TW200935873A - Playback and overlay of 3D graphics onto 3D video - Google Patents

Abstract

The invention relates three-dimensional (3D) display of an information stream comprising a main video stream and auxiliary video information comprising video depth information for enabling three-dimensional (3D) display of the main video stream; at least one graphics stream and at least one auxiliary graphics information associated therewith, the at least one auxiliary graphics information comprising at least one graphics depth information for enabling three-dimensional (3D) display of the at least one graphics stream. A method according to the invention comprises reading or receiving the information stream; determining an available depth range for 3D display; attributing corresponding non-overlapping depth ranges to each of the main video stream and of the at least one graphics stream; scaling each of the video depth information and the at least one graphics depth information to the corresponding depth range and using the scaled video depth information and the at least one graphics depth information for three-dimensional (3D) display of the information stream. The invention enables overlaying 3D graphics onto 3D without unwanted occlusion problems.

Description

200935873 IX. INSTRUCTIONS: TECHNICAL FIELD The present invention relates to a method for playing a stream of information suitable for playing on a three-dimensional (3D) display, the information stream comprising a main video stream and auxiliary video information 'including Video depth/information for realizing three-dimensional (3D) display of the main video stream; at least one graphics stream and at least one auxiliary graphics resource associated therewith, the at least one auxiliary graphics information including at least one graphics depth information, A three-dimensional (3D) display for implementing the at least one graphics stream. The invention is also directed to a device for playing a stream of information as described above, and to a signal comprising a stream of information as described above. [Prior Art] By introducing a new three-dimensional display, there is an opportunity to bring 3D video into the consumer market. Such three-dimensional displays can handle both three-dimensional displays and two-dimensional displays. There are various formats for 3D video today and most are based on a single perspective stereo, whereby a user can see one of the stereos from a single point of view. However, the introduction of 3D video is not only about the introduction of new displays that can be displayed in 3D, but also has an impact on the entire content generation and delivery chain. First of all, the generation of 3D video content is in the initial stage of technology, and various formats have been proposed, each of which has its own advantages and disadvantages. Relative to the content distribution, a new encoding method is imported for encoding the three-dimensional content and a new format has been proposed to include the three-dimensional video stream in the mpeg stream. A known fact is that the introduction of a new format is generally slow and the required features of the new format are compatible with the reverse playback of the installed player base. A lost area is a rack of 3D video content in a distributed or published format such as Digital Video Broadcasting (DVB) or DVD 136730.doc 200935873 and a high-quality format such as Blu-ray Disc (BD) or HD-DVD. An important feature of high-quality publishing formats is the ability of content providers to provide multiple video streams such as picture and graphics and interactive streaming. For example, in the case of BD, DVD, and HD-DVD, such systems are known to allow simultaneous playback of video and graphics (e.g., subtitles, navigation buttons). Usually a stream of graphics such as subtitles should always appear before the main video, and therefore later added to the last image to be displayed.

However, when using a 3D display, the same combination order and overlap limit should be maintained, but this may not happen. In a three-dimensional display, each pixel (belonging to a video or graphics stream) has a depth associated with the display. If two-dimensional + depth coding of three-dimensional streams is used, this depth is directly related to it, or depth information can be directly inferred from other coding systems, such as two-dimensional + disparity information. It is not possible to prevent the pixels of the main video from having a lower depth than some pixels belonging to a graphical object such as a subtitle or an interactive button (ie, to be displayed closer to the viewer), which results in a portion of the graphical object being dominated by the background video Blocking' and the author's intention is that all graphics appear in front of the video background. Figure 1a illustrates the known overlap of video and graphics streams in the twisted.it t» λ, , ι.- 疋 special conditions of the B D system. In these systems, left*', there is a main movie plane, an expression plane including static image objects, and an interactive plane including a dry interactive object. The two planes overlap each other: the main electric power is in the background, the expression plane is on the top of the main movie plane and the interactive & Lewu dry noodles are the most forward. The right image in Figure la (4) shows the (four) image with three planes that overlap. Figure lb is a two-dimensional representation of the tangles in the case where the tri-hybrids of each stream are not visible. 136730.doc 200935873 Due to the depth, portions of the main movie plane may have a depth closer to the viewer than the graphical item. In these sections, the foreground graphic object is penetrated and the text becomes difficult to read, and the general aspect of the displayed image is broken and unpleasant. This is particularly problematic in the case of graphics streams, as graphics may appear anywhere in the video and depend on input from the user. SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-described problems of displaying a three-dimensional video stream and a three-dimensional graphics stream on the top without clogging problems. One object of the present invention is achieved by a method according to the claim for playing a stream of information suitable for playing on a three-dimensional (3D) display, the information stream comprising a main video stream and auxiliary video information The auxiliary video information includes video depth information for realizing three-dimensional (3D) display of the main video stream; at least one graphics stream and at least one auxiliary graphics information associated therewith, the at least one auxiliary graphics information including at least one graphics depth information It is used to implement a three-dimensional (3D) display of at least one graphics stream. According to the present invention, the method includes reading or receiving the information stream; determining a usable depth range of the three-dimensional display, and assigning the non-overlapping depth range to each of the main video stream and the at least one graphics stream, and adjusting the video depth proportionally The information and each of the at least one graphical depth information are to the corresponding depth range, and the scaled video depth information and the at least one graphics depth information are used for three-dimensional (3D) display of the information stream. This is based on the problem of occlusion between different planes by dividing the interval of possible depth values that can be displayed by a display into non-overlapping ranges and assigning them to existing expression planes (eg 136730.doc -9- 200935873 video and The circular plane), the broadcast then scales the depth of each stream to the range to solve the in-depth understanding. Therefore, according to the present invention, the highest depth of a pixel of a plane is smaller than J in the next plane (in the direction of increasing depth)

