Scalable Video Coding Using Multiple Coding Technologies
Techniques for video decoding include decoding a base layer of a first video coding technology and at least one enhancement layer conforming to a second video coding technology. The video coding technologies can be identified in a Dependency Parameter Set. Techniques for video encoding include encoding a base layer in a first video coding technology, at least one enhancement layer in a second video coding technology. Also disclosed are video communication systems using base and enhancement layer.
1 . A method for decoding video encoded in a base layer and at least one enhancement layer, comprising:
decoding at least one first sample of at least a first picture coded in a base layer encoded in accordance with a first video coding technology; and
decoding at least one second sample of at least a second picture coded in an enhancement layer encoded in accordance with a second video coding technology;
wherein the decoding of the at least one second sample comprises predicting the at least one second sample from the decoded at least one first sample;
wherein the first video coding technology is different from the second video coding technology.
2 . The method of claim 1 , wherein the first video coding technology comprises encoding which complies with a first video compression standard.
3 . The method of claim 1 , wherein the second video coding technology comprises encoding which complies with a second video compression standard, said second video compression standard being different than the first video compression standard.
4 . The method of claim 2 , wherein the first video compression standard comprises H.264.
5 . The method of claim 2 , wherein the first video compression standard comprises MPEG-2.
6 . The method of claim 3 , wherein the second video compression standard comprises a scalable extension to HEVC.
7 . The method of claim 1 , wherein the predicting of the at least one second sample comprises upsampling of the at least one first sample to form a predictor for the at least one second sample.
8 . The method of claim 1 , wherein the predicting of the at least one second sample comprises creating upscaled side information by the decoding of the at least one first sample.
9 . The method of claim 8 , wherein the upscaled side information comprises at least one motion vector.
10 . The method of claim 1 , wherein the first coding technology comprises technology identified in a Dependency Parameter Set.
11 . The method of claim 1 , wherein the second coding technology comprises technology identified in a Dependency Parameter Set.
12 . A method for encoding video in a base layer and at least one enhancement layer, comprising:
encoding at least one first sample of at least a first picture in the base layer in accordance with a first video coding technology; and
encoding at least one second sample of at least a second picture in the enhancement layer in accordance with a second video coding technology;
wherein the encoding of the at least one second sample comprises predicting the at least one second sample from the reconstructed encoded at least one first sample;
wherein the first video coding technology is different from the second video coding technology.
13 . The method of claim 12 , wherein the first video coding technology comprises encoding which complies with a first video compression standard.
14 . The method of claim 12 , wherein the second video coding technology comprises encoding which complies with a second video compression standard, said second video compression standard being different than the first video compression standard.
15 . The method of claim 13 , wherein the first video compression standard comprises H.264.
16 . The method of claim 13 , wherein the first video compression standard comprises MPEG-2.
17 . The method of claim 14 , wherein the second video compression standard comprises a scalable extension to HEVC.
18 . The method of claim 12 , wherein the predicting of the at least one second sample comprises upsampling of the at least one first sample to form a predictor for the at least one second sample.
19 . The method of claim 12 , wherein the predicting of the at least one second sample comprises creating upscaled side information from the reconstruction of the encoded at least one first sample.
20 . The method of claim 19 , wherein the upscaled side information comprises at least one motion vector.
21 . The method of claim 12 , wherein the first coding technology comprises technology identified in a Dependency Parameter Set.
22 . The method of claim 12 , wherein the second coding technology comprises technology identified in a Dependency Parameter Set.
23 . A system for video decoding comprising:
a decoder configured to:
decode at least one first sample of at least a first picture coded in a base layer encoded in accordance with a first video coding technology; and
decode at least one second sample of at least a second picture coded in an enhancement layer encoded in accordance with a second video coding technology,
further configured to: predict the at least one second sample from the decoded at least one first sample,
wherein the first video coding technology is different from the second video coding technology.
24 . The system of claim 23 , wherein the first video coding technology comprises encoding which complies with a first video compression standard.
25 . The system of claim 23 , wherein the second video coding technology comprises encoding which complies with a second video compression standard, said second video compression standard being different than the first video compression standard.
26 . The system of claim 24 , wherein the first video compression standard comprises H.264.
27 . The system of claim 25 , wherein the first video compression standard comprises MPEG-2.
28 . The system of claim 26 , wherein the second video compression standard comprises a scalable extension to HEVC.
29 . The system of claim 23 , wherein the decoder is further configured to: upsample the at least one first sample to form a predictor for the at least one second sample.
30 . The system of claim 23 , wherein the decoder is further configured to: create upscaled side information by the decoding of the at least one first sample.
31 . The system of claim 30 , wherein the upscaled side information comprises at least one motion vector.
32 . The system of claim 23 , wherein the first coding technology comprises technology identified in a Dependency Parameter Set.
33 . The system of claim 23 , wherein the second coding technology comprises technology identified in a Dependency Parameter Set.
34 . A system for video encoding comprising:
an encoder configured to:
encode at least one first sample of at least a first picture in a base layer encoded in accordance with a first video coding technology; and
encode at least one second sample of at least a second picture in an enhancement layer encoded in accordance with a second video coding technology,
further configured to: predict the at least one second sample from the encoded at least one first sample,
wherein the first video coding technology is different from the second video coding technology.
35 . The system of claim 34 , wherein the first video coding technology comprises encoding which complies with a first video compression standard.
36 . The system of claim 34 , wherein the second video coding technology comprises encoding which complies with a second video compression standard, said second video compression standard being different than the first video compression standard.
37 . The system of claim 35 , wherein the first video compression standard comprises H.264.
38 . The system of claim 36 , wherein the first video compression standard comprises MPEG-2.
39 . The system of claim 37 , wherein the second video compression standard comprises a scalable extension to HEVC.
40 . The system of claim 34 , wherein the encoder is further configured to: upsample the at least one first sample to foul a predictor for the at least one second sample.
41 . The system of claim 34 , wherein the encoder is further configured to: create upscaled side information from the reconstruction of the encoded at least one first sample.
42 . The system of claim 41 , wherein the upscaled side information comprises at least one motion vector.
43 . The system of claim 34 , wherein the first coding technology comprises technology identified in a Dependency Parameter Set.
44 . The system of claim 34 , wherein the second coding technology comprises technology identified in a Dependency Parameter Set.
45 . A system for video transmission comprising:
at least one sending endpoint comprising a base layer encoder, an enhancement layer encoder, and a first capability negotiation module;
at least one receiving endpoint comprising a base layer decoder, an enhancement layer decoder, and a second capability negotiation module, the at least one receiving endpoint being coupled to the at least one sending endpoint;
wherein:
the base layer encoder and decoder are configured to code or decode, respectively, in compliance with a first video coding technology;
the enhancement layer encoder and decoder are configured to code or decode, respectively, in compliance with a second different video coding technology; and
the first capability negotiation module is configured to interact with the second capability negotiation module to negotiate a capability that utilizes all base layer encoder, base layer decoder, enhancement layer encoder, and enhancement layer decoder.
46 . The system of claim 45 , further comprising a CVCS coupled to the at least one receiving endpoint.
47 . A non-transitory computer readable medium comprising a set of instructions to direct a processor to perform the methods of one of claims 1 - 44 .