公开(公告)号：US20230206399A1

公开(公告)日：2023-06-29

申请号：US17561865

申请日：2021-12-24

Applicant: Advanced Micro Devices, Inc.

Inventor： YongMei Dong ,  Hui Zhou ,  ZhongFei Dong ,  Tsung-Han Chiang

IPC: G06T5/00 ,  G06T5/20 ,  G06T3/40 ,  G06T1/60

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T3/4053 ,  G06T1/60 ,  G06T2207/20221 ,  G06T2207/20016 ,  G06T2207/10024

Abstract: Systems and techniques provide for low-latency, full-frequency noise filtering of images through the use of an image-scaling-based filtering technique, or “multiscale filtering technique”, that can provide filtering for low, medium, and/or high frequencies for one or more components of an image, such that the different resolution scales at each level of the multiscale filtering technique provides a larger receptive field for a denoising process employed at each level than a conventional denoising framework. This multiscale filtering includes receiving an input image to be filtered and then performing a multiscale filtering process in which an input image is, at different resolution scales, denoised, downscaled, upscaled, and fused with a result of a lower resolution scale, to generate a filtered image. This may include temporarily buffering intermediate image data for some of the resolution scales at a memory using direct memory access (DMA) operations.