The lowest depth of the pixel. It should be noted that this concept is applicable to at least two overlapping three-dimensional graphics streams or non-moving streams (e.g., transmissive sheet displays) of any of the playback systems of the playback system, and W. Thus, the present invention can also be applied to displaying a translated three-dimensional graphic object on top of a three-dimensional secondary video or dimensional side view on top of a video. In an advantageous embodiment of the present month, the information stream further includes overlapping information to overlap the at least one graphics stream to the main video stream, the overlapping information including the non-overlapping depth range, wherein the non-overlapping depth range is better Line 4 is the percentage of depth of the available depth range. When expressed as a hundred degrees of ice, you can define a range limit when writing content, so the author is provided to assign a larger range to - plane (such as interactive graphics) and - smaller 1 has been surrounded by another (such as subtitles) ) freedom and control. In addition, a non-absolute range indication (such as a percentage of the maximum depth value relative to the target screen) has the advantage of compatibility with any three-dimensional display. In a preferred embodiment, the information flow system BD is compatible and includes a video stream, a graphics stream, and an interactive graphics stream. The interactive graphics stream is displayed before the graphics stream. Before the main video stream. In such cases, an optimum value for the depth range corresponds to a depth range of 5:3:2 for the main movie stream, the graphics stream, and the interactive graphics stream. The invention also relates to a device as defined in claim 7 for playing a stream of information suitable for playing on a three dimensional (3D) display, and a signal as defined in the claim "136730.doc 200935873. These and other aspects of the invention are apparent from the description of the specific embodiments described hereinafter. [Embodiment] FIG. 2 schematically illustrates a playback device in which the present invention is implemented. It should be noted that the description here corresponds to a specific embodiment from the playback of the optical disc, but the source of the information stream is irrelevant and can be provided locally on a recording medium such as an optical medium, a hard disk or a solid state memory. Or it can be received via a broadcast over a wired or wireless transmission system, including the Internet. The present invention can be implemented in any device for playing video information, including hard disk recorders, video converters (STBs), and digital (satellite/terrestrial/cable) receivers. The optical disc has a track that represents the position of the series of pre-recorded marks of information and is configured in a single spiral pattern that forms one of the substantially parallel tracks on an information layer. The optical disc may include one or more information layers of a recordable type. A known example of a pre-recorded optical disc is a CD-ROM or a DVD-ROM or a high-density optical disc such as an HD DVD-ROM or a BD-ROM. For example, further details regarding the physical structure and addressing information of CD-ROMs and DVD-ROM discs can be found in reference documents ECMA-130 and ECMA-267 (ISO IEC - 16449), respectively. In the case of the BD system, further details can be made public. Available Technical White Paper "Blu-ray Disc Format General, August 2004 (Blu-ray

