High-Quality Real-Time Rendering Using Subpixel Sampling Reconstruction
- URL: http://arxiv.org/abs/2301.01036v2
- Date: Sun, 25 Jun 2023 16:19:23 GMT
- Title: High-Quality Real-Time Rendering Using Subpixel Sampling Reconstruction
- Authors: Boyu Zhang, Hongliang Yuan, Mingyan Zhu, Ligang Liu, Jue Wang
- Abstract summary: We propose a novel Monte Carlo sampling strategy to accelerate the sampling process and a corresponding denoiser, subpixel sampling reconstruction (SSR)
Our method significantly outperforms previous approaches in denoising quality and reduces overall time costs, enabling real-time rendering capabilities at 2K resolution.
- Score: 20.431360489828975
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Generating high-quality, realistic rendering images for real-time
applications generally requires tracing a few samples-per-pixel (spp) and using
deep learning-based approaches to denoise the resulting low-spp images.
Existing denoising methods have yet to achieve real-time performance at high
resolutions due to the physically-based sampling and network inference time
costs. In this paper, we propose a novel Monte Carlo sampling strategy to
accelerate the sampling process and a corresponding denoiser, subpixel sampling
reconstruction (SSR), to obtain high-quality images. Extensive experiments
demonstrate that our method significantly outperforms previous approaches in
denoising quality and reduces overall time costs, enabling real-time rendering
capabilities at 2K resolution.
Related papers
- Efficient Conditional Diffusion Model with Probability Flow Sampling for Image Super-resolution [35.55094110634178]
We propose an efficient conditional diffusion model with probability flow sampling for image super-resolution.
Our method achieves higher super-resolution quality than existing diffusion-based image super-resolution methods.
arXiv Detail & Related papers (2024-04-16T16:08:59Z) - Accelerating Diffusion Sampling with Optimized Time Steps [69.21208434350567]
Diffusion probabilistic models (DPMs) have shown remarkable performance in high-resolution image synthesis.
Their sampling efficiency is still to be desired due to the typically large number of sampling steps.
Recent advancements in high-order numerical ODE solvers for DPMs have enabled the generation of high-quality images with much fewer sampling steps.
arXiv Detail & Related papers (2024-02-27T10:13:30Z) - RL-based Stateful Neural Adaptive Sampling and Denoising for Real-Time
Path Tracing [1.534667887016089]
MonteCarlo path tracing is a powerful technique for realistic image synthesis but suffers from high levels of noise at low sample counts.
We propose a framework with end-to-end training of a sampling importance network, a latent space encoder network, and a denoiser network.
arXiv Detail & Related papers (2023-10-05T12:39:27Z) - ACDMSR: Accelerated Conditional Diffusion Models for Single Image
Super-Resolution [84.73658185158222]
We propose a diffusion model-based super-resolution method called ACDMSR.
Our method adapts the standard diffusion model to perform super-resolution through a deterministic iterative denoising process.
Our approach generates more visually realistic counterparts for low-resolution images, emphasizing its effectiveness in practical scenarios.
arXiv Detail & Related papers (2023-07-03T06:49:04Z) - CDPMSR: Conditional Diffusion Probabilistic Models for Single Image
Super-Resolution [91.56337748920662]
Diffusion probabilistic models (DPM) have been widely adopted in image-to-image translation.
We propose a simple but non-trivial DPM-based super-resolution post-process framework,i.e., cDPMSR.
Our method surpasses prior attempts on both qualitative and quantitative results.
arXiv Detail & Related papers (2023-02-14T15:13:33Z) - Toward Real-World Super-Resolution via Adaptive Downsampling Models [58.38683820192415]
This study proposes a novel method to simulate an unknown downsampling process without imposing restrictive prior knowledge.
We propose a generalizable low-frequency loss (LFL) in the adversarial training framework to imitate the distribution of target LR images without using any paired examples.
arXiv Detail & Related papers (2021-09-08T06:00:32Z) - Deep Unfolded Recovery of Sub-Nyquist Sampled Ultrasound Image [94.42139459221784]
We propose a reconstruction method from sub-Nyquist samples in the time and spatial domain, that is based on unfolding the ISTA algorithm.
Our method allows reducing the number of array elements, sampling rate, and computational time while ensuring high quality imaging performance.
arXiv Detail & Related papers (2021-03-01T19:19:38Z) - Learning Spatial and Spatio-Temporal Pixel Aggregations for Image and
Video Denoising [104.59305271099967]
We present a pixel aggregation network and learn the pixel sampling and averaging strategies for image denoising.
We develop a pixel aggregation network for video denoising to sample pixels across the spatial-temporal space.
Our method is able to solve the misalignment issues caused by large motion in dynamic scenes.
arXiv Detail & Related papers (2021-01-26T13:00:46Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.