Dissertation/Thesis Abstract

Simulating depth of field using per-pixel linked list buffer
by Liu, Yang, M.S., Purdue University, 2015, 56; 1598036
Abstract (Summary)

In this thesis, I present a method for simulating three characteristics of depth of field image: partial occlusion, bokeh and blur. Retrieving color from occluded surfaces is achieved by constructing a per-pixel linked list buffer, which only requires two render passes. Additionally, per-pixel linked list buffer eliminates the memory overhead of empty pixels in depth layers. Bokeh and blur effect are accomplished by image-space point splatting (Lee 2008). I demonstrate how point splatting can be used to account for the effect of aperture shape and intensity distribution on bokeh. Spherical aberration and chromatic aberration can be approximated using a custom pre-built sprite. Together as a package, this method is capable matching the realism of multi-perspective methods and layered methods.

Indexing (document details)
Advisor: McGraw, Tim
Commitee: Benes, Bedrich, Whittinghill, David M.
School: Purdue University
Department: Computer Graphics Technology
School Location: United States -- Indiana
Source: MAI 55/01M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Computer science
Keywords: Blur, Bokeh, Depth of field, Partial occlusion
Publication Number: 1598036
ISBN: 9781339022567
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