Title
AXAA: adaptive approximate anti-aliasing.
Abstract
Post-processing anti-aliasing algorithms are widely used now for real-time rendering because of their simplicity, performance, and suitability for deferred shading. Fast approximate anti-aliasing (FXAA) [Lottes 2009] is the fastest method among them, so many games support FXAA to get anti-aliased images. However, FXAA can easily lose texture details and text sharpness due to its excessive blurring. To alleviate those problems of FXAA, we present adaptive approximate anti-aliasing (AXAA). Our approach adds three contributions to FXAA in order to avoid unnecessary filtering. First, we stop further anti-aliasing processes if the current pixel or its neighbors are judged as pixels on already filtered textures or fonts. Second, we try to maintain thin lines as much as possible in order to avoid blurring fonts and lines. Third, for higher performance, we adaptively set the search range of each pixel according to luma contrast. Our experiments show that AXAA provides significantly better image quality than FXAA, in terms of texture, text, and geometry details. Nevertheless, processing overhead of AXAA is still similar to that of FXAA.
Year
DOI
Venue
2016
10.1145/2945078.2945129
SIGGRAPH Posters
Field
DocType
Citations 
Computer vision,Deferred shading,Computer graphics (images),Computer science,Image quality,Filter (signal processing),Pixel,Artificial intelligence,Rendering (computer graphics),Anti-aliasing
Conference
0
PageRank 
References 
Authors
0.34
1
5
Name
Order
Citations
PageRank
Jae-Ho Nah113614.93
Sunho Ki203.04
Yeong-Kyu Lim3208.39
Jin-Hong Park4225.74
Chulho Shin502.70