CN104053008B - Video coding-decoding method and Video Codec based on composograph prediction - Google Patents
Video coding-decoding method and Video Codec based on composograph prediction Download PDFInfo
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- CN104053008B CN104053008B CN201310083901.7A CN201310083901A CN104053008B CN 104053008 B CN104053008 B CN 104053008B CN 201310083901 A CN201310083901 A CN 201310083901A CN 104053008 B CN104053008 B CN 104053008B
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Abstract
The invention discloses a kind of video coding-decoding methods and Video Codec based on composograph prediction,It is wherein that composograph prediction indication position is arranged in non-basic visual angle according to encoding and decoding computing capability,The value of composograph prediction indication position indicates whether the coding and decoding video for allowing predict based on composograph,The coding and decoding video predicted based on composograph can be enabled if allowing,It needs to deactivate the coding and decoding video predicted based on composograph if not allowing,To can neatly open or close the coding and decoding video predicted based on composograph by the setting of the value of composograph prediction indication position,Video Codec suitable for different computing capabilitys,Video Codec can carry out the coding and decoding video being adapted with itself computing capability,When encoding and decoding computing capability is stronger,Carry out the coding and decoding video predicted based on composograph,When encoding and decoding computing capability is weaker,Without the coding and decoding video predicted based on composograph.
Description
Technical field
The present invention relates to 3D coding and decoding videos and multi-angle video encoding and decoding technique field, more particularly to are based on composograph
The video coding-decoding method and Video Codec of prediction.
Background technology
In next-generation 3 D video encoding and decoding standard, the method based on composograph prediction is adopted by standard.Based on
In the method for composograph prediction, when texture information in the non-basic visual angle (base view) of coding/decoding, need according to basic
Texture information and depth information in visual angle synthesize the texture block in current coding/decoding visual angle；In addition, coding/decoding is non-basic
When depth information in visual angle, need to synthesize the depth in current coding/decoding visual angle according to the depth information in basic visual angle
Block.Above procedure needs many calculate that could complete, and the computing capability of different coder/decoders is different, certain calculating energy
The not strong coder/decoder execution above process of power is more difficult, or even can not execute the above process at all.
Invention content
The embodiment of the present invention provides a kind of method for video coding predicted based on composograph, to be suitable for different calculating
The video encoder of ability, this method include：
Determine the value according to the composograph prediction indication position that coding computing capability is non-basic visual angle setting；
It determines whether regard based on what composograph was predicted according to the value of composograph prediction indication position
Frequency encodes；
If so, carrying out the Video coding predicted based on composograph；Otherwise, it is regarded without what is predicted based on composograph
Frequency encodes；
Wherein, the Video coding based on composograph prediction includes：When encoding the texture information in non-basic visual angle,
According in basic visual angle texture information and depth information synthesize the texture block in present encoding visual angle；Encode non-basic visual angle
In depth information when, the depth block in present encoding visual angle is synthesized according to the depth information in basic visual angle.
The embodiment of the present invention also provides a kind of video encoding/decoding method predicted based on composograph, to be suitable for different meters
The Video Decoder of calculation ability, this method include：
Determine the value according to the composograph prediction indication position that decoding computing capability is non-basic visual angle setting；
It determines whether regard based on what composograph was predicted according to the value of composograph prediction indication position
Frequency decodes；
If so, carrying out the video decoding predicted based on composograph；Otherwise, it is regarded without what is predicted based on composograph
Frequency decodes；
Wherein, the video based on composograph prediction, which decodes, includes：When decoding the texture information in non-basic visual angle,
According in basic visual angle texture information and depth information synthesize the texture block in current decoding visual angle；Decode non-basic visual angle
In depth information when, the depth block in current decoding visual angle is synthesized according to the depth information in basic visual angle.
The embodiment of the present invention also provides a kind of video encoder predicted based on composograph, is calculated with itself for carrying out
The adaptable Video coding of ability, the video encoder include：
Indicate determining module, for determining according to the pre- mark of composograph that coding computing capability is non-basic visual angle setting
The value of will position；
Determining module is encoded, for determining whether to be based on according to the value of composograph prediction indication position
The Video coding of composograph prediction；
Video encoding module, for when determining the Video coding for allowing to carry out to predict based on composograph, being based on
The Video coding of composograph prediction；When determining the Video coding for not allowing to carry out to predict based on composograph, without base
In the Video coding of composograph prediction；
Wherein, the Video coding based on composograph prediction includes：When encoding the texture information in non-basic visual angle,
According in basic visual angle texture information and depth information synthesize the texture block in present encoding visual angle；Encode non-basic visual angle
In depth information when, the depth block in present encoding visual angle is synthesized according to the depth information in basic visual angle.
The embodiment of the present invention also provides a kind of Video Decoder predicted based on composograph, is calculated with itself for carrying out
The adaptable video decoding of ability, the Video Decoder include：
Indicate determining module, for determining according to the pre- mark of composograph that decoding computing capability is non-basic visual angle setting
The value of will position；
Determining module is decoded, for determining whether to be based on according to the value of composograph prediction indication position
The video decoding of composograph prediction；
Video decoding module, for when determination allows decode based on the video that composograph is predicted, being based on
The video decoding of composograph prediction；When determination does not allow decode based on the video that composograph is predicted, without base
In the video decoding of composograph prediction；
Wherein, the video based on composograph prediction, which decodes, includes：When decoding the texture information in non-basic visual angle,
According in basic visual angle texture information and depth information synthesize the texture block in current decoding visual angle；Decode non-basic visual angle
In depth information when, the depth block in current decoding visual angle is synthesized according to the depth information in basic visual angle.
