CN103888778B - Moving image decoding apparatus - Google Patents
Moving image decoding apparatus Download PDFInfo
- Publication number
- CN103888778B CN103888778B CN201410081212.7A CN201410081212A CN103888778B CN 103888778 B CN103888778 B CN 103888778B CN 201410081212 A CN201410081212 A CN 201410081212A CN 103888778 B CN103888778 B CN 103888778B
- Authority
- CN
- China
- Prior art keywords
- block
- available piece
- motion vector
- selection
- moving image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Dynamic image encoding device carries out motion compensated predictive coding to moving image, possesses：Obtaining section, available piece and above-mentioned available piece of the quantity as the block with motion vector is obtained from the block finished with the coding that coded object block abuts；Selector, from the block that finishes of coding it is i.e. above-mentioned available piece in select 1 selection block；Information coding unit is selected, using code table corresponding with above-mentioned available piece of quantity, the selection information of pair above-mentioned selection block of determination encodes；And Image Coding portion, the motion vector having using above-mentioned selection block, motion compensated predictive coding is carried out to above-mentioned coded object block.
Description
The application is the (PCT/ of Application No. 200980159915.4 that same applicant submitted on June 18th, 2009
The Chinese patent application of JP2009/061130), entitled " dynamic image encoding device and moving image decoding apparatus "
Divisional application.
Technical field
Motion vector is obtained the present invention relates to the image finished according to coding and decoding and carries out the motion of compensation prediction
Picture coding device and moving image decoding apparatus.
Background technology
As one of technology used in the coding of moving image, there is motion compensated prediction.In motion compensated prediction,
In dynamic image encoding device fortune is obtained using the newly encoded encoded object image of hope and obtained local decoder image
Dynamic vector, and motion compensation is carried out using the motion vector, so as to generate prognostic chart picture.
As one of method that motion vector is obtained in motion compensated prediction, there is the motion using the block finished from coding
The motion vector of coded object block derived from vector, the Direct Model of prognostic chart picture is generated (with reference to Japanese Patent No. 4020789
And U.S. Patent No. 7233621).In Direct Model, motion vector is not encoded, it is possible to cut down motion arrow
Measure the size of code of information.Direct Model is used H.264/AVC middle.
The content of the invention
In Direct Model, in the motion vector of prediction generation coded object block, by according to adjacent with coded object block
The median calculating motion vector of the motion vector for the block that the coding connect finishes generates motion vector by fixed method.Cause
This, the free degree of motion vector computation is low.In addition, used to improve the above-mentioned free degree from multiple blocks for encoding and finishing
In the case of the computational methods of the motion vector of middle selection 1, in order to represent it is selected go out the block that finishes of coding, it is necessary to all the time
The position of the block is selected into information as motion vector and sent.Therefore, size of code is caused to increase.
It is an object of the invention to provide a kind of dynamic image encoding device and moving image decoding apparatus, from having encoded
1 is selected in complete block and improves the free degree of motion vector computation, and cuts down the additional information of motion vector selection information.
The mode of the present invention provides a kind of dynamic image encoding device, and motion compensated prediction volume is carried out to moving image
Code, the dynamic image encoding device possess：Obtaining section, from the block finished with the coding that coded object block abuts, obtain as tool
There are available piece of the block of motion vector and described available piece of quantity；Selector, from the block finished as coding
Described available piece in select 1 selection block；Information coding unit is selected, using corresponding with described available piece of quantity
Code table, pair determine that the selection information of the selection block encodes；And Image Coding portion, had using the selection block
Motion vector to the coded object block carry out motion compensated predictive coding.
The another way of the present invention provides a kind of moving image decoding apparatus, and motion compensated prediction solution is carried out to moving image
Code, the moving image decoding apparatus possess：Information lsb decoder is selected, according to as with the adjoining of decoder object block and with motion arrow
Available piece of quantity switch code table of the decoding block of amount, selection information is decoded；Motion vector selector, from
Selection is as 1 motion arrow shown in the selection information decoded by the selection information lsb decoder in described available piece
Amount；And image decoding portion, using the motion vector selected by the motion vector selector, decoded object images are carried out
Motion compensated prediction decodes.
