CN105516724A - Motion information storage and compression method - Google Patents
Motion information storage and compression method Download PDFInfo
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- CN105516724A CN105516724A CN201410485700.4A CN201410485700A CN105516724A CN 105516724 A CN105516724 A CN 105516724A CN 201410485700 A CN201410485700 A CN 201410485700A CN 105516724 A CN105516724 A CN 105516724A
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Abstract
The invention discloses a motion information storage and compression method comprising the steps of determining the size of a motion information storage unit, and exporting a group of motion information as motion information of the motion information storage unit according to multiple groups of motion information contained in the coverage area of the motion information storage unit. By using the method, storage resources occupied by motion information storage is effectively reduced, and the performance of time-domain motion vector prediction is maintained.
Description
Technical field
The present invention relates to video coding and decoding technology, particularly relate to the method for movable information store compressed in a kind of coding and decoding video.
Background technology
In video coding technique, eliminate video information redundancy over time and space by utilizing the prediction of time-domain and spatial domain.Inter-frame prediction techniques is a kind of technology being generally applied in coding and decoding video field.Inter prediction utilizes encoded frame and information that present frame comprises to there is this feature of great redundancy, adopts estimation, can greatly compress video.
During inter prediction, in order to reduce the code check of motion vector further, have employed motion-vector prediction technology.The movable information of present frame can be predicted with the movable information of the same position block of encoded frame (collocated block).In order to enable the movable information of subsequent frame present frame carry out motion-vector prediction, we need the movable information of present frame to store.
But what divide along with motion becomes more meticulous, the minimum unit of movable information can be the block of 4x4.The storage resources making movable information need like this increases greatly.Such as, when taking 4x4 as unit storing moving information, if need to store forward and backward movable information, need each memory cell of 68bits, i.e. 4.25bits/pixel.In order to reduce the size of movable information memory, HEVC have employed and movable information memory cell size is decided to be 64x64 pixel size.And using the movable information of the movable information of the 4x4 block in the upper left corner as whole movable information memory cell.The size of such memory reduces 16 times.
The scheme of HEVC can reply reduction motion vector storage size, but it also brings no small loss to coding efficiency.According to the motion JCTVC-D072 " CE9:Reducedresolutionstorageofmotionvectordata " of YepingSu and AndrewSegall, this technology can bring the performance loss of 0.4% to 0.6%.
Summary of the invention
The object of the invention is to for the weak point existing for existing movable information store compressed technology, bring larger coding efficiency loss while namely reducing movable information memory size, propose a kind of new movable information storage compacting method.This movable information storage means comprises the size determining movable information memory cell; According to many groups movable information that movable information memory cell overlay area comprises, derive the movable information of one group of movable information as this movable information memory cell.
For this reason, the first object of the present invention is a kind of method providing movable information store compressed, and the method comprises:
Determine the size of movable information memory cell;
According to the region that movable information memory cell size determination movable information memory cell covers, according to many groups movable information that movable information memory cell overlay area comprises, derive the movable information of one group of movable information as this movable information memory cell.
Further, the described size determining that the size of movable information memory cell comprises described movable information memory cell is a pre-determined value or the value passed at code stream.
Further, the described many groups movable information comprised according to movable information memory cell overlay area, derive one group of movable information as the movable information of this movable information memory cell, comprising:
With the movable information of certain pixel in the movable information memory cell overlay area movable information as whole movable information memory cell; Or
Respective handling is done to many groups movable information that movable information memory cell comprises, derives the movable information of one group of movable information as whole movable information memory cell.
Further, in described movable information memory cell overlay area, the movable information of certain pixel is as the movable information of whole movable information memory cell, comprising:
With the movable information of the pixel in the upper left corner of movable information memory cell institute overlay area, or the movable information of intermediate pixel with movable information memory cell institute overlay area, or with the movable information of the lower right corner pixel of the movable information memory cell institute overlay area movable information as whole movable information memory cell; Or
Select in movable information memory cell overlay area, cover the movable information of the maximum movable information of pixel as whole movable information memory cell.
