CN108389159A - A kind of distortion correction method and terminal - Google Patents
A kind of distortion correction method and terminal Download PDFInfo
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- CN108389159A CN108389159A CN201810162833.6A CN201810162833A CN108389159A CN 108389159 A CN108389159 A CN 108389159A CN 201810162833 A CN201810162833 A CN 201810162833A CN 108389159 A CN108389159 A CN 108389159A
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Abstract
The embodiment of the invention discloses a kind of distortion correction methods, including：A wide-angle photo is shot using the camera of terminal；Determine the distorted region in the wide-angle photo and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is the integer more than or equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；Subregion and the non-distorted region after described M is corrected splice.Distorted region can be divided into using the embodiment of the present invention by M region, then the M region is subjected to distortion correction respectively, spliced by the M sub-regions after correction, to reduce the distortion degree of distorted region.
Description
Technical field
The present embodiments relate to technical field of electronic equipment more particularly to a kind of distortion correction method and terminals.
Background technology
With the rapid development of information technology, the integrated achievable function of terminal is more and more, such as takes pictures, surfs the Internet, swims
Play, shopping etc., but terminal is not omnipotent, in the prior art, terminal can be realized and be taken pictures, but model is taken pictures during taking pictures
Enclose that there is certain constraints.
Under normal conditions, it will recognize that and taken pictures using wide-angle camera, but wide-angle camera shoots the image come
Distortion is being generated beyond the region except certain angle range, the generation of this distortion is the characteristic due to wide-angle camera itself
Caused by, how this problem of being corrected of distorting never effectively is solved.
Invention content
An embodiment of the present invention provides a kind of method of distortion correction and terminals, to generating distortion in camera image
Region be corrected, to reduce distortion degree.
First aspect of the embodiment of the present invention discloses a kind of method of distortion correction, including step：
A wide-angle photo is shot using the camera of terminal；
Determine the distorted region in the wide-angle photo and non-distorted region；
The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is more than or equal to 1
Integer；
Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；
Subregion and the non-distorted region after described M is corrected splice.
Correspondingly, second aspect of the embodiment of the present invention discloses a kind of terminal, including：
Shooting unit, for shooting a wide-angle photo using the camera of terminal；
Determination unit, for determining distorted region and non-distortion area in wide-angle photo that the shooting unit takes
Domain；
Division unit, the distorted region for determining the determination unit are divided into M according to predetermined angle interval
Subregion, wherein M is the integer more than or equal to 1；
Unit is corrected, the M sub-regions for being divided to the division unit carry out distortion correction respectively, to obtain M
Subregion after correction；
Concatenation unit, for splicing the subregion after the corrected M correction of the correction unit.
The embodiment of the present invention shoots a wide-angle photo using the camera of terminal；Determine the distortion in the wide-angle photo
Region and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M be more than
Or the integer equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；By the M
Subregion and the non-distorted region after a correction are spliced.Distorted region can be divided into using the embodiment of the present invention
M region, then the M region is subjected to distortion correction respectively, splice by the M sub-regions after correction, it is abnormal to reduce
Become the distortion degree in region.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to required in embodiment, description
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the embodiment of the present invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of flow diagram of the first embodiment of the method for distortion correction provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of the second embodiment of the method for distortion correction provided in an embodiment of the present invention；
Fig. 3 is a kind of flow diagram of the 3rd embodiment of the method for distortion correction provided in an embodiment of the present invention；
Fig. 4 a are a kind of structural schematic diagram of the first embodiment of terminal provided in an embodiment of the present invention；
Fig. 4 b are a kind of another structural schematic diagram of the first embodiment of terminal provided in an embodiment of the present invention；
Fig. 4 c are a kind of another structural schematic diagram of the first embodiment of terminal provided in an embodiment of the present invention；
Fig. 4 d are a kind of another structural schematic diagram of the first embodiment of terminal provided in an embodiment of the present invention；
Fig. 4 e are a kind of another structural schematic diagram of the first embodiment of terminal provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of the second embodiment of terminal provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the embodiment of the present invention, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained belongs to the range of protection of the embodiment of the present invention.
