Wireless VR Video Rotation for Low-Latency Portrait Displays
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Solution Overview
Problem
Existing wireless virtual reality (VR) and augmented reality (AR) systems face challenges such as lag time, tethering issues, high power consumption, and limitations in display quality, which disrupt the immersive experience and are not optimized for real-time interaction.
Innovation Solution
A system and method for converting landscape-oriented video images to portrait orientation in real-time with negligible latency, using pixel shaders and hardware converters, combined with steerable antennae to maintain a line of sight transmission and embed command/data in the video signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to eliminate tethering, then user mobility and immersion are improved, but lag time increases significantly making the system unusable
Solution Approach 1:
The system performs preliminary actions by pre-processing video frames before transmission, including converting to portrait orientation and optimizing compression. The transmitter prepares multiple frames in advance and the receiver buffers and processes them sequentially, ensuring that display-ready frames are ready before needed, thus minimizing perceived lag while maintaining wireless freedom.
2Adaptability or versatility
If standard wireless video standards are used, then compatibility with existing equipment is improved, but video quality and refresh rate are insufficient for VR applications
Solution Approach 1:
The system changes critical video parameters including increasing refresh rate from 60Hz to 90Hz or higher, improving resolution beyond standard 1080p, and adjusting frame compression ratios. These parameter changes enable VR-grade video quality while maintaining compatibility with existing wireless video transmission infrastructure through adaptive modulation and error correction.
3Shape
If image conversion from landscape to portrait is performed after reception, then display orientation is corrected, but processing latency increases
Solution Approach 1:
The image conversion from landscape to portrait orientation is performed as a preliminary action at the transmitter before wireless transmission. The video frames are rotated and reformatted in advance, so that when they are received and displayed, no additional processing time is needed. This eliminates conversion latency from the critical path and enables real-time display.
4Manufacturing precision
If high power transmission is used to maintain signal quality, then display quality is improved, but power consumption increases making battery-powered use impractical
Solution Approach 1:
The system uses periodic transmission bursts synchronized with display refresh cycles rather than continuous high-power transmission. Video frames are transmitted in periodic intervals matching the 90Hz or 120Hz refresh rate, with power amplifier duty cycling that reduces average power consumption while maintaining peak signal quality during active display periods.
Data Source
AI summary
The present invention provides for systems and methods of transmitting and converting a landscape image to a portrait image for use in a virtual reality (VR) and augmented reality (AR) environment at a very high speed with negligible latency thus providing a seamless video feed to enhance the VR or AR environment to meet the demands of VR and AR head mounted displays. The present invention further provides for systems and methods for compositing and communicating video, audio, user data, and commands for VR and AR applications with stationary and moving participants. The present invention overcomes the unmet needs of the art by providing a wireless video processing which includes equipment that has a low power consumption, while providing a reliable and seamless virtual or simulated environment. The present invention further overcomes the unmet need by providing systems and methods to reduce the latency caused by image rotation.