Further, respective handling is done to many groups movable information that movable information memory cell comprises, derives the movable information of one group of movable information as whole movable information memory cell, comprising:
Process is averaging to the motion vector in described many group movable informations, using the motion vector of the motion vector after average as described movable information memory cell.
Further, according to many groups movable information that movable information memory cell overlay area comprises, derive one group of movable information as the movable information of this movable information memory cell, also comprise:
Only store forward motion vector and forward reference frame that current motion information memory cell comprises; Or
Both store forward motion vector that current motion information memory cell comprises and forward reference frame and also store the backward motion vector and backward reference frame that current motion information memory cell comprises.
The second object of the present invention is to provide a kind of movable information store compressed device, and it comprises:
Determining unit, for determining the size of movable information memory cell;
Lead-out unit, for the region covered according to movable information memory cell size determination movable information memory cell, according to many groups movable information that movable information memory cell overlay area comprises, derive the movable information of one group of movable information as this movable information memory cell.
Further, the size of described movable information memory cell is a pre-determined value or the value passed at code stream.
Further, described movable information memory cell needs the movable information that the movable information stored is certain pixel in movable information memory cell overlay area or one group of movable information of deriving after doing respective handling to many groups movable information that movable information memory cell comprises.
Further, the movable information that in described movable information memory cell overlay area, the movable information of certain pixel is the pixel in the upper left corner of movable information memory cell institute overlay area, or the movable information of the intermediate pixel of movable information memory cell institute overlay area, or the movable information of the lower right corner pixel of movable information memory cell institute overlay area, or to select in movable information memory cell overlay area cover the maximum movable information of pixel.
Further, then respective handling of doing the described many groups movable information comprised movable information memory cell derives one group of movable information as the movable information of whole movable information memory cell is be averaging process to the motion vector in described many group movable informations, using the motion vector of the motion vector after average as described movable information memory cell.
Further, described lead-out unit also comprises only storing forward motion vector and forward reference frame that current motion information memory cell comprises or both having stored forward motion vector that current motion information memory cell comprises and forward reference frame and also stores the backward motion vector and backward reference frame that current motion information memory cell comprises.
The invention has the beneficial effects as follows, the present invention when obviously reducing movable information memory size, can reduce the performance loss that movable information store compressed is brought.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the movable information store compressed schematic diagram of the embodiment of the present invention;
Fig. 2 is the flow chart of a kind of movable information storage compacting method of the present invention embodiment;
Fig. 3 is the flow chart of the present invention's another kind of movable information storage compacting method embodiment;
Fig. 4 is the flow chart of another movable information storage compacting method embodiment of the present invention;
Fig. 5 is a kind of movable information store compressed of the present invention device embodiment schematic diagram.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The method flow diagram of a kind of movable information store compressed that Fig. 2 provides for the embodiment of the present invention.The movable information storage compacting method that the present embodiment provides comprises:
Step 1, determines the size of movable information memory cell;
Particularly, a kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
Step 2, according to many groups movable information that movable information memory cell overlay area comprises, derives the movable information of one group of movable information as this movable information memory cell.
Particularly, a kind of possible situation is, according to the size in the movable information memory cell that step 1 is determined, can obtain movable informations all in movable information memory cell.In AVS and HEVC, the least unit that original motion information stores is 4x4 block of pixels.A kind of possible situation is, the size of current motion information memory cell is 16x16, then current motion information memory cell contains 16 4x4 blocks, has the movable information that this block is corresponding in each piece, the movable information of 16 blocks may have identical also may have different.
Get the movable information of movable information as current motion information memory cell of the centre position pixel of 16x16 block of pixels.For the movable information memory cell of 16x16 pixel size containing 16 4x4 block of pixels, get the movable information of movable information as current motion information memory cell of (2,2) position in Fig. 1.The coordinate of the pixel that correspondence is got, for offset downward 8 pixels relative to top left corner pixel point, offsets 8 pixels to the right.
