CN106954082A - Video coding-decoding method, coding and decoding device and system - Google Patents
Video coding-decoding method, coding and decoding device and system Download PDFInfo
- Publication number
- CN106954082A CN106954082A CN201610013918.9A CN201610013918A CN106954082A CN 106954082 A CN106954082 A CN 106954082A CN 201610013918 A CN201610013918 A CN 201610013918A CN 106954082 A CN106954082 A CN 106954082A
- Authority
- CN
- China
- Prior art keywords
- subregion
- image
- module unit
- background
- frame
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 131
- 230000008569 process Effects 0.000 claims description 65
- 230000010076 replication Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 18
- 230000009467 reduction Effects 0.000 description 18
- 230000003362 replicative effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 108700026244 Open Reading Frames Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44012—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234345—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440245—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a kind of method for video coding, this method includes：When the subregion of frame is background area, replicated from the reference frame of frame with the image of the subregion correspondence position, the image after obtained image is encoded as subregion will be replicated.The invention also discloses another method for video coding, and a kind of video encoding/decoding method, code device, decoding apparatus and coding/decoding system.The present invention need not carry out encoding and decoding to background area according to traditional code encoding/decoding mode, effectively reduce the complexity of encoding and decoding, reduce time loss, lift encoding-decoding efficiency.
Description
Technical field
The present invention relates to coding and decoding video field, more particularly to a kind of video coding-decoding method and coding and decoding device.
Background technology
In the application of the low time delay such as video conference, Video chat and mobile video video communication, Consumer's Experience
Requirement constantly rise, resolution ratio is also improved constantly, resolution ratio from initial 720p to 1080p even to
4k.Under limited bandwidth condition limitation, the higher requirement to video coding and decoding technology of resolution ratio is also more next
It is higher, and existing video coding and decoding technology is increasingly difficult to meet the demand of video data compression, encoding and decoding
Journey is complicated, and the time of consumption is increasingly longer, less efficient.
The content of the invention
It is a primary object of the present invention to provide a kind of video coding-decoding method and coding and decoding device, it is intended to solve
Certainly video encoding-decoding process complexity and the time consumed increasingly longer caused encoding and decoding are imitated in the prior art
The low technical problem of rate.
To achieve the above object, a kind of method for video coding that the present invention is provided, including：
When the subregion of frame is background area, replicated and the subregion pair from the reference frame of the frame
The image of position is answered, the image that duplication is obtained is used as the image after subregion coding.
Preferably, methods described also includes：
It is that the subregion sets the first background identifier when the subregion is background area, it is described
First background identifier is used to recognize that the subregion is background area in decoding process.
Preferably, methods described also includes：
When the subregion is non-background area, the module unit in the subregion is traveled through, if traversing
Module unit be background cell, then replicated from the reference frame of the frame with the module unit correspondence position
Image, the image that duplication is obtained is used as the image after module unit coding.
Preferably, methods described also includes：
If the module unit traversed is background cell, the second background identifier is set for the module unit,
The second background identifier is used to recognize that the module unit is background cell in decoding process.
To achieve the above object, the present invention also provides a kind of method for video coding, and methods described includes：
It is that the subregion sets the first background identifier when the subregion of frame is background area, it is described
First background identifier is used to recognize that the subregion is background area in decoding process so as to institute
When stating subregion and being decoded, decoding apparatus is replicated and the subregion from the decoded reference frame of the frame
The image of correspondence position, the image that duplication is obtained is used as the decoded image of the subregion；
Obtain the image after the subregion coding.
Preferably, the image obtained after the subregion coding, including：
From the reference coding frame of the frame, the image with the subregion correspondence position is replicated as described
Image after subregion coding.
Preferably, methods described also includes：
When the subregion is non-background area, the module unit in the subregion is traveled through, if traversing
Module unit be background cell, then be the module unit set the second background identifier, second background
Identifier is used to recognize that the module unit is background cell in decoding process so as to the module unit
When being decoded, decoding apparatus is replicated and the module unit correspondence position from the decoded reference frame of the frame
Image, obtained image will be replicated and be used as the decoded image of the module unit；
Obtain the image after the module unit coding.
Preferably, the image obtained after the module unit coding includes：
From the reference coding frame of the frame, the image with the module unit correspondence position is replicated as described
Image after module unit coding.
To achieve the above object, the present invention also provides a kind of video encoding/decoding method, and methods described includes：
When frame subregion include the first background identifier when, from the reference frame of the frame replicate with it is described
The image of subregion correspondence position, will replicate obtained image as the decoded image of the subregion,
The first background identifier is used to identify the subregion for background area.
Preferably, methods described also includes：
When the subregion does not include the first background identifier, second is included if existing in the subregion
The module unit of background identifier, then replicate and the module unit correspondence position from the reference frame of the frame
Image, the image that duplication is obtained is used as the decoded image of the module unit, the second background mark
Accord with for identifying the module unit for background cell.
To achieve the above object, the present invention also provides a kind of code device, including：
Replication module, for when the subregion of the frame is background area, from the reference frame of the frame
The image with the subregion correspondence position is replicated, the image that duplication is obtained is encoded as the subregion
Image afterwards.
Preferably, described device also includes：
First setup module, for when the subregion is background area, being that the subregion sets the
One background identifier, the first background identifier is used to recognize that the subregion is the back of the body in decoding process
Scene area.
Preferably, described device also includes：
Traversal and replication module, for when the subregion is non-background area, traveling through the subregion
Interior module unit, if the module unit traversed be background cell, from the reference frame of the frame replicate with
The image of the module unit correspondence position, the image that duplication is obtained is used as the figure after module unit coding
Picture.
Preferably, described device also includes：
Second setup module, if being background cell for the module unit traversed, sets for the module unit
The second background identifier is put, the second background identifier is used to recognize the module unit in decoding process
For background cell.
To achieve the above object, the present invention also provides a kind of code device, and described device includes：
3rd setup module, for when the subregion of frame is background area, being that the subregion sets the
One background identifier, the first background identifier is used to recognize that the subregion is the back of the body in decoding process
Scene area so that when being decoded to the subregion, decoded reference frame of the decoding apparatus from the frame
Middle duplication and the image of the subregion correspondence position, the image that duplication is obtained are used as the subregion solution
Image after code；
First acquisition module, for obtaining the image after the subregion coding.
Preferably, first acquisition module is specifically for from the reference coding frame of the frame, replicate with
The image of the subregion correspondence position is used as the image after subregion coding.
Preferably, described device also includes：
Traversal and setup module, for when the subregion is non-background area, traveling through the subregion
Interior module unit, if the module unit traversed is background cell, the second background is set for the module unit
Identifier, the second background identifier is used to recognize that the module unit is background cell in decoding process,
So that when being decoded to the module unit, decoding apparatus replicated from the decoded reference frame of the frame with
The image of the module unit correspondence position, the image that duplication is obtained is used as the decoded figure of the module unit
Picture；
Second acquisition module, for obtaining the image after the module unit coding.
