CN103533372B - The coding of bidirectional predictive picture sheet, coding/decoding method and equipment - Google Patents
The coding of bidirectional predictive picture sheet, coding/decoding method and equipment Download PDFInfo
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- CN103533372B CN103533372B CN201210225267.1A CN201210225267A CN103533372B CN 103533372 B CN103533372 B CN 103533372B CN 201210225267 A CN201210225267 A CN 201210225267A CN 103533372 B CN103533372 B CN 103533372B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
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Abstract
The embodiment of the present application provides coding, coding/decoding method and the equipment of a kind of bidirectional predictive picture sheet.The embodiment of the present application is by utilizing zero movable information, structure fusion mode movable information list, described zero movable information includes the first instruction, described first instruction is single directional prediction for indication predicting mode, thus reduce the process complexity that encoding device utilizes zero movable information to perform the encoding operation, or reduce decoding device utilize zero movable information be decoded operation process complexity.
Description
Technical field
The application relates to encoding and decoding technique, particularly relates to the coding of a kind of bidirectional predictive picture sheet, decoding side
Method and equipment.
Background technology
High-performance video coding (High Efficiency Video Coding, HEVC), is for satisfied day
The Video Applications demand that benefit increases, the particularly application demand of HD video and the video of new generation formulated is compiled
Code standard.Bidirectional predictive picture sheet can include multiple image block, in HEVC standard, works as image block
When using fusion (merge) pattern-coding, several fusion mode movable information (merge can be constructed
Candidate), composition fusion mode movable information list (merge candidate list).
But, due to the zero movable information (zero utilized when constructing fusion mode movable information list
Merge candidate) prediction mode that used is bi-directional predicted, if encoding device selects therein
One zero movable information, then encoding device utilizes the process complexity that this zero movable information performs the encoding operation
Higher.Similarly, decoding device there is also this problem equally.
Summary of the invention
The many aspects of the application provide coding, coding/decoding method and the equipment of a kind of bidirectional predictive picture sheet,
In order to reduce the process complexity that encoding device utilizes zero movable information to perform the encoding operation, and reduce solution
Decoding apparatus utilizes zero movable information to be decoded the process complexity of operation.
The one side of the application, it is provided that the coding/decoding method of a kind of bidirectional predictive picture sheet, described bi-directional predicted
Image sheet includes that at least one image block, described method include:
Receive code stream, described code stream comprises fusion mode instruction and movable information indicates, described fusion mould
Formula instruction is fusion mode for the coding mode indicating described image block to be used, and described movable information refers to
Show the fusion mode movable information for indicating the described image block of coding to be used；
Indicate according to described fusion mode, utilize zero movable information, construct fusion mode movable information list,
Described zero movable information includes the first instruction, and described first instruction is single directional prediction for indication predicting mode；
In described fusion mode movable information list, it is thus achieved that described movable information instruction indicated by described
Fusion mode movable information；
Utilize described fusion mode movable information, be decoded operation.
The another aspect of the application, it is provided that the coded method of a kind of bidirectional predictive picture sheet, described Two-way
Mapping photo includes that at least one image block, described method include:
Determine that the coding mode that described image block is used is fusion mode；
According to described fusion mode, utilize zero movable information, construct fusion mode movable information list, institute
Stating zero movable information and include the first instruction, described first instruction is single directional prediction for indication predicting mode；
In described fusion mode movable information list, select a fusion mode movable information；
Utilize described fusion mode movable information, described image block is encoded, the code stream of described coding
In comprise fusion mode instruction and movable information indicate, described fusion mode instruction be used for indicating described image
The coding mode that block is used is fusion mode, and the instruction of described movable information is used for indicating the described image of coding
The described fusion mode movable information that block is used.
The another aspect of the application, it is provided that the decoding device of a kind of bidirectional predictive picture sheet, described Two-way
Mapping photo includes that at least one image block, described equipment include:
Receive unit, be used for receiving code stream, and by described bit stream to structural unit, acquisition unit
And decoding unit, described code stream comprises fusion mode instruction and movable information indicates, described fusion mode
Instruction is fusion mode for the coding mode indicating described image block to be used, and described movable information indicates
The fusion mode movable information that described image block is used is encoded for indicating；
Described structural unit, for indicating according to described fusion mode, utilizes zero movable information, and structure melts
Syntype movable information list, described zero movable information includes that the first instruction, described first instruction are used for referring to
Show that prediction mode is single directional prediction；
Described acquisition unit, in described fusion mode movable information list, it is thus achieved that described motion letter
Described fusion mode movable information indicated by breath instruction, and by described fusion mode motion information transmission
To decoding unit；
Described decoding unit, is used for utilizing described fusion mode movable information, is decoded operation.
