Method and apparatus for optimizing the presentation of audio

Method and apparatus for optimizing the presentation of audio
US007333154B2
(12) United States Patent
(10) Patent N0.:
(45) Date of Patent:
Dean et a1.
(54)
(56)
METHOD AND APPARATUS FOR
OPTIMIZING THE PRESENTATION OF
AUDIO VISUAL WORKS
Schnuelle, Los Angeles, CA (US)
(73) Assignee: THX, Ltd., San Rafael, CA (US)
Notice:
6,392,710 B1 *
5/2002
Gonsalves et a1. ........ .. 348/578
6,400,411 B1 *
6/2002
Bayes et a1. .............. .. 348/572
(57)
A technique for managing the production, post-production
and distribution of audio-visual projects permits accurate
management of production values and thereby alloWs accu
rate and measurable reproduction and control. Test signal
Continuation of application No. 09/714,599, ?led on
Nov. 15, 2000, noW Pat. No. 6,771,323.
(60) Provisional application No. 60/227,672, ?led on Aug.
data is used to assist the operator in insuring the levels are
set to the intended display characteristics in the event that
factors such as creative lighting or applied effects affect the
desired look of the scene. The test signal data may encom
24, 2000, provisional application No. 60/188,969,
?led on Mar. 10, 2000, provisional application No.
60/165,740, ?led on Nov. 15, 1999.
Int. Cl.
H04N 5/222
H04N 17/00
ABSTRACT
Mar. 17, 2005
Related US. Application Data
(52)
(58)
Stoker ...................... .. 348/180
Grandin et a1. ........... .. 725/146
Crockett & Crockett
Prior Publication Data
US 2005/0057691 A1
(51)
5/1998
4/2002
Primary ExamineriSherrie Hsia
(74) Attorney, Agent, or FirmiPaul J. Backofen, Esq.;
Jun. 15, 2004
(65)
(63)
5,748,229 A *
6,378,132 B1 *
* cited by examiner
(21) Appl. N0.: 10/868,754
Filed:
References Cited
Subject to any disclaimer, the term of this
patent is extended or adjusted under 35
U.S.C. 154(b) by 619 days.
(22)
Feb. 19, 2008
U. S. PATENT DOCUMENTS
(75) Inventors: Rick Dean, Bell?oWer, CA (US); Dave
(*)
US 7,333,154 B2
pass elements that determine resolution, White level, black
level, grey steps, frequency response and linearity as Well as
sound parameters. Chroma channels may exhibit similar
(2006.01)
(2006.01)
US. Cl. ..................... ..
348/722; 348/181; 348/180
348/722,
signals including a bar pattern that can be used to insure the
Field of Classi?cation Search .............. ..
best colorimetry is maintained. Standard signals may also
improve compositing and cross media transfers for matching
348/180, 181, 187, 188, 189, 460; 375/224;
324/612, 158.1, 76.11; 455/226.1, 67.11,
455/67.14, 3.06; 702/85,108, 117; 725/114*116,
production values.
725/144*146, 138
See application ?le for complete search history.
9 Claims, 15 Drawing Sheets
8.7
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FINAL CONTENT
PRODUCTION
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U.S. Patent
Feb. 19, 2008
Sheet 2 0f 15
US 7,333,154 B2
SCENE
COMPUTER
FIG. 3
U.S. Patent
Feb. 19, 2008
OH
Sheet 4 0f 15
US 7,333,154 B2
U.S. Patent
Feb. 19, 2008
Sheet 5 0f 15
US 7,333,154 B2
LANGUAGE &
AUDIO SETUP
ENGLISH DOLBY SURROUND
ENGLISH 5.1 SURROUND
FRENCH DOLBY SURROUND
LUCAS FlLM
CAPT/0N8 AND SUBTITLES
ENGLISH
SPANISH
MA IN MENU
FIG. 6
52
LUCASFILM
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VIDEO & AUDIO SETUP
To optimize your viewing experience of Fight Club, this section
of the DVD will help you set up your television and audio system
Choose a set of tests from below and follow the instructions.