Brief description of the drawings
Fig. 1 is the block diagram of the dynamic image encoding device of embodiments of the present invention.
Fig. 2 is the flow chart for the processing step for showing dynamic image encoding device.
Fig. 3 is the flow chart for the processing step for showing obtaining section/selector.
Fig. 4 A are the figures for illustrating the method for discrimination based on block size.
Fig. 4 B are the figures for illustrating the method for discrimination based on block size.
Fig. 4 C are the figures for illustrating the method for discrimination based on block size.
Fig. 5 is to illustrate the figure based on unidirectional or bi-directional predicted method of discrimination.
Fig. 6 is the flow chart for showing to select the processing step of information coding unit.
Fig. 7 is an example of the index for selecting information.
Fig. 8 is an example of the code table for selecting information.
Fig. 9 is the outline of syntactic constructs.
Figure 10 is the data configuration of macroblock layer.
Figure 11 is the block diagram of the moving image decoding apparatus of embodiments of the present invention.
Figure 12 is the flow chart for the processing step for showing moving image decoding apparatus.
Embodiment
Hereinafter, referring to the drawings, embodiments of the present invention are illustrated.
Reference picture 1, illustrate the dynamic image encoding device of an embodiment.Subtracter 101 is configured to calculate input fortune
The difference of motion video signal 11 and prediction image signal 15 simultaneously exports predictive error signal 12.The output end of subtracter 101 via
Quadrature transformer 102 and quantizer 103 are connected to variable length coder 111.Quadrature transformer 102 is to from subtracter
101 predictive error signal 12 carries out orthogonal transformation, generates orthogonal transform coefficient, and quantizer 103 is carried out to orthogonal transform coefficient
Quantify, output quantization orthogonal transform coefficient information 13.The positive alternation of quantization of the variable length coder 111 to carrying out quantizer 103
Change coefficient information 13 and carry out variable length code.
The output end of quantizer 103 is connected to adder 106 via inverse quantizer 104 and inverse orthogonal transformation device 105.It is inverse
Quantizer 104 carries out re-quantization to quantifying orthogonal transform coefficient information 13, is transformed to orthogonal transform coefficient.Inverse orthogonal transformation device
Orthogonal transform coefficient is transformed to predictive error signal by 105.Predictive error signal of the adder 106 to inverse orthogonal transformation device 105
Add operation, generation local decoder picture signal 14 are carried out with prediction image signal 15.The output end of adder 105 is deposited via frame
Reservoir 107 is connected to motion compensated predictor 108.
Frame memory 107 preserves local decoder picture signal 14.The motion compensation that configuration part 114 sets coded object block is pre-
Survey pattern (predictive mode).Single directional prediction of the predictive mode including the use of 1 width reference picture picture and pair using 2 width reference picture pictures
To prediction.Single directional prediction includes AVC L0 predictions and L1 predictions.Motion compensated predictor 108 possesses fallout predictor 109 and obtained
Portion/selector 110.Obtaining section/selector 110 according to the block finished with the coding that coded object block abuts, obtain as with
Available piece of the block of motion vector and above-mentioned available piece of quantity, 1 selection block is selected from available piece.