Preferably, second acquisition module specifically for：From the reference coding frame of the frame, replicate
Image after being encoded with the image of the module unit correspondence position as the module unit.
To achieve the above object, the present invention also provides a kind of decoding apparatus, and described device includes：
First copying image module, for when the subregion of frame includes the first background identifier, from described
The image with the subregion correspondence position is replicated in the reference frame of frame, the image that duplication is obtained is used as institute
The decoded image of subregion is stated, the first background identifier is used to identify the subregion for background area
Domain.
Preferably, described device also includes：
Second copying image module, for when the subregion does not include the first background identifier, if institute
The module unit for existing in subregion and including the second background identifier is stated, then is replicated from the reference frame of the frame
With the image of the module unit correspondence position, the image that duplication is obtained is decoded as the module unit
Image, the second background identifier is used to identify the module unit for background cell.
To achieve the above object, the present invention also provides a kind of coding/decoding system, including：Above-mentioned code device
And above-mentioned decoding apparatus.
The present invention provides a kind of video coding-decoding method and coding and decoding device, and achieved has the beneficial effect that：
It is multiple from the reference frame of the frame when the subregion of frame is background area in video coding process
System and the image of the subregion correspondence position, the image that duplication is obtained are used as the figure after subregion coding
Picture so that need not be encoded according to existing coded system to subregion, effectively reduction encoder complexity,
Reduce coding the consumed time and improve code efficiency.And in video decoding process, when the sub-district of frame
In domain comprising identify the subregion be background area the first background identifier when, from the reference frame of the frame
The image with the subregion correspondence position is replicated, the image that duplication is obtained is used as the decoded figure of subregion
Picture so that need not be decoded according to existing decoding process to subregion, effectively reduction decoding complex degree,
Reduce time and raising decoding efficiency that decoding process is consumed.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of method for video coding in first embodiment of the invention；
Fig. 2 is the schematic flow sheet that first embodiment shown in Fig. 1 adds step；
Fig. 3 is the schematic flow sheet that first embodiment shown in Fig. 1 adds step；
Fig. 4 is the schematic flow sheet that embodiment illustrated in fig. 3 adds step；
Fig. 5 is the schematic flow sheet of method for video coding in second embodiment of the invention；
Fig. 6 is the schematic flow sheet that second embodiment shown in Fig. 5 adds step；
Fig. 7 be third embodiment of the invention in video encoding/decoding method schematic flow sheet；
Fig. 8 is the schematic flow sheet of the addition step of third embodiment of the invention；
Fig. 9 is the schematic diagram of the functional module of code device in fourth embodiment of the invention；
Figure 10 is the schematic diagram of the addition functional module of fourth embodiment shown in Fig. 9；
Figure 11 is the schematic diagram that fourth embodiment shown in Fig. 9 adds functional module；
Figure 12 is the schematic diagram that embodiment illustrated in fig. 11 adds functional module；
Figure 13 is the schematic diagram of the functional module of code device in fifth embodiment of the invention；
Figure 14 is the schematic diagram that embodiment illustrated in fig. 13 adds functional module；
Figure 15 is the schematic diagram of the functional module of decoding apparatus in sixth embodiment of the invention；
Figure 16 is the schematic diagram that embodiment illustrated in fig. 15 adds functional module；
Figure 17 is the high-level schematic functional block diagram of coding/decoding system in sixth embodiment of the invention.
The realization, functional characteristics and advantage of the object of the invention will be done further referring to the drawings in conjunction with the embodiments
Explanation.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, limit is not used to
The fixed present invention.
The present invention provides a kind of method of coding and decoding video, specifically includes method for video coding and video decoding
Method, in method for video coding, when the subregion of frame is background area, from the reference frame of the frame
Replicate with the image of the subregion correspondence position, the figure after obtained image is encoded as subregion will be replicated
Picture, obtains the figure after subregion coding so that need not lead to by way of the image for replicating reference frame
Cross existing coded system and obtain the image after subregion coding, can effectively shorten the scramble time, reduce
Encoder complexity, improves code efficiency.
It is the first of background area when the subregion of frame includes the mark subregion in video encoding/decoding method
During background identifier, from the reference frame of the frame, the image with the subregion correspondence position is replicated, will be multiple
The image being made is as the decoded image of the subregion, without using existing decoding process antithetical phrase
Region is decoded, and can have effectively save decoding the consumed time, reduce the complexity of decoding, carry
High decoding efficiency.
Wherein, existing coded system refer to be predicted frame, convert, quantify, entropy code and reconstruction,
Existing decoding process refers to carry out frame entropy coding, inverse quantization, inverse transformation, prediction and rebuild.
In embodiments of the present invention, the frame that can use above-mentioned decoding method is P frames or B frames.
Wherein, P frames are a kind of forward predictive coded frame, also referred to as inter-frame encoding frame, before P frames are needed to refer to
The I frames adjacent thereto or P frames in face and generate, while it can be the ginseng of other P frames or B frames
Examine frame.
Wherein, B frames are a kind of bi-directional predictive coding frames, and it is also an inter-frame encoding frame, and B frames need ginseng
Before examination the I frames or P frames in face or below P frames generation, reference frame of the B frames not as other frames.
Wherein, I frames are a kind of full frame compressed coded frames, are also intracoded frame, therefore the data volume of I frames
It is general than larger, I frames are generated without necessarily referring to other frames, and it can be the reference frame of P frames or B frames.
In embodiments of the present invention, the P frames and B frames in a video image are all drawn according to identical size
Molecular domains, for example, can be divided into 4 sub-regions, and be per sub-regions and can carry out absolute coding
Region, wherein, be all divided into module unit according to identical size per sub-regions, for example, can divide
For 16 module units of size identical, therefore, for P frames and B frames, the subregion that they possess
Number it is identical, and in each frame, the size of the module unit included in the subregion in same position
It is also identical with number.
Wherein, module unit is the codec unit divided for video image, in traditional encoding-decoding process,
It is the process that encoding and decoding are carried out in units of module unit.For example, in efficient video coding (High
Efficiency Video Coding, HEVC) in agreement, module unit can with LCU, in H.264 agreement,
Module unit can be macro block (Macro Block, MB).
Wherein, multiple module units are included in subregion, for example：Subregion can be H.264 in agreement
Slice, each Slice can be decoded individually, or, subregion can be the tile in HEVC agreements.
, below will be respectively for the technical scheme of coding and decoding video being better understood from the embodiment of the present invention
Introduce the method for video coding and video encoding/decoding method in the embodiment of the present invention.