When you are ?nished with each video test pattern/audio
test signal, chapter skip forward ( »|) to the next test signal
For more details about using these test signals, please visit
the THX website a http://www.thx.com
START TESTS
I
VIDEO
/P 56
AUDIO
MAIN MENU
FIG. 7
U.S. Patent
Feb. 19, 2008
Sheet 6 of 15
US 7,333,154 B2
ASPECTRATIO SETUP
using 16:9 2:35 circle
If you see a perfect circle while playing back this test,
your DVD player is correctly set to display this 16:9
anamorphic movie
If you have a 4:3 television and you see a tall, thin oval, you must
stop the DVD player and change the ASPECT RATIO setting to 4:3
It you have a 16:9 television, your display should be set to wide.
If you see a ?at oval, you must stop the DVD player and change
the ASPECT RATIO setting to 16:9. You should see the entire circle;
it not, change the vertical sizing of the display.
Hit "PLAY TEST" to start test pattern. Chapter skip forward when ?nished.
For more details about using these test signals, please visit the THX
website at http:llwww.thx.oom
I:
MENU]
[ PLAY TEST 1
FIG. 8
E MAIN MENU 1
U.S. Patent
Feb. 19, 2008
Sheet 7 0f 15
US 7,333,154 B2
TINT& COLOR SETUP
using SMPTE color bars
Adjust the Tint setting until the blue squares at the bottom
left-hand corner of the screen are a similar shade of blue
Next, adjust the Color setting until the Red rectangle is bright red,
but not blooming or bleeding.
You can recheck Contrast/Picture and Brightness with the white
square and black bars at the bottom of the screen, respectively.
If you have a blue ?lter, use this test. To receive a blue ?lter from THX,
visit the THX website at the address below. Instructions on the use of
the blue ?lter can also be obtained from the THX website.
Hit "PLAY TEST" to start test pattern. Chapter skip forward when ?nished.
For more details about using these test signals, please visit the THX
website at http:I/www.thx.com
[W MENU]
I: PLAY TEST 1
FIG. .9
E MAIN MENU 1
U.S. Patent
Feb. 19, 2008
Sheet 8 0f 15
US 7,333,154 B2
SPEAKER PHASE
using pink noise
&
Hit "PLAY TEST’ to start test pattern. Chapter skip forward when ?nished.
For more details about using these test signalsr please visit the THX
website at http:llwww.thx.com
I: W MENU ]
PLAY TEST
_
_
_
_
[ MAIN MENU 1
_
_
_
_
_
_
_
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U.S. Patent
Feb. 19, 2008
Sheet 9 0f 15
US 7,333,154 B2
68
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IN-PHASE
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HX MENU
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If out-of-phase, reverse speaker
MAIN MENU
Q wires on speaker with Red Box |_——_|
FIG. 11
U.S. Patent
Feb. 19, 2008
Sheet 10 0f 15
US 7,333,154 B2
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FIG. 12
U.S. Patent
Feb. 19, 2008
Sheet 12 0f 15
US 7,333,154 B2
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US 7,333,154 B2
1
2
METHOD AND APPARATUS FOR
OPTIMIZING THE PRESENTATION OF
AUDIO VISUAL WORKS
may also improve compositing and cross media transfers
Without extraordinary efforts to match production values.
In another aspect of the present invention, a test signal
may be inserted on an active but unused line of video to track
and monitor the video image’s signal level and quality
throughout the mastering and replication process. The image
quality is therefore measurable by referencing this signal.
RELATED APPLICATIONS
This application is a continuation of US. Utility applica
This same model can be applied to audio and Digital
Cinema.
When capturing an image With a digital cinema camera,
test signal data can be inserted and recorded along With the
active picture and sound. This test signal data may serve as
a reference for the sound and picture quality and associated
tion Ser. No. 09/714,599, ?led Nov. 15, 2000 now US. Pat.
6,771,323, Which claims priority from noW abandoned US.
provisional patent application Ser. No. 60/ 165,740 ?led Nov.
15, 1999, and US. provisional patent application Ser. No.
60/ 188,969 ?led Mar. 10, 2000, and US. provisional patent
application Ser. No. 60/227,672 ?led Aug. 24, 2000.
technical parameters. The post production process may
BACKGROUND OF THE INVENTION
involve such things as “timing” or changes to color balance
and component signal levels in order to produce ?nely tuned
images and sound. At any time throughout the production
1. Field of the Invention
This invention relates to reference information included in
captured digital signals, and more speci?cally to a digital
reference information providing a baseline for determining
and measuring audio and video signal changes in the post
and post-production processes, one can return a scene to the
original image capture levels by referencing the test signal
20
production and display processes.