It is that non-basic visual angle is provided with composograph prediction indication position according to coding computing capability in the embodiment of the present invention,
Indicate whether the Video coding for allowing predict based on composograph, when coding first determines taking for composograph prediction indication position
Value, the video predicted based on composograph is determined whether according further to the value of composograph prediction indication position
Coding, carries out the Video coding predicted based on composograph if allowing, if not allowing without being based on composograph prediction
Video decoding；It can be flexibly applied to the video encoder of different computing capabilitys in this way, it can be stronger in coding computing capability
When, the Video coding predicted based on composograph is carried out, when coding computing capability is weaker, without being based on composograph prediction
Video coding.
It is that non-basic visual angle is provided with composograph prediction indication position according to decoding computing capability in the embodiment of the present invention,
Indicate whether to allow to carry out the video decoding predicted based on composograph, when decoding first determines taking for composograph prediction indication position
Value, the video predicted based on composograph is determined whether according further to the value of composograph prediction indication position
Decoding carries out the video decoding predicted based on composograph if allowing, if not allowing without being based on composograph prediction
Video decoding；It can be flexibly applied to the Video Decoder of different computing capabilitys in this way, it can be stronger in decoding computing capability
When, the video decoding predicted based on composograph is carried out, when decoding computing capability is weaker, without being based on composograph prediction
Video decoding.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.In the accompanying drawings：
Fig. 1 is the process chart of the method for video coding based on composograph prediction in the embodiment of the present invention；
Fig. 2 is the process chart of the video encoding/decoding method based on composograph prediction in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the video encoder based on composograph prediction in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the Video Decoder based on composograph prediction in the embodiment of the present invention.
Specific implementation mode
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the accompanying drawings to this hair
Bright embodiment is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
For the video coding-decoding method that flexible Application is predicted based on composograph in coding and decoding video, to be suitable for not
With the Video Codec of computing capability, the embodiment of the present invention propose a kind of method for video coding predicted based on composograph and
Video encoding/decoding method.
It is that non-basic visual angle setting is closed according to coding computing capability in the method for video coding predicted based on composograph
At image prediction flag bit, the value of composograph prediction indication position indicates whether to allow to carry out to regard based on what composograph was predicted
Frequency encodes, and the Video coding predicted based on composograph can be enabled if allowing, if not allowing to need to deactivate based on synthesis
The Video coding of image prediction, to can neatly open or close base by the setting of the value of composograph prediction indication position
In the Video coding of composograph prediction, it is suitable for the video encoder of different computing capabilitys, when coding computing capability is stronger,
The Video coding predicted based on composograph can be carried out, it is pre- without being based on composograph when coding computing capability is weaker
The Video coding of survey.
Fig. 1 is the process chart of the method for video coding based on composograph prediction in the embodiment of the present invention.Such as Fig. 1 institutes
Show, the method for video coding based on composograph prediction in the embodiment of the present invention may include：
Step 101 determines taking according to the composograph prediction indication position that coding computing capability is non-basic visual angle setting
Value；
Step 102 determines whether predict based on composograph according to the value of composograph prediction indication position
Video coding；If so, thening follow the steps 103；Otherwise, step 104 is executed；
Step 103 carries out the Video coding predicted based on composograph；
Step 104, the Video coding without being predicted based on composograph；
Wherein, the above-mentioned Video coding based on composograph prediction includes：When encoding the texture information in non-basic visual angle,
According in basic visual angle texture information and depth information synthesize the texture block in present encoding visual angle；Encode non-basic visual angle
In depth information when, the depth block in present encoding visual angle is synthesized according to the depth information in basic visual angle.
When it is implemented, for the video encoder of more flexible support difference computing capability, the base of the embodiment of the present invention
In the method for video coding of composograph prediction, can composograph be set in sequence-level, image level or slice level and predict
Flag bit, so as to open and deactivate the method for video coding predicted based on composograph in different stage.
In one embodiment, sequence-level composograph prediction indication position can be set.For non-basic multiview sequence, including
Texture sequence in non-basic visual angle and depth sequence, can be in sequence-level parameter set (sequence parameter set)
A composograph prediction indication position is added.The composograph prediction indication position indicates whether to allow to the non-basic multiview sequence
Carry out the Video coding predicted based on composograph.In this example, determine that the value of composograph prediction indication position specifically can be real
Shi Wei：It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, it is non-basic
Multiview sequence includes texture sequence and depth sequence in non-basic visual angle.It is determined according to the value of composograph prediction indication position
Whether the Video coding that based on composograph predict is allowed；If so, carrying out the Video coding predicted based on composograph；
Otherwise, it without the Video coding predicted based on composograph, specifically may be embodied as：According to composograph prediction indication position
Value determines whether to carry out the Video coding predicted based on composograph to non-basic multiview sequence；If so, to non-base
This multiview sequence carries out the Video coding predicted based on composograph；Otherwise, non-basic multiview sequence is not carried out based on synthesis
The Video coding of image prediction.