Motion compensated predictor 108 generates from frame memory 107 according to local decoder picture signal 14 and input motion picture signal 11
Prediction image signal 15.Obtaining section/selector 110 selects 1 block (selection block) from the adjacent block abutted with coded object block.Example
Such as, the block selection with suitable motion vector that will abut against in block is selection block.Obtaining section/selector 110 has selection block
Some motion vector selections are the motion vector 16 for motion compensated prediction, and are sent to fallout predictor 109.In addition, obtaining section/
Selector 110 generates the selection information 17 of selection block, and is sent to variable length coder 1110
Variable length coder 111 has selection information coding unit 112.Information coding unit 112 is selected with code table
The mode switch code table of the record of the quantity equal amount of the block using block with the block with being finished as coding, and
Variable length code is carried out to selection information 17.Available piece refer to in the block that finishes of coding of coded object block adjoining
, have motion vector block.Quantization orthogonal transform coefficient information and choosing after 113 pairs of codings of multiplexer (multiplexer)
Select information to be multiplexed, outputting encoded data.
The flow chart of reference picture 2, illustrate the effect of the dynamic image encoding device of said structure.
First, predictive error signal 12 (S11) is generated.In the generation of the predictive error signal 12, motion vector is selected,
Using it is selected go out motion vector generate prognostic chart picture.The signal that the prognostic chart picture is calculated by subtracter 101 is prognostic chart
As signal 15 and the difference of input motion picture signal 11, so as to generate predictive error signal 12.
Orthogonal transformation, generation orthogonal transform coefficient (S12) are implemented to predictive error signal 12 by quadrature transformer 102.
(S13) is quantified to orthogonal transform coefficient by quantizer 103.By inverse quantizer 104 to the orthogonal transformation system after quantization
Number information carries out re-quantization (S14), afterwards, carries out inverse orthogonal transformation by inverse orthogonal transformation device 105, the prediction regenerated misses
Difference signal (S15).In adder 106, addition fortune is carried out by the predictive error signal to regeneration and prediction image signal 15
Calculate, generation local decoder picture signal 14 (S16).Local decoder picture signal 14 is saved to frame memory 107 (as reference
Image) (S17), it is input into motion compensated predictor 108 from the local decoder picture signal of the reading of frame memory 107.
The fallout predictor 109 of motion compensated predictor 108 is using motion vector 16 to local decoded image signal (reference picture
Picture) motion compensated prediction is carried out, generate prediction image signal 15.In order to obtain the difference with input motion picture signal 11, in advance
Altimetric image signal 15 is sent to subtracter 101, and then is also delivered to adder to generate local decoder picture signal 14
106。
Obtaining section/selector 110 selects 1 motion vector used in motion compensated prediction from adjacent block, by selected by
The motion vector 16 selected out is sent to fallout predictor 109, generation selection information 17.Selection information 17 is sent to selection information coding
Portion 112.When selecting motion vector from adjacent block, size of code motion vector suitable as diminishing can be selected.
Orthogonal transform coefficient information 13 after being quantified by quantizer 103 is also inputted to variable length coder 111, and implementation can
Become length coding (S18).From obtaining section/selector 110, the selection information 16 that is used in output campaign compensation prediction, and input
To selection information coding unit 112.In information coding unit 112 is selected, using in code table have with as with coded object block
Abut and have the mode of the record of the equal quantity of available piece of quantity of the block that the coding of motion vector finishes to switch
Code table, variable length code is carried out to selection information 17.By multiplexer 113 to the amount from variable length coder 111
Change orthogonal transform coefficient information and selection information is multiplexed, the bit stream (S19) of outputting encoded data 18.Coded data 18
It is sent to preservation system or transmitting path (not shown).
In the flowchart of fig. 2, step S14~S17 flow and step S18 and S19 flow can replace.That is,
Then variable length code step S18 and de-multiplexing steps S19 can be carried out by quantization step S13, and de-multiplexing steps S19 is carried out
Inverse quantization step S14~storing step S17.
Next, using the flow chart shown in Fig. 3, illustrate the effect of obtaining section/selector 110.