The another aspect of the application, it is provided that the encoding device of a kind of bidirectional predictive picture sheet, described Two-way
Mapping photo includes that at least one image block, described equipment include:
Determine unit, for determining that the coding mode that described image block is used is fusion mode, and will
Described fusion mode is transferred to structural unit and coding unit；
Described structural unit, for according to described fusion mode, utilizes zero movable information, structure to merge mould
Formula movable information list, described zero movable information includes the first instruction, and described first instruction is used for indicating pre-
Survey mode is single directional prediction, is transferred to described fusion mode movable information list select unit；
Described selection unit, in described fusion mode movable information list, selects one to merge mould
Formula movable information, and give described coding unit by described fusion mode motion information transmission；
Described coding unit, is used for utilizing described fusion mode movable information, compiles described image block
Code, comprises fusion mode instruction in the code stream of described coding and movable information indicates, and described fusion mode refers to
Showing that for the coding mode indicating described image block to be used be fusion mode, the instruction of described movable information is used
The described fusion mode movable information that described image block is used is encoded in instruction.
As shown from the above technical solution, the embodiment of the present application is by utilizing zero movable information, and structure merges mould
Formula movable information list, described zero movable information includes the first instruction, and described first instruction is used for indicating pre-
Survey mode is single directional prediction, thus reduces the place that encoding device utilizes zero movable information to perform the encoding operation
Reason complexity, or reduce decoding device utilize zero movable information be decoded operation process complexity.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing in the description of face is some embodiments of the application, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow process signal of the coding/decoding method of the bidirectional predictive picture sheet that Fig. 1 provides for the application one embodiment
Figure；
The flow process signal of the coded method of the bidirectional predictive picture sheet that Fig. 2 provides for another embodiment of the application
Figure；
The structural representation of the decoding device of the bidirectional predictive picture sheet that Fig. 3 provides for another embodiment of the application
Figure；
The structural representation of the encoding device of the bidirectional predictive picture sheet that Fig. 4 provides for another embodiment of the application
Figure.
Detailed description of the invention
For making the purpose of the embodiment of the present application, technical scheme and advantage clearer, below in conjunction with this Shen
Please accompanying drawing in embodiment, the technical scheme in the embodiment of the present application is clearly and completely described,
Obviously, described embodiment is some embodiments of the present application rather than whole embodiments.Based on
Embodiment in the application, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of the application protection.
It addition, the terms "and/or", a kind of incidence relation describing affiliated partner, represent
Three kinds of relations, such as, A and/or B can be there are, can represent: individualism A, there is A simultaneously
And B, individualism B these three situation.It addition, character "/" herein, typically represent forward-backward correlation pair
As if the relation of a kind of "or".
The flow process signal of the coding/decoding method of the bidirectional predictive picture sheet that Fig. 1 provides for the application one embodiment
Figure, described bidirectional predictive picture sheet includes at least one image block.As it is shown in figure 1, the present embodiment is double
Coding/decoding method to prognostic chart photo may include that
101, receive code stream, described code stream comprises fusion mode instruction and movable information indicate, described in melt
Syntype instruction is fusion mode for the coding mode indicating described image block to be used, and described motion is believed
Breath instruction encodes, for indicating, the fusion mode movable information that described image block is used.
102, indicate according to described fusion mode, utilize zero movable information, construct fusion mode movable information
List, described zero movable information includes that the first instruction, described first instruction are single for indication predicting mode
To prediction.
103, in described fusion mode movable information list, it is thus achieved that indicated by the instruction of described movable information
Described fusion mode movable information.
104, utilize described fusion mode movable information, be decoded operation.
Specifically, the single directional prediction indicated by described first instruction can be forward prediction, or all right
For back forecast, this is not defined by the present embodiment.
Owing to described zero movable information specifically can include the first instruction, described first instruction is used for indicating pre-
Survey mode is single directional prediction, say, that the prediction mode that described zero movable information is used is unidirectional pre-
Survey.
Such as, described first instruction can comprise two binary character labellings, the first binary character mark
Note and the second binary character labelling.Wherein whether the first binary character labelling indicates described predictive mode
For forward prediction, wherein the second binary character labelling indicates whether described predictive mode is back forecast.
Specifically, the first binary character labelling can be set to 1 be set to by second binary character labelling
0 represents forward prediction, or the first binary character labelling can also be set to 0 and enter the two or two
Sign flag processed is set to 1 to represent back forecast.
Again for example, it is also possible to only indicate described single directional prediction to be forward prediction with a binary character labelling
Or back forecast.Specifically, described binary character labelling can be set to 0 expression forward prediction,
The most described binary character labelling is set to 1 expression back forecast, or it is also possible that states two
Hex notation labelling is set to 1 expression forward prediction, then be then set to by described binary character labelling
0 represents back forecast.
Alternatively, in a possible implementation of the present embodiment, in 102, specifically can root
Movable information and/or the neighbouring movable information of movable information structure of time contiguous block, root according to spatial neighbor block
Described fusion mode movable information list is constructed according to described neighbouring movable information.For example, it is possible to by described neighbour
Nearly movable information adds in an empty list, thus structure obtains described fusion mode movable information list.
If described fusion mode movable information list is not filled full, then can be further according to described neighbouring
Movable information tectonic association movable information, adds the motion of described fusion mode to by described aggregate motion information
In information list；If described fusion mode movable information list is not the most filled full, the most all right
The reference picture list determined according to described prediction mode further constructs described zero movable information, by described
Zero movable information adds in described fusion mode movable information list.
