CN108111754A - A kind of method and mobile terminal of definite image acquisition modality - Google Patents
A kind of method and mobile terminal of definite image acquisition modality Download PDFInfo
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/164—Detection; Localisation; Normalisation using holistic features
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
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Abstract
The invention discloses a kind of method and mobile terminal of definite image acquisition modality, the described method includes：The characteristics of human body in the preview image of camera acquisition is obtained, the characteristics of human body includes face area and/or features of skin colors information；In the case where the characteristics of human body meets the unlocking condition of default target screening-mode, by current shooting pattern switching to the target screening-mode.The solution of the present invention can be after user opens image collecting function, characteristics of human body in the image collected, control switches to target screening-mode, with solves the problems, such as currently to need caused by manual switching screening-mode it is complicated for operation, easily miss and shoot the best opportunity, more difficult take customer satisfaction system image.
Description
Technical field
The present embodiments relate to the methods and movement of field of communication technology more particularly to a kind of definite image acquisition modality
Terminal.
Background technology
With the development of mobile terminal, Image Acquisition has become very important function, and user can be at any time at one's side
People or thing recorded, and with the rapid advances of mobile terminal hardware and software, to the image collecting function of mobile terminal
More professionally refine.Such as can by a variety of screening-modes such as personage, portrait, landscape, microspur, continuous shooting, so as to
It is adapted to different photographed scenes.
Currently after terminal opens image collecting function, a screening-mode can be opened simultaneously, for example, can open simultaneously
Landscape configuration.However, when at this time if desired user is switched to other screening-modes to meet current photographed scene, it is necessary into
Row manual switching, it is not only complicated for operation, and easily miss best opportunity of shooting, so as to cause be difficult take it is customer satisfaction system
Image.
The content of the invention
The embodiment of the present invention provides a kind of screening-mode control method and mobile terminal, to solve currently to need manual switching
It is complicated for operation caused by screening-mode, easy to miss shooting best opportunity, more difficult the problem of taking customer satisfaction system image.
In order to solve the above-mentioned technical problem, the present invention is realized in：
In a first aspect, a kind of screening-mode control method is provided, including：
The characteristics of human body in the preview image of camera acquisition is obtained, the characteristics of human body includes face area and/or skin
Color characteristic information；
In the case where the characteristics of human body meets the unlocking condition of default target screening-mode, by current shooting pattern
Switch to the target screening-mode.
Second aspect provides a kind of mobile terminal, including：Characteristics of human body's acquisition module and screening-mode switching mould
Block, wherein,
Characteristics of human body's acquisition module, for obtaining the characteristics of human body in the preview image of camera acquisition, the people
Body characteristics include face area and/or features of skin colors information；
The screening-mode handover module, for meeting the open strip of default target screening-mode in the characteristics of human body
In the case of part, by current shooting pattern switching to the target screening-mode.
The third aspect provides a kind of terminal device, which includes processor, memory and be stored in described deposit
On reservoir and the computer program that can run on the processor, the computer program are realized when being performed by the processor
The step of method as described in relation to the first aspect.
Fourth aspect provides a kind of computer readable storage medium, which is characterized in that the computer-readable storage medium
Computer program is stored in matter, the step of method as described in relation to the first aspect is realized when the computer program is executed by processor
Suddenly.
In embodiments of the present invention, characteristics of human body's acquisition is carried out to the preview image of camera acquisition, characteristics of human body can be with
It is face area and/or features of skin colors information, in the case where characteristics of human body meets default target screening-mode unlocking condition,
By current shooting pattern switching to target screening-mode.I.e. user open Image Acquisition after, by the image collected into
Pedestrian's face product and/or features of skin colors information identify to determine to solve current shooting pattern switching to target screening-mode
It is current need caused by manual switching screening-mode it is complicated for operation, easily miss the shooting best opportunity, more difficult take user's satisfaction
Image the problem of, the present invention without user manual operation target screening-mode can be switched to by mobile terminal self, simplify
Operation, and the possibility for capturing the Image Acquisition best opportunity is improved, so as to being easier to collect customer satisfaction system image.
