Method and device for overlaying 3D graphics over 3D video

Inactive Publication Date: 2011-10-13
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0012]The invention is also based on the following recognition. 3D Overlay graphics can no longer simply be composited with the 3D video output in systems outputting frames corresponding tot Left or 2D information interleaved with Right or DOT frames, since the 3D video output switches between the two different video streams each frame. As an example, at time T the video output could contain the 2D frame, and at time T+1 the video output contains accompanying depth information for the frame at time T. The graphics that need to be composited with the video at time T (the 2D graphics) greatly differ from the graphics that need to be composited with the video at time T+1 (the depth graphics or the R graphics). The graphics unit present in 2D video player devices is not fast enough to frame accurately update its graphics plane with these different graphics every frame. The solution according to the invention is to implement two buffers in the graphics unit. Each

Problems solved by technology

The graphics unit present in 2D video player devices is not fast enough to frame

Method used

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  • Method and device for overlaying 3D graphics over 3D video
  • Method and device for overlaying 3D graphics over 3D video
  • Method and device for overlaying 3D graphics over 3D video

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Embodiment Construction

[0020]A system 1 for playback of 3D video information wherein the invention may be practiced is shown in FIG. 1. The system comprises a player device 10 and a display device 11 communicating via an interface 12. The player device 10 comprises a front end unit 12 responsible for receiving and pre-processing the coded video information stream to be displayed, and a processing unit for decoding, processing and generation a video stream to be supplied to the output 14. The display device comprises a rendering unit for rendering 3D views from the received.

[0021]With respect to the coded video information stream, for example this may under the format known as stereoscopic, where left and right (L+R) images are encoded. Alternatively, coded video information stream may comprise a 2D picture and an additional picture (L+D), a so-called depth map, as described in Oliver Sheer-“3D Video Communication”, Wiley, 2005, pages 29-34. The depth map conveys information about the depth of objects in t...

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PUM

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Abstract

A method of decoding and outputting video information suitable for three-dimensional [3D] display, the video information comprising encoded main video information suitable for displaying on a 2D display and encoded additional video information for enabling three-dimensional [3D] display, the method comprising: receiving or generating three-dimensional [3D] overlay information to be overlayed over the video information; buffering a first part of the overlay information to be overlayed over the main video information in a first buffer; buffering a second part of overlay information to be overlayed over the additional video information in a second buffer; decoding the main video information and the additional video information and generating as a series of time interleaved video frames, each outputted video frame being either main video frame or additional video frame; determining a type of an video frame to be outputted being either a main video frame or an additional video frame; overlaying either first or second part of the overlay information on an video frame to be outputted in agreement with the determined type of frame outputting the video frames and the overlayed information.

Description

FIELD OF THE INVENTION[0001]The invention relates to a method of decoding and outputting video information suitable for three-dimensional [3D] display, the video information comprising encoded main video information suitable for displaying on a 2D display and encoded additional video information for enabling three-dimensional [3D] display, 3D overlay information being overlayed onto the video information.[0002]The invention further relates to a device for decoding and outputting video information suitable for three-dimensional [3D] display, the video information comprising encoded main video information suitable for displaying on a 2D display and encoded additional video information for enabling three-dimensional [3D] display, the device adapted to overlay 3D overlay information onto the video information.[0003]The invention relates to the field playback of 3D video information and 3D overlay information by a playback device, the information to be displayed onto a 3D enabled display...

Claims

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Application Information

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IPC IPC(8): H04N7/26
CPCH04N13/0003H04N13/004H04N19/597H04N13/007H04N13/0048H04N13/156H04N13/161H04N13/183H04N13/189H04N13/10H04N13/00G11B20/00007G11B20/10527G11B27/036G11B2020/00072G11B2020/1062
Inventor NEWTON, PHILIP STEVENKURVERS, MARKUS JOZEF MARIABOLIO, DENNIS DANIEL ROBERT JOZEF
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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