First, with reference to frame memory 107, search for the adjoining of coded object block, complete as the coding with motion vector
Available piece of candidate (S101) of complete block.If searching available piece of candidate, these available piece time is differentiated
The block size (S102) of the motion compensated prediction of benefit.Next, differentiate that available piece of candidate is unidirectional or bi-directional predicted
(S103).According to the predictive mode for differentiating result and coded object block, available piece is extracted out from available piece of candidate.From
1 selection block is selected in available piece extracted out, obtains information alternatively information (S104) for determining selection block.
Next, reference picture 4A~4C, illustrates the differentiation (S102) of block size.
The adjacent block used in present embodiment is positioned at a left side for coded object block coded object block, upper left, upper, upper right
Block.Therefore, in the case of the most upper left that frame is located in coded object block, due to not available with the adjoining of coded object block
Block, so can not be to the coded object block application present invention.It is available in the case where coded object block is in the upper end of picture
Block be only 1 piece of left side, be the left end of picture and not in the case of right-hand member in coded object block, available piece into
For this 2 pieces of the upper of coded object block, upper right.
In the case where macroblock size is 16 × 16 sizes, block size such as Fig. 4 A~4C of the motion compensated prediction of adjacent block
It is shown with this 4 kinds of 16 × 16 sizes, 16 × 8 sizes, 8 × 16 sizes, 8 × 8 sizes.When considering these 4 kinds, can turn into
Available piece of adjacent block is such 20 kinds shown in Fig. 4 A~4C.Be 4 kinds i.e., under 16 × 16 sizes shown in Fig. 4 A,
It is 10 kinds under 16 × 8 sizes and 8 × 16 sizes shown in Fig. 4 B, under the 8x8 sizes shown in Fig. 4 C is 6 kinds.In block chi
In very little differentiation (S102), available piece is searched for according to block size from this 20 kinds block.For example, by available piece
In the case that size is set to only 16 × 16, available piece determined under the block size is 16 × 16 sizes as shown in Figure 4 A
4 kinds of blocks.That is, available piece be the block of upper left side of coded object block, coded object block upside block, coded object block
Left side block and coded object block upper right side block.In addition, it is extended to more than 16 × 16 sizes for macroblock size
Situation, be also with macroblock size 16 × 16 sizes situation in the same manner as can obtain available piece.For example, in macroblock size
In the case of being 32 × 32 sizes, the block size of the motion compensated prediction of adjacent block have 32 × 32 sizes, 32 × 16 sizes, 16 ×
This 4 kinds of 32 sizes, 16 × 16 sizes, it can be 20 kinds as available piece of adjacent block.
Next, reference picture 5, it is unidirectional or bi-directional predicted to illustrate to be carried out by obtaining section/selector 110 to enumerate example
Differentiation (S103).
For example, block size is limited into 16 × 16, for coded object block, the unidirectional or bi-directional predicted of adjacent block is
Situation as shown in Figure 5.In unidirectional or bi-directional predicted differentiation (S103), searched for according to the direction of prediction available
Block.For example, available piece that the adjacent block including prediction direction L0 is set to determine in prediction direction.That is, Fig. 5 (a)
It is shown, coded object block it is upper, left and right on block turn into available piece determined in prediction direction.In the situation
Under, without using the block of the upper left of coded object block.If the adjacent block including prediction direction L1 is set to sentence by Forecasting Methodology
Available piece made, then shown in Fig. 5 (b), the block of the upper left of coded object block and upside turns into prediction direction
Available piece determined.In this case, without using a left side for coded object block and the block of upper right.If prediction will be included
Direction L0/L1 adjacent block is set to available piece determined by Forecasting Methodology, then only shown in Fig. 5 (c), coded object
The block of the upside of block turns into available piece determined in prediction direction.In this case, without using coded object block
Left, upper left and the block of upper right.In addition, the prediction direction for the L0 predictions (L1 predictions) that prediction direction L0 (L1) corresponds in AVC.
Next, the flow chart shown in reference picture 6, illustrates to select information coding unit 112.
