| PhotoTechEDU Day 29: Photographing VR Panoramas |
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Google Tech Talks
October, 17 2007
ABSTRACT
Scott Highton, one of the pioneers of virtual
reality photography, will present an overview
of methods and techniques for photographing
VR panoramas. While VR panoramas have become
common for online tours in the real estate
and travel industries, where low-quality
point-and-shoot technique seems to prevail,
Scott focuses on the higher-end and
higher-quality approaches that yield
memorable and evocative imagery.
Scott's talk will include discussion of the
various capture and post-production
technologies available for panoramic imaging
today, as well as a look behind the scenes at
real-life VR photo shoots
Speaker: Scott Highton
Scott Highton is one of the pioneers of
virtual reality photography. He was the
first independent photographer contracted by
Apple to work with and test QuickTime VR, as
well as an early photographic consultant and
contract photographer during the development
of IPIX's PhotoBubble technology.
Specializing in photography of extreme
locations and environments, he was the first
to use both technologies underwater.
Scott has been a commercial photographer,
documentary cinematographer, and writer for
close to 30 years, and is in the process of
finishing his long-awaited book on Virtual
Reality Photography techniques. He has
lectured at a number of photo industry
events, and produces the Virtu...
Tags : google techtalks techtalk engedu talk talks googletechtalks education |
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Affichage : 6396
Durée : 4422 s |
| PhotoTechEDU Day 8: Diffraction and Interference in Imaging |
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Google Tech Talks
March 14, 2007
ABSTRACT
Photographic Technology Day 8: This session
addresses effects of the wave nature of
light. This approach will allow us to talk
about the phenomena of interference as well
as diffraction. The understanding of the
notion of diffraction will be used to
determine the Rayleigh criteria and finally
the resolving power of an optical system. In
the second part of the lecture, we will study
gratings using the wave approach. An example
of an amateur spectroscope for astronomy
using a reflective grating will be shown.
Credits: Speaker:Rom Clement
Tags : google howto phototechedu day diffraction |
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Affichage : 2100
Durée : 3286 s |
| PhotoTechEDU Day 30: Imaging optics for the next decade |
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Google Tech Talks
November, 7 2007
Digital cameras in their many forms will
continue to be one of the
primary drivers towards new technologies in
optics as well as
improvements of classical technologies. This
has been well illustrated
in the past 5-10 years which has seen, for
example, the development of
compression molded glass aspheric lenses for
improved performance and
packaging. The incorporation of injection
molded plastic lenses and
possibly hybrid refractive/diffractive
surfaces will grow.
Furthermore, as the trend continues towards
smaller pixels as well as
more pixels in a given sensor, the imaging
optics will be further
driven towards higher image quality. Zoom
lenses will increase in
their zoom range, yet there will be a
continuing emphasis towards
smaller and smaller packaging. The optics and
their associated
mechanics will need to be more robust with
respect to stray light such
as flare, glare, ghost images, and other
undesirable image anomalies.
And our optics must be more robust with
respect to environmental
effects such as thermal soaks and gradients.
And with all of the
above, customers will want lower cost too. It
is going to be a fun
ride over the next 5-10 years so fasten your
seat belt and hold on
real tight to the safety bar!
Speaker: Robert E. Fischer, CEO OPTICS 1,
Inc. Westlake Village, CA
Bob Fisher is CEO of Optics 1, a past
president of the SPIE, and a
winner of that society's highest award, the
Gold Medal for outstanding
engineering or scientific accomplishments in
optics andelectro-optics.
Mr. Fischer's technical interests are in
optical system design and
engineering, in particular lens design. He
is also interested in
optical component and system manufacturing,
assembly, and testing.
His interests extend from the deep UV through
the visible and on to
the thermal infrared. He is known for his
tireless efforts to advance
optical science, engineering and scholarship.
He served as a book
editor of the McGraw-Hill Series on Optical
and Electro-Optical
Engineering, and as executive editor of OE
Reports, bringing timely
and practical information to professionals in
the field.
Tags : google techtalks techtalk engedu talk talks googletechtalks education |
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Affichage : 4061
Durée : 3288 s |
| PhotoTechEDU Day 4: Contrast, MTF, Flare, and Noise |
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Google Tech Talks
February 14, 2007
ABSTRACT
Photographic Technology Day 4
Resolution isn't Everything: Contrast MTF,
Flare, and Noise
Most consumers know that more megapixels is
better. But why does a 6MP DSLR take nicer
pictures than a 10MP point-and-shoot? This
talk will follow light from the surface to
the sensor, exploring some of the things that
degrade images along the way. Credits:
Speaker:Iain McClatchie
Tags : google howto phototechedu day contrast mtf |
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Affichage : 893
Durée : 3592 s |
| PhotoTechEDU Day 6: Digital Camera Image Processing... |
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Google Tech Talks
February 28, 2007
ABSTRACT
Photographic Technology EDU Day 6: In this
session we examine the steps that a digital
camera goes through to take raw data from an
image sensor and make a photograph out of it.
There are more steps than you might imagine,
arranged in what is usually termed a
pipeline, and is sometimes implemented on
pipelined hardware, to get to a pleasing
photographic rendering of the scene.