In realization, in the embodiment of the present invention, terminal can include but is not limited to：Laptop, mobile phone, tablet computer,
Intelligent wearable device etc..The system of terminal refers to the operating system of equipment, can include but is not limited to：Android system, plug
Class's system, Windows systems, IOS (Mobile operating system of Apple Inc.'s exploitation), XP systems, 8 systems of windows etc..
It should be noted that Android terminal refers to the terminal of android system, Saipan terminal refers to the terminal, etc. of Saipan system.On
It is citing to state terminal only, and non exhaustive, including but not limited to above-mentioned terminal.
In implementation, camera described in the embodiment of the present invention is wide-angle camera, and range is commonly taken the photograph more than existing
As the photo angle of head.
Combination of embodiment of the present invention Fig. 1 to Fig. 5 is to a kind of method and terminal of distortion correction provided in an embodiment of the present invention
It is described.
Referring to Fig. 1, Fig. 1 is a kind of flow of the first embodiment of the method for distortion correction provided in an embodiment of the present invention
Schematic diagram.The method of distortion correction described in the present embodiment, including step：
S101, a wide-angle photo is shot using the camera of terminal.
Wherein, terminal shoots a wide-angle photo using the camera of the terminal
As a kind of possible embodiment, terminal can using terminal camera shoot a wide-angle photo before,
Determine the pre- photo angle range of the camera of the terminal, user, can be according to wanting to take pictures when starting the camera of terminal
Scenery adjustment shooting angular range, the size that pre- photo angle range is exactly user according to region shared by scenery in scene
It is determined.Terminal can first obtain the touching instruction of the photo angle range of user's selection, and taking the photograph for terminal is determined according to the instruction
As the pre- photo angle range of head.For example, if the scenery range in scene is smaller, pre- photo angle range can be adjusted to general
The camera lens range of logical camera, in this case, the photo distortion very little taken pictures, it is believed that undistorted；If in scene
Scenery range it is larger, have been over the camera lens range of common camera, the image of pre- photo angle range may carry out
Distortion correction.
As a kind of possible embodiment, the camera of terminal can be front camera or the postposition camera shooting of terminal
Head；Alternatively, the camera of terminal can be terminal wirelessly or wired mode control camera.
S102, distorted region and non-distorted region in the wide-angle photo are determined.
Wherein, terminal can determine that the distorted region in wide-angle photo and non-distorted region, terminal can be arranged one in advance in advance
If threshold value, the region that will be greater than the pixel composition of the predetermined threshold value is determined as distorted region, will be less than or equal to the default threshold
The region of value is determined as non-distorted region, and further, the size of predetermined threshold value can be voluntarily arranged by user or system default.
It should be noted that under normal conditions, due to the characteristic of wide-angle camera itself, thus, the distortion of wide-angle camera is deposited always
, and wide-angle camera has symmetry characteristic under normal conditions, with the center of wide-angle camera to both sides, distortion factor
Present symmetrical, distortion factor occurred in the prior art, did not described excessively herein.Distortion factor indicates wide-angle
The distortion degree of the image of camera shooting, the distortion factor of wide-angle camera is bigger, illustrates that distortion is bigger, and wide-angle camera
Distortion factor in a certain range, i.e., distortion factor be less than a certain predetermined threshold value the case where, then it is believed that distortion factor be less than
The corresponding region of a certain predetermined threshold value is non-distorted region, and corresponding photo angle range may be defined as undistorted photo angle
Range.
S103, the distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is to be more than or wait
In 1 integer.
Wherein, distorted region can be divided into M sub-regions by terminal according to predetermined angle interval, wherein M be more than or
Integer equal to 1, during specific implementation, M is bigger, then the pattern distortion degree obtained after distortion calibration is smaller, between processing
The processing speed of device, it is proposed that predetermined angle is set to 0.1 degree or so and is divided to distorted region.
S104, distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction.
Wherein, terminal can carry out distortion correction respectively to M sub-regions, to obtain the subregion after M correction, due to every
The distortion degree of sub-regions is different, thus, the processing mode used to M region can be different.