From the adjacent block abutted with coded object block, search can be sharp as the block that finishes of coding with motion vector
Block, obtain by block size and the unidirectional or bi-directional predicted available block message (S201) determined.Can using this
The block message utilized, carry out the switching (S202) of code table corresponding with available piece of quantity as shown in Figure 8.Use
Code table after switching, variable length code (S203) is carried out to the selection information 17 sent from obtaining section/selector 110.
Next, reference picture 7, illustrates an example for selecting the index of information.
In the case of shown in such as Fig. 7 (a) without available piece, the present invention may not apply to the block, so not sending out
Send to be elected and select information.In the case where available piece shown in such as Fig. 7 (b) is 1, used in the motion compensation of coded object block
Available piece of motion vector uniquely determine, so not sending selection information.Available as shown in Fig. 7 (c)
In the case that block is 2, the selection information of index 0 or 1 is sent.It is the feelings of 3 at available piece shown in such as Fig. 7 (d)
Under condition, the selection information of index 0,1 or 2 is sent.In the case where available piece shown in such as Fig. 7 (e) is 4, send
The selection information of index 0,1,2 or 3.
In addition, an example of the addition method as available piece of index, according to a left side for coded object block, a left side
Upper, the upper, order of upper right, the example that index is addition of to available piece are as shown in Figure 7.That is, remove without using block and it is right
The used continuous additional index of block.
Next, reference picture 8, illustrates the code table for selecting information 17.
In information coding unit 112 is selected, the switching (S202) of code table is carried out according to available piece of quantity.As above
It is described, it is necessary to which what selection information 17 was encoded is available piece for the situation of more than 2.
First, in the case where available piece is 2, index needs 0 and 1, and code table is as shown in Fig. 8 left side
Table.In the case where available piece is 3, index turns into 0,1,2, table of the code table shown in as Fig. 8 center.Can profit
In the case that block is 4, index needs 0,1,2,3, table of the code table shown in as Fig. 8 right side.According to available
The quantity of block, switch these code tables.
Next, the coding method of explanation selection information.
Fig. 9 shows the outline of the construction of the grammer used in the present embodiment.Grammer is mainly made up of 3 parts,
High Level Syntax801 (high-level syntax) are received in the syntactic information of the upper layer of the section above.In Slice Level
In Syntax804 (slice-level grammer), there is required information for the bright note of each section, in Macroblock Level
In Syntax807 (macroblock level syntax), there are error signal, pattern after required variable length code for the bright note of each macro block
Information etc..
These syntaxes are respectively by more detailed Grammatical composition, in High Level Syntax801, by Sequence
Parameter set syntax (time sequence parameter group grammer) 802 and Picture parameter set syntax (join by picture
Array grammer) sequences such as 803, the Grammatical composition of picture level.In Slice Level Syntax804, by Slice header
Syntax (section head grammer) 405, the grades of Slice data syntax (slice of data grammer) 406 are formed.And then
Macroblock Level Syntax807 are by macroblock layer syntax (macroblock-layer syntax) 808, macroblock
The grades of prediction syntax (macroblock prediction grammer) 809 are formed.
Required syntactic information is macroblock layer syntax808 in the present embodiment, illustrates language below
Method.
Available_block_num shown in Figure 10 (a) (b) represents available piece of quantity, its be more than 2
In the case of, it is necessary to select the coding of information.In addition, mvcopy_flag be represent in motion compensated prediction whether use can profit
The mark of the motion vector of block, in the case where available piece is more than 1 and the mark is 1, it can be mended in motion
Repay the motion vector using available piece in prediction.And then mv_select_info represents selection information, code table as above institute
State.
Figure 10 (a) shows the syntax of situation about being encoded after mb_type to selection information.In such as block size only
In the case of 16 × 16, if mb_type is not 16 × 16, without to mvcopy_flag and mv_select_info
Encoded.If mb_type is 16x16, mvcopy_flag and mv_select_info are encoded.