2. Description of the Prior Art
The move to capture images electronically for cinema
data and adjusting levels to their original state. For scenes
used in special effects, the test signal data can be used to
control levels and maintain continuity betWeen like scenes
and composited images. Certain automated functions could
be implemented in conjunction With the test signal data in
productions closely resemble the evolution of television
production moving from ?lm to video based capture tech
nologies. Tools developed for both ?lm and video provided
the post production processes the ability to restore the
original look of the scene by using various tools and
25
procedures. For the ?lm production, a color chart Was
photographed at the head of each scene to assist in color
30
much the same Way as VIRS Works in consumer television
today to control signal levels betWeen the origination site
and the local broadcast station.
Applications of this test signal data in the creation of the
digital master may include:
Creation of the High De?nition or Super High De?nition
Digital Master;
balance during the ?lm to tape transfer. Video productions
From Digital source to Digital
may use a color bar reference at the head of the program
From Digital source to Film
From Film source to Digital
material to assist in proper set-up of playback levels. Both
systems may Work for the intended media.
35
Unlike ?lm, an electronic camera offers the ability to see
the result immediately on a picture monitor. Observing
recent productions, set lighting and aperture Were adjusted
based on the image that Was displayed on a Waveform and
picture monitor near the camera. Upon being satis?ed that
the scene Was “correct”, the production Would proceed and
the image recorded on a High De?nition Tape recorder.
What may be important to the director and cinematographer
40
analog media, digital media and optical media. The test
signals may be used to align the home entertainment system
of a user to reproduce the intended theatrical performance.
In another still further aspect of the present invention, test
as far as subtle detail in the shadoWs and lace curtains in a
WindoW may be overlooked in later steps of postproduction.
Rarely Will both detail in shadoWs, and detail in backlit
It should be possible to integrate the test signal data
generator into the recording device on the set, therefore
eliminating the need for a separate piece of equipment to
generate the test signal data.
In a still further aspect of the present invention, test
signals may be added to entertainment distributions such as
45
signal data may be added to entertainment venue distribu
tions using analog media, digital media and transmissions,
WindoWs survive together, either one or the other are nor
and optical media and transmissions hoWever distributed.
mally clipped during the post process. But What is needed is
test signal data that may reside along With the active picture
The test signal data may be used to align the venue enter
and or sound data that may identify benchmark image or
sound characteristics.
tainment system to reproduce the intended performance and
50
one or more feedback channels may provide the distributor
or creator information or control of the characteristics of a
performance.
SUMMARY OF THE INVENTION
The present invention may provide a technique for man
55
aging the production, post-production and distribution of
audio-visual projects to permit accurate management of
production values to enable accurate and measurable con
These and other features and advantages of this invention
Will become further apparent from the detailed description
and accompanying ?gures that folloW. In the ?gures and
description, numerals indicate the various features of the
invention, like numerals referring to like features throughout
both the draWings and the description.
trol. Test signal data may assist the operator in insuring the
levels are indeed set to the intended look in the event of any
creative lighting applied or effects used that Would create an
unnatural look to the scene. The test signal data may
60
FIG. 1 is a block diagram of a test signal system according
to the present invention.
FIG. 2 is a detail block diagram of a test signal system
encompass elements that determine resolution, White level,
Black level, Grey steps, Frequency response and linearity as
Well as sound parameters. Chroma channels may exhibit
similar signals including a bar pattern that can be used to
insure the best colorimetry is maintained. Standard signals
BRIEF DESCRIPTION OF THE DRAWINGS
65
input according to the present invention.
FIG. 3 is graph of a test signal according to the present
invention.
US 7,333,154 B2
4
3
Referring to FIG. 2, a digital cinema input system 10A
according to the present invention may include digital image
capture device 12 and test signal 14. Test signal 14 may be
added to conventional video signal 16 by signal generator 18
included Within image capture device 12. Test signal 14 may
enable optimiZation of image input 22. Because test signal
14 is added to video signal 16 at or immediately after image
FIG. 4 is a detail block diagram of a test signal system
output according to the present invention.