Disc Format General August 2004) and "Blu-ray Disc lC Physical Format Specifications for BD-ROM November (2005)" were found in Blu-ray Disc lC Physical Format Specifications for BD-ROM November (2005). Published by Ray Disc association (http: 136730.doc 200935873 //WWW.bluraydisc.com). Information is expressed on the information layer by optically discoverable marker numbers along the track. The track 丨 2 on the disc is indicated by a pre-embossed track structure provided during the manufacture of the blank disc. The magnetic structure is constructed, for example, by a pre-groove that causes a read/write head to follow the track during scanning. The disc is intended to carry user information in a standardized format for playback on standard playback devices. The recording format includes a method of recording, encoding, and logically mapping information to a recording space provided by the track. The recordable space is usually subdivided into a lead-in area (LI) 31, a data area (DZ) for recording information, and a lead-out area (L〇). The lead-in area (LI) usually includes basic disc management information and information on how to physically access the data area (DZ). For example, the basic disc management information corresponds to a content disc table in the CD system or a formatted disc control block (FDCB) in the DVD system. The user information recorded in the data area (DZ) is further configured according to the application format, for example, including a predefined structure of files and directories. In addition, in the logic level, the user information in the data area is configured according to a file system including file management information, such as is〇9660 for CD system, which can be used as ECMA_U9; or for dvd system, which can be used as ECMA-167. The recording device has a magnetic member for scanning a magnetic disk, and the scanning member includes: a driving unit 16 for rotating the optical disk; a magnetic head 18' a positioning unit 21, # is used for the magnetic track The magnetic head 18 is roughly clamped in the radial direction; and a control unit 17. The magnetic head 18 includes a known type of optical system for generating the radiation guided by the optical elements of the radiant point 19 on the track 136730.doc • 12· 200935873 12 of the focus ___beam 2Q to the optical disc η. (4). The Han beam 2 is produced by a light source such as a laser diode. The magnetic head further includes (not showing a wide-focus actuator for moving the focus of the radiation beam 2G along the optical axis of the radiation beam; and - a tracking actuator for use in the center of the magnetic track Finely locating the radiant point tracking actuator in the radial direction may include a coil 'for radial movement _ optical element or may be otherwise configured to change the angle of a reflective element.

In order to read the information 'radiation reflected by the information layer is detected by a detector of the usual type (for example, a four-quadrant diode) in the magnetic head 18, for generating a read signal and another (4) The signals, such as the tracking error signal and the focus error signal, are used to control the tracking actuator and the focus actuator. The control unit το 17 controls the information from the disc (10) and can be configured to receive commands from the user or from the host computer. For this purpose, control unit 17 may include control circuitry 'e.g., a microprocessor, a program memory, and a control gate for performing the procedures described below. Control unit j 7 can also be implemented as one of the state machines in the logic circuit. For reading, the read signal is processed by a read processing unit, and the read processing unit includes a demodulator 26, a __deformatter 27, and an output single 28'. Information to suitable components such as monitors, speakers. The force of the demodulator 26, the deformatter 27 and the output unit 28 is controlled by the controller i 7. Therefore, the operation means for reading information, including the dynamism unit 16, the magnetic head 18, the locating unit 21, and the read processing unit demodulator 26 are responsible for demodulating the data signal from the channel signal by using a suitable channel decoder. 'as disclosed in U.S. Patent No. 5,920,272, or 136,730, doc. The deformatter 27 is responsible for using the error correction code and/or deinterleaving for extracting information signals from the data signals. The output unit 28 is responsible for processing the information signal according to the logic level under the control of the control unit 17. In addition, it should be noted that the information signal can be configured according to the playback format, which can be associated with the management information 5fl and the audio-visual information. Therefore, the output unit is responsible for separating the management information from the audio_video information and for multiplexing/decoding audio and/or video information. Suitable compression/decompression components are described in WO 98/16014-Α1 (ΡΗΝ 16452) for audio, and ® is used for video in the MPEG2 standard (iSO_IEC 13818). The record format specified by the user information record is used to manage the recorded user information and is also recorded on the disc. The video and audio information generated by the output unit 28 is transmitted to the appropriate component' which is suitable for display for video information. Some three-dimensional displays are known in the art as described in U.S. Patent No. 6,069,650. The display device includes an LCD display including an actively switchable liquid crystal lenticular lens. Depending on the image content, a defined set of locations at the display can be switched for two or three dimensional mode. For content providers (such as movie studios) who wish to use such display systems, they need to be able to distribute two dimensions on the same recording medium in a format that is compatible with the old player. For both of the three-dimensional content, the player that cannot display the three-dimensional stream should be able to process the recording medium. The format of a possible video application format that is applicable to a invention, also known as the BD video application format, is described in the following white paper (which is incorporated herein by reference) which is available at www.bluraydisc. Com 136730.doc 14 200935873 Download: - Technical White Paper: "80-11 Blu-ray Disc Format 2. Eight Logic and Audio Vision Applications - Format Specification, August 2004 (Blu-ray Disc Format 2. A Logical and Audio Visual Application -Format Specifications for BD-RE August 2004)";