Description of the drawings
Fig. 1 is the flow diagram of definite image acquisition modality method provided by the invention；
Fig. 2 is the interface schematic diagram of mobile terminal provided by the invention；
Fig. 3 is the interface schematic diagram of mobile terminal provided by the invention；
Fig. 4 is the structure chart of mobile terminal provided by the invention；
Fig. 5 is a kind of hardware architecture diagram of mobile terminal provided by the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, belongs to the scope of protection of the invention.
The present embodiment provides a kind of screening-mode control method, for after user opens image collecting function, according to adopting
Characteristics of human body in the image collected, control switch to target screening-mode, to solve currently to need manual switching screening-mode
Caused complicated for operation, easy miss shoots best opportunity, more difficult the problem of taking customer satisfaction system image.The method is held
Row main body can be mobile terminal, and shown in Figure 1, this method includes：
Step 101：Obtain the characteristics of human body in the preview image of camera acquisition.
Mobile terminal in the present embodiment can be equipped with the mobile terminal of camera, when user's control mobile terminal is opened
After opening image collecting function (for example camera function can be opened by application), it can start to gather image by camera.When
It after mobile terminal collects image, can be usually shown in screen, to prompt user's the image collected, this side
Formula is properly termed as preview image, i.e., preview the image collected in screen.If user is satisfied to the effect of preview image,
Then it can take pictures or be recorded by shutter key, and preserve in a memory in the mobile terminal.But if active user is to preview
Image is unsatisfied with, and a kind of mode then needs manual switching screening-mode, and the present embodiment can be according to the people in the image collected
Body characteristics, control switch to target screening-mode, and it is mainly characteristics of human body in preview image to control the foundation of screening-mode,
So the characteristics of human body in preview image can be obtained, specifically, characteristics of human body can include face area and/or features of skin colors
Information.
Separately below to characteristics of human body individually include face area or individually including features of skin colors information different situations into
Row is introduced.
On the one hand, when characteristics of human body's behaviour face accumulates, the characteristics of human body in the preview image of camera acquisition is obtained, it can
To include：Obtain the face area in the preview image of camera acquisition.Specifically, recognition of face can refer to the face based on people
Portion's feature carries out a kind of biological identification technology of identification.It can be gathered by image capture devices such as cameras comprising face
Image or video, and automatic detect and track face in the picture.This step can be to the preview image that collects into pedestrian
Face identifies, so as to obtain face recognition result, for example can be to determine out coordinate of the facial image correspondence in preview image.It is right
In preview image, a coordinate system can be set, which can include x-axis, the two-dimensional coordinate system of y-axis, can basis
The resolution ratio of screen determines the minimum value and maximum of x, y, and each coordinate points can correspond to a pixel, carry out face
After identification, it is possible to according to position of the facial image identified in preview image, exist so that it is determined that going out facial image correspondence
Coordinate (abbreviation face coordinate) in preview image.Accordingly, according to face coordinate facial image can be determined in preview image
In area.Specific implementation can determine the number for all pixels point that face includes according to face coordinate, can be pre-
Each pixel is first defined as a unit area, the area of face is determined according to face coordinate.
On the other hand, when characteristics of human body is features of skin colors information, the human body in the preview image of camera acquisition is obtained
Feature can include：
Sub-step 1011：Preview image is divided into the block of predetermined number；
Sub-step 1013：Based on the color parameter of each block, the colour of skin block in preview image is determined；
Sub-step 1015：The number of colour of skin block and/or colour of skin block are determined in the area of predetermined number accounting in the block
For features of skin colors information.
Specifically, user can gather the image for including portrait by camera, can generally also be included in this image
The part of skin.Skin color model can refer to determine the part for being similar to human skin color in image, in actual figure
As in gatherer process, the image that the preview image collected usually can be saved as first to RAW forms in advance (contains original picture file
Sensor generation after, into camera images processor before all photographic intelligences).It can be incited somebody to action in sub-step 1011 pre-
Image of looking at is divided, and is divided into the block of predetermined number, for example can be divided into the preview image of RAW forms and be divided into m × n
A block (block) can be divided into 64 × 48=3072 block with the preview image of RAW forms in practice, can also incite somebody to action pre-
Image of looking at is divided into the different block of several sizes, for example user is in portrait session is gathered, it will usually be moved by adjusting
The position of terminal or angle are made one as the more intermediate position in preview image, it is possible to preview image by edge
It is the gradually smaller block of size according to default model split so that the block closer to preview image edge to center
Size is bigger, and the block sizes closer to preview image center are smaller.