FIG. 5 is a block diagram of a home entertainment system
according to the present invention.
FIG. 6 is a test election menu according to the present
invention.
FIG. 7 is a test selection menu according to the present
capture point 24, subsequent changes to original image
invention.
FIG. 8 is an aspect test WindoW according to the present
invention.
FIG. 9 is a tint and color test WindoW according to the
signal may be quanti?ed and or eliminated. Signal generator
18 may also be a stand alone device or it may also be
included in a conventional device along data stream 20. Test
signal 14 may also include information on image capture
present invention.
device 12 such as characteristics of optics 12A or video chip
12B or of image softWare 12C.
Referring noW to FIG. 3, test signal 14 may be included
FIG. 10 is a speaker phase test WindoW according to the
present invention.
FIG. 11 is a speaker phase diagnostic WindoW according
in vertical blanking elements 30 of composite signal 32.
to the present invention.
FIG. 12 is a second speaker phase diagnostic WindoW
according to the present invention.
FIG. 13 is a block diagram of a currently preferred
embodiment of the present invention.
FIG. 14 is a sample graph of image density to exposure.
FIG. 15 is a block diagram of the present invention
shoWing the steps from conventional image storage to DIME
?les and back to conventional image storage.
FIG. 16 is a block diagram of an alternate embodiment of
Signal 32 may be an NTSC or HDTV or similar signal. In
another aspect of the present invention, test signal 14 may
use available bandWidth 34 of video signal 36. Test signal 14
20
image ?le.
FIG. 4 depicts a preferred embodiment of the present
invention, comprising a digital image projector 80 project
ing projected images 81 onto screen 83 to be re?ected as
25
the present invention.
FIG. 17 is a block diagram of the steps of the present
invention shoWing the process of simulation of a target
image format.
30
FIG. 18 is a block diagram of the output and simulation
Furthermore, an analog to digital converter is required to
digitiZe the feedback sensor 92 (see discussion beloW)
FIG. 19 is a block diagram of the process steps of the
present invention.
output voltage for analysis. Image data signal 99 may
35
DETAILED DESCRIPTION OF THE
Referring noW to FIG. 1, a digital cinema system 10
40
in post-production 17 or it may be included With test data 15
Which may be produced by image capture device 12 or stand
45
content production 17A of ?nal content 28. Images such as
50
distribution 29. Distribution channel 29A may be directed to
provide ?nal content 28 through ?lm 29F, magnetic media
29M, or optical media 29P. Additionally, distribution chan
55
and/or ?nancial information. The metadata may also include
information identifying prede?ned characteristics, such as a
particular color space, to properly display image data 91 so
as to generate displayed images 82 as originally intended by
the creator of the images (e.g. ?lm director).
Controller 98 receives image data signal 99 and extracts
and separates image data 91 and metadata 93. Projector 80
may further include image adjuster 94 to adjust image data
91 in accordance With metadata 93. Image adjuster 94 may
be comprised of a softWare, hardWare, or combination
softWare/hardWare digital matrix to manipulate the image
60
screen 83. Sound component 28S of ?nal content 28 may be
provided to sound netWork 84 that may include individual
sound reproduction devices 86. Distribution outlet 90 may
also include feedback sensor 92 to monitor displayed images
82 and or reproduced sound 88.
as actually presented to a vieWer can be compared.
The metadata may include further information, such as
being displayed, the source of the images, the intended
receiver of the images, and payment or other transactional
image input 22 may be manipulated by post-production 17
nel 29B may be directed to provide ?nal content 28 through
satellite link 29S, broadcast link 29L, or cable link 29C.
Distribution channel 29B may also provides a tWo-Way link
29T through each distribution channel providing a feedback
channel for feedback signal 87.
