Fast contrast adaptive upsampling sharpening algorithm for projection spherical screen
The multi-channel projection spherical screen only samples part of the original rendered image during the fusion process,and the distribution of sampling points is not uniform,which leads to different degrees of decline in sharpness in different regions.Taking this as the starting point,this paper proposes a contrast adaptive fast upsampling sharpening algorithm to improve the display effect.The algorithm includes two stages:adaptive upsampling and adaptive sharpening,and is applied to the post-processing part of the graphics rendering pipeline to quickly perform upsampling and sharpening operations.Through compara-tive experiments,the proposed algorithm can improve the resolution of 3D scene rendering results while ensuring high frame rate and enhance the display effect by sharpening technology,and improve the clarity and detail display of real-time 3D scene in multi-source projection spherical screen display.
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