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Method and apparatus for authoring stereoscopic 3d video information, and method and apparatus for displaying such stereoscopic 3D video information

A 3D video and stereo 3D technology, applied in stereo systems, image communication, instruments, etc., can solve problems such as unpleasant viewing experience for users

Inactive Publication Date: 2014-01-08
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In such conflict areas, the user's viewing experience may be unpleasant

Method used

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  • Method and apparatus for authoring stereoscopic 3d video information, and method and apparatus for displaying such stereoscopic 3D video information
  • Method and apparatus for authoring stereoscopic 3d video information, and method and apparatus for displaying such stereoscopic 3D video information
  • Method and apparatus for authoring stereoscopic 3d video information, and method and apparatus for displaying such stereoscopic 3D video information

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Embodiment Construction

[0041] figure 1 is a graph showing the depth Z of the stereoscopic 3D primary video stream VS over time t. In addition, the depth of the rendering range of the overlay graphic OD is shown by the dashed area. Although the minimum depth value Zv,min(t) and the maximum depth value Zv,max(t) of the video stream VS vary over time, the depth range used to render the overlay OD is constant over time. The depth range for rendering the overlay pattern OD starts at the depth Zref representing the depth value of the reference plane in z-space and ends at the minimum value Zcomfort,min of the comfort zone. In general, the rendering of video information is preferably located around the screen depth Zscreen. Preferably, the 3D video information is located inside a comfort zone defined by its minimum depth Zcomfort,min and its maximum depth Zcomfort,max in z-space.

[0042] The comfort zone needs to take into account aspects of an enjoyable 3D viewing experience. The boundaries of the co...

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Abstract

Method, Reproduction Apparatus and System for Display of Stereoscopic 3D Video Information A method for displaying stereoscopic 3D video information comprising a 3D video stream and 3D overlay graphics, the method comprising the steps of: setting an initial reference plane to a certain point in z-space, wherein the 3D overlay graphics are displayed in a depth interval in z-space ranging from the reference plane to an upper threshold facing a viewer, determining a depth range in z-space for the stereoscopic display of the 3D video stream for a plurality of time codes, determining whether a depth conflict between the reference plane and the 3D video stream exists for the respective time codes, wherein a depth conflict is existing if the depth in z-space for any feature of the 3D video stream conflicts with the reference plane in z-space, determining a set of conflict intervals defined by the respective time codes for which a depth conflict exists, handing over the set of conflict intervals to a reproduction device, and adapting the reproduction of the 3D video stream or the 3D overlay graphics for time codes of the 3D video stream that are located in one of the conflict intervals so as to resolve the depth conflict between display of the 3D video stream and the reference plane.

Description

technical field [0001] The present invention relates to a method and apparatus for creating stereoscopic 3D video information comprising 3D video streams and 3D overlay graphics. Furthermore, the invention relates to a method and a device for displaying such stereoscopic three-dimensional video information. Background technique [0002] With the recent box-office success of stereoscopic 3D movies, there is also hope to bring 3D video to home entertainment. One of the first available solutions was the Blu-ray 3D format. Preferably, the 3D movie is displayed inside what is called the comfort zone. The identification of comfort zones remains an active area of ​​research. In general, the comfort zone describes an interval in z-space extending from somewhere behind the screen to a minimum distance from the viewer in front of the screen. One option for determining this comfort zone is the so-called 1 / 3 diopter rule. Furthermore, the extent of this comfort zone according to th...

Claims

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Application Information

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IPC IPC(8): H04N13/00H04N13/02H04N13/04
CPCH04N13/007H04N13/0456G06T15/00H04N13/0033H04N2213/002H04N13/0066H04N13/004H04N13/0292H04N13/144H04N13/156H04N13/178H04N13/183H04N13/293H04N13/361H04N13/00
Inventor J.霍尔伦特鲁普
Owner THOMSON LICENSING SA