Figure 10 (b) shows the grammer of situation about being encoded before mb_type to selection information.If such as
Mvcopy_flag is 1, then without being encoded to mb_type.If mv_copy_flag is 0, mb_type is compiled
Code.
In the present embodiment, can be arbitrary order for the scanning sequency of coding.For example, row scanning, Z are swept
The present invention can be applied by retouching etc..
Reference picture 11, illustrate the moving image decoding apparatus of other embodiment.
Using from the coded data 18 of Fig. 1 dynamic image encoding device output via the system of preservation or transmission system as
The coded data 21 of decoder object is input to the inverse multiplexing device 201 of moving image decoding apparatus.Inverse multiplexing device (demultiplexer)
201 pairs of coded datas 21 carry out inverse multiplexing, and coded data 21 is separated into and quantifies orthogonal transform coefficient information and selection information.
The output end of inverse multiplexing device 201 is connected to variable-length decoder 202.Variable-length decoder 202 is to quantifying orthogonal transformation system
Number information and selection information are decoded.By the output end of variable-length decoder 202 via inverse quantizer 204 and against just
AC-AC converter 205 is connected to adder 206.Inverse quantizer 204 carries out re-quantization to quantifying orthogonal transform coefficient information, is transformed to
Orthogonal transform coefficient.Inverse orthogonal transformation device 205 carries out inverse orthogonal transformation to orthogonal transform coefficient, is generated as predictive error signal.
Predictive error signal is added to the prediction image signal from prognostic chart picture maker 207, generation moving image letter by adder 206
Number.
Prognostic chart picture maker 207 includes fallout predictor 208 and selector 209.Selector 209 is by by length-changeable decoding
The selection information 23 that the selection info decoder 203 of device 202 has decoded selects motion vector, and selection motion vector 25 is sent to
Fallout predictor 208.Fallout predictor 208 carries out motion compensation by motion vector 25 to the reference picture picture preserved in frame memory 210, raw
Into prognostic chart picture.
The flow chart of reference picture 12, illustrate the effect of the moving image decoding apparatus of said structure.
Inverse multiplexing (S31) is carried out to coded data 21 by inverse multiplexing device 201, carried out by variable-length decoder 202
Decoding, generating quantification orthogonal transform coefficient information 22 (S32).In addition, by selecting info decoder 203, investigation and decoding pair
As the state for the adjacent block that block abuts, available piece of the block finished according to the coding as the adjoining with motion vector
Quantity, in the same manner as the selection information coding unit 112 of code device, as shown in Figure 8 switch code table and decoded.By
This, output selection information 23 (S33).
As from variable decoder 202 export it is information, quantify after orthogonal transform coefficient information 22 be sent to it is inverse
Quantizer 204, selector 209 is sent to as information, the selection information 23 exported from selection information lsb decoder 203.
Re-quantization (S34) is carried out to quantifying orthogonal transform coefficient information 22 by inverse quantizer 204, afterwards, by against just
AC-AC converter 205 carries out inverse orthogonal transformation (S35).Thus, predictive error signal 24 is obtained.Prediction is missed in adder 206
Difference signal 24 adds prediction image signal, so as to regenerate motion image signal 26 (S36).The motion image signal 27 regenerated is protected
It is stored to frame memory 210 (S37).
In prognostic chart picture maker 207, using the selection information 23 by being decoded it is selecting, be used as and decoding
Object block is adjacent and has available piece of motion vector of both decoding blocks of motion vector, generates prognostic chart picture 26.Selecting
Select in portion 209, investigate the state of adjacent block, solved according to the available block message of adjacent block and by selection information lsb decoder 203
The selection information 23 that code goes out, in the same manner as obtaining section/selector 110 of code device, 1 motion compensation is selected from adjacent block
The motion vector used in prediction.The motion vector 25 selected using this, prognostic chart picture 26 is generated by fallout predictor 208, and
And prognostic chart picture 26 is sent to adder 206 in order to obtain motion image signal 27.
