CN107124590A - Panoramic video compression method, storage medium and video camera based on sound source direction - Google Patents
Panoramic video compression method, storage medium and video camera based on sound source direction Download PDFInfo
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- CN107124590A CN107124590A CN201710375140.0A CN201710375140A CN107124590A CN 107124590 A CN107124590 A CN 107124590A CN 201710375140 A CN201710375140 A CN 201710375140A CN 107124590 A CN107124590 A CN 107124590A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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Abstract
The invention discloses a kind of panoramic video compression method, storage medium and video camera based on sound source direction, methods described includes：The sound source position of the first panoramic picture of panoramic camera current shooting is obtained, and first panoramic picture is divided into by some regions according to the sound source position；According to the resolution ratio in the really each region of the relation of some regions and the sound source position, and first panoramic picture is compressed according to the resolution ratio.First panoramic picture is divided into some regions by the present invention by sound source position, and each region sets resolution ratio, different divisions can be so carried out to the first panoramic picture according to the difference of sound source position, so as to which the panoramic video file synthesized by first panoramic picture can change and change the position in region according to sound source position, the use to user is brought convenience.
Description
Technical field
The present invention relates to intelligent terminal technical field, more particularly to a kind of panoramic video compression side based on sound source direction
Method, storage medium and video camera.
Background technology
With research and application of the domestic and international scientific ＆ technical corporation to virtual reality in recent years, current panoramic photographing technique is
Reach its maturity, correlation technique have been put into tourist attractions shoot, movies-making, product news conference, the field such as concert, it is seen that
Existing certain market.Panoramic video shoot generally require multiple cameras, by multiple cameras are shot come high definition regard
Frequency file is spliced, and generates panoramic video file.A problem is presently, there are, is synthesized, ultimately generated by multiple HD videos
File it is very huge, be not easy to the transmission in network.For example carried out at classroom instruction field, A at classroom instruction, B
Ongoing classroom instruction at A is experienced by panoramic technique remote online.If directly by the huge video file of this file by A
Place is transmitted to B, in the case that network environment is superior, and width pressure is also very big, to the processing speed of each node-routing
The requirement of degree is also very high, easily interim card situation occurs at B.If video first is carried out into resolution decreasing processing at A, will entirely it regard
Frequency is adjusted to smooth by high definition, although the problem of network interim card so can be solved, and B can feel when being in viewing panoramic video
Obscure very much, the use to user brings constant.
Thus prior art could be improved and improve.
The content of the invention
In view of the shortcomings of the prior art, the invention aims to provide a kind of panoramic video compression based on sound source direction
Method, storage medium and video camera, to realize the effect for following sound source position adjust automatically area-of-interest.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is as follows：
A kind of panoramic video compression method based on sound source direction, it includes：
Obtain the sound source position of the first panoramic picture of panoramic camera current shooting, and according to the sound source position by described the
One panoramic picture is divided into some regions；
According to the resolution ratio in the really each region of the relation of some regions and the sound source position, and according to the resolution ratio
First panoramic picture is compressed.
The panoramic video compression method based on sound source direction, wherein, the acquisition panoramic camera current shooting
The sound source position of first panoramic picture, and first panoramic picture is divided into before some regions according to the sound source position
Including：
When panoramic camera shoots the first panoramic picture, the sound source position of first panoramic picture is oriented；
The sound source position is saved as into script file, and the script file is associated with first panoramic picture.
The panoramic video compression method based on sound source direction, wherein, it is described when panoramic camera shoots the first panorama
During image, the sound source position for orienting first panoramic picture is specifically included：
When panoramic camera shoots the first panoramic picture, judge whether first panoramic picture carries sound；
When carrying sound, the sound source position of the sound is oriented；
When not carrying sound, the second panoramic picture of the carrying sound apart from first panoramic picture recently is obtained, and will
The corresponding sound source position of second panoramic picture is orientated the sound source position of the first panoramic picture.
The panoramic video compression method based on sound source direction, wherein, it is described when not carrying sound, obtain apart from institute
The second panoramic picture of the carrying sound of the first panoramic picture recently is stated, and by the corresponding sound source position of second panoramic picture
Include after the sound source position for being orientated the first panoramic picture：
When not getting the second panoramic picture, default sound source position is orientated to the sound source position of first panoramic picture.