For the situation of image border, the movable information memory cell marked off may not be 16x16 pixel, now still gets the movable information of movable information as current motion information memory cell of respective pixel block centre position pixel.Concrete, centre position pixel is high for offseting downward 1/2 movable information memory cell block of pixels relative to movable information memory cell block of pixels upper left angle point, offsets the pixel that 1/2 movable information memory cell is long to the right.
When storing the movable information obtained, a kind of possible situation is, for B frame bi-directional predicted in AVS, only stores forward motion vector and forward reference frame.To P frame, store the second motion vector and the second reference frame.
Embodiment 2
The method flow diagram of a kind of movable information store compressed that Fig. 2 provides for the embodiment of the present invention.The movable information storage compacting method that the present embodiment provides comprises:
Step 1, determines the size of movable information memory cell;
Particularly, a kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
Step 2, according to many groups movable information that movable information memory cell overlay area comprises, derives the movable information of one group of movable information as this movable information memory cell.
Particularly, a kind of possible situation is, according to the size in the movable information memory cell that step 1 is determined, can obtain movable informations all in movable information memory cell.In AVS and HEVC, the least unit that original motion information stores is 4x4 block of pixels.A kind of possible situation is, the size of current motion information memory cell is 16x16, then current motion information memory cell contains 16 4x4 blocks, has the movable information that this block is corresponding in each piece, the movable information of 16 blocks may have identical also may have different.
Get the movable information of movable information as current motion information memory cell of the upper left position pixel of 16x16 block of pixels.
When storing the movable information obtained, a kind of possible situation is, for B frame bi-directional predicted in AVS, only stores forward motion vector and forward reference frame.To P frame, store the second motion vector and the second reference frame.
Embodiment 3
The method flow diagram of a kind of movable information store compressed that Fig. 2 provides for the embodiment of the present invention.The movable information storage compacting method that the present embodiment provides comprises:
Step 1, determines the size of movable information memory cell;
Particularly, a kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
Step 2, according to many groups movable information that movable information memory cell overlay area comprises, derives the movable information of one group of movable information as this movable information memory cell.
Particularly, a kind of possible situation is, according to the size in the movable information memory cell that step 1 is determined, can obtain movable informations all in movable information memory cell.In AVS and HEVC, the least unit that original motion information stores is 4x4 block of pixels.A kind of possible situation is, the size of current motion information memory cell is 16x16, then current motion information memory cell contains 16 4x4 blocks, has the movable information that this block is corresponding in each piece, the movable information of 16 blocks may have identical also may have different.
Get the movable information of movable information as current motion information memory cell of the lower right position pixel of 16x16 block of pixels.
When storing the movable information obtained, a kind of possible situation is, for B frame bi-directional predicted in AVS, only stores forward motion vector and forward reference frame.To P frame, store the second motion vector and the second reference frame.
Embodiment 4
The method flow diagram of a kind of movable information store compressed that Fig. 3 provides for the embodiment of the present invention.The movable information storage compacting method that the present embodiment provides comprises:
Step 1, determines the size of movable information memory cell;
Particularly, a kind of possible situation is, the size of movable information memory cell is the value stored in code stream.By resolving corresponding syntactic element in code stream, draw the size of movable information memory cell.
Step 2, with the movable information of certain pixel in the movable information memory cell overlay area movable information as whole movable information memory cell.
Particularly, a kind of possible situation is, selects in movable information memory cell overlay area, cover the movable information of the maximum movable information of pixel as whole movable information memory cell.If x with the y component of the motion vector of two pixels is all identical, and reference frame is also identical, then these two pixels have compatible movable information.
Embodiment 5
The method flow diagram of a kind of movable information store compressed that Fig. 4 provides for the embodiment of the present invention.The movable information compression method that the present embodiment provides comprises:
Step 1, determines the size of movable information memory cell;
Particularly, a kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
Step 2, does respective handling to many groups movable information that movable information memory cell comprises, and derives the movable information of one group of movable information as whole movable information memory cell.
