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 \ ~— 29A 5'1 — 29B : STANDALONETESTE DATAGENERATOR : ‘ 1 [5V IQ/I : I] : msmmunou i 29 ' 25s ' ll POST-PRODUCTION 99 25 1 1 ------------- mp E FINAL CONTENT PRODUCTION 7 ' ' l _ "j___ " 29f -‘ Zia s0 88 1 81 87 90/_TD 92 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 \ H 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 _ _ _ _ _ _ _ ____l U.S. Patent Feb. 19, 2008 Sheet 9 0f 15 US 7,333,154 B2 68 Q g Hs C 77 72 74 IN-PHASE 70 HX MENU 75 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 j LFE & C % 2.2 OUT-of-PHASE' 0') -J F 3 I! U) l: H? MENU 1 If out-of-phase, reverse speaker E MAIN MENU 3 wires on speaker with Red Box FIG. 12 U.S. Patent Feb. 19, 2008 Sheet 12 0f 15 US 7,333,154 B2 3K NS vN IK 2E Emz a Q $252I25$5102ammi.E2058 .UFN ~ w U.S. Patent Feb. 19, 2008 Sheet 15 0f 15 US 7,333,154 B2 was; Ew>zo 20+5326 f w_Ew>zo ompow 5 LI Q m ozm 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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