The panoramic video compression method based on sound source direction, wherein, the acquisition panoramic camera current shooting
The sound source position of first panoramic picture, and it is specific according to the sound source position first panoramic picture to be divided into some regions
Including：
The sound source position of the first panoramic picture of panoramic camera current shooting is obtained, and in institute centered on the sound source position
State and some polygons are set on the first panoramic picture；
First panoramic picture is divided into some regions by some polygons, wherein, some region non-overlapping copies.
Panoramic video compression method based on sound source direction, wherein, it is described according to some regions and sound source position
The resolution ratio in the really each region of the relation put, and specific bag is compressed to first panoramic picture according to the resolution ratio
Include：
Obtain respectively each region boundary rectangle long side to the sound source position distance
Resolution ratio is set for each region according to the relation being inversely proportional with the distance, and according to the resolution ratio to described first
Panoramic picture is compressed.
The panoramic video compression method based on sound source direction, wherein, in each region minute of all pixels point
Resolution is set according to the inverse ratio of its distance away from sound source position.
The panoramic video compression method based on sound source direction, wherein, the pixel of the two neighboring region intersection
The resolution ratio of point is equal.
A kind of storage medium, its a plurality of instruction that is stored with, the instruction is suitable to be loaded by processor and performed as above any
The panoramic video compression method based on sound source direction.
A kind of video camera, it includes：
Processor, is adapted for carrying out each instruction；And
Storage device, suitable for storing a plurality of instruction, the instruction be suitable to be loaded by processor and performed it is as above any described in be based on
The panoramic video compression method of sound source direction.
Beneficial effect：Compared with prior art, the invention provides a kind of panoramic video compression side based on sound source direction
Method, storage medium and video camera, methods described include：Obtain the sound source position of the first panoramic picture of panoramic camera current shooting
Put, and first panoramic picture is divided into by some regions according to the sound source position；According to some regions with it is described
The resolution ratio in the really each region of the relation of sound source position, and first panoramic picture is pressed according to the resolution ratio
Contracting.First panoramic picture is divided into some regions by the present invention by sound source position, and each region sets resolution ratio,
Different divisions can be so carried out to the first panoramic picture according to the difference of sound source position, so that by first panorama sketch
The panoramic video file of picture synthesis can change the position of ROI region according to sound source, and the use to user is brought convenience.
Brief description of the drawings
The flow chart for the panoramic video compression method preferred embodiment based on sound source direction that Fig. 1 provides for the present invention.
The schematic diagram in 3 regions in the panoramic video compression method based on sound source direction that Fig. 2 provides for the present invention.
The structure principle chart for the video camera preferred embodiment that Fig. 3 provides for the present invention.
Embodiment
The present invention provides a kind of panoramic video compression method, storage medium and video camera based on sound source direction, to make this
The purpose of invention, technical scheme and effect are clearer, clear and definite, and the embodiment that develops simultaneously referring to the drawings is to of the invention further detailed
Describe in detail bright.It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to there is the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or wireless coupling.It is used herein to arrange
Taking leave "and/or" includes one or more associated wholes or any cell for listing item and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology), with the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, it should be understood that with the context with prior art
The consistent meaning of meaning, and unless by specific definitions as here, otherwise will not use idealization or excessively formal implication
To explain.
Below in conjunction with the accompanying drawings, by the description to embodiment, the content of the invention is described further.
It refer to Fig. 1, the preferred embodiment for the panoramic video compression method based on sound source direction that Fig. 1 provides for the present invention
Flow chart.Methods described includes：
S100, the first panoramic picture of acquisition panoramic camera current shooting sound source position, and will according to the sound source position
First panoramic picture is divided into some regions.
Specifically, the panoramic camera can gather the audio-frequency information and video information of scene to be captured, the audio
The microphone array collection that information can be configured by panoramic camera, what video information can be configured by panoramic camera takes the photograph
As head is shot.The panoramic camera can configure multiple cameras, can also configure 360 degree of full-view cameras.It is described
The first panoramic picture for obtaining panoramic camera current shooting can be that panoramic camera obtains the shot self by camera
It is first complete that one panoramic picture or the terminal device that is connected with panoramic camera obtain that the panoramic camera shoots
Scape image.It is worth explanation, the compression process of first panoramic picture is a real-time process, i.e., for panoramic camera
Each panoramic picture of collection is compressed using the method for the present invention, and when the change of sound source position, region division
Position it is also different, be to be illustrated by taking a panoramic picture as an example here.