Hereafter, sub-step 1013 can determine the color parameter in each block, and the ginseng of the color based on each block
Colour of skin block in the definite preview image of number.Specifically, color parameter can be preset, for example can be in block
The ratio of the value of one or more Color Channels or the value of two kinds of Color Channels.In one embodiment, sub-step 1013
It can include：The first color ratio and the second color ratio based on each block, determine colour of skin block.Wherein, the first color
Ratio can be the ratio of red channel color value and green channel color value in each block, and the second color ratio can be
The ratio of blue channel color value and green channel color value in each block.
Further, rgb color pattern is a kind of color standard, can be by red (R), green (G), blue (B)
The variation and mutual superposition of three Color Channels obtains miscellaneous color, and RGB can represent red, green, blue
The color of three passages.So red channel color value can in block pixel R values, green channel color value can
With the G values of pixel in block, blue channel color value can in block pixel B values.In practical applications, it is red
Passage color value can be calculated the average R values of whole pixels in block or calculate in block more than R thresholds
The average R values of the pixel of value.For example, in a block, there can be 100 pixels, each pixel can be deposited
In a R value, this step can calculate the average R values of 100 pixels, and it is 50 that can also preset R threshold values, chooses n (n
≤ 100) pixel of a R values ＞ 50 calculates the average R values of this n pixel.Similarly, the blue channel face in each block
Color value and green channel color value can also mode similar to the above be determined, determine it is B values and G values respectively.Then above
The first color ratio can be the R/G values in single block, and the second color ratio can be single block
In B/G values, accordingly, the R/G values of single block and B/G values can be determined as to the color parameter of block.
Different color parameters can characterize different images, and in practice, and the block with particular color parameter can be with
Symbolize the degree for being similar to human skin color, it is possible to pre-set color condition, to filter out colour of skin block.Specifically,
B/G range thresholds and/or R/G range thresholds can be pre-set as pre-set color condition, when in the block determined
B/G values are in B/G range thresholds and/or when R/G values are in R/G range thresholds, then can the block be determined as the colour of skin
block.After color parameter is determined to each block, judge whether after meeting pre-set color condition, it is possible to determine
The number of colour of skin block, and determine therefrom that as features of skin colors information, it can also be by the number of colour of skin block in predetermined number
Accounting in block is determined as features of skin colors information.Such as in 3072 block, the number of colour of skin block can have 1500
It is a, and accountings of the colour of skin block in 3072 block can be then 48.83%, then can by 1500 colour of skin block and/
Or 48.83% colour of skin block accountings are determined as features of skin colors information.The first color ratio and the second face based on each block
Color ratio value determines the mode of colour of skin block, and the color that image itself can be utilized to possess relatively accurately determines the colour of skin
Block, so as to relatively accurately determine features of skin colors information.
And in practical applications, it is contemplated that image attributes information during acquisition different images, such as colour temperature etc. are not quite similar,
Color parameter so as to cause colour of skin block in image is also different, so in one embodiment, in order to more accurately
Determine colour of skin block, the first color ratio and the second color ratio based on block, before determining colour of skin block, this method is also
It can include：Obtain the image attributes information of preview image；According to image attributes information, the first threshold of the first color ratio is determined
The 3rd threshold value and the 4th threshold value of value and second threshold and the second color ratio.