- Technical White Paper: "BD-RE Blu-ray Disc Format 2.B Logic & Sound " Vision Visual Application Format Specification, March 2005 (Blu-ray Disc Format 2.B

Logical and Audio Visual Application Format Specifications ❹ for BD-ROM March 2005)" - Technical White Paper: "BD-ROM Application Definition Blu-ray Disc Format BD-J Baseline Application and Logic Model Definition, March 2005 (Application Definition Blu- Ray Disc Format BD-J Baseline Application and Logical Model Definition for BD-ROM March 2005)". In the BD system, the definition of four plane systems is defined as follows: from the back side, the main video plane, the secondary video plane, the expression graphics plane (PG plane) ® and the interactive graphics plane (IG plane), and the planes are connected. To one of the dedicated decoder outputs. On the primary video plane, the mobile or still image data from the primary video decoder is represented. On the secondary video plane, the moving image data from the secondary video decoder is expressed. On the expression graphics plane, the graphics data from the presentation graphics decoder or the text subtitle decoder is expressed and the data on the two planes are first overlapped to produce intermediate video material. The transparency ratio between the two planes is defined as the alpha value in the CLUT that represents the graphics plane. On the interactive graphics plane, the graphics data from the interactive 136730.doc 200935873 graphics decoder is expressed and overlaid on the above intermediate video data to cause the final video output. The transparency ratio between the two data is defined as the alpha value in the CLUT of the interactive graphics plane. It should be noted that Figure 1 illustrates three of these planes, with the secondary video plane not being apparent. The calculation of multiple fields of view for three-dimensional display can be based on a two-dimensional image and an additional image, relative to the encoding of the video information for three-dimensional playback (which is not addressed by known BD systems). a so-called depth map, as described in

Oliver Sheer's "3D Video Communication" O (Wiley ' 20 5 years, pp. 29-34). The depth map conveys information about the depth of the object in the 2D image. The grayscale value in the depth map indicates the depth of the associated pixel in the 2D image. A stereoscopic display can be used to calculate the additional field of view required for stereoscopic use by using the depth values from the depth map and by calculating the required pixel conversions. In contrast to a format for compressing and transmitting 3D video information, a solution uses an MPEG stream, wherein an MPEG 3D video stream will include a 2D video stream (either as a program or a basic video transport stream), and Multiplexing with a two-dimensional video stream, an auxiliary stream including additional information for three-dimensional display (eg, a depth map stream). It should be noted that while the above two-dimensional video + depth map is described as a preferred format for implementing the present invention, it is not a unique format that can be supported. For example, 2D video + depth map can be used as an input format by adding background relief information and transparency information. Alternatively, multiple fields of view can be used as input signals and mapped directly onto display (sub)pixels. In a specific embodiment of the present invention, in order to implement three-dimensional display for each of the BD planes, for each plane system, the format two-dimensional 136730.doc •16·200935873+depth can be used as previously described, that is, the full-resolution image is divided into four. One quadrant and use it for two-dimensional content, the other carries depth information. The planes of this system are in a format that they are combined to be the last image displayed on the screen.