In another embodiment, image level composograph prediction indication position can be set.For non-basic multiview sequence (including
Texture sequence in non-basic visual angle and depth sequence) in every piece image, in image level parameter set (picture
Parameter set) one composograph prediction indication position of middle addition.Piece image corresponds to a composograph prediction when implementation
Flag bit.Composograph prediction indication position indicates whether to allow to carry out based on synthesis the respective image in non-basic multiview sequence
The Video coding of image prediction.In this example, determines the value of composograph prediction indication position, specifically may be embodied as：It is determined as
Every piece image in non-basic multiview sequence the composograph prediction indication position of image level parameter concentrated setting value, it is non-
Basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle.According to the value of composograph prediction indication position
Determine whether the Video coding predicted based on composograph；If so, carrying out the video predicted based on composograph
Coding；Otherwise, it without the Video coding predicted based on composograph, specifically may be embodied as：According to the pre- mark of composograph
The value of will position determines whether to carry out the video predicted based on composograph to the respective image in non-basic multiview sequence
Coding；If so, the Video coding for the respective image in non-basic multiview sequence predict based on composograph；Otherwise,
The Video coding predicted based on composograph is not carried out to the respective image in non-basic multiview sequence.
In another embodiment, slice level composograph prediction indication position can be set.For non-basic multiview sequence (including
Texture sequence in non-basic visual angle and depth sequence) in each band, in slice level parameters collection (slice
Parameter set) one composograph prediction indication position of middle addition.It is pre- to correspond to a composograph for first band when implementation
Survey flag bit.Composograph prediction indication position indicates whether to allow to carry out based on conjunction the respective strap in non-basic multiview sequence
At the Video coding of image prediction.In this example, determines the value of composograph prediction indication position, specifically may be embodied as：It determines
Value for each band in non-basic multiview sequence in the composograph prediction indication position of slice level parameters concentrated setting,
Non- basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle.According to taking for composograph prediction indication position
Value determines whether the Video coding predicted based on composograph；If so, regarded based on what composograph was predicted
Frequency encodes；Otherwise, it without the Video coding predicted based on composograph, specifically may be embodied as：It is predicted according to composograph
The value of flag bit determines whether to the respective strap in non-basic multiview sequence regard based on what composograph was predicted
Frequency encodes；If so, the Video coding for the respective strap in non-basic multiview sequence predict based on composograph；It is no
Then, the Video coding predicted based on composograph is not carried out to the respective strap in non-basic multiview sequence.
When it is implemented, determining whether to carry out according to the value of composograph prediction indication position pre- based on composograph
The Video coding of survey, the wherein value of composograph prediction indication position with whether allow the video predicted based on composograph
There is a correspondence, such as when the value of composograph prediction indication position is "true" between coding, allows to carry out based on conjunction
At the Video coding of image prediction, otherwise, the Video coding that does not allow to carry out to predict based on composograph (such as work as composograph
When the value of prediction indication position is "false").For another example when the value of composograph prediction indication position is " 1 ", allow to be based on
The Video coding of composograph prediction does not allow to carry out being based on composite diagram when the value of composograph prediction indication position is " 0 "
As the Video coding of prediction.The specific value of composograph prediction indication position can be set according to actual demand, can be appropriate
Ground indicates whether the Video coding for allowing predict based on composograph.
It is non-base according to decoding computing capability in the video encoding/decoding method based on composograph prediction of the embodiment of the present invention
Composograph prediction indication position is arranged in this visual angle, and the value of composograph prediction indication position indicates whether to allow to carry out based on synthesis
The video of image prediction decodes, and the video predicted based on composograph can be enabled if allowing and is decoded, if not allowing to need
The video decoding predicted based on composograph is deactivated, it can be neatly to be arranged by the value of composograph prediction indication position
The video decoding predicted based on composograph is opened or closed, the Video Decoder of different computing capabilitys is suitable for, is counted in decoding
When calculation ability is stronger, the video decoding predicted based on composograph can be carried out, when decoding computing capability is weaker, without base
In the video decoding of composograph prediction.
Fig. 2 is the process chart of the video encoding/decoding method based on composograph prediction in the embodiment of the present invention.Such as Fig. 2 institutes
Show, the video encoding/decoding method based on composograph prediction in the embodiment of the present invention may include：
Step 201 determines taking according to the composograph prediction indication position that decoding computing capability is non-basic visual angle setting
Value；
Step 202 determines whether predict based on composograph according to the value of composograph prediction indication position
Video decoding；If so, thening follow the steps 203；Otherwise, step 204 is executed；
Step 203 carries out the video decoding predicted based on composograph；
Step 204, the video decoding without being predicted based on composograph；
Wherein, the above-mentioned video based on composograph prediction, which decodes, includes：When decoding the texture information in non-basic visual angle,
According in basic visual angle texture information and depth information synthesize the texture block in current decoding visual angle；Decode non-basic visual angle
In depth information when, the depth block in current decoding visual angle is synthesized according to the depth information in basic visual angle.
When it is implemented, for the Video Decoder of more flexible support difference computing capability, the base of the embodiment of the present invention
In the video encoding/decoding method of composograph prediction, it is pre- can also composograph to be set in sequence-level, image level or slice level
Flag bit is surveyed, so as to open and deactivate the video encoding/decoding method predicted based on composograph in different stage.