The sound source position refers to first panoramic picture pair that the panoramic camera is collected by microphone
The location of sound source of sound answered.For example, when panoramic camera shoots the video of teachers ' classroom teaching, the sound source position
It is set to the location of described teacher.That is, the sound source position can be oriented by the microphone.Here,
The sound source position refers to the center of the sound source, and the position of the sound source can be recorded by the position of coordinate points
Put, and the coordinate of the sound source position can be stored by the form of script file, and it is related to first panoramic picture
Connection, so can quickly determine according to first panoramic picture and call its corresponding sound source position.
Exemplary, the sound source position of first panoramic picture for obtaining panoramic camera current shooting, and according to institute
Stating before first panoramic picture is divided into some regions by sound source position includes：
S01, when panoramic camera shoots the first panoramic picture, orient the sound source position of first panoramic picture；
S02, the sound source position is saved as to script file, and the script file is related to first panoramic picture
Connection.
Specifically, the panoramic camera shoots the first panoramic picture and refers to what the panoramic camera was configured by it
The current panorama image that some cameras are shot, is designated as the first panoramic picture.Also, pass through the same of camera photographing panorama picture
When, the microphone array that can also be configured by it gathers audio-frequency information, and orients the sound source position of the audio-frequency information.Also
It is to say, the sound source position is the sound source position for the sound that first panoramic picture is carried.In the present embodiment, it is described by sound
Source position saves as script file and is specifically as follows when the microphone array recording that panoramic camera is configured, and passes through the Mike
Wind array carries out sound source direction, and the direction for recording sound identifies sound centre coordinate information of speaking to generate script in script
（X, y）Script file is preserved into as the sound source position of the sound, and by the script.
In one embodiment of the invention, the first panoramic picture that panoramic camera is shot may not carry sound, from
And when panoramic camera shoots the first panoramic picture after can also include deterministic process, for judging that described first is complete
Whether scape image carries sound, and is operated accordingly according to judged result, can so ensure each first panoramic picture
Sound source position is carried, so as to improve the accuracy of region division.Accordingly, the step S01, described work as panoramic shooting
When machine shoots the first panoramic picture, the sound source position for orienting first panoramic picture is specifically included：
S011, when panoramic camera shoot the first panoramic picture when, judge whether first panoramic picture carries sound；
S012, when carrying sound, orient the sound source position of the sound；
S013, when not carrying sound, obtain apart from first panoramic picture recently carrying sound the second panoramic picture,
And the corresponding sound source position of second panoramic picture is orientated to the sound source position of the first panoramic picture.
Specifically, it is described to refer to shooting time apart from first panoramic picture recently apart from first panoramic picture
Shooting time is nearest.
In yet another embodiment of the present invention, first panoramic picture can be first image shot, also may be used
, to shoot the panoramic picture for including sound, to be taken before first panoramic picture before can also be first panoramic picture
Panoramic picture with sound and its time apart are longer etc..So as to when to carry sound, judge including one
Journey, for judging sound source position.Accordingly, it is described when not carrying sound, obtain nearest apart from first panoramic picture
The second panoramic picture of sound is carried, and the corresponding sound source position of second panoramic picture is orientated the first panoramic picture
Sound source position can specifically include：
S0131, when not carrying sound, obtain apart from first panoramic picture recently carrying sound the second panorama sketch
Picture；
S0132, when getting the second panoramic picture, determine the shooting time and the second panoramic picture of first panoramic picture
Shooting time time interval, and the time interval and preset duration are compared；
S0133, when the time interval be less than or equal to the preset duration when, then by the corresponding sound source of second panoramic picture
Orientation for place is the sound source position of the first panoramic picture；
S0134, when for get the second panoramic picture/time interval more than the preset duration when, by default sound source position
Put the sound source position for being orientated first panoramic picture.
Specifically, the preset duration is pre-set, for example, 1 minute, 2 minutes etc..The default sound source position can
To pre-set, e.g., center of image etc.；It can also be according to the specific of present image-recognizing method determination
The position of object, e.g., position of teacher etc..Sound source position can be so determined more accurately so that the division in region is more
Accurately.
In one embodiment of the invention, the sound source of first panoramic picture for obtaining panoramic camera current shooting
Position, and first panoramic picture is divided into by some regions according to the sound source position specifically included：
S101, the first panoramic picture of acquisition panoramic camera current shooting sound source position, and using the sound source position in
The heart sets some polygons on first panoramic picture；
First panoramic picture is divided into some regions by S102, some polygons, wherein, some regions are mutual not
It is overlapping.