Further, image attributes information can include colour temperature and/or brightness, during image is gathered, due to
The difference of environment or photo-sensitive cell may result in the image collected and have different colour temperatures and brightness, so as to cause the colour of skin
The B/G values and R/G values of block can be varied from, and here, the first threshold and second threshold can serve to indicate that in colour of skin block
The value range of first color ratio, and the 3rd threshold value and the 4th threshold value can serve to indicate that the second color ratio in colour of skin block
The value range of value, i.e., for colour of skin block, the change of the first color ratio (R/G values) and the second color ratio (B/G values)
Change scope, can be influenced be subject in different image attributes information, it is possible to pre-establish the images category such as colour temperature and/or brightness
Property information and B/G values and R/G value excursions correspondence, for example, can have first threshold (skin_R/G_min) and the
Two threshold values (skin_R/G_max) and the 3rd threshold value (skin_B/G_min) and the 4th threshold value (skin_B/G_max), and
Can be according to different colour temperatures and/or brightness, the correspondence establishing and prestore from different above-mentioned value ranges.
Then, the first color ratio and the second color ratio based on block, determine colour of skin block, can include：By first
Color ratio is between first threshold and second threshold and the second color ratio is between the 3rd threshold value and the 4th threshold value
Block is determined as colour of skin block.After preview image is divided into the block of predetermined number, image can be analyzed, determined
Go out to include the image attributes information of colour temperature and/or brightness etc., and according to the correspondence to prestore determine skin_R/G_max and
Skin_R/G_min and skin_B/G_max and skin_B/G_min.Based on this, as skin_R/G_min ＜ R/G in block
Value ＜ skin_R/G_max, and skin_B/G_min ＜ B/G value ＜ skin_B/G_max, can be determined as the colour of skin by the block
block.So as to which the number of colour of skin block and/or colour of skin block are determined as colour of skin spy in the area of predetermined number accounting in the block again
Reference ceases.By obtaining the image attributes information of preview image, the value range of corresponding color ratio is determined, so that it is determined that
Colour of skin block can neatly adjust the value range of color ratio according to actual preview image, and then can be more accurately
Determine features of skin colors information.
Step 103：In the case where characteristics of human body meets the unlocking condition of default target screening-mode, by current shooting
Pattern switching is to the target screening-mode.
In a previous step, it has been determined that gone out face area and/or features of skin colors information, then may determine that in this step
Whether characteristics of human body meets the unlocking condition of default target screening-mode, so as to by current shooting pattern switching to the target
Screening-mode.Similarly, two kinds of characteristics of human body can also be introduced respectively.
When the face area in the preview image for obtaining camera acquisition, the unlocking condition of target screening-mode can wrap
It includes：Accounting of the face area in the preview image is more than the first predetermined threshold value.Specifically, by the agency of above, can be pre-
Each pixel is first defined as a unit area, the area of face is determined according to face coordinate, then this step can basis
Total pixel of preview image determines the gross area of preview image, so that it is determined that go out accounting of the face area in preview image,
The accounting can represent with X, and in practical applications, all pixels point that face includes can also be determined according to face coordinate
Number, so as to according to the pixel number of face pixel number and preview image, determine facial image in preview image
In area accounting.First predetermined threshold value can be pre-set, which can characterize facial image compared with preview graph
The magnitude relationship of picture, facial image more big accounting then in the picture is bigger, which can be with autoface_
Threshold is represented, as X ＞ autoface_threshold, then can current shooting pattern switching to target be shot mould
Formula.In practical applications, autoface_threshold can be set as 0.3, i.e., when the picture for having more than 30% in preview image
, can be by current shooting pattern switching to target screening-mode, and in practical applications when vegetarian refreshments is face pixel, target
Screening-mode can be portrait mode of figure, to achieve the purpose that portrait is optimized.
When the features of skin colors information in the preview image for obtaining camera acquisition, the unlocking condition of target screening-mode can
It is at least one of following to include：The number of colour of skin block is more than the second predetermined threshold value；Colour of skin block is in area accounting in the block
More than third predetermined threshold value.Second predetermined threshold value and third predetermined threshold value can characterize parts of skin compared with preview graph
The magnitude relationship of picture when meeting the unlocking condition of target screening-mode, then can clap current shooting pattern switching to target
Pattern is taken the photograph, and in practical applications, target screening-mode can also be portrait mode of figure, and the skin in portrait is carried out to reach
The purpose of optimization.