It should be noted that the fusion mode motion that described fusion mode movable information list can comprise
The maximum quantity of information is a preset value, if the fusion mode fortune in described fusion mode movable information list
Dynamic information content is not up to this preset value, then it is assumed that described fusion mode movable information list is not filled
Full.
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther include the second instruction, described second instruction for instruction described prediction mode determine with reference to figure
As the reference picture in list.
Such as, if described prediction mode is forward prediction, then described second instruction (such as, ref_idx)
Then can serve to indicate that at the reference picture list (i.e. forward direction reference picture list) that described forward prediction determines
In determine a reference picture；Owing to forward prediction will not use backward reference picture list, therefore, phase
Ying Di, it is also possible to farther including another instruction (such as, ref_idx), the value of this instruction is permissible
Arbitrarily arrange, the reference picture list (the most backward reference picture list) determined at back forecast for instruction
In determine any one reference picture, or be used for indicating that this instruction is invalid (such as ,-1 or-2 etc. is less than
The number of 0).
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther including the 3rd instruction, described 3rd instruction is for indicating in the reference indicated by described second instruction
Displacement in image is 0.
Such as, if described prediction mode is forward prediction, then described 3rd instruction (such as, (0,0))
Then can serve to indicate that described second indicate in the reference picture indicated by (such as, ref_idx) (0,
0) this position, determines the prediction signal required for described decoding；Owing to forward prediction will not use backward
Reference picture list, therefore, correspondingly, it is also possible to farther include another instruction, taking of this instruction
Value can arbitrarily arrange (such as, (0,0)), the reference picture determined at back forecast for instruction
(0,0) in any one reference picture determined by list (the most backward reference picture list) this
Individual position, or be used for indicating this instruction invalid.
If it is understood that when constructing described zero movable information, employing the fusion mode of acquiescence
Movable information, then the fusion mode movable information of described acquiescence can also include described first instruction.
Correspondingly, if described prediction mode is forward prediction, then the fusion mode motion letter of described acquiescence
Breath can further include an instruction, the reference picture that this instruction determines at forward prediction for instruction
An Advanced Video (such as, ref_idx=0) in list；Further, it is also possible to further
Including an instruction again, this instruction is for indicating the position in described Advanced Video (ref_idx=0)
Shifting is 0, i.e. (0,0).
In the present embodiment, by utilizing zero movable information, construct fusion mode movable information list, described
Zero movable information includes the first instruction, and described first instruction is single directional prediction for indication predicting mode, from
And reduce decoding device and utilize zero movable information to be decoded the process complexity of operation, such as, number
It is down to utilize the half of other bi-directional predicted fusion mode movable information according to being loaded into burden, or saves
Utilize other bi-directional predicted fusion mode movable information carry out bi-directional predicted in weighted mean operation
Operation etc..
It addition, the technical scheme that the present embodiment provides, video compression efficiency is not affected.
The flow process signal of the coded method of the bidirectional predictive picture sheet that Fig. 2 provides for another embodiment of the application
Figure, described bidirectional predictive picture sheet includes at least one image block.As in figure 2 it is shown, the present embodiment is double
Coded method to prognostic chart photo may include that
201, determine that the coding mode that described image block is used is fusion mode.
202, according to described fusion mode, utilize zero movable information, construct fusion mode movable information list,
Described zero movable information includes the first instruction, and described first instruction is single directional prediction for indication predicting mode.
203, in described fusion mode movable information list, a fusion mode movable information is selected.
204, utilize described fusion mode movable information, described image block is encoded, described coding
Comprising fusion mode instruction in code stream and movable information indicates, the instruction of described fusion mode is used for indicating described
The coding mode that image block is used is fusion mode, and the instruction of described movable information is used for indicating coding described
The described fusion mode movable information that image block is used.
Specifically, the single directional prediction indicated by described first instruction can be forward prediction, or all right
For back forecast, this is not defined by the present embodiment.
Owing to described zero movable information specifically can include the first instruction, described first instruction is used for indicating pre-
Survey mode is single directional prediction, say, that the prediction mode that described zero movable information is used is unidirectional pre-
Survey.
Such as, described first instruction can comprise two binary character labellings, the first binary character mark
Note and the second binary character labelling.Wherein whether the first binary character labelling indicates described predictive mode
For forward prediction, wherein the second binary character labelling indicates whether described predictive mode is back forecast.
Specifically, the first binary character labelling can be set to 1 be set to by second binary character labelling
0 represents forward prediction, or the first binary character labelling can also be set to 0 and enter the two or two
Sign flag processed is set to 1 to represent back forecast.
Again for example, it is also possible to only indicate described single directional prediction to be forward prediction with a binary character labelling
Or back forecast.Specifically, described binary character labelling can be set to 0 expression forward prediction,
The most described binary character labelling is set to 1 expression back forecast, or it is also possible that states two
Hex notation labelling is set to 1 expression forward prediction, then be then set to by described binary character labelling
0 represents back forecast.
Alternatively, in a possible implementation of the present embodiment, in 202, specifically can root
Movable information and/or the neighbouring movable information of movable information structure of time contiguous block, root according to spatial neighbor block
Described fusion mode movable information list is constructed according to described neighbouring movable information.For example, it is possible to by described neighbour
Nearly movable information adds in an empty list, thus structure obtains described fusion mode movable information list.
