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Method, device and system for controlling display of graphic text in three-dimensional television

A technology of graphic text and control equipment, which is applied in the field of television, can solve problems such as blurred graphic text, affecting user experience, and poor display quality of graphic text, so as to achieve the effect that the display quality does not deteriorate

Active Publication Date: 2011-07-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor has found in practice that in 3D TV, if the above method is still used, the user feels that the graphic text is displayed on the screen through special 3D glasses or a special 3D display screen, etc., when the graphic text is displayed on the screen. Partially intersects with the projection area of ​​the video on the screen, and the user feels that the video is displayed in front of the screen through special 3D glasses or a special 3D display screen, etc., the display quality of graphics and text will deteriorate, such as figure 1 Graphical text that intersects the projected area of ​​the video on the screen becomes blurred, affecting user experience

Method used

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  • Method, device and system for controlling display of graphic text in three-dimensional television
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  • Method, device and system for controlling display of graphic text in three-dimensional television

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Embodiment 1

[0047] In the first embodiment, the server may transmit the depth indication information in the 3D video code stream, where the depth indication information is image layer offset information. The specific method is to define a supplementary enhancement information (SEI) information, the SEI information includes the above-mentioned depth indication information; and transmit the SEI information as a part of the three-dimensional video code stream.

[0048] Among them, the specific definition of SEI information is shown in Table 1 below, which includes:

[0049] (1) Graphics_plane_shift_cancel_flag: used to indicate whether a horizontal offset is required when the graphic text is displayed in conjunction with the current left and right video frames;

[0050] (2) Graphics_shift_Plane_amount: used to indicate the horizontal offset when the graphic text is displayed in conjunction with the current left and right video frames;

[0051] Table 1

[0052]

[0053]

[0054] The flo...

Embodiment 2

[0068] In the second embodiment, the server may transmit the depth indication information in the graphic text code stream, where the depth indication information is image layer offset information. Wherein, the graphic text code stream may adopt a real-time text (Timed Text) standard defined by a third generation partnership project (3rd Generation Partnership Project, 3GPP).

[0069] It is stipulated in the real-time text standard that the code stream conforming to the real-time text standard includes a Track Header Box (track header box) and a Sample Entry Box (sample entry box). Define an area in the Track Header Box, all Text Samples (text samples) must be displayed in this area; then use the class BoxRecord (box record) in the Sample Entry Box to indicate the display position of the specific Text Sample.

[0070] In the second embodiment, the 3GPP real-time text standard is extended, and a new class GraphicsPlaneShiftRecord (image layer shift information record) is defined...

Embodiment 3

[0077] In the third embodiment, the server may transmit the depth indication information in the EPG metadata, where the depth indication information is image layer offset information. After receiving the EPG metadata, the terminal can obtain depth indication information from the EPG metadata, and then control the depth position of the graphic text display.

[0078] In the third embodiment, the EPG metadata includes channel EPG metadata, live broadcast EPG metadata, and on-demand program EPG metadata. Among them, the XML elements of the defined EPG metadata include: broadcast discovery records, live program fragments, and on-demand program fragments.

[0079] In the third embodiment, the server can extend any one of the above three XML elements to add a sub-element GraphicsPlaneShift (image layer offset information), wherein GraphicsPlaneShift includes Graphics Plane Shift Amount (horizontal offset) information ,As follows.

[0080]

[0081]

[0082]

[0083]

[0084] ...

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Abstract

The embodiment of the invention discloses a method, device and system for controlling display of a graphic text in a three-dimensional television, relating to the technical field of televisions and being used for controlling the depth position of the display of the graphic text, wherein the method comprises the steps of: receiving a message carrying depth indication information, wherein the depthindication information is sent by a server and used for indicating the depth position of the display of the graphic text in a three-dimensional view; obtaining the depth indication information from the message carrying the depth indication information; and controlling the depth position of the display of the graphic text according to the depth indication information. The embodiment of the invention can be used for controlling the depth position of the display of the graphic text to ensure that the graphic text can be displayed in front of video and the display quality does not become bad.

Description

technical field [0001] The invention relates to the technical field of television, in particular to a control method, equipment and system for graphic text display in a three-dimensional television. Background technique [0002] Graphic text is an integral part of the television system. Wherein, the graphic text may be an electronic program guide (Electronic Program Guide, EPG), subtitles, messages, and the like. In 2D TV, the method of graphic text display is as follows: the video is displayed on the video layer, the graphic text is displayed on the image layer, and the image layer is overlaid on the video layer, and according to the position information indicated by the graphic code stream itself or the position configured by default The information controls where the graphic text is displayed in the 2D view. [0003] The inventor has found in practice that in 3D TV, if the above method is still used, the user feels that the graphic text is displayed on the screen throug...

Claims

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Application Information

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IPC IPC(8): H04N13/00H04N5/445
CPCH04N13/004H04N13/0007H04N13/0066H04N13/007H04N13/0022H04N13/156H04N13/183H04N13/128H04N13/178H04N13/106
Inventor 张园园石腾张楚雄
Owner HUAWEI TECH CO LTD
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