VR Headset Exposure Timing for Multi-Device Gesture Recognition
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Solution Overview
Problem
The use of multiple infrared lamps for light filling in virtual reality devices causes overexposure of images, negatively impacting gesture recognition in virtual reality devices.
Innovation Solution
A multi-device photographing control method where a first VR head-mounted display device determines its photographing moment and sends exposure indication information to other VR head-mounted devices to coordinate different exposure times, preventing simultaneous light filling and overexposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple infrared lamps are used for light filling in virtual reality devices, then the illumination intensity is improved, but the images become overexposed
Solution Approach 1:
The patent implements periodic action by making multiple VR devices perform light filling and exposure at different time intervals rather than simultaneously. Each device is assigned a specific time window for infrared lamp activation and camera exposure, creating a periodic sequence that ensures adequate illumination while preventing overexposure. This temporal segmentation allows multiple devices to share the same physical space without interfering with each other's imaging quality.
2Reliability
If multiple VR devices perform light filling simultaneously, then the gesture recognition capability is improved, but the image quality deteriorates due to overexposure
Solution Approach 1:
The system uses periodic action to schedule light filling and exposure operations for multiple VR devices in sequential time windows. Each device receives adequate infrared illumination during its designated period, ensuring reliable gesture recognition, while the sequential timing prevents simultaneous exposure that would cause image overexposure and quality degradation.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the timing parameters of light filling and exposure for each VR device. By changing the temporal parameters (start time, duration, interval) of infrared lamp activation and camera exposure, the system optimizes both gesture recognition reliability and image quality, preventing overexposure while maintaining adequate illumination for each device.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents image overexposure and improves gesture recognition by ensuring each VR head-mounted display device performs exposure and light filling at different moments, enhancing image quality and recognition accuracy.
Implementation Method 1
an infrared lamp is mainly used to fill light to facilitate the virtual reality device to photograph clear images
Data Source
AI summary
The present disclosure relates to a multi-device photographing control method and a virtual reality (VR) head-mounted display device, and relates to the technical field of virtual devices. The method is applied to a first VR head-mounted display device, and the first VR head-mounted display device is configured to establish a communication connection with at least one second VR head-mounted display device. The method comprises: determining a photographing moment of the first VR head-mounted display device; determining exposure indication information according to the photographing moment of the first VR head-mounted display device; and sending the exposure indication information to the at least one second VR head-mounted display device. The embodiments of the present disclosure are used for solving the problem of image overexposure caused by simultaneous exposure by a plurality of VR head-mounted display devices.