As a kind of possible embodiment, terminal can determine the average distortion system of any subregion i in the M sub-regions
Number；And distortion correction is carried out to any subregion i according to the average distortion coefficient.For any subregion i, it may be determined that this is any
The distortion factor of each pixel, average distortion coefficient is sought so as to the distortion factor to each pixel in subregion i.Root
Distortion correction is carried out to any subregion i according to the average distortion coefficient.
S105, by described M correction after subregion and the non-distorted region splice.
Wherein, subregion and non-distorted region after terminal can correct M splice.
The embodiment of the present invention shoots a wide-angle photo using the camera of terminal；Determine the distortion in the wide-angle photo
Region and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M be more than
Or the integer equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；By the M
Subregion and the non-distorted region after a correction are spliced.Distorted region can be divided into using the embodiment of the present invention
M region, then the M region is subjected to distortion correction respectively, splice by the M sub-regions after correction, it is abnormal to reduce
Become the distortion degree in region.
Referring to Fig. 2, Fig. 2 is a kind of flow of the second embodiment of the method for distortion correction provided in an embodiment of the present invention
Schematic diagram.The method of distortion correction described in the present embodiment, including step：
S201, a wide-angle photo is shot using the camera of terminal.
Wherein, terminal shoots a wide-angle photo using the camera of the terminal
As a kind of possible embodiment, terminal can using terminal camera shoot a wide-angle photo before,
Determine the pre- photo angle range of the camera of the terminal, user, can be according to wanting to take pictures when starting the camera of terminal
Scenery adjustment shooting angular range, the size that pre- photo angle range is exactly user according to region shared by scenery in scene
It is determined.Terminal can first obtain the touching instruction of the photo angle range of user's selection, and taking the photograph for terminal is determined according to the instruction
As the pre- photo angle range of head.For example, if the scenery range in scene is smaller, pre- photo angle range can be adjusted to general
The camera lens range of logical camera, in this case, the photo distortion very little taken pictures, it is believed that undistorted；If in scene
Scenery range it is larger, have been over the camera lens range of common camera, the image of pre- photo angle range may carry out
Distortion correction.
As a kind of possible embodiment, the camera of terminal can be front camera or the postposition camera shooting of terminal
Head；Alternatively, the camera of terminal can be terminal wirelessly or wired mode control camera.
S202, distorted region and non-distorted region in the wide-angle photo are determined.
Wherein, terminal can determine that the distorted region in wide-angle photo and non-distorted region, terminal can be arranged one in advance in advance
If threshold value, the region that will be greater than the pixel composition of the predetermined threshold value is determined as distorted region, will be less than or equal to the default threshold
The region of value is determined as non-distorted region, and further, the size of predetermined threshold value can be voluntarily arranged by user or system default.
It should be noted that under normal conditions, due to the characteristic of wide-angle camera itself, thus, the distortion of wide-angle camera is deposited always
, and wide-angle camera has symmetry characteristic under normal conditions, with the center of wide-angle camera to both sides, distortion factor
Present symmetrical, distortion factor occurred in the prior art, did not described excessively herein.Distortion factor indicates wide-angle
The distortion degree of the image of camera shooting, the distortion factor of wide-angle camera is bigger, illustrates that distortion is bigger, and wide-angle camera
Distortion factor in a certain range, i.e., distortion factor be less than a certain predetermined threshold value the case where, then it is believed that distortion factor be less than
The corresponding region of a certain predetermined threshold value is non-distorted region, and corresponding photo angle range may be defined as undistorted photo angle
Range.
S203, the distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is to be more than or wait
In 1 integer.
Wherein, distorted region can be divided into M sub-regions by terminal according to predetermined angle interval, wherein M be more than or
Integer equal to 1, during specific implementation, M is bigger, then the pattern distortion degree obtained after distortion calibration is smaller, between processing
The processing speed of device, it is proposed that predetermined angle is set to 0.1 degree or so and is divided to distorted region.
S204, distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction.
Wherein, terminal can carry out distortion correction respectively to M sub-regions, to obtain the subregion after M correction, due to every
The distortion degree of sub-regions is different, thus, the processing mode used to M region can be different.
S205, the boundary line for determining subregion and the non-distorted region after the M correction.