The inventors have well understood that the problem of occlusion between different planes is solved by dividing the interval of possible depth values, which can be displayed by the display to the non-overlapping range and assigned to existing expression planes, such as video and graphics planes. . Therefore, according to the present invention, the highest depth of one pixel of a plane is smaller than the lowest depth of one pixel in the lower plane (advancing in the direction of increasing depth). It should be noted that this concept is applicable to any playback system that displays at least two overlapping three-dimensional (still) streams of an image, such as a slide display, or two overlapping video streams. Thus, the present invention can also be applied to display two-dimensional secondary video on top π of a three-dimensional video or to display a translated three-dimensional object on top of a three-dimensional background. Scope restrictions can be defined at the time the content is written to provide the author with the freedom and control to assign a larger scope to a plane (such as interactive graphics) and a smaller scope to another (such as a subtitle). A non-absolute range indication (such as a percentage of the maximum depth value relative to the target screen) will be the best choice. A playback method in a basic embodiment of the present invention (wherein a three-dimensional object is superimposed on a one-dimensional video stream), comprising the steps of: - reading and processing the two streams, including appropriate processing, such as demultiplexing - Determine a usable depth range for 3D display; - Assign the corresponding non-overlapping depth range to each of the main video stream and graphics stream; - Scale the video depth information and graphics depth information to the corresponding depth 136730.doc 17 200935873 Range; ❹ - Use the scaled video depth information and at least one graphics depth information for the three-dimensional (3D) display of the information stream in the presentation stage. In a second embodiment of the invention (illustrated in Figure 3) this system extends to three planar graphics planes. 35, as used in one of the BD systems, 3 6 and 3 7 indicating the relative depth of each of the main movie plane video planes and the two, the expression plane and the interactive plane, 3, the depth system description becomes The opposite direction increases. In particular, in the improved aspect of the invention, the scope limitation can be defined at the time of writing the content to provide the author to assign a larger range to a plane (such as an interactive graphic) and a smaller range to another (such as a subtitle). Freedom and control. A non-absolute range indication (such as a percentage of the maximum depth value relative to the target screen) would be the best choice. One of the ranges is 〇% for the main movie plane and 30° for the expression plane. And for the interactive plane 2〇0/〇. Another problem dealt with by the inventors is how to provide a depth range selection that is needed to avoid clogging problems in a manner that maintains backward compatibility with known systems. Within the BD system, there are known three types of graphics segments: _object definition segments that store the bit map values of a graphical object: - a tonal definition segment that provides a mapping between the equivalent and the true color; - Expression and interactive composite segments (c〇mp〇siti〇n Segment), which provide information in a manner in which the current graphical elements should be added to the graphics plane. When implementing a three-dimensional object, it is desirable to use two additional types of segments, a depth map object definition segment and a depth map toning segment, along with the predecessor. 136730.doc -18- 200935873 According to a specific embodiment of the present invention, - the new data 靡 _ is added to the complex m (9) 4 pth - p entage surname "to m and structure. Because the composite segment is also maintained - for the depth map toning the fragment The reference is used in conjunction with a graphic object, which allows the depth map to be scaled according to the percentage of expression. Therefore, this implementation connects different parts of the depth to different graphics planes, such as 2 (four) to subtitles and 3% of the entire depth to the interactive menu. According to an alternative embodiment of the present invention, if depth_percentage