Referring to Fig. 1, being the schematic flow sheet of method for video coding in first embodiment of the invention, this method
Including：
Step 101, when frame subregion be background area when, from the reference frame of frame replicate with subregion pair
The image of position is answered, the image after obtained image is encoded as subregion will be replicated.
In embodiments of the present invention, method for video coding is performed by code device, and code device will be according to
The secondary frame in video image carries out cataloged procedure.
Wherein, when the subregion of frame is background area, replicated and the subregion pair from the reference frame of frame
The image of position is answered, the image after obtained image is encoded as subregion will be replicated.
In embodiments of the present invention, whether be the mode of background area have a variety of, for example if judging subregion：
Code device by determine subregion in each pixel pixel value, and determine in previous frame with the son
Region has the pixel value of each pixel in the auxiliary subregion of same position, and sub-district is calculated successively
In the pixel value of pixel in domain and the auxiliary subregion between the pixel value of the pixel of corresponding position
Difference, arrive all differences until calculating, and the absolute values of all differences is summed, by this and value with it is pre-
The first numerical value first set is compared, if this and value are less than the first numerical value that this pre-sets, it is determined that
The subregion is background area, if this and value are more than or equal to the first numerical value that this pre-sets, it is determined that
The subregion is non-background area.I.e. by the absolute value of the difference of pixel and whether judge subregion
For background area.
Or, and for example：Code device determines the pixel value of each pixel in subregion, and really
Determine the pixel with the subregion in previous frame with each pixel in the auxiliary subregion of same position
Value, calculates the pixel value and the picture of corresponding position in the duplication subregion of the pixel in subregion successively
Difference between the pixel value of vegetarian refreshments, all differences are arrived until calculating, and all differences are summed, and counts
Calculate the absolute value of the sum, by this and absolute value be compared with the second value that pre-sets, if should and
Absolute value less than the second value that this pre-sets, it is determined that the subregion be background area, if should and
Absolute value more than or equal to the first numerical value that this pre-sets, it is determined that the subregion be non-background area.
Judge whether subregion is background area by the absolute value of the sum of the difference of pixel.
It should be noted that in embodiments of the present invention, being replicated and the subregion pair from the reference frame of frame
The step of image for answering position is to turn into other frames in order to avoid in follow-up cataloged procedure, being somebody's turn to do " frame "
During reference frame, it is impossible to the problem of obtaining image by the form of duplication.
In video coding process in embodiments of the present invention, when the subregion of frame is background area, from
In the reference frame of the frame, replicate with the image of the subregion correspondence position, will replicate obtained image as
Image after subregion coding so that need not be obtained according to existing coded system after subregion coding
Figure, effectively reduction cataloged procedure complexity, save the scramble time, improve code efficiency.
In embodiments of the present invention, in order to the son can be also obtained by way of duplication in decoding process
Image after regional decoding, code device can also the subregion set the first background identifier, in order to just
In understanding, referring to Fig. 2, the first embodiment shown in Fig. 1 adds the schematic flow sheet of step, including：
Step 201, when subregion be background area when, be subregion set the first background identifier, first
Background identifier is used to recognize that subregion is background area in decoding process.
In embodiments of the present invention, code device if it is determined that the subregion be background area, then be the sub-district
Domain sets the first background identifier.Wherein, the first background identifier is used to identify the subregion for background area
Domain, and for recognizing that the subregion is background area in decoding process, therefore, in decoding process,
Can be by judging whether subregion comprising the first background identifier determines whether subregion is background area
Domain.
Wherein, each sub-regions are all provided with one and are used to identify whether the subregion is background area
Flag, and the flag be 0 when, show subregion be non-background area, the flag be 1 when,
It is background area to show subregion, and before not judging whether subregion is background area, the flag
Value be 0.When it is background area that code device, which determines subregion, the value that the flag can be set is 1,
Complete as the operation of the subregion the first background identifier of setting.And when code device determines subregion not
When being background area, the flag will not be operated.For example, in HEVC agreements, above-mentioned mark
It can be tile_mv_0_flag to know position, and the flag can be arranged on slice_segment_header ()
In function.
Wherein, it is to decode to set the first background identifier to the subregion for being defined as background area
Cheng Zhong, directly determines that the subregion is by way of judging whether subregion includes the first background identifier
No is background area.
It should be noted that in embodiments of the present invention, not limiting step 201 and Fig. 1 shown in Fig. 2
Step 101 in illustrated embodiment performs the sequencing of time.
In embodiments of the present invention, code device will be the background when it is determined that subregion is background area
Region sets the first background identifier, and the first background identifier is used to recognize the sub-district in decoding process
Domain is background area so that in decoding, can be corresponding by replicating the reference frame of the affiliated frame of the subregion
The mode of the image of position realizes decoding process so that subregion need not be entered by existing decoding process
The complexity of row decoding, effectively reduction decoding process, saves the decoding time, improves decoding efficiency.
In embodiments of the present invention, will be further in the subregion when subregion is non-background area
Module unit encoded, for a better understanding, referring to Fig. 3, being the first reality shown in Fig. 1 of the present invention
The schematic flow sheet that example adds step is applied, this method includes：
Step 301, when subregion be non-background area when, then travel through subregion in module unit, if traversal
The module unit arrived is background cell, then the image with module unit correspondence position is replicated from the reference frame of frame,
The image after obtained image is encoded as module unit will be replicated.
In embodiments of the present invention, when it is non-background area that code device, which determines subregion, code device
The module unit in the subregion will be traveled through, and determines whether the module unit traversed is background cell.
In embodiments of the present invention, code device determines whether module unit is many a variety of modes of background cell,
For example：Code device determines the pixel value of each pixel in module unit, and determines in previous frame
There is the auxiliary subregion of same position with the subregion belonging to module unit, code device will determine auxiliary at this
Help in subregion each pixel for having with above-mentioned module unit in the auxiliary module unit of same position
Pixel value, successively calculate module unit in pixel pixel value with its aid in module unit in corresponding picture
Difference between element value, after calculating obtains all differences, the absolute value of all differences is summed,
This and value and the third value that pre-sets are compared, if should and value less than the 3rd number pre-set
Value, it is determined that the module unit is background cell, if this and value are more than or equal to the first number that this pre-sets
Value, it is determined that the module unit is non-background cell.
Or, and for example：Code device determines the pixel value of each pixel in module unit, and really
It is scheduled on the auxiliary subregion with the subregion belonging to module unit in previous frame with same position, code device
It will determine to have with above-mentioned module unit in the auxiliary subregion every in the auxiliary module unit of same position
The pixel value of one pixel, successively calculate module unit in pixel pixel value with its in auxiliary block list
Difference in member between corresponding pixel value, after calculating obtains all differences, by all differences
Sum and calculate absolute value, the absolute value and the 4th numerical value that pre-sets are compared, if this is absolute
Value is less than the 4th numerical value that pre-sets, it is determined that the module unit is background cell, if should and value be more than or
The first numerical value pre-set equal to this, it is determined that the module unit is non-background cell.