Particularly, a kind of possible situation is, x and the y component of the motion vector of each pixel in movable information memory cell institute overlay area is zoomed to the reference frame that distance is 1 respectively.Then average respectively to x and y component, using the motion vector that the obtains motion vector as whole movable information memory cell, this movable information memory cell is 1 to the distance of its reference frame.
Embodiment 6
The method flow diagram of a kind of movable information store compressed that Fig. 2 provides for the embodiment of the present invention.The movable information storage compacting method that the present embodiment provides comprises:
Step 1, determines the size of movable information memory cell;
Particularly, a kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
Step 2, according to many groups movable information that movable information memory cell overlay area comprises, derives the movable information of one group of movable information as this movable information memory cell.
Particularly, a kind of possible situation is, according to the size in the movable information memory cell that step 1 is determined, can obtain movable informations all in movable information memory cell.In AVS and HEVC, the least unit that original motion information stores is 4x4 block of pixels.A kind of possible situation is, the size of current motion information memory cell is 16x16, then current motion information memory cell contains 16 4x4 blocks, has the movable information that this block is corresponding in each piece, the movable information of 16 blocks may have identical also may have different.
Get the movable information of movable information as current motion information memory cell of the centre position pixel of 16x16 block of pixels.For the movable information memory cell of 16x16 pixel size containing 16 4x4 block of pixels, get the movable information of movable information as current motion information memory cell of (2,2) position in Fig. 1.The coordinate of the pixel that correspondence is got, for offset downward 8 pixels relative to top left corner pixel point, offsets 8 pixels to the right.
For the situation of image border, the movable information memory cell marked off may not be 16x16 pixel, now still gets the movable information of movable information as current motion information memory cell of respective pixel block centre position pixel.Concrete, centre position pixel is high for offseting downward 1/2 movable information memory cell block of pixels relative to movable information memory cell block of pixels upper left angle point, offsets the pixel that 1/2 movable information memory cell is long to the right.
When storing the movable information obtained, a kind of possible situation is, if the existing forward motion vector of current motion information memory cell and forward reference frame, also has backward motion vector and backward reference frame.So the movable information of forward direction and backward movable information are all stored.If existing first motion vector of current motion information memory cell and the first reference frame, have again the second motion vector and the second reference frame, so the first movable information and the second movable information are all stored.
Embodiment 7
A kind of movable information store compressed apparatus structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, in the present embodiment, described movable information store compressed device comprises, determining unit 510, lead-out unit 520.
The determining unit 510 that the present embodiment provides, specifically for:
Determine the size of movable information memory cell, be specially:
A kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
The lead-out unit 520 that the present embodiment provides, specifically for:
Derive the movable information that movable information memory cell needs to store, be specially:
A kind of possible situation is, according to the size in the movable information memory cell that step 1 is determined, can obtain movable informations all in movable information memory cell.In AVS and HEVC, the least unit that original motion information stores is 4x4 block of pixels.A kind of possible situation is, the size of current motion information memory cell is 16x16, then current motion information memory cell contains 16 4x4 blocks, has the movable information that this block is corresponding in each piece, the movable information of 16 blocks may have identical also may have different.
Get the movable information of movable information as current motion information memory cell of the centre position pixel of 16x16 block of pixels.For the movable information memory cell of 16x16 pixel size containing 16 4x4 block of pixels, get the movable information of movable information as current motion information memory cell of (2,2) position in Fig. 1.The coordinate of the pixel that correspondence is got, for offset downward 8 pixels relative to top left corner pixel point, offsets 8 pixels to the right.
For the situation of image border, the movable information memory cell marked off may not be 16x16 pixel, now still gets the movable information of movable information as current motion information memory cell of respective pixel block centre position pixel.Concrete, centre position pixel is high for offseting downward 1/2 movable information memory cell block of pixels relative to movable information memory cell block of pixels upper left angle point, offsets the pixel that 1/2 movable information memory cell is long to the right.
