Head-Mounted Stereoscopic Imaging Without Helmet Depth Sensors
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Solution Overview
Problem
Conventional virtual reality devices with helmet-mounted depth sensors increase weight, power consumption, and cause discomfort due to continuous rotation for depth sensing, leading to inconvenience and dizziness.
Innovation Solution
A head-mounted display and accessory with separate image capturing devices capture images from different regions of an object, combining high-resolution and depth-of-field information wirelessly to establish stereoscopic images without requiring repeated head movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a depth sensor is installed on the helmet to obtain depth information, then depth sensing capability is improved, but the weight of the helmet is greatly increased
Solution Approach 1:
The depth sensing function is segmented from the helmet and transferred to an external accessory (smartphone or tablet). The helmet retains only the basic display function, while the accessory performs depth sensing and stereoscopic image generation. This segmentation resolves the contradiction by eliminating the weight burden on the helmet while preserving depth sensing capability.
Solution Approach 2:
The depth sensor and related processing components are extracted from the helmet structure and placed in an external accessory. This extraction allows the helmet to remain lightweight while the accessory provides the necessary depth sensing and computational functions for stereoscopic image generation.
2Measurement precision
If a depth sensor is installed on the helmet to obtain depth information, then depth sensing capability is improved, but power consumption and computing power of the helmet are greatly increased
Solution Approach 1:
The computationally intensive depth sensing and stereoscopic image generation tasks are segmented from the helmet and assigned to the accessory's processor. This segmentation reduces the power consumption and computing requirements of the helmet while maintaining full depth sensing functionality through the accessory.
3Measurement precision
If the helmet is continuously rotated to obtain enough depth-of-field information, then stereoscopic image establishment is improved, but convenience of use is reduced and user comfort deteriorates due to dizziness
Solution Approach 1:
The system performs preliminary action by capturing depth-of-field information from multiple angles in advance and storing it in the accessory. During actual use, the pre-captured information is directly utilized without requiring continuous helmet rotation, thereby improving convenience while maintaining stereoscopic image quality.
Solution Approach 2:
Instead of requiring the user to physically rotate the helmet to capture depth information from different angles, the system uses the accessory's image capturing device to copy depth information from multiple perspectives. This copying approach eliminates the need for continuous helmet rotation while still gathering sufficient depth-of-field data for stereoscopic image generation.
Data Source
AI summary
A virtual image display device and a stereoscopic image establishing method are provided. The virtual image display device includes a head-mounted display and an accessory. The head-mounted display performs an image capturing operation on a first region of an object to obtain first image information. The accessory has a first image capturing device for performing an image capturing operation on a second region of the object to obtain second image information. The head-mounted display establishes stereoscopic image information of the object based on the first image information and the second image information.