In embodiments of the present invention, if the module unit traversed is background cell, code device will be from frame
Reference frame in, replicate with the image of module unit correspondence position, obtained image will be replicated and be used as module unit
Image after coding.Wherein, the image replicated from the reference frame of frame with module unit correspondence position is specifically wrapped
Include：In the reference frame of frame, it is determined that having reference of correspondence position with the subregion belonging to the module unit
Region；This is replicated with reference to the image in subregion with the module unit correspondence position.
Wherein, if the module unit traversed is non-background cell, code device will be according to existing coding
Mode obtains the image after block module unit coding.
In embodiments of the present invention, when subregion is non-background area, to the module unit in the subregion
Traveled through, if the module unit traversed is background cell, from the reference frame of frame, replicated and block list
The image of first correspondence position will replicate the image after obtained image is encoded as module unit so that in block list
When member is background cell, the image after module unit coding can be obtained by way of duplication, without
Module unit is encoded by existing coded system, effectively the complexity of reduction coding and it is required when
Between, improve code efficiency.
In embodiments of the present invention, in order to which the module unit of background cell can be identified as in decoding process,
The second background identifier can be set to the module unit for being defined as background cell in an encoding process, refer to
Fig. 4, is the schematic flow sheet of the addition step of embodiment illustrated in fig. 3 of the present invention, including：
Step 401, when the module unit traversed be background cell when, be module unit set the second background identify
Symbol, the second background identifier is used to recognize that module unit is background cell in decoding process.
In embodiments of the present invention, it is that module unit is set when it is background cell that code device, which determines module unit,
The second background identifier is put, the second background identifier is used to recognize that module unit is background in decoding process
Unit so that can be by judging whether module unit includes the side of the second background identifier in decoding process
Formula determines whether the module unit is background cell.
Wherein, flag has been set in module unit, the flag is used to represent whether the module unit is background
Unit, it is background cell that the module unit is illustrated when the value of the flag is 1, when the value of the flag is 0
When illustrate the module unit be non-background cell.And before the coding, the value of the flag of module unit is 0,
After it is background cell that code device, which determines the module unit, will set the value of the flag is 1, as block
Unit is provided with the second background identifier.In HEVC agreements, the flag can be set to be
Cu_mv_0_flag, and the flag can be arranged in prediction_uint () function.
Wherein, it is that to set the second background identifier be in order to can be by sentencing during decoding to module unit
Whether fault block unit determines whether the module unit is background cell comprising the second background identifier.
It is block when the module unit traversed is background cell in embodiments of the present invention in cataloged procedure
Unit sets the second background identifier so that during being decoded to the module unit, can be by replicating
Mode obtain the decoded image of the module unit, without by existing decoding process to the module unit
Decoded, effectively the complexity of reduction decoding and required time, improve decoding efficiency.
Referring to Fig. 5, be the schematic flow sheet of method for video coding in second embodiment of the invention, including：
Step 501, when frame subregion be background area when, be subregion set the first background identifier,
First background identifier is used to recognize that subregion is background area in decoding process so as to subregion
When being decoded, decoding apparatus replicates the image with subregion correspondence position from the decoded reference frame of frame,
The image that duplication is obtained is used as the decoded image of subregion；
Image after step 502, acquisition subregion coding.
In embodiments of the present invention, code device to frame when encoding, however, it is determined that the subregion of the frame
For background area, then the first background identifier is set for the subregion, the first background identifier is used for
In decoding process recognize subregion be background area so that decoding apparatus when being decoded to the subregion,
The image with the subregion correspondence position can be replicated from the decoded reference frame of the frame.
Wherein, decoded reference frame refers to reference frame of the frame in decoding.
In embodiments of the present invention, code device for belong to background area subregion set the first background
After identifier, will also the image after subregion coding be obtained.
In embodiments of the present invention, by an encoding process, to belong to the subregion setting of background area
First background identifier so that the subregion can be obtained by way of duplicating image in decoding process
Decoded image, without obtaining the decoded figure of the subregion according to existing decoding process, has
The complexity of effect reduction decoding and required time, improve decoding efficiency.
It is preferred that, in embodiments of the present invention, step of the code device in embodiment illustrated in fig. 5 is performed
When 502, it can perform, specifically include according to the steps：
From the reference coding frame of frame, after the image replicated with subregion correspondence position is encoded as subregion
Image.
Wherein, reference coding frame refers to the reference frame of frame in an encoding process.
In embodiments of the present invention, code device, can be from this when it is determined that the subregion of frame is background area
In the reference coding frame of frame, the image with subregion correspondence position is replicated as the figure after subregion coding
Picture so that need not be encoded by existing coded system to the subregion, what effectively reduction was encoded answers
Miscellaneous degree and required time, improve code efficiency.
Referring to Fig. 6, the second embodiment shown in Fig. 5 of the present invention adds the schematic flow sheet of step, including：
Step 601, when subregion be non-background area when, traversal subregion in module unit, if traversing
Module unit be background cell, then be module unit set the second background identifier, the second background identifier use
In in decoding process recognize module unit be background cell so that when being decoded to module unit, decode
Device replicates the image with module unit correspondence position from the decoded reference frame of frame, the image that duplication is obtained
It is used as the decoded image of module unit；
Image after step 603, acquisition module unit coding.
In embodiments of the present invention, code device, will be further when it is determined that subregion is non-background area
Travel through the module unit in the subregion, and if the module unit that traverses is background cell, for the module unit
Second background identifier is set, and the second background identifier is used to recognize that module unit is the back of the body in decoding process
Scape unit so that when the module unit for belonging to background cell to this is decoded, decoding apparatus can be from the frame
Decoded reference frame in replicate with the image of the module unit correspondence position, obtained image will be replicated and be used as block
The decoded image of unit.
Wherein, code device will obtain the module unit after the second background identifier is set for module unit
Image after coding.
In embodiments of the present invention, by an encoding process, to belong to the module unit setting of background cell
Second background identifier so that the subregion can be obtained by way of duplicating image in decoding process
Decoded image, without obtaining the decoded image of the subregion according to existing decoding process, has
The complexity of effect reduction decoding and required time, improve decoding efficiency.
It is preferred that, in embodiments of the present invention, code device perform Fig. 6 shown in step 602 when,
It can specifically be performed according to following content, including：
From the reference coding frame of frame, the image replicated with module unit correspondence position is encoded as the module unit
Image afterwards.
Wherein, reference coding frame refers to the reference frame of frame in an encoding process.
