Lijun LiFollow


This disclosure describes techniques for power efficient screencasting of high resolution content. Per techniques of this disclosure, a mobile device is coupled to a high-resolution display to which the mobile device screencasts content. The mobile device performs low resolution rendering of content. The content is upscaled at the mobile device prior to transmission to the high-resolution display or can be upscaled at the high-resolution display. The upscaling can be performed by a machine learning-based image upscaler that is suitable for real-time processing. Operations such as ray tracing and variable rate shading are performed by the mobile device at a lower resolution than that of the high-resolution display, thereby enabling lower power consumption. Further, adaptive hybrid rendering can be utilized whereby ray tracing is performed only for specific surfaces such as shadows, reflective puddles, and metalwork while other geometric surfaces use traditional rasterization techniques. Capabilities of the high-resolution display can be verified as part of an initial capability negotiation at the time of connection setup. The described upscaling techniques can also be used in other use cases such as video recording, video conference, connecting a smartphone to an auxiliary display in a car, etc.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.