computational photography: real time plenoptic … · computational photography with traditional...
TRANSCRIPT
![Page 1: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/1.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Andrew Lumsdaine, Georgi Chunev | Indiana University
Todor Georgiev | Adobe Systems
Computational Photography: Real Time Plenoptic Rendering
![Page 2: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/2.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Who was at the Keynote Yesterday?
2
![Page 3: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/3.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Overview
Plenoptic cameras
Rendering with GPUs
Effects
Choosing focus
Choosing viewpoint (parallax)
Stereo
Choosing depth of field
HDR
Polarization
Super resolution
Demos
Conclusion
3
![Page 4: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/4.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Making (and Recreating) Memories
4
![Page 5: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/5.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
What’s Wrong with this Picture?
5
![Page 6: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/6.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Perspective
![Page 7: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/7.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Film
7
CAPTURE VIEWPROCESS
Color
Exposure
Focus
Color
Exposure
Difficult
to Adjust
![Page 8: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/8.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Along Came Photoshop
8
CAPTURE PROCESS VIEW
Color
Exposure
Focus
Color
Exposure
Color
Exposure
![Page 9: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/9.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
What’s Wrong with This Picture?
![Page 10: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/10.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
What’s Wrong? It’s Only a Picture!
![Page 11: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/11.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Can We Create More than Pictures?
Can we request that Photography renders the
full variety offered by the direct observation of
objects? Is it possible to create a photographic
print in such a manner that it represents the
exterior world framed, in appearance, between
the boundaries of the print, as if those
boundaries were that of a window opened on
reality.
Gabriel Lippmann, 1908.
![Page 12: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/12.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Pixels and Cores
Moore’s Law: Megapixels keep growing
7.2 MP = 8 by 10 at 300dpi
Available on cell phones
60MP sensors available now
Larger available soon (can a use be found?)
Use pixels to capture richer information
about a scene
Computationally process captured data
GPU power also riding Moore’s Law curve
12
![Page 13: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/13.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Infinite Variety (Focusing)
![Page 14: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/14.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Focusing
14
![Page 15: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/15.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Focusing
15
![Page 16: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/16.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Different Views
16
![Page 17: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/17.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Different Views
17
![Page 18: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/18.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Different Views
18
![Page 19: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/19.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Photography
With traditional photography light rays in a scene go through optical
elements and are captured by a sensor
With computational photography, we capture the light rays and apply
optical elements computationally
19
19
CAPTURE PROCES
S
VIEW
Color
Exposure
Focus
Color
Exposure
Focus
3D
Color
Exposure
Focus
![Page 20: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/20.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Real Time Plenoptic Rendering
Capture the information about the intensity of light rays in a scene (the
radiance or plenoptic function), not just a 2D picture
Render images – take pictures – later, computationally
Explore the “full variety”
Requires real-time rendering (made possible by GPU)
Opens new ways of working with photography
Provides new photographic effects
20
![Page 21: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/21.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Taking Pictures
A traditional camera places optical elements into the light rays in a scene
A pixel on the sensor is illuminated by rays from all directions
The sensor records the intensity of the sum of those rays
We lose all of the information about individual rays
21
![Page 22: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/22.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Radiance (Plenoptic Function, Lightfield)
Instead of integrating rays from all directions, capture the rays
themselves (the radiance)
Record all the information about the scene
22
![Page 23: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/23.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Photography – The Basic Idea
Using radicance, we can “take the picture” computationally
Choose and apply optical elements computationally
Render computationally
Explore the “full variety” computationally
23
CAPTURE PROCES
S
VIEW
Color
Exposure
Focus
Color
Exposure
Focus
3D
Color
Exposure
Focus
![Page 24: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/24.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Radiance (and Transformations)
The radiance is a density function over 4D ray space
Each ray is a point in 4D ray space
26
Spatial coordinate
Directional coordinate
2D phase space
(2D diagrams shown because they are easier to draw.)