In one embodiment, sequence-level composograph prediction indication position can be set.For non-basic multiview sequence, including
Texture sequence in non-basic visual angle and depth sequence, can be in sequence-level parameter set (sequence parameter set)
A composograph prediction indication position is added.The composograph prediction indication position indicates whether to allow to the non-basic multiview sequence
Carry out the video decoding predicted based on composograph.In this example, determine that the value of composograph prediction indication position specifically can be real
Shi Wei：It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, it is non-basic
Multiview sequence includes texture sequence and depth sequence in non-basic visual angle.It is determined according to the value of composograph prediction indication position
Whether the video decoding that based on composograph predict is allowed；If so, carrying out the video decoding predicted based on composograph；
Otherwise, it without the video decoding predicted based on composograph, specifically may be embodied as：According to composograph prediction indication position
Value determines whether to carry out the video decoding predicted based on composograph to non-basic multiview sequence；If so, to non-base
This multiview sequence carries out the video decoding predicted based on composograph；Otherwise, non-basic multiview sequence is not carried out based on synthesis
The video of image prediction decodes.
In another embodiment, image level composograph prediction indication position can be set.For non-basic multiview sequence (including
Texture sequence in non-basic visual angle and depth sequence) in every piece image, in image level parameter set (picture
Parameter set) one composograph prediction indication position of middle addition.Piece image corresponds to a composograph prediction when implementation
Flag bit.Composograph prediction indication position indicates whether to allow to carry out based on synthesis the respective image in non-basic multiview sequence
The video of image prediction decodes.In this example, determines the value of composograph prediction indication position, specifically may be embodied as：It is determined as
Every piece image in non-basic multiview sequence the composograph prediction indication position of image level parameter concentrated setting value, it is non-
Basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle.According to the value of composograph prediction indication position
Determine whether the video decoding predicted based on composograph；If so, carrying out the video predicted based on composograph
Decoding；Otherwise, it without the video decoding predicted based on composograph, specifically may be embodied as：According to the pre- mark of composograph
The value of will position determines whether to carry out the video predicted based on composograph to the respective image in non-basic multiview sequence
Decoding；If so, to the respective image in non-basic multiview sequence decode based on the video that composograph is predicted；Otherwise,
Respective image in non-basic multiview sequence decoded based on the video that composograph is predicted.
In another embodiment, slice level composograph prediction indication position can be set.For non-basic multiview sequence (including
Texture sequence in non-basic visual angle and depth sequence) in each band, in slice level parameters collection (slice
Parameter set) one composograph prediction indication position of middle addition.It is pre- to correspond to a composograph for first band when implementation
Survey flag bit.Composograph prediction indication position indicates whether to allow to carry out based on conjunction the respective strap in non-basic multiview sequence
It is decoded at the video of image prediction.In this example, determines the value of composograph prediction indication position, specifically may be embodied as：It determines
Value for each band in non-basic multiview sequence in the composograph prediction indication position of slice level parameters concentrated setting,
Non- basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle.According to taking for composograph prediction indication position
Value determines whether the video decoding predicted based on composograph；If so, regarded based on what composograph was predicted
Frequency decodes；Otherwise, it without the video decoding predicted based on composograph, specifically may be embodied as：It is predicted according to composograph
The value of flag bit determines whether to the respective strap in non-basic multiview sequence regard based on what composograph was predicted
Frequency decodes；If so, to the respective strap in non-basic multiview sequence decode based on the video that composograph is predicted；It is no
Then, the respective strap in non-basic multiview sequence decoded based on the video that composograph is predicted.
When it is implemented, determining whether to carry out according to the value of composograph prediction indication position pre- based on composograph
The video of survey decodes, wherein the value of composograph prediction indication position with whether allow the video predicted based on composograph
There is a correspondence, such as when the value of composograph prediction indication position is "true" between decoding, allows to carry out based on conjunction
It is decoded at the video of image prediction, otherwise, do not allow to carry out to decode based on the video that composograph predict (such as work as composograph
When the value of prediction indication position is "false").For another example when the value of composograph prediction indication position is " 1 ", allow to be based on
The video decoding of composograph prediction does not allow to carry out being based on composite diagram when the value of composograph prediction indication position is " 0 "
As the video decoding of prediction.The specific value of composograph prediction indication position can be set according to actual demand, can be appropriate
Ground indicates whether the video decoding for allowing to carry out to predict based on composograph.
Based on same inventive concept, a kind of Video coding predicted based on composograph is additionally provided in the embodiment of the present invention
Device and Video Decoder, as described in the following examples.The principle solved the problems, such as due to the video encoder and Video Decoder
It is similar to the method for video coding and video encoding/decoding method predicted based on composograph respectively, therefore the video encoder and video
The implementation of decoder may refer to the implementation of the method for video coding and video encoding/decoding method predicted based on composograph, repetition
Place repeats no more.
Fig. 3 is the structural schematic diagram of the video encoder based on composograph prediction in the embodiment of the present invention.Such as Fig. 3 institutes
Show, the video encoder based on composograph prediction in the embodiment of the present invention may include：
Indicate determining module 301, it is pre- according to the composograph that coding computing capability is non-basic visual angle setting for determining
Survey the value of flag bit；
Determining module 302 is encoded, for determining whether to be based on according to the value of composograph prediction indication position
The Video coding of composograph prediction；
Video encoding module 303, for when determining the Video coding for allowing to carry out predict based on composograph, progress base
In the Video coding of composograph prediction；When determining the Video coding for not allowing to carry out to predict based on composograph, without
Video coding based on composograph prediction；
Wherein, based on composograph prediction Video coding include：When encoding the texture information in non-basic visual angle, according to
Texture information and depth information in basic visual angle synthesize the texture block in present encoding visual angle；It encodes in non-basic visual angle
When depth information, the depth block in present encoding visual angle is synthesized according to the depth information in basic visual angle.
