WO2012018539A2 - Establishing z-axis location of graphics plane in 3d video display - Google Patents
Establishing z-axis location of graphics plane in 3d video display Download PDFInfo
- Publication number
- WO2012018539A2 WO2012018539A2 PCT/US2011/044801 US2011044801W WO2012018539A2 WO 2012018539 A2 WO2012018539 A2 WO 2012018539A2 US 2011044801 W US2011044801 W US 2011044801W WO 2012018539 A2 WO2012018539 A2 WO 2012018539A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- processor
- command
- axis
- display
- user input
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/128—Adjusting depth or disparity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/183—On-screen display [OSD] information, e.g. subtitles or menus
Definitions
- the present application relates generally to establishing the z-axis location of a graphics presentation in a three dimensional (3D) video display.
- 3D video such as 3D television is a fast growing technical field.
- 3D video is established by presenting two simultaneous views of the same video content marginally offset from each other on the horizontal ("x") axis.
- the offset may be thought of as a horizontal disparity.
- Viewing a 3D display from a close distance also makes the 3D effect more pronounced than viewing the display from afar.
- 3D video presentation devices must provide, in addition to 3D content, the capability to overlay graphics onto the video content.
- screen size differences and viewing location differences change the 3D effect and hence there is not an optimal positioning of the graphics in the "z" dimension, i.e., the new, third dimension toward and away from the surface of the display.
- a video display device includes a processor and a video display controlled by the processor.
- the video display defines a display plane and a z-axis perpendicular to the display plane.
- the device also includes a user input device communicating with the processor to send user selection signals to the processor.
- the processor executes logic which includes, responsive to a viewer selection of a user interface (UT), presenting a Ul in a graphics plane of the video display device. Responsive to a first command from the user input device, the processor causes the Ul to appear to move in a first direction along the z-axis, whereas responsive to a second command from the user input device, the processor causes the UI to appear to move in a second, opposite direction along the z-axis.
- UT user interface
- the first direction is toward a viewer of the display and the second direction is away from a viewer of the display.
- the first command thus may be a "move up” command and the second command may be a "move back" command.
- the processor in response to the first command the processor increases a disparity between two identical images along an x-axis defined by the display. In response to the second command the processor decreases the disparity.
- the images defining the disparity may be video content images presented in a video plane of the device, or UT images presented in a graphics plane of the device.
- the first and second commands can cause the processor to cause the UI to appear to move incrementally in that the UI moves a fraction of a total distance available for movement of the UI along the z-axis responsive to a single command,
- a television for presenting video content in 3D has a video dispiay controlled by a processor to present video content in a video plane and a user interface (Ul) in a graphics plane.
- the processor receives input indicating a viewer desire to virtually move the UI up or back along a z-axis that is perpendicular to the video plane and responsive to the input change the location of the UI on the z-axis.
- an apparatus has a video display, a processor configured to receive user input signals, and a non-transitory computer readable storage medium accessible to the processor and bearing instructions to cause the processor to present a user input (UI) pane on the display overlaid on 3D video content.
- the UI pane presents a "move up” indicator and a "move back” indicator.
- the indicators are selectable by a viewer manipulating a user input device to thereby generate the user input signals.
- the processor causes the UI pane to appear to change position with respect to a z-axis defined by the display.
- FIG. 1 is a block diagram of an example system in accordance with present principles
- Figure 2 is a screen shot of an example user interface (Ui) in the graphics plane overlaid on 3D video content;
- Figure 3 is a flow chart of example logic for moving the UI along the z-axis which is perpendicular to the plane of the display,
- a three dimensional (3D) video display device 12 such as a TV, game player, camera, personal digital assistant, laptop computer, personal computer (PC), etc. includes a housing 14 bearing a digital processor 16.
- the processor 16 can control a visual display 18 and an audible display such as one or more speakers.
- the processor 16 may access a media player module such that the device 12 has media decoding capability.
- the processor 16 may access one or more computer readable storage media 20 such as but not limited to RAM-based storage, a chip implementing dynamic random access memory (DRAM)) or flash memory or disk storage.
- Software code implementing present logic executable by the device 12 may be stored on one of the memories shown to undertake present principles.
