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Nonpinhole Approximations for Interactive Rendering
Nov.-Dec. 2011 (vol. 31 no. 6)
pp. 68-83
ASCII Text
x 
 
C. Wyman, K. Hayward, V. Popescu, P. Rosen, "Nonpinhole Approximations for Interactive Rendering," IEEE Computer Graphics and Applications, vol. 31, no. 6, pp. 68-83, Nov.-Dec., 2011.
 
 
BibTex
x
 
@article{ 10.1109/MCG.2011.32,
author = {C. Wyman and K. Hayward and V. Popescu and P. Rosen},
title = {Nonpinhole Approximations for Interactive Rendering},
journal ={IEEE Computer Graphics and Applications},
volume = {31},
number = {6},
issn = {0272-1716},
year = {2011},
pages = {68-83},
doi = {http://doi.ieeecomputersociety.org/10.1109/MCG.2011.32},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - MGZN
JO - IEEE Computer Graphics and Applications
TI - Nonpinhole Approximations for Interactive Rendering
IS - 6
SN - 0272-1716
SP68
EP83
EPD - 68-83
A1 - C. Wyman,
A1 - K. Hayward,
A1 - V. Popescu,
A1 - P. Rosen,
PY - 2011
KW - rendering (computer graphics)
KW - approximation theory
KW - geometry
KW - interactive systems
KW - reflections
KW - nonpinhole approximations
KW - interactive rendering
KW - scene geometry
KW - interactive 3D graphics applications
KW - perspective projection
KW - orthographic projection
KW - ray-and-depth-image intersection
KW - epipolar geometry constraints
KW - refractions
KW - relief texture mapping
KW - ambient occlusion
KW - Cameras
KW - Geometry
KW - Approximation methods
KW - Rendering (computer graphics)
KW - Image segmentation
KW - graphics and multimedia
KW - nonpinhole camera
KW - single-pole occlusion camera
KW - graph camera
KW - depth image
KW - impostor
KW - epipolar constraints
KW - reflection
KW - refraction
KW - relief texture mapping
KW - ambient occlusion
KW - interactive 3D graphics
KW - computer graphics
VL - 31
JA - IEEE Computer Graphics and Applications
ER -
 
C. Wyman, Univ. of Iowa, Iowa City, IA, USA
V. Popescu, Purdue Univ., West Lafayette, IN, USA
P. Rosen, Univ. of Utah, Salt Lake City, UT, USA
Researchers have used depth images to approximate scene geometry in a variety of interactive 3D graphics applications. Previous researchers constructed images using orthographic or perspective projection, which limits the approximation quality to what's visible along a single view direction or from a single viewpoint. Images constructed with nonpinhole cameras can improve approximation quality at little additional cost, if the camera offers fast projection. For such a camera, the fundamental operation of ray-and-depth-image intersection proceeds efficiently by searching along the 1D projection of the ray onto the image. A proposed method extends epipolar geometry constraints to nonpinhole cameras for two-camera configurations. Researchers have demonstrated nonpinhole depth images' advantages in the context of reflections, refractions, relief texture mapping, and ambient occlusion. The Web extra is a video that shows how nonpinhole depth images provide advantages regarding reflection, refraction, relief texture mapping, and ambient occlusion.

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Index Terms:
rendering (computer graphics),approximation theory,geometry,interactive systems,reflections,nonpinhole approximations,interactive rendering,scene geometry,interactive 3D graphics applications,perspective projection,orthographic projection,ray-and-depth-image intersection,epipolar geometry constraints,refractions,relief texture mapping,ambient occlusion,Cameras,Geometry,Approximation methods,Rendering (computer graphics),Image segmentation,graphics and multimedia,nonpinhole camera,single-pole occlusion camera,graph camera,depth image,impostor,epipolar constraints,reflection,refraction,relief texture mapping,ambient occlusion,interactive 3D graphics,computer graphics
Citation:
C. Wyman, K. Hayward, V. Popescu, P. Rosen, "Nonpinhole Approximations for Interactive Rendering," IEEE Computer Graphics and Applications, vol. 31, no. 6, pp. 68-83, Nov.-Dec. 2011, doi:10.1109/MCG.2011.32
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