If described fusion mode movable information list is not filled full, then can be further according to described neighbouring
Movable information tectonic association movable information, adds the motion of described fusion mode to by described aggregate motion information
In information list；If described fusion mode movable information list is not the most filled full, the most all right
The reference picture list determined according to described prediction mode further constructs described zero movable information, by described
Zero movable information adds in described fusion mode movable information list.
It should be noted that the fusion mode motion that described fusion mode movable information list can comprise
The maximum quantity of information is a preset value, if the fusion mode fortune in described fusion mode movable information list
Dynamic information content is not up to this preset value, then it is assumed that described fusion mode movable information list is not filled
Full.
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther include the second instruction, described second instruction for instruction described prediction mode determine with reference to figure
As the reference picture in list.
Such as, if described prediction mode is forward prediction, then described second instruction (such as, ref_idx)
Then can serve to indicate that at the reference picture list (i.e. forward direction reference picture list) that described forward prediction determines
In determine a reference picture；Owing to forward prediction will not use backward reference picture list, therefore, phase
Ying Di, it is also possible to farther including another instruction, (such as, the value of this instruction can arbitrarily be arranged
Ref_idx), the reference picture list (the most backward reference picture list) determined at back forecast for instruction
In determine any one reference picture, or be used for indicating that this instruction is invalid (such as ,-1 or-2 etc. is less than
The number of 0).
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther including the 3rd instruction, described 3rd instruction is for indicating in the reference indicated by described second instruction
Displacement in image is 0.
Such as, if described prediction mode is forward prediction, then described 3rd instruction (such as, (0,0))
Then can serve to indicate that described second indicate in the reference picture indicated by (such as, ref_idx) (0,
0) this position, determines the prediction signal required for described decoding；Owing to forward prediction will not use backward
Reference picture list, therefore, correspondingly, it is also possible to farther include another instruction, taking of this instruction
Value can arbitrarily arrange (such as, (0,0)), the reference picture determined at back forecast for instruction
(0,0) in any one reference picture determined by list (the most backward reference picture list) this
Individual position, or be used for indicating this instruction invalid.
If it is understood that when constructing described zero movable information, employing the fusion mode of acquiescence
Movable information, then the fusion mode movable information of described acquiescence can also include described first instruction.
Correspondingly, if described prediction mode is forward prediction, then the fusion mode motion letter of described acquiescence
Breath can further include an instruction, the reference picture that this instruction determines at forward prediction for instruction
An Advanced Video (such as, ref_idx=0) in list；Further, it is also possible to further
Indicating including another, this instruction is for indicating the position in described Advanced Video (ref_idx=0)
Shifting is 0, i.e. (0,0).
In the present embodiment, by utilizing zero movable information, construct fusion mode movable information list, described
Zero movable information includes the first instruction, and described first instruction is single directional prediction for indication predicting mode, from
And reduce encoding device and utilize zero movable information to be decoded the process complexity of operation, such as, data
It is loaded into burden and is down to utilize the half of other bi-directional predicted fusion mode movable information, or eliminate profit
With other bi-directional predicted fusion mode movable information carry out bi-directional predicted in weighted mean operation operation
Deng.
It addition, the technical scheme that the present embodiment provides, video compression efficiency is not affected.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore by its all table
Stating as a series of combination of actions, but those skilled in the art should know, the application is by being retouched
The restriction of the sequence of movement stated because according to the application, some step can use other orders or with
Shi Jinhang.Secondly, those skilled in the art also should know, embodiment described in this description all belongs to
In preferred embodiment, necessary to involved action and module not necessarily the application.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has in certain embodiment
The part described in detail, may refer to the associated description of other embodiments.
The structural representation of the decoding device of the bidirectional predictive picture sheet that Fig. 3 provides for another embodiment of the application
Figure, described bidirectional predictive picture sheet includes at least one image block, as it is shown on figure 3, the present embodiment is double
Can include receiving unit 31, structural unit 32, obtaining unit 33 to the decoding device of prognostic chart photo
With decoding unit 34.Wherein, receive unit 31 and be used for receiving code stream, and described bit stream is given
Structural unit 32, obtain unit 33 and decoding unit 34, described code stream comprises fusion mode instruction and
Movable information indicates, and the instruction of described fusion mode for the coding mode indicating described image block to be used is
Fusion mode, the instruction of described movable information encodes, for indicating, the fusion mode fortune that described image block is used
Dynamic information；Structural unit 32, for indicating according to described fusion mode, utilizes zero movable information, and structure melts
Syntype movable information list, described zero movable information includes that the first instruction, described first instruction are used for referring to
Show that prediction mode is single directional prediction；Obtain unit 33 to be used in described fusion mode movable information list,
Obtain the described fusion mode movable information indicated by the instruction of described movable information, and by described fusion mould
Formula motion information transmission is to decoding unit 34；Decoding unit 34 is used for utilizing described fusion mode motion letter
Breath, is decoded operation.
Specifically, the single directional prediction indicated by described first instruction can be forward prediction, or all right
For back forecast, this is not defined by the present embodiment.