Credits: Speaker:Richard Lyon
Tags : google howto phototechedu day digital camera |
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Affichage : 2161
Durée : 3476 s |
| PhotoTechEDU Day 5: Silicon Image Sensors |
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Google Tech Talks
February 21, 2007
ABSTRACT
Photographic Technology Day 5: In this
session we examine how digital cameras
capture images via the interaction of light
with silicon in CCD and CMOS image sensors,
including sampling and aliasing effects,
noise effects, etc. Credits: Speaker:Dick
Lyon
Tags : google howto phototechedu day silicon image |
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Affichage : 1187
Durée : 3619 s |
| PhotoTechEDU Day 18: Non-destructive, Selective, Editing... |
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Google Tech Talks
May 16, 2007
ABSTRACT
For photo editing tools there is a lot of
buzz about non-destructive or parametric
editing. While this is quite standard for
todays RAW converters it is not sufficient
for a more refined imaging workflow. The talk
will demonstrate the need for a
Non-destructive, Selective, Non-linear and
Non-modal editing workflow.
# useful properties of light and image
formation
# theory and techniques of photographic
optics and image capture
# theory of colorimetry and techniques of
color reproduction
# where and how photography is being used in
Google products and projects
# what tools exist inside Google for
photographic image storage, processing, etc.
# and lots...
Tags : google howto phototechedu day non destructive |
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Affichage : 588
Durée : 3371 s |
| PhotoTechEDU Day 31 - Color Balance: Babies, Rugs & Sunsets |
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Google Tech Talks
December, 12 2007
Achieving pleasing color balance is one of
the most important and
difficult problems in photographic systems;
if the color balance is
off, other image quality attributes drop in
important and the result
is unacceptable. In this talk I will discuss
the differences between
color balance and white balance for both
photographic and machine
vision applications and I will outline the
literature of the subject.
I will explain some of the more basic and
some of the more advanced
methods and relate these to complexity and
system calibration issues.
I will give several examples that show how
some methods can fail and
why some images can be extremely difficult. I
will touch on the
relationship between color balance and color
perception and how this
differentiates photographic systems from
machine vision systems.
The goal of PhotoTechEDU is to have a
Photographic Technology short course at
Google. The course will teach Google
engineers:
useful properties of light and image
formation
theory and techniques of photographic optics
and image capture
theory of colorimetry and techniques of
color reproduction
where and how photography is being used in
Google products and projects
what tools exist inside Google for
photographic image storage, processing, etc.
and lots more...
The course will be serialized, meeting once a
week for one hour, for at least 12 weeks,
with probable extension as topics of interest
are identified. Homework problems and
projects will be suggested at various
meetings, but they are completely optional.
No formal class signup is necessary. You can
find details on this wiki page:
http://wiki.corp.google.com/twiki/bin/view/Ma
in/PhotoTechEDU
Speaker: Paul Hubel
Dr. Paul M. Hubel has been working as Chief
Image Scientist at Foveon, Inc. since 2002.
His work includes the design of image
processing algorithms and sensor
architectures for high, middle, and low end
cameras. Before joining Foveon, Dr. Hubel
worked for ten years as a Principal Project
Scientist at Hewlett-Packard Laboratories
working on color algorithms for digital
cameras, photofinishing, scanners, copiers,
and printers.
Dr. Hubel received his B.Sc. in Optics from
The University of Rochester in 1986, and his
D.Phil. from Oxford University in 1990. His
D.Phil thesis is titled "Colour Reflection
Holography". As a graduate student, Dr. Hubel
worked part-time at the Rowland Institute for
Science under Dr. E.H. Land and later as a
Post Doctoral Fellow at the MIT-Media
Laboratory. Dr. Hubel has published over 30
technical papers, book chapters, and authored
25 patents. Dr. Hubel is a member of IS&T and
SPIE, and has served as the technical and
general chair of the IS&T/SID Color Imaging
Conference.
Tags : google techtalks techtalk engedu talk talks googletechtalks education |
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Affichage : 3109
Durée : 3552 s |
| PhotoTechEDU Day 25: Open-source-based high-resolution... |
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Google Tech Talks
August 10, 2007
ABSTRACT
Andrey will explain the designs and
applications of Elphel, Inc. intelligent,
network-enabled cameras based on open source
hardware and software. Google currently uses
Elphel cameras for book scanning and for
capturing street imagery in Google Maps.
Andrey hopes Elphel's newest modular cameras,
the Model 353 camera and the Model 363
camera, will attract software engineers and
FPGA hardware engineers interested in
exploring high-definition videography and
other innovative applications. # useful
properties of light and image formation
# theory and techniques of photographic
optics and image capture
# theory of colorimetry and techniques of
color...
Tags : google howto phototechedu day open source |
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Affichage : 832
Durée : 2612 s |
| PhotoTechEDU Day 3: Ray Tracing, Lenses, and Mirrors |
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Google Tech Talks
January 31, 2007
ABSTRACT
Photographic Technology Day 3: Ray Tracing,
Lenses, and Mirrors
In this lecture, we will study the principles
of ray tracing for simple optical components:
thin spherical lenses and spherical mirrors.
The notion of real/virtual object and
real/virtual images will be highlighted as
well as the computation of the position and
magnification the image. The case of thick
lenses will also be mentioned including the
notion of nodal and cardinal points.
Credits: Speaker:Rom Clement
Tags : google howto phototechedu day ray tracing |
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Affichage : 1968
Durée : 3451 s |
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