Switching between 3D video and 2D video

Patent metadata

Field	Value
Publication number	US-9924154-B2
Application number	US-201013386687-A
Country	US
Kind code	B2
Filing date	Jul 21, 2010
Priority date	Jul 27, 2009
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A three dimensional [3D] video signal is processed in a video device ( 50 ). The device has generating means ( 52 ) for generating an output signal for transferring the video data via a high-speed digital interface like HDMI to a 3D display, which selectively generate a 3D display signal for displaying the 3D video data on a 3D display operative in a 3D mode, a 2D display signal for displaying 2D video data on the 3D display operative in a 2D mode, or a pseudo 2D display signal by including 2D video data in the output signal for displaying the 2D video data on the 3D display operative in the 3D mode. Processing means ( 53 ) detect a request to display 2D video data on the 3D display, while the 3D display is operative in the 3D mode, and, in response to the detection, the generating means are set to generate the pseudo 2D display signal for maintaining the 3D mode of the 3D display.

First claim

The invention claimed is:

1. A video device for processing a video signal, the video device comprising:
an input circuit arranged to receive the video signal and retrieve video data, wherein the video data comprises three-dimensional video data and/or two-dimensional video data;
wherein the three-dimensional video data comprises sufficient information to enable construction of stereoscopic images, and the two-dimensional video data does not provide sufficient information to enable construction of stereoscopic images;
wherein the three-dimensional video data provides a single sequence of three-dimensional images, and the two-dimensional video data provides a single sequence of two-dimensional images;
a generating circuit arranged to generate an output signal,
wherein the output signal transfers the video data via a high-speed digital interface to a three-dimensional display,
wherein the generating circuit selectively performs each of the following:
generates a three-dimensional display signal for displaying the three-dimensional video data on the three-dimensional display operative in a three-dimensional mode,
generates a two-dimensional display signal for displaying the two-dimensional video data on the three-dimensional display operative in a two-dimensional mode, and
generates a pseudo two-dimensional display signal by including the two-dimensional video data in the output signal in the format of a three-dimensional signal to enable the two-dimensional video data to be displayed on the three-dimensional display operative in the three-dimensional mode; and

a processor circuit that detects a transition signal for transitioning from the three-dimensional mode to a pseudo two-dimensional mode to display two-dimensional video data on the three-dimensional display, and
in response to the transition signal, setting the generating circuit to generate the pseudo two-dimensional display signal from the two-dimensional video signal to maintain the three-dimensional mode of the three-dimensional display, thereby enabling a continuous viewing of the sequence of three-dimensional images followed by the sequence of two-dimensional images, without visual anomalies.

2. The device of claim 1 , wherein the generating circuit, while generating the pseudo two-dimensional display signal, also generates the two-dimensional video data by deriving image data without three-dimensional information from the three-dimensional video data.

3. The device of claim 2 , wherein the generating circuit, when transitioning between the three-dimensional mode and the pseudo two-dimensional mode, applies a three-dimensional offset to the two-dimensional video data for changing the amount of three-dimensional information displayed.

4. The device of claim 1 , wherein the processor circuit, in the pseudo two-dimensional mode, combines graphical data and video data by positioning the graphical data in depth direction in front of the two-dimensional video data by applying an offset to the graphical data to generate a left view and a right view.

5. The device of claim 3 , wherein the generating circuit applies the three-dimensional offset gradually for gradually changing the amount of three-dimensional information.

6. The device of claim 5 , wherein the generating circuit non-linearly stretches the two-dimensional video during said application of the three-dimensional offset for covering blank parts of the three-dimensional display signal, wherein the blank parts are due to said application of the three-dimensional offset.

7. The device of claim 1 , wherein the processor circuit, while the generating circuit generates the pseudo two-dimensional display signal, detects that rendering the three-dimensional video data has ended, and, in response to the detection, setting the generating circuit to generate the two-dimensional display signal.

8. The device of claim 1 , wherein the input circuit retrieves, from the three-dimensional video signal, a switching indicator, the switching indicator being indicative of a two-dimensional mode to be selected, and the processor circuit, when detecting the transition signal to display two-dimensional video data, sets the generating circuit to generate the output signal in dependence on the switching indicator to either the two-dimensional display signal or the pseudo two-dimensional display signal.

9. The device of claim 1 , wherein the input circuit includes a record carrier reader for reading a record carrier for receiving the three-dimensional video signal.

10. A method of processing a video signal, the method comprising:
receiving the video signal and retrieving video data, wherein the video data comprises three-dimensional video data and/or two-dimensional video data;
wherein the three-dimensional video data comprises sufficient information to enable construction of stereoscopic images, and the two-dimensional video data does not provide sufficient information to enable construction of stereoscopic images;
wherein the three-dimensional video data provides a single sequence of three-dimensional images, and the two-dimensional video data provides a single sequence of two-dimensional images;
generating an output signal for transferring the video data via a high-speed digital interface to a three-dimensional display, wherein the generating selectively performs each of the following:
generating a three-dimensional display signal for displaying the three-dimensional video data on the three-dimensional display operative in a three-dimensional mode,
generating a two-dimensional display signal for displaying two-dimensional video data on the three-dimensional display operative in a two-dimensional mode,
generating a pseudo two-dimensional display signal by including two-dimensional video data in the output signal in the format of a three-dimensional signal to enable the two-dimensional video data to be displayed on the three-dimensional display operative in the three-dimensional mode; and

detecting a transition signal for transitioning from the three-dimensional mode to a pseudo two-dimensional mode; and,
in response to the transition signal, selecting the generating to generate the pseudo two-dimensional display signal from the video data to maintain the three-dimensional mode of the three-dimensional display, thereby enabling a continuous viewing of the sequence of three-dimensional images followed by the sequence of two-dimensional images, without visual anomalies.

11. The method as claimed in claim 10 ,
wherein the generating includes a switching indicator in the three-dimensional video signal,
wherein the switching indicator indicates a two-dimensional mode to be selected,
wherein detecting the transition signal to display two-dimensional video data generates the output signal in dependence on the switching indicator to either the two-dimensional mode or the pseudo two-dimensional mode.

12. The method as claimed in claim 11 , wherein the method further comprises the step of manufacturing a record carrier, wherein the record carrier is provided with a track of marks representing the three-dimensional video signal.

13. A computer-readable, non-transitory medium having stored therein instructions for causing a processing circuit to execute a method for processing a video signal, the medium comprising code for:
receiving the video signal and retrieving video data, wherein the video data comprises three-dimensional video data and/or two-dimensional video data;
wherein the three-dimensional video data comprises sufficient information to enable construction of stereoscopic images, and the two-dimensional video data does not provide sufficient informatio

Assignees

• Newton Philip Steven
• Bruls Wilhelmus Hendrikus Alfonsus
• De Haan Wiebe
• Talstra Johan Cornelis
• Moll Hendrik Frank
• Koninklijke Philips Nv

Inventors

• Newton Philip Steven
• Bruls Wilhelmus Hendrikus Alfonsus
• De Haan Wiebe
• Talstra Johan Cornelis
• Moll Hendrik Frank

Classifications

• H04N13/398

  Synchronisation thereof; Control thereof · CPC title

• H04N13/194 Primary

  Transmission of image signals · CPC title

• H04N13/359

  Switching between monoscopic and stereoscopic modes · CPC title

• H04N13/139

  Format conversion, e.g. of frame-rate or size · CPC title

• H04N13/0497

  Electricity · mapped topic