When storing the movable information obtained, a kind of possible situation is, for B frame bi-directional predicted in AVS, only stores forward motion vector and forward reference frame.To P frame, store the second motion vector and the second reference frame.
Embodiment 8
A kind of movable information store compressed apparatus structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, in the present embodiment, described movable information store compressed device comprises, determining unit 510, lead-out unit 520.
The determining unit 510 that the present embodiment provides, specifically for:
Determine the size of movable information memory cell, be specially:
A kind of possible situation is, the size of movable information memory cell is the value stored in code stream.By resolving corresponding syntactic element in code stream, draw the size of movable information memory cell.
The lead-out unit 520 that the present embodiment provides, specifically for:
Derive the movable information that movable information memory cell needs to store, be specially:
A kind of possible situation is, selects in movable information memory cell overlay area, cover the movable information of the maximum movable information of pixel as whole movable information memory cell.If x with the y component of the motion vector of two pixels is all identical, and reference frame is also identical, then these two pixels have compatible movable information.
Embodiment 9
A kind of movable information store compressed apparatus structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, in the present embodiment, described movable information store compressed device comprises, determining unit 510, lead-out unit 520.
The determining unit 510 that the present embodiment provides, specifically for:
Determine the size of movable information memory cell, be specially:
A kind of possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
The lead-out unit 520 that the present embodiment provides, specifically for:
Derive the movable information that movable information memory cell needs to store, be specially:
A kind of possible situation is, x and the y component of the motion vector of each pixel in movable information memory cell institute overlay area is zoomed to the reference frame that distance is 1 respectively.Then average respectively to x and y component, using the motion vector that the obtains motion vector as whole movable information memory cell, this movable information memory cell is 1 to the distance of its reference frame.
Embodiment 10
A kind of movable information store compressed apparatus structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, in the present embodiment, described movable information store compressed device comprises, determining unit 510, lead-out unit 520.
The determining unit 510 that the present embodiment provides, specifically for:
Determine the size of movable information memory cell, be specially:
Planting possible situation is, movable information memory cell is a fixed size realizing agreement, as 16x16 pixel size or 8x8 pixel size.
The lead-out unit 520 that the present embodiment provides, specifically for:
Derive the movable information that movable information memory cell needs to store, be specially:
A kind of possible situation is, according to the size in the movable information memory cell that step 1 is determined, can obtain movable informations all in movable information memory cell.In AVS and HEVC, the least unit that original motion information stores is 4x4 block of pixels.A kind of possible situation is, the size of current motion information memory cell is 16x16, then current motion information memory cell contains 16 4x4 blocks, has the movable information that this block is corresponding in each piece, the movable information of 16 blocks may have identical also may have different.
Get the movable information of movable information as current motion information memory cell of the centre position pixel of 16x16 block of pixels.For the movable information memory cell of 16x16 pixel size containing 16 4x4 block of pixels, get the movable information of movable information as current motion information memory cell of (2,2) position in Fig. 1.The coordinate of the pixel that correspondence is got, for offset downward 8 pixels relative to top left corner pixel point, offsets 8 pixels to the right.
For the situation of image border, the movable information memory cell marked off may not be 16x16 pixel, now still gets the movable information of movable information as current motion information memory cell of respective pixel block centre position pixel.Concrete, centre position pixel is high for offseting downward 1/2 movable information memory cell block of pixels relative to movable information memory cell block of pixels upper left angle point, offsets the pixel that 1/2 movable information memory cell is long to the right.
When storing the movable information obtained, a kind of possible situation is, if the existing forward motion vector of current motion information memory cell and forward reference frame, also has backward motion vector and backward reference frame.So the movable information of forward direction and backward movable information are all stored.If existing first motion vector of current motion information memory cell and the first reference frame, have again the second motion vector and the second reference frame, so the first movable information and the second movable information are all stored.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a movable information storage compacting method, is characterized in that, the method comprises:
Determine the size of movable information memory cell;
According to the region that movable information memory cell size determination movable information memory cell covers, according to many groups movable information that movable information memory cell overlay area comprises, derive the movable information of one group of movable information as this movable information memory cell.