In embodiments of the present invention, code device, can when it is determined that the module unit traversed is background cell
From the reference coding frame of the frame, the image replicated with the module unit correspondence position is encoded as the module unit
Image afterwards so that need not be encoded by existing coded system to the module unit, effectively reduction are compiled
The complexity of code and required time, improve code efficiency.
Fig. 1 to Fig. 6 describes the detailed technology scheme of method for video coding, is explained below of the invention real
The detailed technology scheme of the video encoding/decoding method in example is applied, referring to Fig. 7, in third embodiment of the invention
Video encoding/decoding method schematic flow sheet, this method includes：
Step 701, when frame subregion include the first background identifier when, from the reference frame of frame replicate with
The image of subregion correspondence position, the image that duplication is obtained is used as the decoded image of subregion, first
Background identifier is used to recognize that subregion is background area.
In embodiments of the present invention, decoding apparatus will determine the son when the subregion to frame is decoded
Whether region includes the first background identifier, when decoding apparatus determines that subregion includes the first background identifier
When, decoding apparatus replicates the image with the subregion correspondence position, will replicated from the reference frame of frame
The image arrived is used as the decoded image of subregion.
In video encoding/decoding method in embodiments of the present invention, decoding apparatus is it is determined that subregion is background area
In the case of, it can will replicate what is obtained by replicating the image in reference frame with the subregion correspondence position
Image is as the decoded image of the subregion, without being carried out according to existing coded system to subregion
Time required for decoding, effectively reduction decoding complex degree and decoding, improve decoding efficiency.
Referring to Fig. 8, shown in Fig. 7 of the present invention the addition step of 3rd embodiment schematic flow sheet, bag
Include：
Step 801, when subregion do not include the first background identifier when, if in subregion exist include second
The module unit of background identifier, then replicate the image with module unit correspondence position from the reference frame of frame, will
Obtained image is replicated as the decoded image of module unit, the second background identifier is used to recognize module unit
For background cell.
In embodiments of the present invention, decoding apparatus is not it is determined that the subregion of frame includes the first background identifier
When, it will determine to whether there is the module unit for including the second background identifier in the module unit in the subregion.
If there is the module unit for including the second background identifier in the middle of the subregion, from the frame belonging to the subregion
Reference frame in replicate with the figure of the subregion correspondence position, obtained image will be replicated and be used as subregion
Decoded image, wherein, the second background identifier is used to identify module unit for background cell.
In embodiments of the present invention, in the case of it is determined that module unit does not include the second background identifier, solution
Code device will be decoded according to existing decoding process, not repeated herein.
In video encoding/decoding method in embodiments of the present invention, it is determined that subregion is not identified comprising the first background
In the case of symbol, if there is the module unit for including the second background identifier in the subregion, it is not necessary to this
Module unit is decoded according to existing decoding process, and the module unit is obtained by way of duplicating image
Decoded image, can effectively reduce the time required for decoding complex degree and decoding, improve decoding effect
Rate.
It should be noted that the technical scheme described in the embodiment of the present invention is to be based on low time delay video communication
Two features of scene pay what is obtained by creative, wherein, a feature is：At larger one
In timesharing, field motion amount is smaller and static, is further characterized as：Within a certain period of time, some pictures
Only foreground object occurs left and right or moved up and down, and background parts do not change.
Referring to Fig. 9, being the schematic diagram of the functional module of code device in fourth embodiment of the invention, the volume
Code device includes：
Replication module 901, for when the subregion of the frame is background area, from the reference frame of the frame
Middle duplication and the image of the subregion correspondence position, the image that duplication is obtained are compiled as the subregion
Image after code.
In embodiments of the present invention, whether be the mode of background area have a variety of, for example if judging subregion：
Code device by determine subregion in each pixel pixel value, and determine in previous frame with the son
Region has the pixel value of each pixel in the auxiliary subregion of same position, and sub-district is calculated successively
In the pixel value of pixel in domain and the auxiliary subregion between the pixel value of the pixel of corresponding position
Difference, arrive all differences until calculating, and the absolute values of all differences is summed, by this and value with it is pre-
The first numerical value first set is compared, if this and value are less than the first numerical value that this pre-sets, it is determined that
The subregion is background area, if this and value are more than or equal to the first numerical value that this pre-sets, it is determined that
The subregion is non-background area.I.e. by the absolute value of the difference of pixel and whether judge subregion
For background area.
Or, and for example：Code device determines the pixel value of each pixel in subregion, and really
Determine the pixel with the subregion in previous frame with each pixel in the auxiliary subregion of same position
Value, calculates the pixel value and the picture of corresponding position in the duplication subregion of the pixel in subregion successively
Difference between the pixel value of vegetarian refreshments, all differences are arrived until calculating, and all differences are summed, and counts
Calculate the absolute value of the sum, by this and absolute value be compared with the second value that pre-sets, if should and
Absolute value less than the second value that this pre-sets, it is determined that the subregion be background area, if should and
Absolute value more than or equal to the first numerical value that this pre-sets, it is determined that the subregion be non-background area.
Judge whether subregion is background area by the absolute value of the sum of the difference of pixel.
In embodiments of the present invention, in an encoding process, it is multiple when the subregion of the frame is background area
Molding block 901 replicates the image with the subregion correspondence position from the reference frame of the frame belonging to the subregion,
The image that duplication is obtained is used as the image after subregion coding so that need not be according to existing coding staff
Formula is encoded to subregion, effectively the complexity of reduction cataloged procedure, is saved the scramble time, is improved and compile
Code efficiency.
Referring to Fig. 10, shown in Fig. 9 of the present invention the addition functional module of fourth embodiment schematic diagram,
Including：
First setup module 1001, for being that the subregion is set when the subregion is background area
The first background identifier is put, the first background identifier is used to recognize the subregion in decoding process
For background area.
In embodiments of the present invention, each sub-regions are all provided with one is used for whether identifying the subregion
For the flag of background area, and the flag, when being 0, it is non-background area, the mark to show subregion
Know position be 1 when, show subregion be background area, and do not judge subregion whether be background area it
Before, the value of the flag is 0.When it is background area that code device, which determines subregion, the mark can be set
The value of position is 1, that is, completes to set the operation of the first background identifier for the subregion.And when code device is true
When stator region is not background area, the flag will not be operated.
In embodiments of the present invention, code device is when it is determined that subregion is background area, and first sets mould
Block 1001 will set the first background identifier for the background area, and the first background identifier is used in decoding
During recognize the subregion be background area so that decoding when, can be by replicating the subregion institute
The mode for belonging to the image of the reference frame correspondence position of frame realizes decoding process so that need not pass through existing solution
Code mode is decoded to subregion, effectively the complexity of reduction decoding process, is saved the decoding time, is carried
High decoding efficiency.