- the processor 16 can receive user input signals from various input devices, including a wireless remote control (RC) 22, a point and click device such as a mouse, a keypad, etc,
- a TV tuner 24 may be provided in some implementations particularly when the device is embodied by a TV to receive TV signals from a TV broadcast signal source 26 such as a set-top box, satellite receiver, cable head end, terrestrial TV signal antenna, etc.
- the TV tuner 24 may be implemented in a set top box separately housed from the TV and communicating therewith. In other embodiments, no TV tuner may be provided. Signals from the tuner 24 are sent to the processor 16 for presentation on the display 18 and speakers.
- a network interface 28 such as a wired and/or wireless modem may also be provided to enable the processor 16 to communicate with content servers 30 on the internet ⁇ only one server 30 shown in Figure 1 for clarity).
- the server 30 has a processor 32 and a tangible non-transitory computer readable storage medium 34 such as disk-based and/or solid state storage.
- Figure 1 also illustrates the three spatial axes defined by the display 18. As shown, the x-axis is defined by the left-to-right ( width) dimension of the display, the y-axis is defined by the up-to-down (height) dimension of the display, and the z-axis is perpendicular to the plane of the display 18.
- 3D video content is presented on the display 18 by presenting two identical images 36, 38 of the content simultaneously which are offset from each other horizontally (along the x-axis) by a disparity "6".
- Other methods for establishing 3D video may be used.
- a user input pane 40 is presented on the display overlaid on the 3D video content as shown.
- the UI pane 40 is presented, in the graphics plane of the device 12. In the example shown the UI pane 40 is in 3 D, although in some embodiments it could be presented in 2D.
- the UI pane 40 is in 3D it is presented by presenting two identical images 40a, 40b which have an x-axis disparity "SI" between them as shown and in accordance with principles discussed above.
- the example UI shown in the pane 40 is for illustration a simple UI for enabling a viewer to select video input from between the TV tuner 24 and the network interface 28 but it is to be understood that the paiticular function of the UI in the pane 40 may vary and is not limiting.
- one method for enabling a viewer to indicate whether to (virtually) move the UI pane 40 along the z-axis is the presentation in the UI pane 40 of a "move up" arrow 42 and a “move back” arrow 44, both of which may be labeled as such if desired as shown,
- a viewer may manipulate the RC 22 to move a cursor over the desired arrow 42, 44 and then select the desired movement by. e.g., clicking on a key of the RC 22. in one embodiment, a single key click corresponds to an incremental unit of movement.
- a "0" position correlates to the most distant (virtual) position along the z-axis and a "1 " position correlates to the closest (virtual) position along the z-axis.
- a default location along the z-axis for the UI pane 40 might be at 0.5 and a single click can move the graphics plane forward (or back) by an increment of 0.05. The viewer can move the UI pane 40 in greater increments of distance along the z-axis by entering as many clicks as desired on the RC 22.
- the RC 22 may be provided with "move up” and “move back” keys which, when toggled, send commands to the processor 16 to respectively cause the processor to move the UI pane 40 up or back along the z-axis.
- Figure 3 illustrates example logic which may be executed by the processor 16 responsive to the above-described structure.
- the processor 16 presents the Ul pane 40 in the graphics plane of the display device 12, as shown in Figure 2.
- the processor receives a "move up” or “move back” command as described above and in response alters the disparity " ⁇ " of either the video content images 36, 38 or, if the Ul. pane 40 is presented in 3D, the disparity " ⁇ " between the two images 40a, 40b of the Ul presented in the graphics plane.
- the processor 16 reduces, by 5%, the disparity between the two images by moving one of the images closer to the other along the x-axis by an amount of 5% of the total range of disparity or less preferably by moving both images toward each other by an amount of 2.5% of the total range of disparity.
- the processor 16 increase, by 5%, the disparity between the two images by moving one of the images away from the other along the x-axis by an amount of 5% of the total range of disparity or less preferably by moving both images away each other by an amount of 2.5% of the total range of disparity. Additional clicks cause the processor to decrease (or increase) the disparity responsive to the user input.
- the processor 16 can, responsive to a user "move back" comraand discussed above, increase the alpha blending of one of the two content images 36, 38. As understood herein, this reduces the 3D effect while graphics are being shown, alleviating eye strain while trying to view graphics in a 3D display.