Specifically, the polygon can be the regular figures such as square, rectangle.Certainly, in the change of the present embodiment
In shape embodiment, some circles can also be set to wait other figures in first panoramic image.In this embodiment, it is described polygon
Shape is rectangle, and the center that several rectangles are is sound source position.The number of the rectangle is 2, and according to its long side
The first rectangle and the second rectangle, distance of the sound source position to the long side of the first rectangle are designated as respectively to sound source position distance
Less than sound source position to the long side of the second rectangle and distance.First rectangle and the second rectangle draw first panoramic picture
It is divided into three regions.
Three regions are designated as area-of-interest, transitional region and regions of non-interest, the region of interest respectively
Domain, transitional region and regions of non-interest stretch out successively relative to the sound source position.That is, described interested
The region that the rectangle of region first is constituted, the transitional region is to be the first rectangle with exterior domain and the intersection of the second rectangular area
Domain, the regions of non-interest is the region beyond the second rectangle.Be worth explanation, the area-of-interest, transitional region with
And regions of non-interest non-overlapping copies.
In order to describe the area-of-interest, transitional region in detail with the partition process of regions of non-interest, one is provided
The specific example of region division.As described in Figure 2, it is assumed that sound source position is（X, y）If four summits of the first rectangle are respectively A
（X-a, y-b）B（X-a, y+b）C（X+a, y+b）D（X+a, y-b）, four summits difference E of the second rectangular area（X-2a, y-
2b）F（X-2a, y+2b）H（X+2a, y+2b）G（X+2a, y-2b）；So described area-of-interest is by A（X-a, y-b）B（x-
A, y+b）C（X+a, y+b）D（X+a, y-b）4 points of first rectangular areas for being linked to be, transitional region is main visual zone to E（x-
2a, y-2b）F（X-2a, y+2b）H（X+2a, y+2b）G（X+2a, y-2b）Region between 4 points of second rectangular areas for being linked to be,
The regions of non-interest is E（X-2a, y-2b）F（X-2a, y+2b）H（X+2a, y+2b）G（X+2a, y-2b）4 points are linked to be
Region beyond region.
S200, the resolution ratio according to some regions and the really each region of relation of the sound source position, and according to
The resolution ratio is compressed to first panoramic picture.
Specifically, some regions and the relation of the sound source position refer to the sound source position to some areas
The relation of the distance in domain.In the present embodiment, the sound source position refers to that the sound source position is arrived to the distance in some regions
The distance on the long side of the boundary rectangle in some regions.And each region pair is determined using the relation being inversely proportional with the distance
The resolution ratio answered, and first panoramic picture is compressed according to the resolution ratio.
Exemplary, the resolution in the really each region of the relation according to some regions and the sound source position
Rate, and first panoramic picture is compressed according to the resolution ratio specifically included：
S201, obtain respectively each region boundary rectangle long side to the sound source position distance
S202, according to the relation being inversely proportional with the distance for each region resolution ratio is set, and according to the resolution ratio to institute
The first panoramic picture is stated to be compressed.
Specifically, it is described with it is described apart from smaller apart from inversely referring to, its corresponding resolution ratio is higher.
In order that described image resolution ratio change it is more smooth, for all pixels point in each region resolution ratio according to
The inverse ratio of its distance away from sound source position is set.Also, the resolution ratio of the pixel of two neighboring region intersection is equal.So
When avoiding viewing region of interest overseas other regions when user rotates head, human eye directly goes to low from high-resolution areas
It is uncomfortable caused by resolution.Certainly, in the variant embodiment of the present embodiment, area-of-interest and regions of non-interest
Interior resolution ratio could be arranged to always, and the resolution ratio of transitional region is set to progressive formation.For example, area-of-interest is differentiated
Rate is 4k resolution ratio, and regions of non-interest is 1024 resolution ratio.Transitional region is 4k resolution ratio close to the edge of main visual zone,
Resolution ratio close to the edge of pair visual zone is 1024 resolution ratio, and the resolution ratio of transitional region is gradually decrease to 1024 points by 4k
Resolution.
In summary, the invention provides the panoramic video compression method based on sound source direction, it will according to sound source position
The panoramic picture is divided into area-of-interest, transitional region and regions of non-interest, and three regions are with sound source
The change in direction and dynamic is adjusted, can guarantee that area-of-interest follows most important video information, while only retaining main visual area
Domain is high-resolution areas, and the resolution ratio of transitional region and secondary visual zone is all lower than area-of-interest, can effectively reduce panorama
The file size of video, it is adaptable to which real-time online is transmitted, and can effectively be reduced broadband pressure, is particularly suitable for use in classroom panoramic video
Real time education.In addition, the present invention is also provided with transitional region, it is to avoid user watches its outside main visual zone when rotating head
During its region, human eye directly goes to uncomfortable caused by low resolution region from high-resolution areas.