Figure 11 is referred to, is the schematic diagram that fourth embodiment shown in Fig. 9 adds functional module, including：
Traversal and replication module 1101, for when the subregion is non-background area, traveling through the son
Module unit in region, it is multiple from the reference frame of the frame if the module unit traversed is background cell
System and the image of the module unit correspondence position, after the image that duplication is obtained is encoded as the module unit
Image.
In embodiments of the present invention, code device determines whether module unit is many a variety of modes of background cell,
For example：Code device determines the pixel value of each pixel in module unit, and determines in previous frame
There is the auxiliary subregion of same position with the subregion belonging to module unit, code device will determine auxiliary at this
Help in subregion each pixel for having with above-mentioned module unit in the auxiliary module unit of same position
Pixel value, successively calculate module unit in pixel pixel value with its aid in module unit in corresponding picture
Difference between element value, after calculating obtains all differences, the absolute value of all differences is summed,
This and value and the third value that pre-sets are compared, if should and value less than the 3rd number pre-set
Value, it is determined that the module unit is background cell, if this and value are more than or equal to the first number that this pre-sets
Value, it is determined that the module unit is non-background cell.
Or, and for example：Code device determines the pixel value of each pixel in module unit, and really
It is scheduled on the auxiliary subregion with the subregion belonging to module unit in previous frame with same position, code device
It will determine to have with above-mentioned module unit in the auxiliary subregion every in the auxiliary module unit of same position
The pixel value of one pixel, successively calculate module unit in pixel pixel value with its in auxiliary block list
Difference in member between corresponding pixel value, after calculating obtains all differences, by all differences
Sum and calculate absolute value, the absolute value and the 4th numerical value that pre-sets are compared, if this is absolute
Value is less than the 4th numerical value that pre-sets, it is determined that the module unit is background cell, if should and value be more than or
The first numerical value pre-set equal to this, it is determined that the module unit is non-background cell.
In embodiments of the present invention, when subregion is non-background area, 1101 pairs of traversal and replication module
Module unit in the subregion is traveled through, if the module unit traversed is background cell, from the ginseng of frame
Examine in frame, replicating will replicate after obtained image encodes as module unit with the image of module unit correspondence position
Image so that module unit be background cell when, can be obtained by way of duplication the module unit coding
Image afterwards, without being encoded by existing coded system to module unit, effectively reduction is encoded
Complexity and required time, improve code efficiency.
Figure 12 is referred to, is the schematic diagram that embodiment illustrated in fig. 11 of the present invention adds functional module, including：
Second setup module 1201, if being background cell for the module unit traversed, for described piece of list
Member sets the second background identifier, and the second background identifier is used to recognize described piece in decoding process
Unit is background cell.
Wherein, flag has been set in module unit, the flag is used to represent whether the module unit is background
Unit, it is background cell that the module unit is illustrated when the value of the flag is 1, when the value of the flag is 0
When illustrate the module unit be non-background cell.And before the coding, the value of the flag of module unit is 0,
After it is background cell that code device, which determines the module unit, will set the value of the flag is 1, as block
Unit is provided with the second background identifier.In HEVC agreements, the flag can be set to be
Cu_mv_0_flag, and the flag can be arranged in prediction_uint () function.
Wherein, it is that to set the second background identifier be in order to can be by sentencing during decoding to module unit
Whether fault block unit determines whether the module unit is background cell comprising the second background identifier.
In embodiments of the present invention in cataloged procedure, when the module unit traversed is background cell, second
Setup module 1201 is that module unit sets the second background identifier so that the mistake decoded to the module unit
Cheng Zhong, can obtain the decoded image of the module unit by way of duplication, without passing through existing solution
Code mode is decoded to the module unit, effectively the complexity of reduction decoding and required time, is improved
Decoding efficiency.
Figure 13 is referred to, is the schematic diagram of the functional module of code device in fifth embodiment of the invention, is wrapped
Include：
3rd setup module 1301, for being that the subregion is set when the subregion of frame is background area
The first background identifier is put, the first background identifier is used to recognize the subregion in decoding process
For background area so that when being decoded to the subregion, decoding apparatus is joined from the decoding of the frame
The image replicated in frame with the subregion correspondence position is examined, the image that duplication is obtained is used as the sub-district
The decoded image in domain；
First acquisition module 1302, for obtaining the image after the subregion coding.
It is preferred that, the first acquisition module 1302 in the embodiment of the present invention is specifically for the coding from the frame
In reference frame, the image with the subregion correspondence position is replicated as the image after subregion coding.
In embodiments of the present invention, when being encoded to subregion, if the subregion is background area,
3rd setup module 1301 is that the subregion sets the first background identifier so that can be with decoding process
The decoded image of the subregion is obtained by way of duplicating image, without according to existing decoding side
Formula obtains the decoded figure of the subregion, effectively the complexity of reduction decoding and required time, carries
High decoding efficiency.
Figure 14 is referred to, is the schematic diagram of additional functional module in embodiment illustrated in fig. 13 of the present invention, including：
Traversal and setup module 1401, for when the subregion is non-background area, traveling through the son
Module unit in region, if the module unit traversed is background cell, second is set for the module unit
Background identifier, the second background identifier is used to recognize that the module unit is background in decoding process
Unit so that when being decoded to the module unit, decoding apparatus is from the decoded reference frame of the frame
The image with the module unit correspondence position is replicated, the image that duplication is obtained is decoded as the module unit
Image afterwards；
Second acquisition module 1402, for obtaining the image after the module unit coding.
It is preferred that, the second acquisition module 1402 specifically for：From the reference coding frame of the frame, replicate
Image after being encoded with the image of the module unit correspondence position as the module unit.
In embodiments of the present invention, when subregion is non-background area, traversal and setup module 1401 times
The module unit gone through in the subregion, and the module unit traversed is when being background cell, is that module unit sets the
Two background identifiers so that the subregion solution can be obtained by way of duplicating image in decoding process
Image after code, without obtaining the decoded image of the subregion according to existing decoding process, effectively
The complexity of decoding and required time are reduced, decoding efficiency is improved.
Figure 15 is referred to, is the high-level schematic functional block diagram of decoding apparatus in sixth embodiment of the invention, including：
First copying image module 1501, for when frame subregion include the first background identifier when, from
The image with the subregion correspondence position is replicated in the reference frame of the frame, the image that duplication is obtained is made
For the decoded image of the subregion, it is the back of the body that the first background identifier, which is used to identify the subregion,
Scene area.
In embodiments of the present invention, decoding apparatus is in the case of it is determined that subregion is background area, coding
The first copying image module 1501 in device replicates the image in reference frame with the subregion correspondence position,
Obtained image will be replicated as the decoded image of the subregion, without according to existing coded system
Subregion is decoded, effectively the time required for reduction decoding complex degree and decoding, improve decoding effect
Rate.