When it is implemented, mark determining module 301 specifically can be used for：
It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, non-base
This multiview sequence includes texture sequence and depth sequence in non-basic visual angle；
Coding determining module 302 specifically can be used for：
It determines whether to carry out based on synthesis non-basic multiview sequence according to the value of composograph prediction indication position
The Video coding of image prediction；
Video encoding module 303 specifically can be used for：
Determine allow to carry out the Video coding predicted based on composograph to non-basic multiview sequence when, regarded substantially to non-
Angle sequence carries out the Video coding predicted based on composograph；Do not allow to carry out based on synthesis non-basic multiview sequence determining
When the Video coding of image prediction, to non-basic multiview sequence without the Video coding predicted based on composograph.
When it is implemented, mark determining module 301 specifically can be used for：
The every piece image being determined as in non-basic multiview sequence is predicted in the composograph of image level parameter concentrated setting
The value of flag bit, non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
Coding determining module 302 specifically can be used for：
It is determined whether to the respective image in non-basic multiview sequence according to the value of composograph prediction indication position
Carry out the Video coding predicted based on composograph；
Video encoding module 303 specifically can be used for：
Allow to carry out the Video coding predicted based on composograph to the respective image in non-basic multiview sequence in determination
When, Video coding that the respective image in non-basic multiview sequence predicted based on composograph；Do not allow pair determining
When respective image in non-basic multiview sequence carries out the Video coding predicted based on composograph, in non-basic multiview sequence
Respective image without the Video coding predicted based on composograph.
When it is implemented, mark determining module 301 specifically can be used for：
Each band being determined as in non-basic multiview sequence is predicted in the composograph of slice level parameters concentrated setting
The value of flag bit, non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
Coding determining module 302 specifically can be used for：
It is determined whether to the respective strap in non-basic multiview sequence according to the value of composograph prediction indication position
Carry out the Video coding predicted based on composograph；
Video encoding module 303 specifically can be used for：
Allow to carry out the Video coding predicted based on composograph to the respective strap in non-basic multiview sequence in determination
When, Video coding that the respective strap in non-basic multiview sequence predicted based on composograph；Do not allow pair determining
When respective strap in non-basic multiview sequence carries out the Video coding predicted based on composograph, in non-basic multiview sequence
Respective strap without the Video coding predicted based on composograph.
When it is implemented, coding determining module 302 specifically can be used for：
When value in composograph prediction indication position is true, determining allows to carry out to compile based on the video that composograph is predicted
Code；
Otherwise, it determines not allowing the Video coding predicted based on composograph.
Fig. 4 is the structural schematic diagram of the Video Decoder based on composograph prediction in the embodiment of the present invention.Such as Fig. 3 institutes
Show, the Video Decoder based on composograph prediction in the embodiment of the present invention may include：
Indicate determining module 401, it is pre- according to the composograph that decoding computing capability is non-basic visual angle setting for determining
Survey the value of flag bit；
Determining module 402 is decoded, for determining whether to be based on according to the value of composograph prediction indication position
The video decoding of composograph prediction；
Video decoding module 403, for when determination allows decode based on the video that composograph is predicted, carrying out base
In the video decoding of composograph prediction；When determination does not allow decode based on the video that composograph is predicted, without
Video decoding based on composograph prediction；
Wherein, the video based on composograph prediction, which decodes, includes：When decoding the texture information in non-basic visual angle, according to
Texture information and depth information in basic visual angle synthesize the texture block in current decoding visual angle；It decodes in non-basic visual angle
When depth information, the depth block in current decoding visual angle is synthesized according to the depth information in basic visual angle.
When it is implemented, mark determining module 401 specifically can be used for：
It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, non-base
This multiview sequence includes texture sequence and depth sequence in non-basic visual angle；
Decoding determining module 402 specifically can be used for：
It determines whether to carry out based on synthesis non-basic multiview sequence according to the value of composograph prediction indication position
The video of image prediction decodes；
Video decoding module 403 specifically can be used for：
When determination allows to non-basic multiview sequence decode based on the video that composograph is predicted, regarded substantially to non-
Angle sequence carries out the video decoding predicted based on composograph；Do not allow to carry out based on synthesis non-basic multiview sequence determining
When the video decoding of image prediction, non-basic multiview sequence is decoded without the video predicted based on composograph.
When it is implemented, mark determining module 401 specifically can be used for：
The every piece image being determined as in non-basic multiview sequence is predicted in the composograph of image level parameter concentrated setting
The value of flag bit, non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
Decoding determining module 402 specifically can be used for：
It is determined whether to the respective image in non-basic multiview sequence according to the value of composograph prediction indication position
Carry out the video decoding predicted based on composograph；
Video decoding module 403 specifically can be used for：
Allow to carry out the video decoding predicted based on composograph to the respective image in non-basic multiview sequence determining
When, the respective image in non-basic multiview sequence decoded based on the video that composograph is predicted；Do not allow pair determining
When respective image in non-basic multiview sequence decoded based on the video that composograph is predicted, in non-basic multiview sequence
Respective image without predicted based on composograph video decoding.