Final content 28 shoWn in FIG. 1 may be provided to
distribution outlet 90 through tWo-Way link 29T. Final
content 28 may be provided to projector 80 for display on
the proper display parameters for the image data. Metadata
93 may be combined With image data 91 to form image data
signal 99 during the recording process, or later during the
mastering process or even prior to transmitting the image
data to projector 80 for display. The purpose of the metadata
is to provide a baseline reference against Which images 82
information uniquely identifying the images (e.g. movie)
in post-production 17 to alloW greater control during ?nal
using test data 15 to provide a base line for original image
characteristics 22A. Final content 28 may be distributed by
include image data 91 and metadata 93. Metadata 93 may
include information regarding the image data, including
color, luminance, and brightness information, that de?nes
PREFERRED EMBODIMENT(S)
alone test data generator 26. Image data 13 and test data 15
comprise enhanced data 19. Enhanced data 19 may be used
images 82 to be vieWed by a vieWer (not shoWn). Screen 83
may be any type of screen knoWn in the art, including the
type used in commercial movie theaters, conference halls, or
home theaters.
Projector 80 may include controller 98 to receive image
data signal 99. Controller 98 may be comprised of softWare,
hardWare, or a combination of softWare and hardWare.
steps of the present invention.
according to the present invention may include image cap
ture device 12 Which may produce image data 13 Which may
also include test data 15. Image data 13 may be used directly
may also comprise one or more ?le elements of a digital
65
data in accordance With the metadata to create images 81.
Projector 80 may further include conversion tables 96.
The conversion tables may contain different prede?ned color
pro?les to adjust incoming image data 91 in accordance With
a particular, pre-selected purpose. Thus, conversion tables
96 may contain color pro?les de?ning different color spaces
Within Which image data 91 may have been originally
created. The conversion tables may further contain color
US 7,333,154 B2
5
6
pro?les de?ning di?ferent “moods” or other image charac
data. One additional possible use of the conversion tables is
to provide for different uses of the display venue (movie
Resolution can also be measured With a single pixel
feedback sensor. A test signal With small detail can be
projected that may only appear on the screen if the projector
lens is in focus. If projector 80 is out of focus, the small
detail Will not appear and the screen Will be darker. The
invention thus also provides a method for adjusting the focus
of a projector’s lens, Which can also be accomplished
theater, auditorium, bar/dance club, home theater), e.g. con
remotely.
tain different settings for displaying movies, video clips
Feedback sensor 92 may also include multi-channel capa
bility such as a combination of video and audio channels.
teristics that can be used to ensure that displayed images 82
have the look originally intended by the creator of image
data 91, and thus provide for a method to ensure the
preservation of the artistic integrity and intent of the image
during a presentation, videos during a party, etc. Conversion
tables 96 are thus not limited to containing solely color
The feedback sensor is preferably attached to the projec
tor to form a unitary structure thereWith, but may also be
information, but may also contain, among other information,
luminance and light level settings, as Well as information
relating to settings Within the venue such as ambient light
physically separate and apart from the projector. When the
settings.
the re?ected light from the screen, including the effects of
the projection booth port glass and the screen itself. This
may be of importance because glass can contain color that
feedback sensor is positioned at the projector, it measures
Conversion tables 96 may also contain information
related to processing the sound tracks included in image data
91. Thus, in an alternative embodiment, a hardWare or
may change the spectrum of light passing through it, and
softWare-based utility may be provided that uses real-time or
olf-line analysis of the data stream, or data encoded during
program origination, to provide a control signal to set the
gain, or restrict the bandWidth of the audio tracks, so that
audible distortion or damage to the ampli?er or speakers at
theatre screens may turn yelloW and darken With age.
20
itself, may also be taken into account.
Feedback sensor 92 is placed and oriented so as to detect
displayed images 82 as re?ected off screen 83 and thus as
actually seen by a vieWer seated in the venue. The feedback
high listening levels is prevented. This feature is thought to
be especially attractive and useful Within a home theater
Anything else in the light path, such as the projection lens
25
sensor may provide feedback signal 87 to image adjuster 94
setting.
in response to detecting displayed images 82. Image adjuster
Referring noW to FIG. 4, projector 80 may further include
feedback sensor 92 to detect displayed images 82 as actually
re?ected by screen 83, and thus as actually seen by a vieWer
seated in the venue and Watching the images on the screen.
In its simplest implementation, the feedback sensor can be
94 may further adjust image data 91 in accordance With
feedback signal 87 to account for characteristics of the
30
a single element photo-sensor 92A (CCD or photo-diode)
projector and venue, and thus o?fset changes to projected
images 81 caused by the projector itself, or changes to the
re?ected images 122 caused by the screen, ambient lighting
in the venue, etc.
