US 2009/0022222 A1 · METHOD AND DEVICE FOR MULTI-VIEW ENCODING/DECODING USING DISPARITY VECTOR

Abstract

A method of obtaining a disparity vector and its encoding/decoding in the multi-view coding process is disclosed. The present invention includes essentially: determining a disparity vector between two views during the multi-view image coding, and computing a disparity vector between the other two views according to the disparity vector between the two views and the known relative location information between each of the views. Thereafter, the disparity vector is used for multi-view encoding/decoding. The present invention further makes use of the correlation between the disparity vector and depth information of the spatial vector on one hand, and on the other hand makes use of the direct relationship between the disparity vector and the location of each of the cameras. It is experimentally proved that the disparity vector between several views can be accurately computed during the multi-view coding, thereby improving the performance of multi-view coding.

Claims23

Dependent claims

A multi-view encoding method, comprising:

encoding views according to disparity vectors between the views;
acquiring location parameter information for cameras corresponding to the views, which represent locations of the cameras;
encoding the location parameter information;
and
writing the encoded location parameter information to a bitstream.

2 more elements

A multi-view decoding method, comprising:

receiving a bitstream;
obtaining location parameter information for cameras in the bitstream;
determining disparity vectors between views according to the location parameter information;
and
decoding the views by using the disparity vectors.

2 more elements

A multi-view encoding device arranged at an encoding end, comprising:

a camera parameter acquisition unit, configured to acquire location parameter information for cameras corresponding to views, which represent locations of the cameras;
a camera parameter encoding unit, configured to encode the location parameter information and writing the encoded the location parameter information to a bitstream;
and
an encoding operation unit, configured to encode the encoding views according to the location parameter information acquired by the camera parameter acquisition unit, and outputting the encoded bitstream.

1 more element

A multi-view decoding device arranged at a decoding end, comprising:

a camera parameter decoding unit, configured to receive and decode a bitstream transmitted from an encoding end and acquire location parameter information for cameras in the bitstream;
a disparity vector determination unit, configured to calculate and determine disparity vectors between views, according to the location parameter information for cameras which is decoded and acquired by the camera parameter decoding unit;
and
a decoding unit, configured to decode the received bitstream, according to the disparity vector determined by the disparity vector determination unit.

1 more element

Dependencies are inferred from the claim text.

Method and device for multi-view encoding/decoding using disparity vector

Life of this patent

Method and device for multi-view encoding/decoding using disparity vector

Life of this patent

Abstract

Claims23