When it is implemented, mark determining module 401 specifically can be used for：
Each band being determined as in non-basic multiview sequence is predicted in the composograph of slice level parameters concentrated setting
The value of flag bit, non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
Decoding determining module 402 specifically can be used for：
It is determined whether to the respective strap in non-basic multiview sequence according to the value of composograph prediction indication position
Carry out the video decoding predicted based on composograph；
Video decoding module 403 specifically can be used for：
Allow to carry out the video decoding predicted based on composograph to the respective strap in non-basic multiview sequence determining
When, the respective strap in non-basic multiview sequence decoded based on the video that composograph is predicted；Do not allow pair determining
When respective strap in non-basic multiview sequence decoded based on the video that composograph is predicted, in non-basic multiview sequence
Respective strap without predicted based on composograph video decoding.
When it is implemented, decoding determining module 402 specifically can be used for：
When value in composograph prediction indication position is true, the video solution for allowing predict based on composograph is determined
Code；
Otherwise, it determines not allowing the video decoding predicted based on composograph.
In conclusion in the embodiment of the present invention, it is pre- to be that non-basic visual angle is provided with composograph according to coding computing capability
Flag bit is surveyed, indicates whether the Video coding for allowing predict based on composograph, when coding first determines that composograph is predicted
The value of flag bit determines whether to carry out being based on composograph according further to the value of composograph prediction indication position
The Video coding of prediction carries out the Video coding predicted based on composograph if allowing, if not allowing without being based on closing
It is decoded at the video of image prediction；It can be flexibly applied to the video encoder of different computing capabilitys in this way, video encoder can
To carry out the Video coding being adapted with itself computing capability, when coding computing capability is stronger, carry out pre- based on composograph
The Video coding of survey, when coding computing capability is weaker, without the Video coding predicted based on composograph.
It is that non-basic visual angle is provided with composograph prediction indication position according to decoding computing capability in the embodiment of the present invention,
Indicate whether to allow to carry out the video decoding predicted based on composograph, when decoding first determines taking for composograph prediction indication position
Value, the video predicted based on composograph is determined whether according further to the value of composograph prediction indication position
Decoding carries out the video decoding predicted based on composograph if allowing, if not allowing without being based on composograph prediction
Video decoding；It can be flexibly applied to the Video Decoder of different computing capabilitys in this way, Video Decoder can carry out and oneself
The adaptable Video coding of body computing capability carries out the video solution predicted based on composograph when decoding computing capability is stronger
Code, when decoding computing capability is weaker, without the video decoding predicted based on composograph.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection domain of invention.
Claims (20)
1. a kind of method for video coding based on composograph prediction, which is characterized in that including：
Determine the value according to the composograph prediction indication position that coding computing capability is non-basic visual angle setting；
It determines whether to carry out to compile based on the video that composograph is predicted according to the value of composograph prediction indication position
Code；
If so, carrying out the Video coding predicted based on composograph；Otherwise, the video without being predicted based on composograph is compiled
Code；
Wherein, the Video coding based on composograph prediction includes：When encoding the texture information in non-basic visual angle, according to
Texture information and depth information in basic visual angle synthesize the texture block in present encoding visual angle；It encodes in non-basic visual angle
When depth information, the depth block in present encoding visual angle is synthesized according to the depth information in basic visual angle.
2. the method as described in claim 1, which is characterized in that determine the value of composograph prediction indication position, including：
It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, it is described
Non- basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle；
It determines whether to carry out to compile based on the video that composograph is predicted according to the value of composograph prediction indication position
Code；If so, carrying out the Video coding predicted based on composograph；Otherwise, the video without being predicted based on composograph is compiled
Code, including：
It determines whether to be based on the non-basic multiview sequence according to the value of composograph prediction indication position
The Video coding of composograph prediction；If so, carrying out the video predicted based on composograph to the non-basic multiview sequence
Coding；Otherwise, the Video coding predicted based on composograph is not carried out to the non-basic multiview sequence.
3. the method as described in claim 1, which is characterized in that determine the value of composograph prediction indication position, including：
The every piece image being determined as in non-basic multiview sequence is predicted in the composograph of image level parameter concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
It determines whether to carry out to compile based on the video that composograph is predicted according to the value of composograph prediction indication position
Code；If so, carrying out the Video coding predicted based on composograph；Otherwise, the video without being predicted based on composograph is compiled
Code, including：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Image carries out the Video coding predicted based on composograph；If so, to the respective image in the non-basic multiview sequence into
The Video coding that row is predicted based on composograph；Otherwise, the respective image in the non-basic multiview sequence is not based on
The Video coding of composograph prediction.
4. the method as described in claim 1, which is characterized in that determine the value of composograph prediction indication position, including：
Each band being determined as in non-basic multiview sequence is predicted in the composograph of slice level parameters concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
It determines whether to carry out to compile based on the video that composograph is predicted according to the value of composograph prediction indication position
Code；If so, carrying out the Video coding predicted based on composograph；Otherwise, the video without being predicted based on composograph is compiled
Code, including：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Band carries out the Video coding predicted based on composograph；If so, to the respective strap in the non-basic multiview sequence into
The Video coding that row is predicted based on composograph；Otherwise, the respective strap in the non-basic multiview sequence is not based on
The Video coding of composograph prediction.
