Compatible stereoscopic video delivery

Patent metadata

Field	Value
Publication number	US-10264235-B2
Application number	US-201816044836-A
Country	US
Kind code	B2
Filing date	Jul 25, 2018
Priority date	Jul 20, 2008
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

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 method for decoding a packed image in a sequence of coded images, the method comprising:
by apparatus comprising one or more data processors configured by software, one or more programmable logic devices, one or more logic circuits or a combination thereof:
receiving encoded image data 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 packed together in a monoscopic video format, wherein the monoscopic video format is determined using SEI messaging in the encoded image data;
decoding the coded frame to generate a decoded frame;
unpacking the decoded frame based on the monoscopic video format 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 lattice checkerboard pattern wherein “black” pixels in the lattice pattern comprise sampled pixels of the first image and “white” pixels in the lattice 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 the decoded samples of the first image to generate a first output image; and
upsampling the decoded samples of the second image to generate a second output image.

2. The method of claim 1 , further comprising storing the decoded frame, the first output image and the second output image.

3. The method of claim 1 , further comprising outputting the first output image and the second output image.

4. The method of claim 1 , wherein the first image and the second image represent two views of a stereoscopic image.

5. The method 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.

Assignees

• Dolby Laboratories Licensing Corp

Inventors

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

Classifications

• H04N13/15

  for colour aspects of image signals · CPC title

• H04N19/597

  specially adapted for multi-view video sequence encoding · CPC title

• H04N19/00

  Methods or arrangements for coding, decoding, compressing or decompressing digital video signals · CPC title

• H04N19/59

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

• H04N19/60

  using transform coding · CPC title