The rotten position directly includes the definition of the depth map tones to achieve the same effect. The following items should be noted for the implementation of the sun, the moon, the scent, and the scent: The information flow processed by the output unit 28 is provided to a video processing unit 31, which is responsible for implementation. Known functions of the playback model, such as buffering, de-processing multiple elementary streams, and executing received commands. The video processing unit 31 is typically implemented as a combination of software and hardware. The processed video stream is provided to a rendering unit that is responsible for processing the video information into a signal suitable for three-dimensional display. It should be noted that the presentation unit can also be implemented in the three-dimensional display itself. Furthermore, it is known that the functions of the video processing unit 31 and the control unit 17 of the presentation stage 32 can be implemented in a device by the same hardware and/or software blocks. In accordance with the present invention, the control unit 丨7 is adapted to determine a usable depth range for three-dimensional display and is used to assign a corresponding non-overlapping depth range to each of the primary video stream and the at least one graphics stream, and for scaling Each of the video depth information and the at least one graphics depth information is to the corresponding depth range, and the presentation unit is adapted to use the scaled video depth information and 136730.doc -19- 200935873 at least one graphic depth information for information Three-dimensional (3D) rendering of the stream. In a particular embodiment, the depth determining member 29 is provided in the control unit, preferably as a firmware or as an embedded software. In accordance with the present invention, it is desirable to perform two additional functions within a functional block comprising video processing unit 31 and presentation stage 32. A particular embodiment is illustrated in more detail in FIG. The received stream is demultiplexed and buffered in unit 4, and the graphics stream is passed to stream graphics processor 42. In order to produce a graphic image showing each of the right and left views, two buffers 43 and 44 under the control of the graphics controller ® are provided. Two buffers 43 and 44 supply two graphics plane processors 45 and 46. In accordance with the present invention, the two graphics decoders (43, 45 and 44, 46, respectively) are adapted to take into account the value of depth_percentage present in the composite segment. The depth 囷 palette must be adapted to the depth-percentage value, ie the minimum depth and maximum depth contained in the palette must be within this percentage of the full possible depth value. This ensures that the expression plane and the interactive plane will have A depth based on the corresponding depth_percentage value. The device ensures that the depth of the video plane does not exceed its percentage (i.e., the total possible depth. The span minus the sum of the percentages of the two graphics planes) when all the planes are overlapped together. In addition, it should be noted that BD and HD-DVD also support a secondary video plane for pip. For PIP, the video in the PIP can appear with the primary video or within a quarter of the screen. The primary video cannot be adjusted proportionally, so the secondary video always covers the portion of the primary video. Another known limitation is that the secondary video system is completely transparent or completely opaque. Therefore, when the secondary video is 136730.doc •20-200935873 is completely opaque, according to a similar method that may occur when the graphics are present, the video does not penetrate during the 2D+depth information in the 71T device. Other video. According to the present invention, an alternative solution is feasible in the case of two video streams. According to the present invention, in the player, the primary video and the secondary video are combined for both two-dimensional and for depth information. The information from the secondary video plane simply overwrites the pixels of the primary video on the same presentation plane. This solution may be based on the fact that there is no translucency and there is no strong need to rely on the secondary blocking of the information of the main video. This is in contrast to overlapping a graphics stream because the graphics stream can be translucent and can overlap the video stream in any shape and location. Finally, it should be noted that the above exemplary embodiments of the present invention are directed to a playback device for playing back information from a disc. It should be noted that the source of the information is irrelevant, it may be provided natively on a recording medium such as an optical medium, a hard disk or a solid state memory, or it may be received via a broadcast via a wired or wireless transmission system (including the Internet). The present invention can be implemented in any device for playing video information, including, in particular, a hard disk recorder, a video converter (STB), and a digital (satellite/terrestrial/cable) connector. The invention can be summarized as follows: The present invention relates to a three-dimensional (3〇) display of a news stream, the information stream including a main video stream and auxiliary video information, the auxiliary video information including three-dimensional (3D) for realizing the main video stream. The displayed video depth information 'at least one graphics stream and at least one auxiliary graphics information associated therewith'. The at least one auxiliary graphics information includes at least one graphics depth information for implementing a three-dimensional (3D) display of the at least one graphics stream. A method according to the present invention 136730.doc • 21 - 200935873 includes: reading or receiving a flow of information; determining a usable depth range for three-dimensional display; assigning a non-overlapping depth range to a primary video stream and at least a graphics stream Adjusting the video depth information and each of the at least one graphics depth information to the corresponding depth range; and using the proportional video depth information and the at least one graphics depth information for the three-dimensional OD) display of the information stream. The present invention achieves the problem of overlapping three-dimensional graphics onto three dimensions without unwanted jamming. It is to be noted that the specific embodiments described above are intended to be illustrative and not limiting. Those skilled in the art will be able to devise many alternative embodiments without departing from the scope of the appended claims. In the scope of the patent application, any reference symbol placed between brackets shall not be construed as limiting the scope of the patent application. Use of the verbs "comprise" and "comprising" and "comprising" or "the" The article "a" or "an" preceding a clause does not exclude the existence of the plural. The invention can be implemented by a hardware comprising several different components, and can also be implemented by a suitably programmed computer. A computer program can be stored/distributed on a suitable medium, such as an optical storage or with a hardware portion, but can be distributed in other forms, such as via an internet or wired or wireless communication. In the system/device/device request item enumerating several components, several components of the components may be embodied by one or the same of hardware or software. The mere fact that certain methods are recited in separate items that are different from each other does not indicate that a combination of such methods cannot be used. BRIEF DESCRIPTION OF THE DRAWINGS Features and advantages of the present invention will be further explained with reference to the following drawings, 136730.doc -22 200935873 where: Figure 1 a illustrates the known video and graphics streams in a particular case of a BD system The overlap </ br> is a two-dimensional representation of the graphics stream blocked by the video stream when both streams are displayed in two dimensions. 2 schematically illustrates a playback device in which the present invention is implemented; FIG. 3 schematically illustrates various table 'planes and associated depth ranges in accordance with an embodiment of the present invention. FIG. 4 schematically illustrates a real processing unit and presentation. The level of a specific embodiment according to the present invention. [Main component symbol description] 11 Disc 12 Track 16 Drive unit 17 Control unit 18 Head 19 Radiation point Stomach 20 Radiation beam 21 Positioning unit • 26 Demodulation converter 27 28 Deformatter wheel-out unit 29 31 32 Depth decision Component processing unit / bow intrusion area to the current level 136730.doc -23-