Owing to described zero movable information specifically can include the first instruction, described first instruction is used for indicating pre-
Survey mode is single directional prediction, say, that the prediction mode that described zero movable information is used is unidirectional pre-
Survey.
Such as, described first instruction can comprise two binary character labellings, the first binary character mark
Note and the second binary character labelling.Wherein whether the first binary character labelling indicates described predictive mode
For forward prediction, wherein the second binary character labelling indicates whether described predictive mode is back forecast.
Specifically, the first binary character labelling can be set to 1 by the second binary character by structural unit 32
Labelling is set to 0 to represent forward prediction, or the first binary character labelling can also be set to 0
Second binary character labelling is set to 1 to represent back forecast.
The most such as, structural unit 32 only can also indicate described single directional prediction with a binary character labelling
For forward prediction or back forecast.Specifically, structural unit 32 can be by described binary character labelling
It is set to 0 expression forward prediction, then then described binary character labelling is set to 1 expression backward pre-
Survey, or structural unit 32 be set to 1 expression forward prediction it is also possible that state binary character labelling,
The most described binary character labelling is set to 0 expression back forecast.
Alternatively, in a possible implementation of the present embodiment, structural unit 32 specifically can root
Movable information and/or the neighbouring movable information of movable information structure of time contiguous block, root according to spatial neighbor block
Described fusion mode movable information list is constructed according to described neighbouring movable information.Such as, structural unit 32
Described neighbouring movable information can be added in an empty list, thus structure obtains described fusion mode
Movable information list.If described fusion mode movable information list is not filled full, structural unit 32
Then further according to described neighbouring movable information tectonic association movable information, described aggregate motion can be believed
Breath adds in described fusion mode movable information list；If described fusion mode movable information list does not has
It is filled full, the reference picture that structural unit 32 then can also determine according to described prediction mode further
Zero movable information described in lists construction, adds described zero movable information to described fusion mode movable information
In list.
It should be noted that the fusion mode motion that described fusion mode movable information list can comprise
The maximum quantity of information is a preset value, if the fusion mode fortune in described fusion mode movable information list
Dynamic information content is not up to this preset value, then it is assumed that described fusion mode movable information list is not filled
Full.
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther include the second instruction, described second instruction for instruction described prediction mode determine with reference to figure
As the reference picture in list.
Such as, if described prediction mode is forward prediction, then described second instruction (such as, ref_idx)
Then can serve to indicate that at the reference picture list (i.e. forward direction reference picture list) that described forward prediction determines
In determine a reference picture；Owing to forward prediction will not use backward reference picture list, therefore, phase
Ying Di, it is also possible to farther including another instruction, (such as, the value of this instruction can arbitrarily be arranged
Ref_idx), the reference picture list (the most backward reference picture list) determined at back forecast for instruction
In determine any one reference picture, or be used for indicating that this instruction is invalid (such as ,-1 or-2 etc. is less than
The number of 0).
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther including the 3rd instruction, described 3rd instruction is for indicating in the reference indicated by described second instruction
Displacement in image is 0.
Such as, if described prediction mode is forward prediction, then described 3rd instruction (such as, (0,0))
Then can serve to indicate that described second indicate in the reference picture indicated by (such as, ref_idx) (0,
0) this position, determines the prediction signal required for described decoding；Owing to forward prediction will not use backward
Reference picture list, therefore, correspondingly, it is also possible to farther include another instruction, taking of this instruction
Value can arbitrarily arrange (such as, (0,0)), the reference picture determined at back forecast for instruction
(0,0) in any one reference picture determined by list (the most backward reference picture list) this
Individual position, or be used for indicating this instruction invalid.
If it is understood that structural unit 32 is when constructing described zero movable information, employing acquiescence
Fusion mode movable information, then the fusion mode movable information of described acquiescence can also include described
One instruction.
Correspondingly, if described prediction mode is forward prediction, then the fusion mode motion letter of described acquiescence
Breath can further include an instruction, the reference picture that this instruction determines at forward prediction for instruction
An Advanced Video (such as, ref_idx=0) in list；Further, it is also possible to further
Indicating including another, this instruction is for indicating the position in described Advanced Video (ref_idx=0)
Shifting is 0, i.e. (0,0).
In the present embodiment, decoding device utilizes zero movable information, structure fusion mode fortune by structural unit
Dynamic information list, described zero movable information includes the first instruction, and described first instruction is for indication predicting side
Formula is single directional prediction, thus reduces decoding device and utilize zero movable information to be decoded the process of operation again
Miscellaneous degree, such as, data are loaded into burden and are down to utilize the one of other bi-directional predicted fusion mode movable information
Half, or eliminate utilize other bi-directional predicted fusion mode movable information carry out bi-directional predicted in add
Weight average arithmetic operation etc..
It addition, the technical scheme that the present embodiment provides, video compression efficiency is not affected.