5. such as Claims 1-4 any one of them method, which is characterized in that according to composograph prediction indication position
Value determines whether the Video coding predicted based on composograph, including：
When value in composograph prediction indication position is true, determining allows to carry out to compile based on the video that composograph is predicted
Code；
Otherwise, it determines not allowing the Video coding predicted based on composograph.
6. a kind of video encoding/decoding method based on composograph prediction, which is characterized in that including：
Determine the value according to the composograph prediction indication position that decoding computing capability is non-basic visual angle setting；
The video solution for determining whether predict based on composograph according to the value of composograph prediction indication position
Code；
If so, carrying out the video decoding predicted based on composograph；Otherwise, the video solution without being predicted based on composograph
Code；
Wherein, the video based on composograph prediction, which decodes, includes：When decoding the texture information in non-basic visual angle, according to
Texture information and depth information in basic visual angle synthesize the texture block in current decoding visual angle；It decodes in non-basic visual angle
When depth information, the depth block in current decoding visual angle is synthesized according to the depth information in basic visual angle.
7. method as claimed in claim 6, which is characterized in that determine the value of composograph prediction indication position, including：
It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, it is described
Non- basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle；
The video solution for determining whether predict based on composograph according to the value of composograph prediction indication position
Code；If so, carrying out the video decoding predicted based on composograph；Otherwise, the video solution without being predicted based on composograph
Code, including：
It determines whether to be based on the non-basic multiview sequence according to the value of composograph prediction indication position
The video decoding of composograph prediction；If so, carrying out the video predicted based on composograph to the non-basic multiview sequence
Decoding；Otherwise, the non-basic multiview sequence decoded based on the video that composograph is predicted.
8. method as claimed in claim 6, which is characterized in that determine the value of composograph prediction indication position, including：
The every piece image being determined as in non-basic multiview sequence is predicted in the composograph of image level parameter concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
The video solution for determining whether predict based on composograph according to the value of composograph prediction indication position
Code；If so, carrying out the video decoding predicted based on composograph；Otherwise, the video solution without being predicted based on composograph
Code, including：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Image carries out the video decoding predicted based on composograph；If so, to the respective image in the non-basic multiview sequence into
The video decoding that row is predicted based on composograph；Otherwise, the respective image in the non-basic multiview sequence is not based on
The video decoding of composograph prediction.
9. method as claimed in claim 6, which is characterized in that determine the value of composograph prediction indication position, including：
Each band being determined as in non-basic multiview sequence is predicted in the composograph of slice level parameters concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
The video solution for determining whether predict based on composograph according to the value of composograph prediction indication position
Code；If so, carrying out the video decoding predicted based on composograph；Otherwise, the video solution without being predicted based on composograph
Code, including：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Band carries out the video decoding predicted based on composograph；If so, to the respective strap in the non-basic multiview sequence into
The video decoding that row is predicted based on composograph；Otherwise, the respective strap in the non-basic multiview sequence is not based on
The video decoding of composograph prediction.
10. such as claim 6 to 9 any one of them method, which is characterized in that according to composograph prediction indication position
Value determines whether the video decoding predicted based on composograph, including：
When value in composograph prediction indication position is true, the video solution for allowing predict based on composograph is determined
Code；
Otherwise, it determines not allowing the video decoding predicted based on composograph.
11. a kind of video encoder based on composograph prediction, which is characterized in that including：
Indicate determining module, for determining according to the composograph prediction indication position that coding computing capability is non-basic visual angle setting
Value；
Determining module is encoded, for determining whether to carry out based on synthesis according to the value of composograph prediction indication position
The Video coding of image prediction；
Video encoding module, for when determining the Video coding for allowing to carry out predict based on composograph, carrying out based on synthesizing
The Video coding of image prediction；When determining the Video coding for not allowing to carry out to predict based on composograph, closed without being based on
At the Video coding of image prediction；
Wherein, the Video coding based on composograph prediction includes：When encoding the texture information in non-basic visual angle, according to
Texture information and depth information in basic visual angle synthesize the texture block in present encoding visual angle；It encodes in non-basic visual angle
When depth information, the depth block in present encoding visual angle is synthesized according to the depth information in basic visual angle.
12. video encoder as claimed in claim 11, which is characterized in that the mark determining module is specifically used for：
It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, it is described
Non- basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle；
The coding determining module is specifically used for：
It determines whether to be based on the non-basic multiview sequence according to the value of composograph prediction indication position
The Video coding of composograph prediction；
The video encoding module is specifically used for：
Determine allow to carry out the Video coding predicted based on composograph to the non-basic multiview sequence when, to the non-base
This multiview sequence carries out the Video coding predicted based on composograph；Do not allow to carry out the non-basic multiview sequence determining
When Video coding based on composograph prediction, to the non-basic multiview sequence without the video predicted based on composograph
Coding.
13. video encoder as claimed in claim 11, which is characterized in that the mark determining module is specifically used for：
The every piece image being determined as in non-basic multiview sequence is predicted in the composograph of image level parameter concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
The coding determining module is specifically used for：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Image carries out the Video coding predicted based on composograph；
The video encoding module is specifically used for：
Allow to carry out the Video coding predicted based on composograph to the respective image in the non-basic multiview sequence in determination
When, the Video coding predicted based on composograph is carried out to the respective image in the non-basic multiview sequence；Do not permit in determination
When carrying out the Video coding predicted based on composograph to the respective image in the non-basic multiview sequence perhaps, to the non-base
Respective image in this multiview sequence is without the Video coding predicted based on composograph.