Projector 80 may also include communication link 85 to
With a simple lens 92B such that the sensor only sees the
projection screen. The entire screen can be illuminated for
Thus, in one embodiment, the feedback sensor may com
transmit feedback signal 87. Communication link 85 may
comprise a modem and a telephone line, a dedicated ISDN
line, a TCP/IP link, or any other type of communication link
knoWn in the art. The feedback signal may thus be provided
to a remote site for monitoring the quality of the displayed
images. Further possible uses of the feedback signal may be
to ensure accountability of the venue operator by verifying,
for example, that the proper movie is shoWn at the scheduled
prise a number of photocells for detecting each of the
times, etc. In this manner, movie theatre oWners may also
primary colors, respectively. In another embodiment, feed
remotely verify the consistency of image quality among all
measurements that Would re?ect the performance of the
35
entire screen on the average. HoWever, feedback sensor 92
may be comprised of any other light-detecting device as
knoWn in the art. The feedback sensor may be color
sensitive, and may thus be comprised of a plurality of
photocells, each such photocell adjusted to detect one color.
40
of their theaters, and may ascertain the need for equipment
back sensor 92 may comprise a plurality of photocells, each
of Which is oriented so as to detect images 82 as re?ected by
separate, individual sections of screen 83. In this embodi
ment, feedback sensor 92 may be used to detect variations
45
Also in response to the feedback signal, image data signal
99 may be adjusted by, for example, specifying a different
across the screen.
The feedback sensor, hoWever, may also be a broadband
luminance sensor not sensitive to the color of the projected
50
light. The light generated by the projector is composed of
Red, Green, and Blue elements, each of Which can be shoWn
sequentially. In this method of use, the feedback sensor can
measure the light level for each color individually. Subse
quent softWare can calculate the appropriate corrections to
be applied to make the projector meet the desired color
standard.
55
conversion table 96 to be used to adjust image data 91.
Additionally, if none of the conversion tables residing in
projector 80 can properly adjust image data 91, a custom
conversion table may be provided to the projector via
communication link 85. In one embodiment of the invention,
image data signal 99 is also provided to projector 80 via
communication link 85, and may thus be provided in real
time at the scheduled time for displaying the images (e.g.
movie) or doWnloaded just prior to the scheduled perfor
mance. In such an embodiment, a custom conversion table
may be incorporated into metadata 93, or simply added to
image data 91 in addition to metadata 93, and may then be
Conversely, the screen can be illuminated over distinct
portions of the entire screen, so that measurements Would
characteriZe the uniformity of screen performance over its
maintenance or repair at any one of the particular theaters.
60
extracted by controller 98 from image data signal 91 and
entire area. This Would alloW one to measure shading errors
provided to image adjuster 94.
or light fallolf on the sides, for instance. It is necessary to
generate a test signal for each area that can be related to the
The ability to provide custom conversion tables may also
greatly reduce or eliminate altogether the need for ?eld
technicians to visit the venue to adjust the projector. Thus,
sensor measurement at that time. The sensor is not spatially
sensitive; the analysis softWare only knoWs a speci?c area
because the test signal and the light measurement occurred
at the same time.
65
in one method of use of the invention, a series of tests may
be conducted on projector 80 at any desired frequency (e.g.
daily, Weekly, etc.) and an appropriate set of conversion
US 7,333,154 B2
7
8
tables 96 downloaded for later use in adjusting image data
91 in accordance With detected characteristics of the pro
tions using analog media, digital media and transmissions,
jector, the screen, and the venue. The test or tests may rely
on the feedback sensor 92 to provide feedback signal 87 to
a remote location Where the current characteristics of the
projector are determined from the information contained in
The test signal data may be used to align the venue enter
and optical media and transmissions hoWever distributed.
tainment system to reproduce the intended performance and
one or more feedback channels may provide the distributor
or creator information or control of the characteristics of a
performance.
the feedback signal, the knoWn image data provided for the
tests, and the differences therebetWeen. In one embodiment,
Although the above embodiments have been described
the test simply consists of displaying the image data 91. In
another embodiment, specialiZed images such as monochro
matic shapes may be displayed on various portions of screen
Within the context of a movie theater, it must be understood
that the inventive concept presented herein may be equally
applicable to any other venue Wherein images and sounds
are presented in response to digital data input. Thus, a
system according to the present invention may be an infor
83, to measure the response to different colors as Well any
variations across the screen. Additionally, as mentioned
previously, tests may be run displaying single pixels to
determine if the projector is focused properly onto the
mation-based technology that enables optimum playback of
screen. Any other of a number of tests may also be employed
cinema. The present inventive technique achieves this by
means of information provided by data pre-encoded at the
digitally encoded audio and video for both the home and
With feedback sensor 92.