The structural representation of the encoding device of the bidirectional predictive picture sheet that Fig. 4 provides for another embodiment of the application
Figure, described bidirectional predictive picture sheet includes at least one image block.As shown in Figure 4, the present embodiment is double
Encoding device to prognostic chart photo can include determining that unit 41, structural unit 42, selects unit 43
With coding unit 44.Wherein it is determined that unit 41 is for determining the coding mode that described image block is used
For fusion mode, and described fusion mode is transferred to structural unit 42 and coding unit 44；Structure
Unit 42, for according to described fusion mode, utilizes zero movable information, structure fusion mode movable information row
Table, described zero movable information includes the first instruction, and described first instruction is unidirectional for indication predicting mode
Prediction, is transferred to described fusion mode movable information list select unit 43；Unit 43 is selected to be used for
In described fusion mode movable information list, select a fusion mode movable information, and by described
Fusion mode motion information transmission is to coding unit 44；Coding unit 44 is used for utilizing described fusion mode
Movable information, encodes described image block, the code stream of described coding comprises fusion mode instruction and
Movable information indicates, and the instruction of described fusion mode for the coding mode indicating described image block to be used is
Fusion mode, the instruction of described movable information encodes, for indicating, the described fusion mould that described image block is used
Formula movable information.
Specifically, the single directional prediction indicated by described first instruction can be forward prediction, or all right
For back forecast, this is not defined by the present embodiment.
Owing to described zero movable information specifically can include the first instruction, described first instruction is used for indicating pre-
Survey mode is single directional prediction, say, that the prediction mode that described zero movable information is used is unidirectional pre-
Survey.
Such as, described first instruction can comprise two binary character labellings, the first binary character mark
Note and the second binary character labelling.Wherein whether the first binary character labelling indicates described predictive mode
For forward prediction, wherein the second binary character labelling indicates whether described predictive mode is back forecast.
Specifically, the first binary character labelling can be set to 1 by the second binary character by structural unit 42
Labelling is set to 0 to represent forward prediction, or structural unit 42 can also be by the first binary character mark
Note is set to 0 and second binary character labelling is set to 1 to represent back forecast.
The most such as, structural unit 42 only can also indicate described single directional prediction with a binary character labelling
For forward prediction or back forecast.Specifically, structural unit 42 can be by described binary character labelling
It is set to 0 expression forward prediction, then then described binary character labelling is set to 1 expression backward pre-
Survey, or structural unit 42 be set to 1 expression forward prediction it is also possible that state binary character labelling,
The most described binary character labelling is set to 0 expression back forecast.
Alternatively, in a possible implementation of the present embodiment, structural unit 42 specifically can root
Movable information and/or the neighbouring movable information of movable information structure of time contiguous block, root according to spatial neighbor block
Described fusion mode movable information list is constructed according to described neighbouring movable information.Such as, structural unit 42
Described neighbouring movable information can be added in an empty list, thus structure obtains described fusion mode
Movable information list.If described fusion mode movable information list is not filled full, structural unit 42
Then according to described neighbouring movable information tectonic association movable information, described aggregate motion information can be added
In described fusion mode movable information list；If described fusion mode movable information list is not filled out
It is full of, the reference picture list structure described zero that structural unit 42 then can determine according to described prediction mode
Movable information, adds to described zero movable information in described fusion mode movable information list.
It should be noted that the fusion mode motion that described fusion mode movable information list can comprise
The maximum quantity of information is a preset value, if the fusion mode fortune in described fusion mode movable information list
Dynamic information content is not up to this preset value, then it is assumed that described fusion mode movable information list is not filled
Full.
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther include the second instruction, described second instruction for instruction described prediction mode determine with reference to figure
As the reference picture in list.
Such as, if described prediction mode is forward prediction, then described second instruction (such as, ref_idx)
Then can serve to indicate that at the reference picture list (i.e. forward direction reference picture list) that described forward prediction determines
In determine a reference picture；Owing to forward prediction will not use backward reference picture list, therefore, phase
Ying Di, it is also possible to farther including another instruction, (such as, the value of this instruction can arbitrarily be arranged
Ref_idx), the reference picture list (the most backward reference picture list) determined at back forecast for instruction
In determine any one reference picture, or be used for indicating that this instruction is invalid (such as ,-1 or-2 etc. is less than
The number of 0).
Alternatively, in a possible implementation of the present embodiment, described zero movable information is all right
Farther including the 3rd instruction, described 3rd instruction is for indicating in the reference indicated by described second instruction
Displacement in image is 0.
Such as, if described prediction mode is forward prediction, then described 3rd instruction (such as, (0,0))
Then can serve to indicate that described second indicate in the reference picture indicated by (such as, ref_idx) (0,
0) this position, determines the prediction signal required for described decoding；Owing to forward prediction will not use backward
Reference picture list, therefore, correspondingly, it is also possible to farther include another instruction, taking of this instruction
Value can arbitrarily arrange (such as, (0,0)), the reference picture determined at back forecast for instruction
(0,0) in any one reference picture determined by list (the most backward reference picture list) this
Individual position, or be used for indicating this instruction invalid.
If it is understood that structural unit 42 is when constructing described zero movable information, employing acquiescence
Fusion mode movable information, then the fusion mode movable information of described acquiescence can also include described
One instruction.
Correspondingly, if described prediction mode is forward prediction, then the fusion mode motion letter of described acquiescence
Breath can further include an instruction, the reference picture that this instruction determines at forward prediction for instruction
An Advanced Video (such as, ref_idx=0) in list；Further, it is also possible to further
Indicating including another, this instruction is for indicating the position in described Advanced Video (ref_idx=0)
Shifting is 0, i.e. (0,0).