Figure 16 is referred to, is the schematic diagram of the addition functional module of embodiment illustrated in fig. 15 of the present invention, including：
Second copying image module 1601, for when the subregion do not include the first background identifier when,
If there is the module unit for including the second background identifier in the subregion, from the reference frame of the frame
The image with the module unit correspondence position is replicated, the image that duplication is obtained is decoded as the module unit
Image afterwards, the second background identifier is used to identify the module unit for background cell.
In embodiments of the present invention, decoding apparatus is not it is determined that subregion includes the feelings of the first background identifier
Under condition, if there is the module unit for including the second background identifier, the second copying image mould in the subregion
Block 1601 replicates the image with the module unit correspondence position from the reference frame of frame, the image that duplication is obtained
It is used as the decoded image of the module unit so that the module unit need not be carried out according to existing decoding process
Decoding, can effectively reduce the time required for decoding complex degree and decoding, improve decoding efficiency.
Figure 17 is referred to, is the schematic diagram of the functional module of coding/decoding system in sixth embodiment of the invention,
Including：Such as the code device 1701 in any one of Figure 10 to 15 illustrated embodiment, and such as Figure 15 or 16
Decoding apparatus 1702 in illustrated embodiment.
In embodiments of the present invention, code device 1701 and decoding apparatus 1702 can be joined by replicating
The mode for examining frame obtains the image of encoding and decoding, without obtaining encoding and decoding by existing code encoding/decoding mode
Image, effectively reduction encoding and decoding complexity and reduce the encoding and decoding time, improve encoding-decoding efficiency.
Through the above description of the embodiments, those skilled in the art can be understood that above-mentioned
Embodiment method can add the mode of required general hardware platform to realize by software, naturally it is also possible to logical
Cross hardware, but the former is more preferably embodiment in many cases.Understood based on such, it is of the invention
The part that technical scheme substantially contributes to prior art in other words can in the form of software product body
Reveal and, the computer software product is stored in storage medium (such as ROM/RAM, magnetic disc, a light
Disk) in, including some instructions are make it that a station terminal equipment (can be mobile phone, computer, service
Device, air-conditioner, or network equipment etc.) method that performs each of the invention embodiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every
The equivalent structure or equivalent flow conversion made using description of the invention and accompanying drawing content, or directly or
Connect and be used in other related technical fields, be included within the scope of the present invention.
Claims (21)
1. a kind of method for video coding, it is characterised in that including：
When the subregion of frame is background area, replicated and the subregion pair from the reference frame of the frame
The image of position is answered, the image that duplication is obtained is used as the image after subregion coding.
2. according to the method described in claim 1, it is characterised in that methods described also includes：
It is that the subregion sets the first background identifier when the subregion is background area, it is described
First background identifier is used to recognize that the subregion is background area in decoding process.
3. method according to claim 1 or 2, it is characterised in that methods described also includes：
When the subregion is non-background area, the module unit in the subregion is traveled through, if traversing
Module unit be background cell, then replicated from the reference frame of the frame with the module unit correspondence position
Image, the image that duplication is obtained is used as the image after module unit coding.
4. method according to claim 3, it is characterised in that methods described also includes：
If the module unit traversed is background cell, the second background identifier is set for the module unit,
The second background identifier is used to recognize that the module unit is background cell in decoding process.
5. a kind of method for video coding, it is characterised in that methods described includes：
It is that the subregion sets the first background identifier when the subregion of frame is background area, it is described
First background identifier is used to recognize that the subregion is background area in decoding process so as to institute
When stating subregion and being decoded, decoding apparatus is replicated and the subregion from the decoded reference frame of the frame
The image of correspondence position, the image that duplication is obtained is used as the decoded image of the subregion；
Obtain the image after the subregion coding.
6. method according to claim 5, it is characterised in that the acquisition subregion is compiled
Image after code, including：
From the reference coding frame of the frame, the image with the subregion correspondence position is replicated as described
Image after subregion coding.
7. the method according to claim 5 or 6, it is characterised in that methods described also includes：
When the subregion is non-background area, the module unit in the subregion is traveled through, if traversing
Module unit be background cell, then be the module unit set the second background identifier, second background
Identifier is used to recognize that the module unit is background cell in decoding process so as to the module unit
When being decoded, decoding apparatus is replicated and the module unit correspondence position from the decoded reference frame of the frame
Image, obtained image will be replicated and be used as the decoded image of the module unit；
Obtain the image after the module unit coding.
8. method according to claim 7, it is characterised in that the acquisition module unit is compiled
Image after code includes：
From the reference coding frame of the frame, the image with the module unit correspondence position is replicated as described
Image after module unit coding.
9. a kind of video encoding/decoding method, it is characterised in that methods described includes：
When frame subregion include the first background identifier when, from the reference frame of the frame replicate with it is described
The image of subregion correspondence position, will replicate obtained image as the decoded image of the subregion,
The first background identifier is used to identify the subregion for background area.
10. method according to claim 9, it is characterised in that methods described also includes：
When the subregion does not include the first background identifier, second is included if existing in the subregion
The module unit of background identifier, then replicate and the module unit correspondence position from the reference frame of the frame
Image, the image that duplication is obtained is used as the decoded image of the module unit, the second background mark
Accord with for identifying the module unit for background cell.
11. a kind of code device, it is characterised in that including：
Replication module, for when the subregion of the frame is background area, from the reference frame of the frame
The image with the subregion correspondence position is replicated, the image that duplication is obtained is encoded as the subregion
Image afterwards.
12. device according to claim 11, it is characterised in that described device also includes：
First setup module, for when the subregion is background area, being that the subregion sets the
One background identifier, the first background identifier is used to recognize that the subregion is the back of the body in decoding process
Scene area.
13. the device according to claim 11 or 12, it is characterised in that described device also includes：
Traversal and replication module, for when the subregion is non-background area, traveling through the subregion
Interior module unit, if the module unit traversed be background cell, from the reference frame of the frame replicate with
The image of the module unit correspondence position, the image that duplication is obtained is used as the figure after module unit coding
Picture.
14. device according to claim 13, it is characterised in that described device also includes：
Second setup module, if being background cell for the module unit traversed, sets for the module unit
The second background identifier is put, the second background identifier is used to recognize the module unit in decoding process
For background cell.
15. a kind of code device, it is characterised in that described device includes：
3rd setup module, for when the subregion of frame is background area, being that the subregion sets the
One background identifier, the first background identifier is used to recognize that the subregion is the back of the body in decoding process
Scene area so that when being decoded to the subregion, decoded reference frame of the decoding apparatus from the frame
Middle duplication and the image of the subregion correspondence position, the image that duplication is obtained are used as the subregion solution
Image after code；
First acquisition module, for obtaining the image after the subregion coding.
