Compatible stereoscopic video delivery

Patent metadata

Field	Value
Publication number	US-9912931-B1
Application number	US-201715808675-A
Country	US
Kind code	B1
Filing date	Nov 9, 2017
Priority date	Jul 20, 2008
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

First claim

What is claimed is:

1. A non-transitory computer-readable storage medium having stored thereon computer-executable instructions for executing with one or more processors to perform:
receiving a compressed bitstream comprising a sequence of coded frames, wherein a coded frame in the sequence of frames comprises samples of a first image and samples of a second image multiplexed in a monoscopic video format, wherein the monoscopic video format is determined using SEI messaging in the compressed bitstream;
decoding with the processor the coded frame to generate a decoded frame;
demultiplexing with the processor based on the monoscopic video format the decoded frame to generate decoded samples of the first image and decoded samples of the second image, wherein the decoded samples of the first image and the second image are arranged in accordance with the monoscopic video format in a checkerboard pattern wherein “black” pixels in the checkerboard pattern comprise sampled pixels of the first image and “white” pixels in the checkerboard pattern comprise sampled pixels of the second image, wherein
sampling the “black” pixels of the first image comprises:

on even rows, sampling only the even columns of the first image, and on odd rows sampling only the odd columns of the first image, and
sampling the “white” pixels of the second image comprises:

on even rows, sampling only the odd columns of the second image, and
on odd rows sampling only the even columns of the second image;
upsampling with the processor the decoded samples of the first image to generate a first output image; and
upsampling with the processor the decoded samples of the second image to generate a second output image.

2. The non-transitory computer-readable storage medium of claim 1 , wherein the first image and the second image represent two views of a stereoscopic image.

3. The non-transitory computer-readable storage medium of claim 1 , wherein the coded frame is encoded according to at least one of a Blu-Ray compatible video format, a DVD compatible format, an MPEG format, and an ATSC compatible video format.

4. The non-transitory computer-readable storage medium of claim 1 , wherein the monoscopic video format alternates between a first and a second multiplexed format, wherein under the first multiplexed format the first output image represents a left view of a stereoscopic image and the second output image represents a right view of the stereoscopic image and under the second multiplexed format the first output image represents the right view of the stereoscopic image and the second output image represents the left view of the stereoscopic image.

Assignees

• Dolby Laboratories Licensing Corp

Inventors

• Husak Walter J
• Ruhoff David
• Tourapis Alexandros
• Leontaris Athanasios

Classifications

• H04N19/60

  using transform coding · CPC title

• H04N13/161 Primary

  Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597) · CPC title

• H04N19/59

  involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution · CPC title

• H04N13/139

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

• H04N13/194

  Transmission of image signals · CPC title