In the present embodiment, encoding device utilizes zero movable information, structure fusion mode fortune by structural unit
Dynamic information list, described zero movable information includes the first instruction, and described first instruction is for indication predicting side
Formula is single directional prediction, thus reduces encoding device and utilize zero movable information to be decoded the process of operation again
Miscellaneous degree, such as, data are loaded into burden and are down to utilize the one of other bi-directional predicted fusion mode movable information
Half, or eliminate utilize other bi-directional predicted fusion mode movable information carry out bi-directional predicted in add
Weight average arithmetic operation etc..
It addition, the technical scheme that the present embodiment provides, video compression efficiency is not affected.
Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches
The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment
Process, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the application can be integrated in a processing unit,
Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a list
In unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ hardware adds software
The form of functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer
In read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some fingers
Make with so that a computer equipment (can be personal computer, server, or the network equipment etc.)
Or processor (processor) performs the part steps of method described in each embodiment of the application.And it is aforementioned
Storage medium include: USB flash disk, portable hard drive, read only memory (Read-Only Memory, ROM),
Random access memory (Random Access Memory, RAM), magnetic disc or CD etc. are various
The medium of program code can be stored.
Last it is noted that above example is only in order to illustrate the technical scheme of the application, rather than to it
Limit；Although the application being described in detail with reference to previous embodiment, the ordinary skill of this area
Personnel it is understood that the technical scheme described in foregoing embodiments still can be modified by it, or
Person carries out equivalent to wherein portion of techniques feature；And these amendments or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of the application each embodiment technical scheme.
Claims (16)
1. a coding/decoding method for bidirectional predictive picture sheet, described bidirectional predictive picture sheet includes at least one
Image block, it is characterised in that described method includes:
Receive code stream, described code stream comprises fusion mode instruction and movable information indicates, described fusion mould
Formula instruction is fusion mode for the coding mode indicating described image block to be used, and described movable information refers to
Show the fusion mode movable information for indicating the described image block of coding to be used；
Indicate according to described fusion mode, utilize zero movable information, construct fusion mode movable information list,
Described zero movable information includes that the first instruction, described first instruction are used for indicating described zero movable information to be adopted
Prediction mode be single directional prediction；
In described fusion mode movable information list, it is thus achieved that described movable information instruction indicated by described
Fusion mode movable information；
Utilize described fusion mode movable information, be decoded operation.
Method the most according to claim 1, it is characterised in that described utilize zero movable information, structure
Make fusion mode movable information list, including:
Movable information according to spatial neighbor block and/or the neighbouring motion of movable information structure of time contiguous block
Information, constructs described fusion mode movable information list according to described neighbouring movable information；
If described fusion mode movable information list is not filled full, then according to described neighbouring motion letter
Breath tectonic association movable information, adds described fusion mode movable information row to by described aggregate motion information
In table；
If described fusion mode movable information list is still without being filled full, then according to described prediction mode
The reference picture list that determines constructs described zero movable information, described zero movable information is added to described in melt
In syntype movable information list.
Method the most according to claim 1 and 2, it is characterised in that described zero movable information also wraps
Including the second instruction, described second instruction is for indicating in the reference picture list that described prediction mode determines
Reference picture.
Method the most according to claim 3, it is characterised in that described zero movable information also includes
Three instructions, described 3rd instruction is for indicating the displacement in the reference picture indicated by described second instruction
It is 0.
5. a coded method for bidirectional predictive picture sheet, described bidirectional predictive picture sheet includes at least one
Image block, it is characterised in that described method includes:
Determine that the coding mode that described image block is used is fusion mode；
According to described fusion mode, utilize zero movable information, construct fusion mode movable information list, institute
State zero movable information and include that the first instruction, described first instruction are used for indicating described zero movable information to be used
Prediction mode be single directional prediction；
In described fusion mode movable information list, select a fusion mode movable information；
Utilize described fusion mode movable information, described image block is encoded, the code stream of described coding
In comprise fusion mode instruction and movable information indicate, described fusion mode instruction be used for indicating described image
The coding mode that block is used is fusion mode, and the instruction of described movable information is used for indicating the described image of coding
The described fusion mode movable information that block is used.
Method the most according to claim 5, it is characterised in that described utilize zero movable information, structure
Make fusion mode movable information list, including:
Movable information according to spatial neighbor block and/or the neighbouring motion of movable information structure of time contiguous block
Information, constructs described fusion mode movable information list according to described neighbouring movable information；
If described fusion mode movable information list is not filled full, then according to described neighbouring motion letter
Breath tectonic association movable information, adds described fusion mode movable information row to by described aggregate motion information
In table；
If described fusion mode movable information list is still without being filled full, then according to described prediction mode
The reference picture list that determines constructs described zero movable information, described zero movable information is added to described in melt
In syntype movable information list.
7. according to the method described in claim 5 or 6, it is characterised in that described zero movable information also wraps
Including the second instruction, described second instruction is for indicating in the reference picture list that described prediction mode determines
Reference picture.