200935873 41 42 43 44 45 46 DZ LI LOLO α〇—» Early/0 stream graphics processor buffer/graphic decoder buffer/graphic decoder graphics plane processor/graphic decoder graphics plane processor/graphic decoder Data area introduction area lead-out area

136730.doc 24·

Claims (1)

200935873 ., 10, Application for Patent Park: ^ A method for playing a stream of information suitable for playing on a three-dimensional (3D) display, the information stream comprising - a main video stream and auxiliary video information, the auxiliary video information includes Video depth information for realizing three-dimensional (3D) display of the main video stream; at least one graphics stream and at least one auxiliary graphics information associated therewith, the at least one auxiliary graphics information including at least one graphics depth information for implementation a three-dimensional (3D) display of the at least one graphics stream; the method comprising: reading or receiving the information stream; determining a usable depth range for three-dimensional display; - assigning a non-overlapping depth range to the primary video stream and the Each of the at least one graphics stream; - proportionally adjusting each of the video depth information and the at least one graphics depth information to the corresponding depth range; - using the scaled video depth information and the at least one graphics depth information A three-dimensional (3D) display of the information stream. ‘2. The method of claim 1 wherein the information stream further comprises overlapping information&apos; for overlaying the at least one graphics stream onto the primary video stream, the overlapping information comprising the non-overlapping depth range. 3. The method of claim 1 or 2, wherein the non-overlapping depth range is defined as a depth percentage of the available depth range. 4. The method of claim 2 or 3, wherein the information stream comprises a graphics stream and a 136730.doc 200935873 interactive graphics stream. 5. The method of claim 4, wherein the depth ranges are selected such that the interactive graphics stream is displayed before the graphics stream, the graphics stream being displayed before the primary video stream. 6. The method of claim 5, wherein the depth range has a quota of 5:3:2 for the main movie stream, the graphics stream, and the interactive graphics stream. * 7. A device for playing a stream of information suitable for playing on a three-dimensional (3D) display, the information stream comprising a main video stream and auxiliary video information, the auxiliary video information comprising a stream for implementing the main video stream 3D (3D) displayed video depth information; - at least one graphics stream and at least one auxiliary graphics information associated therewith, the at least one auxiliary graphics information including at least one graphics depth information for implementing three-dimensional (at least one graphics stream) 3D) display; the device comprises an - input unit for reading or receiving the information stream; - a control unit for determining an available depth range for three-dimensional display 'and for attribution to a non-overlapping depth And ranging to the main video stream and each of the at least one graphics stream, and for scaling the video depth information and the at least one graphics depth information to the corresponding depth range; a presentation unit, which is adapted The scaled video depth information and the at least one graphics depth information are used for three-dimensional C3D rendering of the information stream. 136730.doc 200935873 8. As claimed in claim 7, the control unit is enabled to define the non-standard: range of clothing as the percentage of depth of the available depth range. The device of the monthly solution 8 wherein the information stream includes a graphics stream and an interactive graphics stream. A device for viewing a item of item 9, wherein the control unit is enabled to select the wood circumference to cause the interactive graphics stream to be displayed before the graphics stream to be displayed in front of the main video stream. U. Seed No. 5 'which includes a stream of information suitable for playing on a three-dimensional (3D) display, the information stream comprising a main video stream and auxiliary video information, the auxiliary video information being included for implementing the main video 3D (3D) displayed video depth information; at least one graphics stream and at least one auxiliary graphics information associated therewith, the at least one auxiliary graphics information including at least one graphics depth information for implementing the at least one graphics stream a three-dimensional (3D) display; the information stream further includes overlapping information for overlapping the at least one graphics stream onto the primary video stream, the overlay information including being associated with each of the primary video stream and the at least one graphics stream The non-overlapping depth range of the joint. 12. The signal of claim 11 wherein the non-overlapping depth ranges are defined as depth percentages. 13. A record carrier comprising a signal recorded thereon such as a request item and a signal. 136730.doc