In a further use of the invention, a system is provided for
managing the production and distribution of digital cinema
projects to permit accurate management of production val
20
ues to enable accurate and measurable control. Thus, meta
data 93 may include a test signal to assist the projector
operator in insuring the projector is indeed set to the
intended look in the event of any creative lighting applied or
time of origination, or from post analysis of the audio and
video data-streams (real-time or off-line). The methodology
of the present invention, Which can be implemented in
hardWare or softWare, may in general be adapted to match
the requirements of the end customer including:
TV program originators
TV program providers
effects used that Would create an unnatural look to the scene. 25 TV broadcast distribution
Film and Video directors
Film and Video studios
Film distributors
The test signal may encompass elements that determine
White level, Black level, Grey steps, Frequency response
and linearity as Well as sound parameters. Chroma channels
may exhibit similar signals including a bar pattern that can
be used to insure the best colorimetry is maintained.
30
The test signal may be inserted on an active but unused
Music distribution (CD, DVD, Internet)
Radio program originators
Radio program providers
line of video to track and monitor the video image’s signal
level and quality throughout the mastering and replication
process. The image quality is therefore measurable by
referencing this signal. This same model can be applied to
Radio broadcast distribution
35
audio and digital cinema.
When capturing an image With a digital cinema camera,
test signal data can be inserted and recorded along With the
active picture and sound. This test signal data may serve as
a reference for the sound and picture quality and associated
Music program originators
Music program providers
Computer game originators
Computer game providers
Computer game distributors
40
technical parameters. The post production process may
Cable and satellite distributors
PC manufacturers
Professional equipment manufacturers
Consumer electronics manufacturers
involve such things as “timing” or changes to color balance
Professional consumer
Domestic consumer
and component signal levels in order to produce ?nely tuned
images and sound. At any time throughout the production
and post-production processes, one can return a scene to the 45
Home netWorking equipment manufacturers
original image capture levels by referencing the test signal
With the proliferation of video devices in automobiles and
data and adjusting levels to their original state. For scenes
used in special effects, the test signal data can be used to
control levels and maintain continuity betWeen like scenes.
airplanes, systems according to the present invention may
Applications of this test signal data in the creation of the
digital master may include:
Creation of the High De?nition or Super High De?nition
50
Digital Master;
From Digital source to Digital;
From Digital source to Film; and
55
The test signal data generator may also be incorporated
into the audio/visual capture device on the set, therefore
60
In a still further aspect of the present invention, test
signals may be added to entertainment distributions such as
In another still further aspect of the present invention, test
signal data may be added to entertainment venue distribu
MaximiZe the performance of all components Within the
car’s electronic ‘netWork’ by creating a reference standard
by Which the components must perform, With respect to
the current and future THX Speci?cation standards.
DoWnload neW settings for component replacement &/or
upgrades in after market segment.
Dynamically adjustable compensation for road, Wind, and
analog media, digital media and optical media. The test
signals may be used to align the home entertainment system
of a user to reproduce the intended theatrical performance.
of the particular automobile, the audio/video equipment in
the automobile, and other variables such as travelling speed,
cabin noise, etc. A system according to the present invention
may also:
From Film source to Digital.
eliminating the need for a separate piece of equipment to
generate the test signal data.
also be applied to these venues. Thus, in one embodiment,
a system according to the present invention may doWn load
information regarding the parameters of a particular audio or
video presentation and adjust the output streams in accor
dance With these parameters and the knoWn characteristics
motor noise contaminating the passenger compartment.
65
Compensation for the change in perceived frequency
response in relation to volume settings With adaptive
frequency response curves.
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