Sensor Bar Camera Layout for Near and Far XR Depth Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional XR systems face challenges in providing simultaneous navigation and range detection capabilities due to fixed focal distances and field of view settings, leading to user discomfort and inconsistent depth perception, particularly when switching between near and far objects.
Innovation Solution
A head-mounted device (HMD) equipped with six cameras, including two stereoscopic pairs of low light and thermal cameras, positioned to match the user's interpupillary distance, allowing dynamic switching between near-field navigation and far-field range detection, enhancing image fusion and depth perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed focal distance and field of view settings are used in conventional XR systems, then the system structure is simple, but navigation and range detection capabilities cannot be provided simultaneously, leading to user discomfort and inconsistent depth perception
Solution Approach 1:
The patent implements dynamic switching between different camera pairs (first stereoscopic pair for navigation, second stereoscopic pair for range detection) based on operational mode. The system transitions from static fixed settings to dynamic adaptive configuration, allowing the same hardware to serve multiple functions by reconfiguring which cameras are active and their respective parameters.
Solution Approach 2:
The XR system is designed to perform multiple functions using the same hardware platform. By incorporating both first and second stereoscopic camera pairs with different focal distances and field of views, the system achieves both navigation and range detection capabilities, making the device universal rather than specialized for a single task.
2Adaptability or versatility
If a single stereoscopic camera pair is used, then the device complexity is low, but the system cannot provide both near-field navigation and far-field range detection simultaneously
Solution Approach 1:
The camera system is segmented into distinct functional units: a first stereoscopic camera pair dedicated to near-field navigation with specific focal distance and field of view, and a second stereoscopic camera pair dedicated to far-field range detection with different parameters. This segmentation allows each pair to be optimized for its specific function while working together to provide comprehensive coverage.
Solution Approach 2:
The system extends the functional dimension by adding a second stereoscopic camera pair that operates at a different focal distance and field of view. This creates a multi-dimensional capture capability where the first pair handles near-field tasks and the second pair handles far-field tasks, effectively adding another layer to the system's operational spectrum.
3Ease of operation
If cameras are positioned with separation distance matching average IPD, then ease of operation is improved for standard users, but measurement precision may be reduced for users with atypical interpupillary distances
Solution Approach 1:
The system allows dynamic adjustment of the separation distance parameter between camera pairs. Instead of being fixed at the average IPD, the parameter can be changed to match individual user measurements, thereby maintaining both ease of operation for standard users and measurement precision for users with atypical IPDs through configurable adaptation.
Data Source
AI summary
An HMD is disclosed. The HMD includes a first pair of stereoscopic cameras of a first modality. The first pair of stereoscopic cameras includes a first camera and a second camera. The HMD includes a second pair of stereoscopic cameras of a second modality. The second pair of stereoscopic cameras includes a third camera and a fourth camera. The HMD includes a fifth camera of the first modality and a sixth camera of the second modality. A first separation distance between the first camera and the second camera is set to a user's IPD. A second separation distance between the third camera and the fourth camera is set to the user's IPD. The fifth camera and the sixth camera are positioned on the HMD between the first camera and the second camera and between the third camera and the fourth camera.