![Page 25: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/25.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Radiance (and Transformations)
The radiance is a density function over 4D ray space
Effects of optical elements (lenses, free space) are linear transformations
Rendering (taking a picture) is integration over all p at a given q
27
![Page 26: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/26.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Capturing the 4D radiance with a 2D sensor
To capture individual rays, first we have to separate them
At a particular spatial point, we have a set of rays at all directions
If we let those rays travel through a pinhole, they will separate into
distinguishable individual rays
Two pinholes will sample two positions
29
![Page 27: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/27.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
A plenoptic camera
A camera with an array of pinholes will capture an image that represents
the 4D radiance
In practice, one might use a microlens array to capture more light
30
![Page 28: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/28.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
The focused plenoptic camera
With the Adobe camera, we make one important modification
We use the microlenses to create an array of relay cameras to sample
the plenoptic function with higher spatial resolution
Note that image plane can also be behind the sensor (virtual image is captured)
33
![Page 29: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/29.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Rendering: Taking a Computational Picture
To take a picture (render) we integrate over all directions p
35
![Page 30: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/30.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
The Story So Far
A plenoptic camera takes a 2D picture – radiance image (or “flat”)
The pixels are samples of the radiance in the 4D ray space
Optical elements (lenses, space) transform the ray space
We take a picture by rendering (computationally)
We adjust the picture by transforming the ray space (computationally)
36
![Page 31: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/31.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
The Part of the Talk Where we Reveal the Magic
37
![Page 32: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/32.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
First, the Camera
38
![Page 33: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/33.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Plenoptic Image (Flat)
39
![Page 34: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/34.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GPU Programming
Basic alternatives for programming GPU: General purpose (CUDA) or
graphics-based (GLSL)
Open GL Shader Language (GLSL) a natural fit
Texture mapping
![Page 35: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/35.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Rendering with GPU using Open GL
Read in plenoptic radiance image
Create 2D texture object for radiance
Serialize image data to Open GL compatible format
Define the texture to OpenGL
![Page 36: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/36.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Implementation of Rendering
![Page 37: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/37.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Implementation of Rendering
gl_TexCoord[0].st gl_FragColor
![Page 38: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/38.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Implementation of Rendering
Given output pixel coordinate gl_TexCoord[0].st
Find relevant microimage
Find offset within
Center
![Page 39: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/39.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Rendering
![Page 40: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/40.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Choosing View
![Page 41: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/41.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Choosing View
![Page 42: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/42.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Choosing View
![Page 43: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/43.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Rendering
![Page 44: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/44.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Choosing View
![Page 45: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/45.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Choosing View
![Page 46: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/46.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Choosing View
![Page 47: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/47.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Refocusing
What does the sensor capture with different focal planes?
What is this in terms of phase space?
![Page 48: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/48.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Refocusing
We capture radiance r1. How can we compute r2?
Apply translation transform of the radiance and render from transformed r
Very expensive
![Page 49: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/49.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Plenoptic 2.0 Refocusing Principle
Rendering for two different focal planes
Comments?
![Page 50: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/50.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Plenoptic 2.0 Refocusing Principle
A new focal plane can be rendered directly from original radiance
![Page 51: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/51.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Rendering
![Page 52: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/52.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Focusing
![Page 53: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/53.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Focusing
![Page 54: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/54.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
Computational Focusing
![Page 55: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/55.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
To Find Out More
Georgiev, T., Lumsdaine, A., “Focused Plenoptic
Camera and Rendering,” Journal of Electronic
Imaging, Volume 19, Issue 2, 2010
http://www.tgeorgiev.net/GTC2010/
62
![Page 56: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/56.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
![Page 57: Computational Photography: Real Time Plenoptic … · Computational Photography With traditional photography light rays in a scene go through optical ... Computational Refocusing](https://reader030.vdocuments.us/reader030/viewer/2022021610/5b80fcee7f8b9aeb088e75d1/html5/thumbnails/57.jpg)
© 2010 Adobe Systems Incorporated. All Rights Reserved.
GLSL Implementation (Basic Rendering)