device includes a memory configured to store instructions, and a processor electrically connected to the memory and configured to execute the instructions. When the instructions are executed by the processor, the processor performs a plurality of operations, and the plurality of operations includes transforming an object provided as a spatially extended sound source into a cuboid in a virtual reality (VR) space, obtaining coordinates of the cuboid, and determining a position of a sound source of the object based on the coordinates of the cuboid and coordinates of a user in the VR space.