VIDEO CODING
First Claim
1. A method of encoding a video signal representing a sequence of pictures to form an encoded video signal, the method comprising:
- generating an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator for providing an indication of a type of error concealment algorithm, said indication to be used as the basis for choosing, in a corresponding decoding process, a particular error concealment algorithm of the type indicated; and
providing the error concealment algorithm type indicator, for use in the corresponding decoding process, separate from an indication of an encoding mode for the picture.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of encoding a video signal representing a sequence of pictures, the method comprising comparing a first picture with a second picture, calculating a measure of the similarity between the first and the second pictures, comparing the measure of similarity with a predetermined criterion of similarity and, when the measure of similarity does not meet the predetermined criterion of similarity, outputting an indicator indicating that a non-temporally predictive error concealment method should be used by a subsequent decoder and, when the measure of similarity meets the predetermined criterion of similarity, outputting an indicator indicating that a temporally predictive error concealment method should be used by a subsequent decoder.
-
Citations
32 Claims
-
1. A method of encoding a video signal representing a sequence of pictures to form an encoded video signal, the method comprising:
-
generating an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator for providing an indication of a type of error concealment algorithm, said indication to be used as the basis for choosing, in a corresponding decoding process, a particular error concealment algorithm of the type indicated; and providing the error concealment algorithm type indicator, for use in the corresponding decoding process, separate from an indication of an encoding mode for the picture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An apparatus for encoding a video signal representing a sequence of pictures to form an encoded video signal, the apparatus being configured to:
-
generate an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator for providing an indication of a type of error concealment algorithm, said indication to be used as the basis for choosing, in a corresponding decoding process, a particular error concealment algorithm of the type indicated; and provide the error concealment algorithm type indicator, for use in the corresponding decoding process, separate from an indication of an encoding mode for the picture. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A portable radio communications device including at least one of an apparatus for encoding a video signal representing a sequence of pictures to form an encoded video signal and an apparatus for decoding an encoded video signal representing a sequence of pictures, the apparatus for encoding a video signal being configured to:
-
generate an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator for providing an indication of a type of error concealment algorithm, said indication to be used as the basis for choosing, in a corresponding decoding process, a particular error concealment algorithm of the type indicated; and provide the error concealment algorithm type indicator, for use in the corresponding decoding process, separate from an indication of an encoding mode for the picture, and the apparatus for decoding an encoded video signal being configured to; receive an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator being separate from an indication of an encoding mode for the picture; use the received error concealment algorithm type indicator as the basis for choosing a particular error concealment algorithm of the type indicated; and apply the chosen error concealment algorithm to conceal an error in the picture or said part thereof.
-
-
30. An apparatus for encoding a video signal representing a sequence of pictures to form an encoded video signal, the apparatus comprising one or more functional units for:
-
generating an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator for providing an indication of a type of error concealment algorithm, said indication to be used as the basis for choosing, in a corresponding decoding process, a particular error concealment algorithm of the type indicated; and providing the error concealment algorithm type indicator, for use in the corresponding decoding process, separate from an indication of an encoding mode for the picture.
-
-
31. An apparatus for encoding a video signal representing a sequence of pictures to form an encoded video signal, the apparatus comprising a processor configured to control:
-
generation of an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator for providing an indication of a type of error concealment algorithm, said indication to be used as the basis for choosing, in a corresponding decoding process, a particular error concealment algorithm of the type indicated; and provision of the error concealment algorithm type indicator, for use in the corresponding decoding process, separate from an indication of an encoding mode for the picture.
-
-
32. An apparatus for decoding an encoded video signal representing a sequence of pictures, the apparatus comprising a processor configured to control:
-
reception of an error concealment algorithm type indicator for a picture or a part thereof, the error concealment algorithm type indicator being separate from an indication of an encoding mode for the picture; choice of a particular error concealment algorithm of a type indicated by the received error concealment algorithm type indicator; and application of the chosen error concealment algorithm to conceal an error in the picture or said part thereof.
-
Specification