Spatial Audio Head Pose Tracking With Lower Compute Load
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Solution Overview
Problem
Determining a head pose of a user and providing audio based on head pose requires significant memory, time, or computing resources, which can be improved.
Innovation Solution
A system that includes 3D head pose determination and 3D audio modulation, utilizing hardware and software computing resources to determine a user's head pose from camera frames and generate 3D audio based on this pose, using techniques such as neural networks and camera calibration to minimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional head pose determination and audio processing methods are used, then accurate head pose tracking and spatial audio generation are achieved, but significant memory, time, and computing resources are consumed
Solution Approach 1:
The patent segments the head pose determination process into distinct stages: face detection, landmark identification, pose parameter extraction, and audio modulation. By dividing the complex processing into modular components, each stage can be optimized independently to reduce overall computational resource consumption while maintaining accuracy.
Solution Approach 2:
The system implements partial action by processing only the necessary facial landmarks and head pose parameters required for spatial audio, rather than performing complete facial analysis. This selective processing reduces computing resources while maintaining sufficient accuracy for audio modulation purposes.
2Measurement precision
If traditional head pose determination and audio processing methods are used, then accurate head pose tracking and spatial audio generation are achieved, but significant memory and time resources are consumed
Solution Approach 1:
The patent applies preliminary action by pre-detecting facial landmarks and establishing pose parameter relationships before actual head pose tracking begins. This preprocessing creates a framework that accelerates real-time pose determination and audio modulation, reducing processing time during actual operation.
Solution Approach 2:
By segmenting the processing pipeline into discrete, optimized stages, the system can parallelize operations and reduce sequential processing bottlenecks, thereby decreasing overall processing time while maintaining accuracy.
3Measurement precision
If traditional head pose determination and audio processing methods are used, then accurate head pose tracking and spatial audio generation are achieved, but significant memory resources are consumed
Solution Approach 1:
The patent extracts and processes only the essential facial landmarks and head pose parameters needed for spatial audio, rather than storing and processing complete facial images or all possible facial features. This extraction approach significantly reduces memory requirements while maintaining sufficient accuracy for audio modulation.
Solution Approach 2:
The system performs partial processing by focusing only on the subset of facial features that contribute to head pose determination, ignoring redundant information. This selective approach reduces memory consumption while preserving necessary accuracy.
Data Source
AI summary
Apparatuses, systems, and techniques to determine head poses of users and provide audio for the users. In at least one embodiment, a head pose is determined based, at least in part, on camera frame information, and an audio signal is generated, based at least in part, on the determined head pose.