Wherein, terminal can be according to some tools used in boundary line of the M sub-regions in wide-angle photo and correction course
The boundary line of subregion rather than distorted region after the determination correction of body algorithm after M correction can be determined according to wide-angle photo.
S206, according to the boundary line by subregion and the non-distorted region after described M correction according to it is described
The corresponding sequence of wide-angle photo is spliced.
Wherein, terminal according to the boundary line by subregion and the non-distorted region after M correction according to wide-angle photo pair
The sequence answered is spliced.Wherein, M sub-regions and non-distorted region are all corresponding with the scenery sequence in wide-angle photo.
The embodiment of the present invention shoots a wide-angle photo using the camera of terminal；Determine the distortion in the wide-angle photo
Region and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M be more than
Or the integer equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；Determine institute
State the boundary line of the subregion and the non-distorted region after M correction；Son after correcting described M according to the boundary line
Region and the non-distorted region are spliced according to sequence corresponding with the wide-angle photo.It can be incited somebody to action using the embodiment of the present invention
Distorted region is divided into M region, then the M region is carried out distortion correction respectively, the M sub-regions after it will correct into
Row splicing, to reduce the distortion degree of distorted region.
Referring to Fig. 3, Fig. 3 is a kind of flow of the 3rd embodiment of the method for distortion correction provided in an embodiment of the present invention
Schematic diagram.The method of distortion correction described in the present embodiment, including step：
S301, a wide-angle photo is shot using the camera of terminal.
Wherein, terminal shoots a wide-angle photo using the camera of the terminal
As a kind of possible embodiment, terminal can using terminal camera shoot a wide-angle photo before,
Determine the pre- photo angle range of the camera of the terminal, user, can be according to wanting to take pictures when starting the camera of terminal
Scenery adjustment shooting angular range, the size that pre- photo angle range is exactly user according to region shared by scenery in scene
It is determined.Terminal can first obtain the touching instruction of the photo angle range of user's selection, and taking the photograph for terminal is determined according to the instruction
As the pre- photo angle range of head.For example, if the scenery range in scene is smaller, pre- photo angle range can be adjusted to general
The camera lens range of logical camera, in this case, the photo distortion very little taken pictures, it is believed that undistorted；If in scene
Scenery range it is larger, have been over the camera lens range of common camera, the image of pre- photo angle range may carry out
Distortion correction.
As a kind of possible embodiment, the camera of terminal can be front camera or the postposition camera shooting of terminal
Head；Alternatively, the camera of terminal can be terminal wirelessly or wired mode control camera.
S302, distorted region and non-distorted region in the wide-angle photo are determined.
Wherein, terminal can determine that the distorted region in wide-angle photo and non-distorted region, terminal can be arranged one in advance in advance
If threshold value, the region that will be greater than the pixel composition of the predetermined threshold value is determined as distorted region, will be less than or equal to the default threshold
The region of value is determined as non-distorted region, and further, the size of predetermined threshold value can be voluntarily arranged by user or system default.
It should be noted that under normal conditions, due to the characteristic of wide-angle camera itself, thus, the distortion of wide-angle camera is deposited always
, and wide-angle camera has symmetry characteristic under normal conditions, with the center of wide-angle camera to both sides, distortion factor
Present symmetrical, distortion factor occurred in the prior art, did not described excessively herein.Distortion factor indicates wide-angle
The distortion degree of the image of camera shooting, the distortion factor of wide-angle camera is bigger, illustrates that distortion is bigger, and wide-angle camera
Distortion factor in a certain range, i.e., distortion factor be less than a certain predetermined threshold value the case where, then it is believed that distortion factor be less than
The corresponding region of a certain predetermined threshold value is non-distorted region, and corresponding photo angle range may be defined as undistorted photo angle
Range.
S303, the distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is to be more than or wait
In 1 integer.
Wherein, distorted region can be divided into M sub-regions by terminal according to predetermined angle interval, wherein M be more than or
Integer equal to 1, during specific implementation, M is bigger, then the pattern distortion degree obtained after distortion calibration is smaller, between processing
The processing speed of device, it is proposed that predetermined angle is set to 0.1 degree or so and is divided to distorted region.
S304, distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction.Wherein, eventually
End can carry out distortion correction respectively to M sub-regions, to obtain the subregion after M correction, due to the distortion of every sub-regions
Degree is different, thus, the processing mode used to M region can be different.
As a kind of possible embodiment, terminal can determine the average distortion system of any subregion i in the M sub-regions
Number；And distortion correction is carried out to any subregion i according to the average distortion coefficient.For any subregion i, it may be determined that this is any
The distortion factor of each pixel, average distortion coefficient is sought so as to the distortion factor to each pixel in subregion i.Root
Distortion correction is carried out to any subregion i according to the average distortion coefficient.
S305, by described M correction after subregion and the non-distorted region splice.
S306, the stitching position of the image for splicing and obtaining is smoothed.
Wherein, the stitching position for the image that terminal can obtain splicing is smoothed, and the purpose of smoothing processing is
Remove the gap of splicing.
S307, the edge of the image after smoothing processing is subjected to cutting process, to obtain rectangle picture.
Wherein, the marginal position of the image obtained after splicing is likely to occur irregular appearance, and terminal will can smoothly be located
The edge of image after reason carries out cutting process, to obtain rectangle picture.
The embodiment of the present invention shoots a wide-angle photo using the camera of terminal；Determine the distortion in the wide-angle photo
Region and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M be more than
Or the integer equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；Determine institute
State the boundary line of the subregion and the non-distorted region after M correction；Son after correcting described M according to the boundary line
Region and the non-distorted region are spliced according to sequence corresponding with the wide-angle photo；By the image for splicing and obtaining
Stitching position be smoothed；The edge of image after smoothing processing is subjected to cutting process, to obtain rectangle picture.It adopts
Distorted region can be divided into M region with the embodiment of the present invention, then the M region is subjected to distortion correction respectively, incited somebody to action
M sub-regions after correction are spliced, to reduce the distortion degree of distorted region.
Fig. 4 a are please referred to, Fig. 4 a are a kind of structural schematic diagrams of the first embodiment of terminal provided in an embodiment of the present invention.
Terminal described in the present embodiment, including：
Shooting unit 401, for shooting a wide-angle photo using the camera of terminal.
Wherein, shooting unit 401 shoots a wide-angle photo using the camera of the terminal
As a kind of possible embodiment, shooting unit 401 can shoot a wide-angle in the camera using terminal and shine
Before piece, determination unit (not marked in figure) determines that the pre- photo angle range of the camera of the terminal, user are starting terminal
Camera when, can according to the angular range for the scenery adjustment shooting for wanting to take pictures, pre- photo angle range is exactly user according to
It is determined according to the size in region shared by scenery in scene.The touch that terminal can first obtain the photo angle range of user's selection refers to
It enables, the pre- photo angle range of the camera of terminal is determined according to the instruction.For example, if the scenery range in scene is smaller,
Then pre- photo angle range can be adjusted to the camera lens range of common camera, in this case, the photo distortion taken pictures
Very little, it is believed that undistorted；If the scenery range in scene is larger, the camera lens range of common camera is had been over, it is pre- to clap
The image of irradiation angle range may carry out distortion correction.
As a kind of possible embodiment, the camera of terminal can be front camera or the postposition camera shooting of terminal
Head；Alternatively, the camera of terminal can be terminal wirelessly or wired mode control camera.
Determination unit 402, for determining distorted region in wide-angle photo that the shooting unit 401 takes and non-abnormal
Become region.
Wherein it is determined that unit 402 can determine that distorted region and non-distorted region in wide-angle photo, terminal can be arranged in advance
One predetermined threshold value, the region that will be greater than the pixel composition of the predetermined threshold value are determined as distorted region, and will be less than or equal to should
The region of predetermined threshold value is determined as non-distorted region, and further, the size of predetermined threshold value can be voluntarily arranged by user or be
System acquiescence.It should be noted that under normal conditions, due to the characteristic of wide-angle camera itself, thus, the distortion of wide-angle camera
It always exists, and wide-angle camera has symmetry characteristic under normal conditions, it is abnormal with the center of wide-angle camera to both sides
Variable coefficient presentation is symmetrical, and distortion factor occurred in the prior art, did not described excessively herein.Distortion factor table
Show the distortion degree of the image of wide-angle camera shooting, the distortion factor of wide-angle camera is bigger, illustrates that distortion is bigger, and wide-angle
The distortion factor of camera in a certain range, i.e., distortion factor be less than a certain predetermined threshold value the case where, then it is believed that distortion system
It is non-distorted region that number, which is less than the corresponding region of a certain predetermined threshold value, and corresponding photo angle range may be defined as undistorted bat
Irradiation angle range.
Division unit 403, the distorted region for determining the determination unit 402 are divided into according to predetermined angle interval
For M sub-regions, wherein M is the integer more than or equal to 1.
Wherein, distorted region can be divided into M sub-regions by division unit 403 according to predetermined angle interval, wherein M
For the integer more than or equal to 1, during specific implementation, M is bigger, then the pattern distortion degree obtained after distortion calibration is smaller,
Between the processing speed of processor, it is proposed that predetermined angle is set to 0.1 degree or so and is divided to distorted region.
Unit 404 is corrected, the M sub-regions for being divided to the division unit 403 carry out distortion correction respectively, with
Subregion to after M correction.
Wherein, correction unit 404 can carry out distortion correction respectively to M sub-regions, to obtain the sub-district after M correction
Domain, since the distortion degree of every sub-regions is different, thus, the processing mode used to M region can be different.
Concatenation unit 405, for splicing the subregion after described corrected M correction of correction unit 404.
Wherein, subregion and non-distorted region after concatenation unit 405 can correct M splice.
As a kind of possible embodiment, as shown in Figure 4 b, the determination unit 402 of terminal described in Fig. 4 a can wrap
It includes：First determination unit 4021 and the second determination unit 4022, it is specific as follows：
First determination unit 4021, distortion factor is more than pre- in the wide-angle photo for shooting the shooting unit 401
If the region of threshold value is determined as distorted region.
Second determination unit 4022, in the wide-angle photo for shooting the shooting unit 401 distortion factor be less than or
Non- distorted region is determined equal to the region of predetermined threshold value.
As a kind of possible embodiment, as illustrated in fig. 4 c, the correction unit 404 of terminal described in Fig. 4 a can wrap
It includes：Third determination unit 4041 and correction subelement 4042：
Third determination unit 4041, for determine the division unit 403 divide M sub-regions in any subregion i
Average distortion coefficient；
Subelement 4042 is corrected, the average distortion coefficient for being determined according to the third determination unit 4041 is to described
One subregion i carries out distortion correction.
As a kind of possible embodiment, as shown in figure 4d, the concatenation unit 405 of terminal described in Fig. 4 a can wrap
It includes：4th determination unit 4051 and splicing subelement 4052：
4th determination unit 4051, for determining subregion and institute after M correction of correction unit 404 correction
State the boundary line of non-distorted region；
Splice subelement 4052, for splicing the boundary line determined according to the 4th determination unit 4051 by the M
Subregion and the non-distorted region after correction are spliced according to sequence corresponding with the wide-angle photo.
As a kind of possible embodiment, as shown in fig 4e, terminal described in Fig. 4 a may also include：Processing unit
406 and cutter unit 407：
The stitching position of processing unit 406, the image for splicing the concatenation unit is smoothed；
Cutter unit 407, for the edge of the image after smoothing processing to be carried out cutting process, to obtain rectangle picture.
Terminal described in the embodiment of the present invention shoots a wide-angle photo using the camera of terminal；Determine the wide-angle
Distorted region in photo and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval,
Wherein, M is the integer more than or equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the son after M correction
Region；Subregion and the non-distorted region after described M is corrected splice.It can will be distorted using the embodiment of the present invention
Region division becomes M region, then the M region is carried out distortion correction respectively, is spelled by the M sub-regions after correction
It connects, to reduce the distortion degree of distorted region.
Referring to Fig. 5, Fig. 5 is a kind of structural schematic diagram of the second embodiment of terminal provided in an embodiment of the present invention.This
Terminal described in embodiment includes：At least one input equipment 1000；At least one output equipment 2000；At least one place
Manage device 3000, such as CPU；With memory 4000, above-mentioned input equipment 1000, output equipment 2000, processor 3000 and storage
Device 4000 is connected by bus 5000.
Wherein, above-mentioned input equipment 1000 can be touch panel, common PC, liquid crystal display, touch screen, push button etc..
Above-mentioned memory 4000 can be high-speed RAM memory or non-labile memory (non-volatile
), such as magnetic disk storage memory.Above-mentioned memory 4000 is above-mentioned input equipment 1000, defeated for storing batch processing code
Go out equipment 2000 and processor 3000 for calling the program code stored in memory 4000, executes following operation：
Above-mentioned processor 3000, is used for：
A wide-angle photo is shot using the camera of terminal；
Determine the distorted region in the wide-angle photo and non-distorted region；
The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is more than or equal to 1
Integer；
Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；
Subregion and the non-distorted region after described M is corrected splice.
As a kind of possible embodiment, above-mentioned processor 3000 determines distorted region in the wide-angle photo and non-
Distorted region, specially：
The region that distortion factor in the wide-angle photo is more than to predetermined threshold value is determined as distorted region；
The region that distortion factor in the wide-angle photo is less than or equal to predetermined threshold value determines non-distorted region.
As a kind of possible embodiment, above-mentioned processor 3000 carries out distortion correction respectively to the M sub-regions,
To obtain the subregion after M correction, specially：
Determine the average distortion coefficient of any subregion i in the M sub-regions；
Distortion correction is carried out to any subregion i according to the average distortion coefficient.
As a kind of possible embodiment, above-mentioned processor 3000 is by the subregion and described non-after described M correction
Distorted region is spliced, specially：
Determine the boundary line of the subregion and the non-distorted region after the M correction；
The subregion after described M correction is shone with the non-distorted region according to the wide-angle according to the boundary line
The corresponding sequence of piece is spliced.
As a kind of possible embodiment, above-mentioned processor 3000 is by the subregion and described non-after described M correction
After distorted region is spliced, also particularly useful for：
The stitching position of the image for splicing and obtaining is smoothed；
The edge of image after smoothing processing is subjected to cutting process, to obtain rectangle picture.
The embodiment of the present invention shoots a wide-angle photo using the camera of terminal；Determine the distortion in the wide-angle photo
Region and non-distorted region；The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M be more than
Or the integer equal to 1；Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；By the M
Subregion and the non-distorted region after a correction are spliced.Distorted region can be divided into using the embodiment of the present invention
M region, then the M region is subjected to distortion correction respectively, splice by the M sub-regions after correction, it is abnormal to reduce
Become the distortion degree in region.
The embodiment of the present invention also provides a kind of computer storage media, wherein the computer storage media can be stored with journey
Sequence, the program include some or all of any one signal processing method described in above method embodiment step when executing
Suddenly.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It should be noted that for each method embodiment above-mentioned, for simple description, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the described action sequence because
According to the present invention, certain steps may can be performed in other orders or simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and module not necessarily this hair
Necessary to bright.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, for example, said units division, it is only a kind of
Division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical or other forms.
The above-mentioned unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, can also be
Each unit physically exists alone, can also be during two or more units are integrated in one unit.Above-mentioned integrated unit
Both the form that hardware may be used is realized, can also be realized in the form of SFU software functional unit.
If above-mentioned integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc., can be specifically the processor in computer equipment) is held
The all or part of step of each embodiment above method of the row present invention.Wherein, storage medium above-mentioned may include：USB flash disk, shifting
Dynamic hard disk, magnetic disc, CD, read-only memory (English：Read-Only Memory, abbreviation：) or random access memory ROM
(English：Random Access Memory, abbreviation：The various media that can store program code such as RAM).
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
Modification or replacement, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (13)
1. a kind of method of distortion correction, which is characterized in that including：
A wide-angle photo is shot using the camera of terminal；
Determine the distorted region in the wide-angle photo and non-distorted region；
The distorted region is divided into M sub-regions according to predetermined angle interval, wherein M is whole more than or equal to 1
Number；
Distortion correction is carried out respectively to the M sub-regions, to obtain the subregion after M correction；
Subregion and the non-distorted region after described M is corrected splice.
2. the method as described in claim 1, which is characterized in that distorted region in the determination wide-angle photo and non-abnormal
Become region, including：
The region that distortion factor in the wide-angle photo is more than to predetermined threshold value is determined as distorted region；
The region that distortion factor in the wide-angle photo is less than or equal to predetermined threshold value determines non-distorted region.
3. such as claims 1 or 2 any one of them method, which is characterized in that it is described the M sub-regions are carried out respectively it is abnormal
Become correction, to obtain the subregion after M correction, including：
Determine the average distortion coefficient of any subregion i in the M sub-regions；
Distortion correction is carried out to any subregion i according to the average distortion coefficient.
4. such as claims 1 or 2 any one of them method, which is characterized in that the subregion by after described M correction with
The non-distorted region is spliced, including：
Determine the boundary line of the subregion and the non-distorted region after the M correction；
According to the boundary line by subregion and the non-distorted region after described M correction according to the wide-angle photo pair
The sequence answered is spliced.
5. such as claims 1 or 2 any one of them method, which is characterized in that the subregion by after described M correction with
After the non-distorted region is spliced, the method further includes：
The stitching position of the image for splicing and obtaining is smoothed；
The edge of image after smoothing processing is subjected to cutting process, to obtain rectangle picture.
6. the method as described in claim 1, which is characterized in that shoot a wide-angle photo in the camera using terminal
Before, the method further includes：
User is obtained according to wanting that the scenery taken pictures adjusts the touching instruction of the photo angle range of selection, is determined eventually according to the instruction
The pre- photo angle range of the camera at end, and progress distortion correction is determined whether according to the pre- photo angle range.
7. a kind of terminal, which is characterized in that including：
Shooting unit, for shooting a wide-angle photo using the camera of terminal；
Determination unit, for determining distorted region and non-distorted region in wide-angle photo that the shooting unit takes；
Division unit, the distorted region for determining the determination unit are divided into M sub-district according to predetermined angle interval
Domain, wherein M is the integer more than or equal to 1；
Unit is corrected, the M sub-regions for being divided to the division unit carry out distortion correction respectively, to obtain M correction
Subregion afterwards；
Concatenation unit, for splicing the subregion after the corrected M correction of the correction unit.
8. terminal as claimed in claim 7, which is characterized in that the determination unit includes：
First determination unit, distortion factor is more than the region of predetermined threshold value in the wide-angle photo for shooting the shooting unit
It is determined as distorted region；
Second determination unit, distortion factor is less than or equal to predetermined threshold value in the wide-angle photo for shooting the shooting unit
Region determine non-distorted region.
9. such as claim 7 or 8 any one of them terminals, which is characterized in that the correction unit includes：
Third determination unit, the average distortion system for determining any subregion i in M sub-regions that the division unit divides
Number；
Correct subelement, the average distortion coefficient for being determined according to the third determination unit to any subregion i into
Line distortion corrects.
10. such as claim 7 or 8 any one of them terminals, which is characterized in that the concatenation unit includes：
4th determination unit, for determining subregion and the non-distortion area after M correction of the correction unit correction
The boundary line in domain；
Splice subelement, for splicing the boundary line determined according to the 4th determination unit by the sub-district after described M correction
Domain and the non-distorted region are spliced according to sequence corresponding with the wide-angle photo.
11. such as claim 7 or 8 any one of them terminals, which is characterized in that the terminal further includes：
The stitching position of processing unit, the image for splicing the concatenation unit is smoothed；
Cutter unit, for the edge of the image after smoothing processing to be carried out cutting process, to obtain rectangle picture.
12. such as claim 7 or 8 any one of them terminals, which is characterized in that the determination unit be additionally operable to obtain user according to
The touching instruction that the photo angle range of selection is adjusted according to the scenery for wanting to take pictures, the pre- of the camera of terminal is determined according to the instruction
Photo angle range, and progress distortion correction is determined whether according to the pre- photo angle range.
13. a kind of computer readable storage medium, which is characterized in that have program stored therein finger in the computer readable storage medium
It enables, described program instructs the method for executing distortion correction as claimed in any one of claims 1 to 6 after being called for computer.
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| CN105141826A (en) | 2015-12-09 |
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