16. device according to claim 15, it is characterised in that the first acquisition module tool
Body is used for from the reference coding frame of the frame, and the image replicated with the subregion correspondence position is used as institute
State the image after subregion coding.
17. the device according to claim 15 or 16, it is characterised in that described device also includes：
Traversal and setup module, for when the subregion is non-background area, traveling through the subregion
Interior module unit, if the module unit traversed is background cell, the second background is set for the module unit
Identifier, the second background identifier is used to recognize that the module unit is background cell in decoding process,
So that when being decoded to the module unit, decoding apparatus replicated from the decoded reference frame of the frame with
The image of the module unit correspondence position, the image that duplication is obtained is used as the decoded figure of the module unit
Picture；
Second acquisition module, for obtaining the image after the module unit coding.
18. device according to claim 17, it is characterised in that the second acquisition module tool
Body is used for：From the reference coding frame of the frame, the image conduct with the module unit correspondence position is replicated
Image after the module unit coding.
19. a kind of decoding apparatus, it is characterised in that described device includes：
First copying image module, for when the subregion of frame includes the first background identifier, from described
The image with the subregion correspondence position is replicated in the reference frame of frame, the image that duplication is obtained is used as institute
The decoded image of subregion is stated, the first background identifier is used to identify the subregion for background area
Domain.
20. device according to claim 19, it is characterised in that described device also includes：
Second copying image module, for when the subregion does not include the first background identifier, if institute
The module unit for existing in subregion and including the second background identifier is stated, then is replicated from the reference frame of the frame
With the image of the module unit correspondence position, the image that duplication is obtained is decoded as the module unit
Image, the second background identifier is used to identify the module unit for background cell.
21. a kind of coding/decoding system, it is characterised in that including：As claim 12 to 14 is any one
Code device described in and the decoding apparatus as described in claim 19 or 20；Or, such as right will
Ask the code device described in 15 to 18 any one and the decoding apparatus as described in claim 19 or 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013918.9A CN106954082A (en) | 2016-01-07 | 2016-01-07 | Video coding-decoding method, coding and decoding device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013918.9A CN106954082A (en) | 2016-01-07 | 2016-01-07 | Video coding-decoding method, coding and decoding device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106954082A true CN106954082A (en) | 2017-07-14 |
Family
ID=59466224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013918.9A Withdrawn CN106954082A (en) | 2016-01-07 | 2016-01-07 | Video coding-decoding method, coding and decoding device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106954082A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4195969B2 (en) * | 2002-08-05 | 2008-12-17 | パナソニック株式会社 | Motion vector detection device |
| CN101742289A (en) * | 2008-11-14 | 2010-06-16 | 北京中星微电子有限公司 | Method, system and device for compressing video code stream |
| CN101742296A (en) * | 2008-11-14 | 2010-06-16 | 北京中星微电子有限公司 | Video encoding and decoding method and device capable of reducing stream data fluctuation |
| CN102150429A (en) * | 2008-09-11 | 2011-08-10 | 谷歌公司 | System and method for video encoding using constructed reference frame |
| CN103716641A (en) * | 2012-09-29 | 2014-04-09 | 浙江大学 | Predicted image generating method and predicted image generating device |
| CN103731669A (en) * | 2013-12-30 | 2014-04-16 | 广州华多网络科技有限公司 | Method and device for detecting SKIP macro block |
| CN104754333A (en) * | 2015-03-09 | 2015-07-01 | 湖南国科微电子有限公司 | Movement pre-estimation method used for monitoring scene |
-
2016
- 2016-01-07 CN CN201610013918.9A patent/CN106954082A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4195969B2 (en) * | 2002-08-05 | 2008-12-17 | パナソニック株式会社 | Motion vector detection device |
| CN102150429A (en) * | 2008-09-11 | 2011-08-10 | 谷歌公司 | System and method for video encoding using constructed reference frame |
| CN101742289A (en) * | 2008-11-14 | 2010-06-16 | 北京中星微电子有限公司 | Method, system and device for compressing video code stream |
| CN101742296A (en) * | 2008-11-14 | 2010-06-16 | 北京中星微电子有限公司 | Video encoding and decoding method and device capable of reducing stream data fluctuation |
| CN103716641A (en) * | 2012-09-29 | 2014-04-09 | 浙江大学 | Predicted image generating method and predicted image generating device |
| CN103731669A (en) * | 2013-12-30 | 2014-04-16 | 广州华多网络科技有限公司 | Method and device for detecting SKIP macro block |
| CN104754333A (en) * | 2015-03-09 | 2015-07-01 | 湖南国科微电子有限公司 | Movement pre-estimation method used for monitoring scene |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102907095B (en) | Local multi assumes the execution method and device of prediction | |
| CN103096055B (en) | The method and apparatus of a kind of image signal intra-frame prediction and decoding | |
| CN111405283A (en) | End-to-end video compression method, system and storage medium based on deep learning | |
| CN108632617A (en) | The method for deriving reference prediction mode value | |
| CN108495135A (en) | A kind of fast encoding method of screen content Video coding | |
| CN102439975B (en) | For going in artifact filtering in response to the determination of the filter parameter of variable conversion and the method and apparatus of selection based on openness | |
| CN108271024A (en) | Image coding, coding/decoding method and device | |
| CN107404648B (en) | A kind of multi-channel video code-transferring method based on HEVC | |
| CN102265611A (en) | Localized in-loop filtering with multiple filters in hybrid video coding | |
| CN107888929A (en) | Video coding coding/decoding method, equipment and generation and the method for stored bits stream | |
| CN112738511B (en) | Fast mode decision method and device combined with video analysis | |
| CN106937116A (en) | Low-complexity video coding method based on random training set adaptive learning | |
| CN107396102A (en) | A kind of inter-frame mode fast selecting method and device based on Merge technological movement vectors | |
| CN106101714B (en) | A kind of and tightly coupled H.264 video information hiding method of compression encoding process | |
| CN104811729B (en) | A kind of video multi-reference frame coding method | |
| CN108769696A (en) | A kind of DVC-HEVC video transcoding methods based on Fisher discriminates | |
| CN108965887A (en) | A kind of video information hiding method and device based on uncoupling between block | |
| CN106331700A (en) | Coding and decoding methods of reference image, coding device, and decoding device | |
| CN105681803B (en) | A kind of HEVC video information hiding methods of large capacity | |
| CN107820095A (en) | A kind of long term reference image-selecting method and device | |
| CN106534871B (en) | The coding method of Video Codec and coding/decoding method | |
| CN106131573B (en) | A kind of HEVC spatial resolutions code-transferring method | |
| CN104363454B (en) | A kind of video coding and decoding method and system of high code rate image | |
| CN104104948A (en) | Video transcoding method and video transcoder | |
| CN111385555A (en) | Data compression method and device for inter-component prediction of original and/or residual data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170714 |