According to the present invention, encoded, can used suitable by pair selection information corresponding with available piece of quantity
The coding schedule of conjunction sends selection information, can cut down the additional information of selection information.
In addition, the motion compensated prediction by the way that available piece of motion vector to be used for coded object block, can cut down
The additional information related to motion vector information.
And then 1 suitable block is selected from available piece by unfixed motion vector calculating method, compared to straight
Pattern is connect, the free degree of motion vector computation uprises.
The gimmick of the invention that embodiments of the present invention are recorded can be performed by computer, also, be also used as
The program that can perform computer, is saved in disk (floppy disk, hard disk etc.), CD (CD-ROM, DVD etc.), semiconductor storage
The recording mediums such as device and issue.
In addition, the invention is not restricted to above-mentioned embodiment, can make in implementation phase in the range of its main idea is not departed from
Inscape is deformed and embodied.Furthermore it is possible to by the suitable combination of multiple inscapes disclosed in above-mentioned embodiment,
Form various inventions.For example, it is also possible to delete several inscapes from all inscapes shown in embodiment.And then
The inscape of different embodiments can also suitably be combined.
Industrial applicability
The device of the present invention is used in the image Compression in communication, preservation and broadcast.
Claims (5)
1. a kind of moving image decoding apparatus, motion compensated prediction decoding, the moving image decoding apparatus are carried out to moving image
Possess：
Obtaining section, from the block finished with the decoding that decoder object block abuts, obtain as the available of the block with motion vector
Block and described available piece of quantity；
Multiple code tables, the quantity with described available piece are corresponding；
Information lsb decoder is selected, is carried out using by block size and the unidirectional or bi-directional predicted available block message determined
The switching of multiple code tables, the selection information for determining selection block using the code table pair after switching decode；
Selector, according to the selection information, 1 selection block is selected from described available piece；And
Image decoding portion, the motion vector having using the selection block, motion compensated prediction is carried out to the decoder object block
Decoding.
2. moving image decoding apparatus according to claim 1, it is characterised in that
Each of the multiple code table is with the code table with the record of described available piece of quantity equal amount.
3. moving image decoding apparatus according to claim 2, it is characterised in that
When there is 2 available piece, selection includes the code table of two indexes 0 and 1；
When there is 3 available piece, selection includes the code table of index 0,1 and 2；
Using the code table of the record with the quantity equal amount with available piece come true from described available piece decoding
The selection information of a fixed selection block.
4. moving image decoding apparatus according to claim 3, it is characterised in that
The obtaining section according to single directional prediction or it is bi-directional predicted from multiple available piece of candidates by with motion vector
It is described available piece that the block of specific block size, which obtains,.
5. moving image decoding apparatus according to claim 4, it is characterised in that
Configuration part is also equipped with, the predictive mode of the decoder object block is set as
(A) using only the 1st vector the 1st single directional prediction,
(B) using only the 2nd vector the 2nd single directional prediction and
(C) using the 2nd vector this two side described in the 1st vector it is bi-directional predicted in some,
It is described available piece that the obtaining section, which obtains the block of the specific block size with motion vector, and the motion vector is
In order to carry out motion compensated prediction and required motion vector to the decoder object block under the predictive mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081212.7A CN103888778B (en) | 2009-06-18 | 2009-06-18 | Moving image decoding apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081212.7A CN103888778B (en) | 2009-06-18 | 2009-06-18 | Moving image decoding apparatus |