14. video encoder as claimed in claim 11, which is characterized in that the mark determining module is specifically used for：
Each band being determined as in non-basic multiview sequence is predicted in the composograph of slice level parameters concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
The coding determining module is specifically used for：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Band carries out the Video coding predicted based on composograph；
The video encoding module is specifically used for：
Allow to carry out the Video coding predicted based on composograph to the respective strap in the non-basic multiview sequence in determination
When, the Video coding predicted based on composograph is carried out to the respective strap in the non-basic multiview sequence；Do not permit in determination
When carrying out the Video coding predicted based on composograph to the respective strap in the non-basic multiview sequence perhaps, to the non-base
Respective strap in this multiview sequence is without the Video coding predicted based on composograph.
15. such as claim 11 to 14 any one of them video encoder, which is characterized in that the coding determining module is specific
For：
When value in composograph prediction indication position is true, determining allows to carry out to compile based on the video that composograph is predicted
Code；
Otherwise, it determines not allowing the Video coding predicted based on composograph.
16. a kind of Video Decoder based on composograph prediction, which is characterized in that including：
Indicate determining module, for determining according to the composograph prediction indication position that decoding computing capability is non-basic visual angle setting
Value；
Determining module is decoded, for determining whether to carry out based on synthesis according to the value of composograph prediction indication position
The video of image prediction decodes；
Video decoding module, for when determination allows decode based on the video that composograph is predicted, carrying out based on synthesis
The video of image prediction decodes；When determination does not allow decode based on the video that composograph is predicted, closed without being based on
It is decoded at the video of image prediction；
Wherein, the video based on composograph prediction, which decodes, includes：When decoding the texture information in non-basic visual angle, according to
Texture information and depth information in basic visual angle synthesize the texture block in current decoding visual angle；It decodes in non-basic visual angle
When depth information, the depth block in current decoding visual angle is synthesized according to the depth information in basic visual angle.
17. Video Decoder as claimed in claim 16, which is characterized in that the mark determining module is specifically used for：
It is determined as the value that non-basic multiview sequence concentrates the composograph prediction indication position of setting in sequential parameter, it is described
Non- basic multiview sequence includes texture sequence and depth sequence in non-basic visual angle；
The decoding determining module is specifically used for：
It determines whether to be based on the non-basic multiview sequence according to the value of composograph prediction indication position
The video decoding of composograph prediction；
The Video decoding module is specifically used for：
When determination allows to the non-basic multiview sequence decode based on the video that composograph is predicted, to the non-base
This multiview sequence carries out the video decoding predicted based on composograph；Do not allow to carry out the non-basic multiview sequence determining
When video decoding based on composograph prediction, to the non-basic multiview sequence without the video predicted based on composograph
Decoding.
18. Video Decoder as claimed in claim 16, which is characterized in that the mark determining module is specifically used for：
The every piece image being determined as in non-basic multiview sequence is predicted in the composograph of image level parameter concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
The decoding determining module is specifically used for：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Image carries out the video decoding predicted based on composograph；
The Video decoding module is specifically used for：
Allow to carry out the video decoding predicted based on composograph to the respective image in the non-basic multiview sequence determining
When, the respective image in the non-basic multiview sequence decoded based on the video that composograph is predicted；Do not permit in determination
When to the respective image in the non-basic multiview sequence decode based on the video that composograph is predicted perhaps, to the non-base
Respective image in this multiview sequence is decoded without the video predicted based on composograph.
19. Video Decoder as claimed in claim 16, which is characterized in that the mark determining module is specifically used for：
Each band being determined as in non-basic multiview sequence is predicted in the composograph of slice level parameters concentrated setting
The value of flag bit, the non-basic multiview sequence include texture sequence and depth sequence in non-basic visual angle；
The decoding determining module is specifically used for：
It is determined whether to corresponding in the non-basic multiview sequence according to the value of composograph prediction indication position
Band carries out the video decoding predicted based on composograph；
The Video decoding module is specifically used for：
Allow to carry out the video decoding predicted based on composograph to the respective strap in the non-basic multiview sequence determining
When, the respective strap in the non-basic multiview sequence decoded based on the video that composograph is predicted；Do not permit in determination
When to the respective strap in the non-basic multiview sequence decode based on the video that composograph is predicted perhaps, to the non-base
Respective strap in this multiview sequence is decoded without the video predicted based on composograph.
20. such as claim 16 to 19 any one of them Video Decoder, which is characterized in that the decoding determining module is specific
For：
When value in composograph prediction indication position is true, the video solution for allowing predict based on composograph is determined
Code；
Otherwise, it determines not allowing the video decoding predicted based on composograph.
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| CN101971630A (en) * | 2007-10-05 | 2011-02-09 | 汤姆逊许可证公司 | Methods and apparatus for incorporating video usability information (vui) within a multi-view video (mvc) coding system |
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| CN102804773A (en) * | 2009-06-29 | 2012-11-28 | 高通股份有限公司 | Assembling multiview video coding sub-bistreams in mpeg-2 systems |
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