Method the most according to claim 7, it is characterised in that described zero movable information also includes
Three instructions, described 3rd instruction is for indicating the displacement in the reference picture indicated by described second instruction
It is 0.
9. a decoding device for bidirectional predictive picture sheet, described bidirectional predictive picture sheet includes at least one
Image block, it is characterised in that described equipment includes:
Receive unit, be used for receiving code stream, and by described bit stream to structural unit, acquisition unit
And decoding unit, described code stream comprises fusion mode instruction and movable information indicates, described fusion mode
Instruction is fusion mode for the coding mode indicating described image block to be used, and described movable information indicates
The fusion mode movable information that described image block is used is encoded for indicating；
Described structural unit, for indicating according to described fusion mode, utilizes zero movable information, and structure melts
Syntype movable information list, described zero movable information includes that the first instruction, described first instruction are used for referring to
Show that the prediction mode that described zero movable information is used is single directional prediction；
Described acquisition unit, in described fusion mode movable information list, it is thus achieved that described motion letter
Described fusion mode movable information indicated by breath instruction, and by described fusion mode motion information transmission
To decoding unit；
Described decoding unit, is used for utilizing described fusion mode movable information, is decoded operation.
Equipment the most according to claim 9, it is characterised in that described structural unit specifically for
Movable information according to spatial neighbor block and/or the neighbouring motion of movable information structure of time contiguous block
Information, constructs described fusion mode movable information list according to described neighbouring movable information；
If described fusion mode movable information list is not filled full, then according to described neighbouring motion letter
Breath tectonic association movable information, adds described fusion mode movable information row to by described aggregate motion information
In table；
If described fusion mode movable information list is still without being filled full, then according to described prediction mode
The reference picture list that determines constructs described zero movable information, described zero movable information is added to described in melt
In syntype movable information list.
11. according to the equipment described in claim 9 or 10, it is characterised in that described zero movable information
Also include the second instruction, the reference picture row that described second instruction determines in described prediction mode for instruction
Reference picture in table.
12. equipment according to claim 11, it is characterised in that described zero movable information also wraps
Including the 3rd instruction, described 3rd instruction is for indicating in the reference picture indicated by described second instruction
Displacement is 0.
The encoding device of 13. 1 kinds of bidirectional predictive picture sheets, described bidirectional predictive picture sheet includes at least one
Individual image block, it is characterised in that described equipment includes:
Determine unit, for determining that the coding mode that described image block is used is fusion mode, and will
Described fusion mode is transferred to structural unit and coding unit；
Described structural unit, for according to described fusion mode, utilizes zero movable information, structure to merge mould
Formula movable information list, described zero movable information includes that the first instruction, described first instruction are used for indicating institute
Stating the prediction mode that zero movable information used is single directional prediction, by described fusion mode movable information list
It is transferred to select unit；
Described selection unit, in described fusion mode movable information list, selects one to merge mould
Formula movable information, and give described coding unit by described fusion mode motion information transmission；
Described coding unit, is used for utilizing described fusion mode movable information, compiles described image block
Code, comprises fusion mode instruction in the code stream of described coding and movable information indicates, and described fusion mode refers to
Showing that for the coding mode indicating described image block to be used be fusion mode, the instruction of described movable information is used
The described fusion mode movable information that described image block is used is encoded in instruction.
14. equipment according to claim 13, it is characterised in that described structural unit is specifically used
In
Movable information according to spatial neighbor block and/or the neighbouring motion of movable information structure of time contiguous block
Information, constructs described fusion mode movable information list according to described neighbouring movable information；
If described fusion mode movable information list is not filled full, then according to described neighbouring motion letter
Breath tectonic association movable information, adds described fusion mode movable information row to by described aggregate motion information
In table；
If described fusion mode movable information list is still without being filled full, then according to described prediction mode
The reference picture list that determines constructs described zero movable information, described zero movable information is added to described in melt
In syntype movable information list.
15. according to the equipment described in claim 13 or 14, it is characterised in that described zero movable information
Also include the second instruction, the reference picture row that described second instruction determines in described prediction mode for instruction
Reference picture in table.
16. equipment according to claim 15, it is characterised in that described zero movable information also wraps
Including the 3rd instruction, described 3rd instruction is for indicating in the reference picture indicated by described second instruction
Displacement is 0.
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| CN201210225267.1A CN103533372B (en) | 2012-07-02 | 2012-07-02 | The coding of bidirectional predictive picture sheet, coding/decoding method and equipment |
| PCT/CN2013/073813 WO2014005447A1 (en) | 2012-07-02 | 2013-04-07 | Coding, decoding method and device of bidirectional image prediction |
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| CN201210225267.1A CN103533372B (en) | 2012-07-02 | 2012-07-02 | The coding of bidirectional predictive picture sheet, coding/decoding method and equipment |
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| US20200169757A1 (en) * | 2018-11-23 | 2020-05-28 | Mediatek Inc. | Signaling For Multi-Reference Line Prediction And Multi-Hypothesis Prediction |
| CN113453014B (en) * | 2019-06-21 | 2022-03-25 | 杭州海康威视数字技术股份有限公司 | Method and device for decoding and encoding prediction mode |
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