- Yet another way to reduce eye strain when viewing graphics in a 3D display is to increase the width of the Ul pane 40 (i.e., in the x-dimension).
- the border area of the Ul pane 40 may have an opacity gradient, so the transition is made as smooth as possible.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Controls And Circuits For Display Device (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- User Interface Of Digital Computer (AREA)
- Processing Or Creating Images (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180037902.7A CN103620668A (en) | 2010-08-03 | 2011-07-21 | Establishing z-axis location of graphics plane in 3D video display |
EP11815011.9A EP2589228A4 (en) | 2010-08-03 | 2011-07-21 | Establishing z-axis location of graphics plane in 3d video display |
JP2013523184A JP2013540378A (en) | 2010-08-03 | 2011-07-21 | Setting the Z-axis position of the graphic surface of the 3D video display |
BR112013002561A BR112013002561A2 (en) | 2010-08-03 | 2011-07-21 | video display device, television to display 3d video content, and, handset |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/849,167 | 2010-08-03 | ||
US12/849,167 US10194132B2 (en) | 2010-08-03 | 2010-08-03 | Establishing z-axis location of graphics plane in 3D video display |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012018539A2 true WO2012018539A2 (en) | 2012-02-09 |
WO2012018539A3 WO2012018539A3 (en) | 2013-07-25 |
Family
ID=45555865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2011/044801 WO2012018539A2 (en) | 2010-08-03 | 2011-07-21 | Establishing z-axis location of graphics plane in 3d video display |
Country Status (7)
Country | Link |
---|---|
US (1) | US10194132B2 (en) |
EP (1) | EP2589228A4 (en) |
JP (1) | JP2013540378A (en) |
CN (1) | CN103620668A (en) |
BR (1) | BR112013002561A2 (en) |
TW (1) | TWI501646B (en) |
WO (1) | WO2012018539A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201419438D0 (en) * | 2014-10-31 | 2014-12-17 | Microsoft Corp | Modifying video call data |
CN107835403B (en) | 2017-10-20 | 2020-06-26 | 华为技术有限公司 | Method and device for displaying with 3D parallax effect |
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EP1739980A1 (en) | 2005-06-30 | 2007-01-03 | Samsung SDI Co., Ltd. | Stereoscopic image display device |
US20100021141A1 (en) | 2008-07-24 | 2010-01-28 | Panasonic Corporation | Play back apparatus, playback method and program for playing back 3d video |
US20100074594A1 (en) | 2008-09-18 | 2010-03-25 | Panasonic Corporation | Stereoscopic video playback device and stereoscopic video display device |
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2010
- 2010-08-03 US US12/849,167 patent/US10194132B2/en not_active Expired - Fee Related
-
2011
- 2011-05-27 TW TW100118662A patent/TWI501646B/en not_active IP Right Cessation
- 2011-07-21 WO PCT/US2011/044801 patent/WO2012018539A2/en active Application Filing
- 2011-07-21 JP JP2013523184A patent/JP2013540378A/en active Pending
- 2011-07-21 EP EP11815011.9A patent/EP2589228A4/en not_active Ceased
- 2011-07-21 BR BR112013002561A patent/BR112013002561A2/en not_active Application Discontinuation
- 2011-07-21 CN CN201180037902.7A patent/CN103620668A/en active Pending
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EP1739980A1 (en) | 2005-06-30 | 2007-01-03 | Samsung SDI Co., Ltd. | Stereoscopic image display device |
US20100021141A1 (en) | 2008-07-24 | 2010-01-28 | Panasonic Corporation | Play back apparatus, playback method and program for playing back 3d video |
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Title |
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Also Published As
Publication number | Publication date |
---|---|
WO2012018539A3 (en) | 2013-07-25 |
TW201215133A (en) | 2012-04-01 |
CN103620668A (en) | 2014-03-05 |
US10194132B2 (en) | 2019-01-29 |
BR112013002561A2 (en) | 2016-05-31 |
US20120033052A1 (en) | 2012-02-09 |
EP2589228A2 (en) | 2013-05-08 |
TWI501646B (en) | 2015-09-21 |
EP2589228A4 (en) | 2015-08-26 |
JP2013540378A (en) | 2013-10-31 |
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