Present invention also offers a kind of storage medium, its a plurality of instruction that is stored with, the instruction is suitable to be loaded by processor
And perform as above any panoramic video compression method based on sound source direction.
Present invention also offers a kind of video camera, as shown in figure 3, it includes：
Processor 100, is adapted for carrying out each instruction；And
Storage device 200, suitable for storing a plurality of instruction, the instruction is suitable to be loaded by processor and perform as above any base
In the panoramic video compression method of sound source direction.
The code process process of above-mentioned storage medium and video camera has been described in detail in the above-mentioned methods, herein
Just no longer state one by one.
In embodiment provided by the present invention, it should be understood that disclosed system and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the module, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are to cause a computer
Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each
The part steps of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of panoramic video compression method based on sound source direction, it is characterised in that it includes：
Obtain the sound source position of the first panoramic picture of panoramic camera current shooting, and according to the sound source position by described the
One panoramic picture is divided into some regions；
According to the resolution ratio in the really each region of the relation of some regions and the sound source position, and according to the resolution ratio
First panoramic picture is compressed.
2. the panoramic video compression method based on sound source direction according to claim 1, it is characterised in that the acquisition panorama
The sound source position of first panoramic picture of video camera current shooting, and drawn first panoramic picture according to the sound source position
Include before being divided into some regions：
When panoramic camera shoots the first panoramic picture, the sound source position of first panoramic picture is oriented；
The sound source position is saved as into script file, and the script file is associated with first panoramic picture.
3. the panoramic video compression method based on sound source direction according to claim 2, it is characterised in that described when panorama is taken the photograph
When camera shoots the first panoramic picture, the sound source position for orienting first panoramic picture is specifically included：
When panoramic camera shoots the first panoramic picture, judge whether first panoramic picture carries sound；
When carrying sound, the sound source position of the sound is oriented；
When not carrying sound, the second panoramic picture of the carrying sound apart from first panoramic picture recently is obtained, and will
The corresponding sound source position of second panoramic picture is orientated the sound source position of the first panoramic picture.
4. the panoramic video compression method based on sound source direction according to claim 3, it is characterised in that described not carry
During sound, the second panoramic picture of the carrying sound apart from first panoramic picture recently is obtained, and by second panorama
The corresponding sound source position of image includes after being orientated the sound source position of the first panoramic picture：
When not getting the second panoramic picture, default sound source position is orientated to the sound source position of first panoramic picture.
5. the panoramic video compression method based on sound source direction according to claim 1-4 is any, it is characterised in that described to obtain
Take the sound source position of the first panoramic picture of panoramic camera current shooting, and according to the sound source position by first panorama
Image is divided into some regions and specifically included：
The sound source position of the first panoramic picture of panoramic camera current shooting is obtained, and in institute centered on the sound source position
State and some polygons are set on the first panoramic picture；
First panoramic picture is divided into some regions by some polygons, wherein, some region non-overlapping copies.
6. the panoramic video compression method based on sound source direction according to claim 1, it is characterised in that described in the basis
The resolution ratio in some regions and the really each region of relation of the sound source position, and it is complete to described first according to the resolution ratio
Scape image, which is compressed, to be specifically included：
Obtain respectively each region boundary rectangle long side to the sound source position distance；
Resolution ratio is set for each region according to the relation being inversely proportional with the distance, and according to the resolution ratio to described first
Panoramic picture is compressed.
7. the panoramic video compression method based on sound source direction according to claim 1 or 6, it is characterised in that described each
The resolution ratio of all pixels point is set according to the inverse ratio of its distance away from sound source position in region.
8. the panoramic video compression method based on sound source direction according to claim 7, it is characterised in that described two neighboring
The resolution ratio of the pixel of region intersection is equal.
9. a kind of storage medium, it is characterised in that its a plurality of instruction that is stored with, the instruction is suitable to be loaded and performed by processor
The panoramic video compression method based on sound source direction as described in claim 1-8 is any.
10. a kind of video camera, it is characterised in that it includes：
Processor, is adapted for carrying out each instruction；And
Storage device, suitable for storing a plurality of instruction, the instruction is suitable to be loaded by processor and performed as claim 1-8 is any
The panoramic video compression method based on sound source direction.
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Cited By (3)
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