US 2015/0312547 A1Published application

Apparatus and method for generating and rebuilding a video stream

AssigneesRai Radiotelevisione Italiana S.P.A., S.I.Sv.El Societa' Italiana Per Lo Sviluppo Dell'elettronica S.P.A.

InventorMaria Giovanna Cucca

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Abstract

Apparatus (1) for generating a video stream includes a communication interface (10) for receiving as input; one or more images of a first input sequence (L) of images representative of a first view of an input stereoscopic stream (VIN); one or more images of a second input sequence (R) of images, each corresponding to a respective image of the first input sequence (L), the images of the second input sequence (R) being representative of a second view of the input stereoscopic stream (VIN); one or more maps which allow, starting from one or more images of the first input sequence (L), to substantially rebuild corresponding images of the second input sequence (R); one or more maps which allow, starting from one or more images of the second input sequence (R), to substantially rebuild corresponding images of the first input sequence (L). The apparatus (1) further includes a processing unit (11) configured to provide as output an encoded video stream (CVS) comprising at least a first image (L1) of the first input sequence (L), a corresponding first map (D1), a second.

Claims35

Dependent claims

An apparatus for generating a video stream, comprising:

a communication interface for receiving:
one or more images of a first input sequence of images representative of a first view of an input stereoscopic stream;
one or more images of a second input sequence of images, each one corresponding to a respective image of said first input sequence, the images of said second input sequence being representative of a second view of said input stereoscopic stream;
one or more maps which allow, starting from one or more images of said first input sequence, to substantially rebuild corresponding images of said second input sequence;
one or more maps which allow, starting from one or more images of said second input sequence, to substantially rebuild corresponding images of said first input sequence;
a processing unit associated with said communication interface and configured for:
determining a first image of said first input sequence;
determining a first map, so that a first image of said second input sequence can be substantially rebuilt by combining the first image of said first input sequence with said first map;
determining a second image of said second input sequence;
determining a second map, so that a second image of said first input sequence can be substantially rebuilt by combining the second image of said second input sequence with said second map;
outputting a coded video stream comprising at least the first image (L1) of said first input sequence, the first map, the second image of said second input sequence and the second map.

8 more elements

An apparatus for rebuilding a video stream, comprising:

an input interface for receiving a coded video stream comprising at least a first image of a first input sequence, a first map associated with said first image of said first input sequence, a second image of a second input sequence, and a second map associated with said second image of said second input sequence;
an operating module configured for:
rebuilding a first image of said second input sequence as a function of said first image of said first input sequence and of said first map, thereby obtaining a first rebuilt image;
rebuilding a second image of said first input sequence as a function of said second image of said second input sequence and of said second map, thereby obtaining a second rebuilt image;
outputting a decoded stereoscopic video stream comprising a first output sequence including the first image of said first input sequence and said second rebuilt image, and a second output sequence including said first rebuilt image and the second image of said second input sequence,
said first and second output sequences being representative of a first and a second views, respectively, of said decoded stereoscopic video stream.

3 more elements

A method for generating a video stream, comprising:

providing a first input sequence of images representative of a first view of an input stereoscopic stream;
providing a second input sequence of corresponding images representative of a second view of said input stereoscopic stream;
providing one or more maps which allow, starting from one or more images of said first input sequence, to substantially rebuild corresponding images of said second input sequence;
providing one or more maps which allow, starting from one or more images of said second input sequence, to substantially rebuild corresponding images of said first input sequence;
determining a first image of said first input sequence;
determining a first map, so that a first image of said second input sequence can be substantially rebuilt by combining the first image of said first input sequence with said first map;
determining a second image of said second input sequence;
determining a second map, so that a second image of said first input sequence can be substantially rebuilt by combining the second image of said second input sequence with said second map;
outputting a coded video stream comprising at least the first image of said first input sequence, the first map, the second image of said second input sequence, and the second map.

6 more elements

A method for rebuilding a video stream, comprising:

receiving a coded video stream comprising at least a first image of a first input sequence, a first map associated with said first image of said first input sequence, a second image of a second input sequence, and a second map associated with said second image of said second input sequence;
rebuilding a first image of said second input sequence as a function of said first image of said first input sequence and of said first map, thereby obtaining a first rebuilt image;
rebuilding a second image of said first input sequence as a function of said second image of said second input sequence and of said second map, thereby obtaining a second rebuilt image;
outputting a decoded stereoscopic video stream comprising a first output sequence including the first image of said first input sequence and said second rebuilt image, and a second output sequence including said first rebuilt image and the second image of said second input sequence,
said first and second output sequences being representative of a first and a second views, respectively, of said decoded stereoscopic video stream.

2 more elements

Dependencies are inferred from the claim text.