GamingGPUs

Intel XeSS to Get Frame Generation: Combines Spatial and Temporal Super Sampling for Better Upscaling?

NVIDIA’s DLSS 3 “Frame Generation” tech has been out for over a year, while AMD’s FSR 3 recently joined the ranks. Intel has yet to launch any frame-generation technology, but papers published at SIGGRAPH Asia 2023 indicate that preparations are underway. Dubbed ExtraSS, Team Blue’s frame generation algorithm will take a different path than AMD/NVIDIA’s existing solutions. While DLSS 3 and FSR 3 leverage frame interpolation (two consecutive frames to generate a third one in between), ExtraSS will utilize extrapolation.

Intel’s Frame Generation technology will combine spatial and temporal upscaling to generate high-resolution images, aided by low-resolution G-buffers and a neural network to refine the output. The upscaling pipeline requires two inputs: low-resolution frames and low-resolution G-buffers.

Joint Temporal and Spatial Super Sampling. Our method combines both spatial and temporal super sampling to generate new frames with high resolution. It requires two different types of inputs: half frames with low resolution rendered images and the other half frames only contain low resolution G-buffers.

Simply using two individual methods on frame generation and super resolution is redundant, since both of them re-use temporal and spatial information in the history. We design lightweight warping modules to unify the different inputs and provide good extrapolated initialization for our joint framework. Then, a neural network is used to generate high resolution images and refine the extrapolated frame, which is more efficient than a simple combination.

The ExtraSS algorithm combines the temporal and spatial inputs to generate an extrapolated image, which is then used by a neural network to produce a high-resolution result and the extrapolated frame. As you can see, the upscaler uses data from a single frame (both spatial and temporal) without needing a second like interpolation does. This reduces latency and performance (and per Intel) and produces a high-quality, temporally stable image.

Areej Syed

Processors, PC gaming, and the past. I have been writing about computer hardware for over seven years with more than 5000 published articles. Started off during engineering college and haven't stopped since. Mass Effect, Dragon Age, Divinity, Torment, Baldur's Gate and so much more... Contact: areejs12@hardwaretimes.com.
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