Real-Time Depth-of-Field Rendering Using Anisotropically Filtered Mipmap Interpolation

Authors:
Sungkil Lee;Gerard Jounghyun Kim;Seungmoon Choi
Affiliations:
Pohang University of Science and Technology (POSTECH), Pohang;Korea University, Seoul;Pohang University of Science and Technology (POSTECH), Pohang
Venue:
IEEE Transactions on Visualization and Computer Graphics
Year:
2009

Citing 0
Cited 6

Image space gathering

Proceedings of the Conference on High Performance Graphics 2009
Depth-of-field rendering with multiview synthesis

ACM SIGGRAPH Asia 2009 papers
Real-time lens blur effects and focus control

ACM SIGGRAPH 2010 papers
Real-time rough refraction via LEAN mapping and Gaussian sum reduction

I3D '12 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Layered depth-of-field rendering using color spreading

Proceedings of the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
Racking focus and tracking focus on live video streams: a stereo solution

The Visual Computer: International Journal of Computer Graphics

Quantified Score

Hi-index	0.00

Visualization

Abstract

This article presents a real-time GPU-based post-filtering method for rendering acceptable depth-of-field effects suited for virtual reality. Blurring is achieved by nonlinearly interpolating mipmap images generated from a pinhole image. Major artifacts common in the post-filtering techniques such as bilinear magnification artifact, intensity leakage, and blurring discontinuity are practically eliminated via magnification with a circular filter, anisotropic mipmapping, and smoothing of blurring degrees. The whole framework is accelerated using GPU programs for constant and scalable real-time performance required for virtual reality. We also compare our method to recent GPU-based methods in terms of image quality and rendering performance.