2. movable information storage compacting method as claimed in claim 1, is characterized in that, determine the size of movable information memory cell, comprising:
The size of described movable information memory cell is a pre-determined value or the value passed at code stream.
3. movable information storage compacting method as claimed in claim 1 or 2, it is characterized in that, the described many groups movable information comprised according to movable information memory cell overlay area, derive one group of movable information as the movable information of this movable information memory cell, comprising:
With the movable information of certain pixel in the movable information memory cell overlay area movable information as whole movable information memory cell; Or
Respective handling is done to many groups movable information that movable information memory cell comprises, derives the movable information of one group of movable information as whole movable information memory cell.
4. movable information storage compacting method described in claim 3, is characterized in that, in described movable information memory cell overlay area, the movable information of certain pixel is as the movable information of whole movable information memory cell, comprising:
With the movable information of the pixel in the upper left corner of movable information memory cell institute overlay area, or the movable information of intermediate pixel with movable information memory cell institute overlay area, or with the movable information of the lower right corner pixel of the movable information memory cell institute overlay area movable information as whole movable information memory cell; Or
Select in movable information memory cell overlay area, cover the movable information of the maximum movable information of pixel as whole movable information memory cell.
5. movable information storage compacting method described in claim 3, is characterized in that, does respective handling to many groups movable information that movable information memory cell comprises, and derives the movable information of one group of movable information as whole movable information memory cell, comprising:
Process is averaging to the motion vector in described many group movable informations, using the motion vector of the motion vector after average as described movable information memory cell.
6. movable information storage compacting method described in any one of claim 1-5, it is characterized in that, according to many groups movable information that movable information memory cell overlay area comprises, derive one group of movable information as the movable information of this movable information memory cell, also comprise:
Only store forward motion vector and forward reference frame that current motion information memory cell comprises; Or
Both store forward motion vector that current motion information memory cell comprises and forward reference frame and also store the backward motion vector and backward reference frame that current motion information memory cell comprises.
7. a movable information store compressed device, is characterized in that, comprising:
Determining unit, for determining the size of movable information memory cell;
Lead-out unit, for the region covered according to movable information memory cell size determination movable information memory cell, according to many groups movable information that movable information memory cell overlay area comprises, derive the movable information of one group of movable information as this movable information memory cell.
8. movable information store compressed device described in claim 7, is characterized in that, the size of described movable information memory cell is a pre-determined value or the value passed at code stream.
9. movable information storage device described in claim 7 or 8, it is characterized in that, described movable information memory cell needs the movable information that the movable information stored is certain pixel in movable information memory cell overlay area or one group of movable information of deriving after doing respective handling to many groups movable information that movable information memory cell comprises.
10. the described movable information store compressed device of claim 9, it is characterized in that, the movable information that in described movable information memory cell overlay area, the movable information of certain pixel is the pixel in the upper left corner of movable information memory cell institute overlay area, or the movable information of the intermediate pixel of movable information memory cell institute overlay area, or the movable information of the lower right corner pixel of movable information memory cell institute overlay area, or to select in movable information memory cell overlay area cover the maximum movable information of pixel.
Movable information store compressed device described in 11. claims 9, it is characterized in that, then respective handling of doing the described many groups movable information comprised movable information memory cell derives one group of movable information as the movable information of whole movable information memory cell is be averaging process to the motion vector in described many group movable informations, using the motion vector of the motion vector after average as described movable information memory cell.
Movable information store compressed device described in 12. any one of claim 7-11, it is characterized in that, described lead-out unit also comprises only storing forward motion vector and forward reference frame that current motion information memory cell comprises or both having stored forward motion vector that current motion information memory cell comprises and forward reference frame and also stores the backward motion vector and backward reference frame that current motion information memory cell comprises.
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| CN111713109A (en) * | 2019-06-25 | 2020-09-25 | 深圳市大疆创新科技有限公司 | Video processing method, device and equipment |
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