Invention Grant
- Patent Title: Method for data reuse and applications to spatio-temporal supersampling and de-noising
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Application No.: US15452651Application Date: 2017-03-07
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Publication No.: US10116916B2Publication Date: 2018-10-30
- Inventor: Marco Salvi , Anjul Patney , Aaron Eliot Lefohn
- Applicant: NVIDIA Corporation
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA CORPORATION
- Current Assignee: NVIDIA CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Zilka-Kotab, P.C.
- Main IPC: G06T1/60
- IPC: G06T1/60 ; G06T11/00 ; H04N13/122 ; H04N13/15 ; G06T11/40 ; H04N13/106 ; H04N13/00

Abstract:
A method, computer readable medium, and system are disclosed for image processing to reduce aliasing using a temporal anti-aliasing algorithm modified to implement variance clipping. The method includes the step of generating a current frame of image data in a memory. Then, each pixel in the current frame of image data is processed by: sampling a resolved pixel color for a corresponding pixel in a previous frame of image data stored in the memory, adjusting the resolved pixel color based on a statistical distribution of color values for a plurality of samples in the neighborhood of the pixel in the current frame of image data to generate an adjusted pixel color, and blending a color value for the pixel in the current frame of image data with the adjusted pixel color to generate a resolved pixel color for the pixel in the current frame of image data.
Public/Granted literature
- US20170272722A1 METHOD FOR DATA REUSE AND APPLICATIONS TO SPATIO-TEMPORAL SUPERSAMPLING AND DE-NOISING Public/Granted day:2017-09-21
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