| CN200980159915.4A CN102461172B (en) | 2009-06-18 | 2009-06-18 | Dynamic image encoding device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980159915.4A Division CN102461172B (en) | 2009-06-18 | 2009-06-18 | Dynamic image encoding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103888778A CN103888778A (en) | 2014-06-25 |
| CN103888778B true CN103888778B (en) | 2017-12-08 |
Family
ID=50957466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410081212.7A Active CN103888778B (en) | 2009-06-18 | 2009-06-18 | Moving image decoding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103888778B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498810B1 (en) * | 1997-09-12 | 2002-12-24 | Lg Electronics Inc. | Method for motion vector coding of MPEG-4 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1449197A (en) * | 2002-03-29 | 2003-10-15 | Lg电子株式会社 | B image mode determining method and apparatus of video coding system |
| KR100506864B1 (en) * | 2002-10-04 | 2005-08-05 | 엘지전자 주식회사 | Method of determining motion vector |
| US8155191B2 (en) * | 2004-11-04 | 2012-04-10 | Thomson Licensing | Method and apparatus for fast mode decision of B-frames in a video encoder |
| US8335261B2 (en) * | 2007-01-08 | 2012-12-18 | Qualcomm Incorporated | Variable length coding techniques for coded block patterns |
| JP2008205790A (en) * | 2007-02-20 | 2008-09-04 | Matsushita Electric Ind Co Ltd | H.264 decoder, program and recording medium |
-
2009
- 2009-06-18 CN CN201410081212.7A patent/CN103888778B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498810B1 (en) * | 1997-09-12 | 2002-12-24 | Lg Electronics Inc. | Method for motion vector coding of MPEG-4 |
Non-Patent Citations (1)
| Title |
|---|
| RD-Optimized Competition Scheme for Efficient Motion Prediction;J.Jung等;《VISUAL COMMUNICATIONS AND IMAGE PROCESSING》;20070130;第3.1.1-3.1.4节、5.1节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103888778A (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102461172B (en) | Dynamic image encoding device | |
| RU2575982C1 (en) | Method and apparatus for encoding video using block merging, and method and apparatus for decoding video using block merging | |
| CN102067601B (en) | Methods and apparatus for template matching prediction (TMP) in video encoding and decoding | |
| CN103339940B (en) | Dynamic image encoding method and dynamic image decoding method | |
| CN102939752B (en) | By the data cell execution loop filtering based on tree structure, video is carried out to the method and apparatus of encoding and decoding | |
| CN103227923A (en) | Image encoding method and image decoding method | |
| CN105791834A (en) | Picture decoding device and picture decoding method | |
| CN103416063B (en) | Moving image decoding apparatus and dynamic image decoding method | |
| CN101573985A (en) | Method and apparatus for video predictive encoding and method and apparatus for video predictive decoding | |
| CN108235034A (en) | Method for video coding and equipment and video encoding/decoding method and equipment | |
| CN101569201A (en) | Method and apparatus for encoding and decoding based on intra prediction | |
| CN104365100A (en) | Video encoding method and device and video decoding method and device for parallel processing | |
| CN105847832B (en) | Video encoding/decoding method | |
| CN104205848A (en) | Video encoding method and apparatus and video decoding method and apparatus using unified syntax for parallel processing | |
| CN101946517B (en) | Method and apparatus for encoding and decoding based on inter prediction using image inpainting | |
| CN102783148B (en) | Method and arrangement for video coding | |
| RU2660619C1 (en) | Method of encoding video with prediction of movement, device for encoding video with prediction of motion, program of encoding video with prediction of movement, method of decoding video with prediction of motion, device for decoding video with prediction of movement and program of decoding video with prediction of movement | |
| CN103430548B (en) | Dynamic image encoding device and dynamic image encoding method | |
| CN103888778B (en) | Moving image decoding apparatus | |
| CN103888772B (en) | Moving image decoding apparatus and dynamic image decoding method | |
| CN103826126B (en) | Dynamic image encoding device and dynamic image encoding method | |
| CN103826132B (en) | Moving image decoding apparatus and dynamic image decoding method | |
| CN103826127B (en) | Dynamic image encoding device and dynamic image encoding method | |
| CN110868611B (en) | Video encoding and decoding methods and devices | |
| CN107343391A (en) | Image is encoded by vector quantization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |