CN106303202A - A kind of image information processing method and device - Google Patents
A kind of image information processing method and device Download PDFInfo
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- CN106303202A CN106303202A CN201510312769.1A CN201510312769A CN106303202A CN 106303202 A CN106303202 A CN 106303202A CN 201510312769 A CN201510312769 A CN 201510312769A CN 106303202 A CN106303202 A CN 106303202A
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Abstract
The invention discloses a kind of image information processing method and device, the method includes: the first focal distance based on image acquisition units shoots the first image；The second focal distance based on described image acquisition units shoots the second image, and wherein, described first focal distance is more than described second focal distance；From described first image, obtain first object image, and in described second image, choose second target image corresponding with described first object image；Replace described second target image in described second image with described first object image, form the 3rd image.Method and apparatus disclosed by the invention solves shallow depth of field photo in prior art needs long-focus, large aperture to realize, the most awkward problem on modern smart machine.
Description
Technical field
The present invention relates to electronic information technical field, particularly relate to a kind of image information processing method and device.
Background technology
Camera architecture the earliest is very simple, only includes camera bellows, camera lens and sensitive material.Modern camera
More complicated, have camera lens, aperture, shutter, find range, find a view, light-metering, film trasport, count, auto heterodyne etc.
System, is the complex product of the technology such as a kind of combination optics, precision optical machinery, electronic technology and chemistry.
Wherein, the implication of the shallow depth of field makes image definition in focusing, in having a segment distance before and after focus exactly
Region, it is possible to clearly manifesting, and this segment limit is referred to as the depth of field, the depth of field is the longest, then can clearly in
Existing scope is the biggest；Otherwise, the depth of field is the least, then prospect or background can thicken, and fuzzy being because focuses on
Loose formed a kind of obscuring phenomenon.From the point of view of optical theory, under the focal length of camera lens, it is possible to clear in
The only plane in an object distance of picture, the scenery outside this face all can obscure.
The shallow depth of field due to can highlight shot subject present simultaneously people want irrealizable fantasy virtualization
Effect is liked by shutterbugs, but owing to traditional shallow depth of field photo needs long-focus, large aperture
Realizing, extremely difficult use on modern smart machine, additionally there is algorithm restriction in the simulated implementation of software,
After the image that obtains may result in the problems such as distortion.
Summary of the invention
The present invention provides a kind of image information processing method and device, method and apparatus solution provided by the present invention
Certainly in prior art, shallow depth of field photo needs long-focus, large aperture to realize, extremely difficult on modern smart machine
The problem used.
The present invention provides a kind of image information processing method, and the method includes:
The first focal distance based on image acquisition units shoots the first image；
The second focal distance based on described image acquisition units shoots the second image, wherein, described first right
Defocus distance is more than described second focal distance；
From described first image, obtain first object image, and choose in described second image and described the
The second target image that one target image is corresponding；
Replace described second target image in described second image with described first object image, form the 3rd
Image.
Optionally, described the first focal distance based on image acquisition units shoots the first image and includes:
Obtain the normal focal distance of described image acquisition units；
Described normal focal distance is obtained described first image as described first diagonal distance shooting, described
The definition of the first image is more than predetermined threshold value.
Optionally, described the second focal distance based on described image acquisition units shoots the second image and includes:
Determine the minimum focal distance of described image acquisition units；
Using described minimum focal distance as described second diagonal distance, and with described image acquisition units
Large aperture shooting obtains described second image.
Optionally, from described first image, obtain first object image, and choose in described second image
Second target image corresponding with described first object image includes:
Described first image is carried out Identification of Images, obtains first object image；
Described second image is carried out Identification of Images, and target image Identification of Images obtained and described first
Target image mates, and determines the second target image according to matching result from described target image.
Optionally, from described first image, obtain first object image, and choose in described second image
Second target image corresponding with described first object image includes:
Determine focus during described image acquisition units described first image of shooting, and centered by described focus
Obtain the image of set point as first object image；
Described first object image is mated with described second image, according to matching result from described target
Image determines the second target image.
Optionally, from described first image, obtain first object image, and choose in described second image
Second target image corresponding with described first object image includes:
The first image receiving user's input chooses information, chooses information from described the according to described first image
One image obtains first object image；
The second image receiving user's input chooses information, chooses information from described the according to described second image
Two images obtain the second target image.
The present invention also provides for a kind of image information processing device, and this device includes:
First image acquisition unit, shoots the first figure for the first focal distance based on image acquisition units
Picture；
Second image acquisition unit, for the second focal distance shooting second based on described image acquisition units
Image, wherein, described first focal distance is more than described second focal distance；
Scratch figure unit, for obtaining first object image from described first image, and at described second image
In choose second target image corresponding with described first object image；
Synthesis unit, for replacing described second target in described second image with described first object image
Image, forms the 3rd image.
Optionally, described first image acquisition unit is specifically for obtaining the most right of described image acquisition units
Defocus distance；Described normal focal distance is obtained described first image as described first diagonal distance shooting,
The definition of described first image is more than predetermined threshold value.
Optionally, described second image acquisition unit is right specifically for the minimum determining described image acquisition units
Defocus distance；Using described minimum focal distance as described second diagonal distance, and with described image acquisition units
Maximum ring shooting obtain described second image.
Optionally, described stingy figure unit, specifically for described first image is carried out Identification of Images, obtains first
Target image；Described second image is carried out Identification of Images, and target image that Identification of Images is obtained and institute
State first object image to mate, from described target image, determine the second target figure according to matching result
Picture.
Optionally, described stingy figure unit is specifically for determining that described image acquisition units shoots described first image
Time focus, and centered by described focus, obtain the image of set point as first object image；By institute
State first object image to mate with described second image, according to matching result from described target image really
Fixed second target image.
Optionally, described stingy figure unit chooses information specifically for the first image receiving user's input, according to
Described first image is chosen information and is obtained first object image from described first image；Receive user's input
Second image chooses information, chooses information according to described second image and obtains the second mesh from described second image
Logo image.
One or two in technique scheme, at least has the following technical effect that
The method and apparatus that the embodiment of the present invention is provided, can present different one-tenth based on different focus distance
As effect, image acquisition units utilizes different focal distances to obtain the first image for same target and the
Two images, wherein the first image presents imaging effect the most clearly, and the second image is then to present virtualization
Imaging effect.First image and the second image will be carried out for the same picture material being taken individuality mutually
Change, be then fused into an image and then can generate a shallow depth map needing to be presented by complex device
Picture.So the scheme that the embodiment of the present invention is provided is solved in prior art to be shot by easy mode
One shallow depth image realizes the problem that difficulty is big.
Accompanying drawing explanation
The schematic flow sheet of a kind of image information processing method that Fig. 1 provides for the embodiment of the present invention；
The structural representation of a kind of image information processing device that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention provides a kind of image information processing method, and the method includes: based on image acquisition list
First focal distance of unit shoots the first image；The second focal distance shooting based on described image acquisition units
Second image, wherein, described first focal distance is more than described second focal distance；From described first image
Middle acquisition first object image, and in described second image, choose corresponding with described first object image
Two target images；Described second target image in described second image is replaced with described first object image,
Form the 3rd image.
In the method that the embodiment of the present invention provides, use two different focal distances for Same Scene or
Two images of shooting are merged, because one by object two different images of shooting the most again
Determine focal distance hypograph and there will be the effect of virtualization, so by by the figure of two different focus distances
After merging, it is possible to obtain the shallow depth of field of a part of image clear another part image virtualization
Image.Scheme provided by the present invention obtains shallow depth image by adjusting the General Parameters of existing equipment,
It is not required to long-focus and the large aperture of complexity, it is achieved convenient.Decrease the volume of image acquisition units
And weight.
As it is shown in figure 1, the embodiment of the present invention provides a kind of image information processing method, below in conjunction with description
The detailed description of the invention of the present invention is described in detail by accompanying drawing:
Step 101, the first focal distance based on image acquisition units shoots the first image；
In embodiments of the present invention, focal distance refers to the distance between image, is the camera lens distance to object
Distance sum with camera lens to photo-sensitive cell.
Because the method needing have taken two images and two images to present different imaging effects,
In this embodiment, the first image is an image clearly presenting subject, so should actual
A value equal to nearest focal distance should be greater than by the first focal distance in environment.
Wherein, nearest focal distance refers to that image acquisition units can be to the beeline of subject focus.
If it is to say, subject is shorter than nearest focal distance to the distance of image acquisition units imaging surface, figure
As collecting unit is to complete focusing, will be by the most empty less than the subject of nearest focal distance
Change.
In this embodiment, for the first image of shooting clear, the first focusing based on image acquisition units
Distance implementing of the first image of shooting may is that
Obtain the normal focal distance of described image acquisition units；
Described normal focal distance is obtained described first image as described first diagonal distance shooting, described
The definition of the first image is more than predetermined threshold value.
In embodiments of the present invention, one picture rich in detail institute of this normal focal distance i.e. image acquisition units shooting
The focal distance used.This normal focusing defection is according to the difference district of electronic equipment and user setup
Not, even if same equipment this normal focal distance when shooting the subject of diverse location also differs
's.
Step 102, the second focal distance based on described image acquisition units shoots the second image, wherein,
Described first focal distance is more than described second focal distance；
In order to obtain the virtualization image in shallow depth image, so in this embodiment, the second focal distance can
To be less than a value of nearest focal distance.In concrete applied environment, based on described image acquisition units
The second focal distance shoot the second image and implement and may is that
Determine the minimum focal distance of described image acquisition units；Using described minimum focal distance as described the
Two diagonal distance, and obtain described second image with the maximum ring shooting of described image acquisition units.
In order to obtain the shallow depth image for same target, the figure when obtaining the first image and the second image
Subject as corresponding to collecting unit is same.Simply the diagonal distance when obtaining image occurs
Change.
Step 103, obtains first object image from described first image, and selects in described second image
In second target image corresponding with described first object image；
Because the imaging effect obtained by shallow depth image is, the clear a part of image of a part of image blurs,
So according to this imaging effect, in the scheme that the embodiment of the present invention is provided, can be at the first image clearly
In choose an object as first object image, then determine in the second image and first object image pair
The part answered.By part corresponding for two images being exchanged the one-tenth that then can distinguish the virtualization of clear part with presentation portion
As effect.
Step 104, replaces described second target image in described second image with described first object image,
Form the 3rd image.
In embodiments of the present invention, can present different imaging effects based on different focus distance, image is adopted
Collection unit utilizes different focal distances to obtain the first image for same target and the second image, Qi Zhong
One image presents imaging effect the most clearly, and the second image is then the imaging effect presenting virtualization.Will
First image and the second image are interchangeable for the same picture material being taken individuality, are then fused into
One image then can generate a shallow depth image needing to be presented by complex device.So the present invention is real
The scheme that executing example is provided is solved by easy mode and to shoot a shallow depth image in prior art
Realize the problem that difficulty is big.
In inventive embodiments, in order to the first image and the second image are merged, and according to the need of user
Ask to provide and meet the shallow depth image of user's request (foreground image in the shallow depth image i.e. finally obtained can
It is adjusted with the demand according to user), from described first image, obtain first object image, and in institute
State the mode choosing second target image corresponding with described first object image to implement in the second image
May is that
One, realize personage when shoot, then can determine from the first image by the way of Identification of Images
First object image；Implement and may is that
Described first image is carried out Identification of Images, obtains first object image；
Described second image is carried out Identification of Images, and target image Identification of Images obtained and described first
Target image mates, and determines the second target image according to matching result from described target image.
Such as: user needs to shoot the shallow depth image that Zhang one personage is prospect, then image acquisition units
Focal distance one character image (the i.e. first image) of shooting of shooting normal picture can be utilized, the most again
Adjust diagonal distance, utilize the diagonal distance shooting one after adjusting consistent with the reference object of the first image
Second image, this second image is the image of a virtualization.Utilize the image-recognizing method can be from the first image
Middle extraction character image (i.e. first object image), the most just can utilize character image and the second image
Merge.The concrete mode merged may is that the portion corresponding with first object image that determine from the second image
Point, then by the corresponding part determined and first object image exchange；Or, extracting first object image
When the most further determine the first object image relative position in the first image, first object image
The when of with the second image co-registration, then first object image can be utilized to cover the second figure according to this relative position
Corresponding part in Xiang.
Two, because user is when shooting a certain object, generally Jiao of image acquisition units
Object corresponding to Dian is then main reference object, then can be image corresponding for focus in shallow depth image
As the foreground image of shallow depth image, may is that in this way
Determine focus during described image acquisition units described first image of shooting, and centered by described focus
Obtain the image of set point as the first object image (foreground picture of the shallow depth image i.e. eventually formed
Picture)；
Described first object image is mated with described second image, according to matching result from described target
Image determines the second target image.
Three, being additionally based on the consideration of user's composition, user may want to highlight a certain reference object,
So in the case of image acquisition units can receive user's input information (such as: show mould with touch-control
The image acquisition units of block, then can receive the selection information of user's input by touch control display module), root
Determine first object image according to the input information of user, implement and may is that
The first image receiving user's input chooses information, chooses information from described the according to described first image
One image obtains first object image；
The second image receiving user's input chooses information, chooses information from described the according to described second image
Two images obtain the second target image.
Such as: in the first image, subject includes that multiple individuality that is taken is (such as: the first image is
The scene in one park of shooting, potentially includes the child played in this scene, toy, stroll old
People etc.), if user needs to present a shallow depth image with child as prospect, then can be at figure
The information input mode provided by image acquisition units in the first image as shown by collecting unit, defeated
Enter selection information, from the first image, select child's corresponding image region (i.e. first object image),
Then image acquisition units then can obtain the first mesh according to the selection information of user's input from the first image
Logo image；The acquisition mode of the second target image can be being identical with the acquisition mode of first object image.
As in figure 2 it is shown, the embodiment of the present invention also provides for a kind of image information processing device, this device specifically wraps
Include:
First image acquisition unit 201, for the first focal distance shooting first based on image acquisition units
Image；
In this embodiment, described first image acquisition unit 201 is specifically for obtaining described image acquisition list
The normal focal distance of unit；Described normal focal distance is obtained described as described first diagonal distance shooting
First image, the definition of described first image is more than predetermined threshold value.
Second image acquisition unit 202, for the second focal distance shooting based on described image acquisition units
Second image, wherein, described first focal distance is more than described second focal distance；
Wherein, described second image acquisition unit 202 is specifically for determining the minimum of described image acquisition units
Focal distance；Using described minimum focal distance as described second diagonal distance, and with described image acquisition list
The maximum ring shooting of unit obtains described second image.
Scratch figure unit 203, for obtaining first object image from described first image, and described second
Image is chosen second target image corresponding with described first object image；
Synthesis unit 204, for replacing described second in described second image with described first object image
Target image, forms the 3rd image.
In inventive embodiments, in order to the first image and the second image are merged, and according to the need of user
Ask to provide and meet the shallow depth image of user's request (foreground image in the shallow depth image i.e. finally obtained can
It is adjusted with the demand according to user), then scratch figure unit 203 in the first image, obtain first object figure
Picture, and choose second target image corresponding with described first object image specifically real in described second image
Existing mode may is that
One, realize personage when shoot, then can determine from the first image by the way of Identification of Images
First object image；Implement and may is that
This stingy figure unit 203, specifically for described first image is carried out Identification of Images, obtains first object figure
Picture；Described second image is carried out Identification of Images, and target image Identification of Images obtained and described first
Target image mates, and determines the second target image according to matching result from described target image.
Two, because user is when shooting a certain object, generally Jiao of image acquisition units
Object corresponding to Dian is then main reference object, then can be image corresponding for focus in shallow depth image
As the foreground image of shallow depth image, implement and may is that
Scratch figure unit 203 specifically for determining Jiao during described image acquisition units described first image of shooting
Point, and centered by described focus, obtain the image of set point as first object image；By described first
Target image mates with described second image, determines second according to matching result from described target image
Target image.
Three, being additionally based on the consideration of user's composition, user may want to highlight a certain reference object,
So in the case of image acquisition units can receive user's input information (such as: show mould with touch-control
The image acquisition units of block, then can receive the selection information of user's input by touch control display module), root
Determine first object image according to the input information of user, implement and may is that
Scratch figure unit 203 and choose information, according to described first specifically for the first image receiving user's input
Image is chosen information and is obtained first object image from described first image；Receive the second image of user's input
Choose information, choose information according to described second image and obtain the second target image from described second image.
Said one in the embodiment of the present application or multiple technical scheme, at least have the following technical effect that:
In embodiments of the present invention, can present different imaging effects based on different focus distance, image is adopted
Collection unit utilizes different focal distances to obtain the first image for same target and the second image, Qi Zhong
One image presents imaging effect the most clearly, and the second image is then the imaging effect presenting virtualization.Will
First image and the second image are interchangeable for the same picture material being taken individuality, are then fused into
One image then can generate a shallow depth image needing to be presented by complex device.So the present invention is real
The scheme that executing example is provided is solved by easy mode and to shoot a shallow depth image in prior art
Realize the problem that difficulty is big.
Method of the present invention is not limited to the embodiment described in detailed description of the invention, art technology
Personnel draw other embodiment according to technical scheme, also belong to the technology wound of the present invention
New range.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
The spirit and scope of invention.So, if these amendments of the present invention and modification belong to right of the present invention and want
Ask and within the scope of equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. an image information processing method, it is characterised in that the method includes:
The first focal distance based on image acquisition units shoots the first image；
The second focal distance based on described image acquisition units shoots the second image, wherein, described first right
Defocus distance is more than described second focal distance；
From described first image, obtain first object image, and choose in described second image and described the
The second target image that one target image is corresponding；
Replace described second target image in described second image with described first object image, form the 3rd
Image.
2. the method for claim 1, it is characterised in that described based on image acquisition units
One focal distance shoots the first image and includes:
Obtain the normal focal distance of described image acquisition units；
Described normal focal distance is obtained described first image as described first diagonal distance shooting, described
The definition of the first image is more than predetermined threshold value.
3. method as claimed in claim 1 or 2, it is characterised in that described based on described image acquisition
Second focal distance of unit shoots the second image and includes:
Determine the minimum focal distance of described image acquisition units；
Using described minimum focal distance as described second diagonal distance, and with described image acquisition units
Large aperture shooting obtains described second image.
4. method as claimed in claim 1 or 2, it is characterised in that obtain from described first image
First object image, and in described second image, choose second target corresponding with described first object image
Image includes:
Described first image is carried out Identification of Images, obtains first object image；
Described second image is carried out Identification of Images, and target image Identification of Images obtained and described first
Target image mates, and determines the second target image according to matching result from described target image.
5. method as claimed in claim 1 or 2, it is characterised in that obtain from described first image
First object image, and in described second image, choose second target corresponding with described first object image
Image includes:
Determine focus during described image acquisition units described first image of shooting, and centered by described focus
Obtain the image of set point as first object image；
Described first object image is mated with described second image, according to matching result from described target
Image determines the second target image.
6. method as claimed in claim 1 or 2, it is characterised in that obtain from described first image
First object image, and in described second image, choose second target corresponding with described first object image
Image includes:
The first image receiving user's input chooses information, chooses information from described the according to described first image
One image obtains first object image；
The second image receiving user's input chooses information, chooses information from described the according to described second image
Two images obtain the second target image.
7. an image information processing device, it is characterised in that this device includes:
First image acquisition unit, shoots the first figure for the first focal distance based on image acquisition units
Picture；
Second image acquisition unit, for the second focal distance shooting second based on described image acquisition units
Image, wherein, described first focal distance is more than described second focal distance；
Scratch figure unit, for obtaining first object image from described first image, and at described second image
In choose second target image corresponding with described first object image；
Synthesis unit, for replacing described second target in described second image with described first object image
Image, forms the 3rd image.
8. device as claimed in claim 7, it is characterised in that described first image acquisition unit is concrete
For obtaining the normal focal distance of described image acquisition units；Using described normal focal distance as described
Pair of horns distance shooting obtains described first image, and the definition of described first image is more than predetermined threshold value.
9. device as claimed in claim 7 or 8, it is characterised in that described second image acquisition unit
Specifically for determining the minimum focal distance of described image acquisition units；Using described minimum focal distance as institute
State the second diagonal distance, and obtain described second image with the maximum ring shooting of described image acquisition units.
10. as claimed in claim 7 or 8 device, it is characterised in that described stingy figure unit specifically for
Described first image is carried out Identification of Images, obtains first object image；Described second image is carried out portrait
Identify, and target image Identification of Images obtained mates, according to coupling with described first object image
Result determines the second target image from described target image.
11. devices as claimed in claim 7 or 8, it is characterised in that described stingy figure unit specifically for
Determine focus during described image acquisition units described first image of shooting, and obtain centered by described focus
The image of set point is as first object image；Described first object image is carried out with described second image
Coupling, determines the second target image according to matching result from described target image.
12. devices as claimed in claim 7 or 8, it is characterised in that described stingy figure unit specifically for
The first image receiving user's input chooses information, chooses information from described first figure according to described first image
First object image is obtained in Xiang；The second image receiving user's input chooses information, according to described second figure
From described second image, the second target image is obtained as choosing information.
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| CN113873160B (en) * | 2021-09-30 | 2024-03-05 | 维沃移动通信有限公司 | Image processing method, device, electronic equipment and computer storage medium |
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