Although can determine whether by face area accounting by current shooting pattern switching to target screening-mode,
But in practical applications, it is also possible to deviation occur, for example the shape that can have some and face (is similar to oval) phase
As object, it is also possible to be identified as face, specifically such as automobile tire, oval billboard, oval spherical body etc.,
It is face by these object identifications, it is clear that whether can influence it needs to be determined that being portrait mode of figure.So in one embodiment, it is
Make the result of current shooting pattern switching to target screening-mode is more preferable, face area can be combined and features of skin colors is believed
Breath, collective effect is in the operation of switching screening-mode, specifically, can first obtain the people in the preview image of camera acquisition
Face accumulates, and when accounting of the face area in preview image is more than the first predetermined threshold value, can obtain camera acquisition again
Features of skin colors information in preview image, determine colour of skin block number and/or colour of skin block in whole areas accounting in the block,
It is more than the 3rd default threshold in whole areas accounting in the block when the number of colour of skin block is more than the second predetermined threshold value and/or colour of skin block
During value, by current shooting pattern switching to target screening-mode.So as to by twice judging, make to cut current shooting pattern
The result for shifting to target screening-mode is more preferable.
It is current why to need to carry out manual switching, precisely due to caused by user is unsatisfied with the effect of preview, so
Preview image can be optimized after mobile terminal determines target screening-mode, it also can not need to user's voluntarily hand
Dynamic switching screening-mode, promotes satisfaction of the user to preview image.So in one embodiment, by current shooting pattern
It switches to after target screening-mode, this method can also include：According to the screening-mode, preview image is carried out at effect
Reason.
Specifically, target screening-mode can correspond to the effect tuning parameter of default target screening-mode, in the parameter
The regulative mode to pixel in image can be included, for example is described above, target screening-mode can be portrait mode of figure,
Then the parameter can be included for each face or the different adjustment mode of skin in portrait.So as to according to portrait effect
Tuning parameter carries out effect process to preview image.
User opens image acquisition modality, generally also in order to take pictures, that is, the image collected is preserved, so one
In kind embodiment, after current shooting pattern switching to target screening-mode, this method can also include：According to the shooting
Pattern carries out effect process to the image of shooting and preserves.
For example, portrait mode of figure can correspond to default portrait effect tuning parameter, then it can be according to the parameter, to RAW lattice
The image of formula carries out effect process, and so as to generate the image of JPG forms, (full name is JPEG, is a kind of form of picture, is supported each
The compression of kind rank), and preserve in memory, while the image of RAW forms is deleted, thus during subsequent displaying,
It can show the image of JPG forms.
In practical applications, as shown in Fig. 2, for mobile terminal interface schematic diagram, when user is started by mobile terminal
After collecting image, image preview can be carried out, and opens the screening-mode of an acquiescence simultaneously, and in practice, the acquiescence
Screening-mode can be the pattern for being different from target screening-mode, for example target screening-mode can be previously mentioned portrait mould
Formula, the then screening-mode given tacit consent to can be landscape configurations etc., and preview image can be shown in screen, can also be in upper left corner position
The mark of displaying portrait mode of figure is put, which can represent in image acquisition process, for the method for determination of portrait mode of figure.Tool
Body, can have three ways, such as that unlatching, closing, automatic this determine, correspond to respectively during image is gathered, open portrait mould
Formula closes whether portrait mode of figure, automatic decision are switched to portrait mode of figure, you can with according to image is carried out characteristics of human body obtain come
Judge whether to be switched to portrait mode of figure.As shown in Fig. 2, it is automatic (Auto is abbreviated as A) pattern.
As shown in figure 3, after portrait mode of figure is determined as, the schematic diagram of a portrait can be shown in image shows region
Mark, to prompt user's current shooting pattern as portrait mode of figure.It and can be according to the corresponding effect tuning parameter of portrait mode of figure to pre-
Image of looking at carries out effect process, and more new images, can also be according to the corresponding effect tuning parameter of portrait mode of figure to the figure of shooting
As carrying out effect process and preserving.
It is given above in the embodiment of the present invention, characteristics of human body's acquisition, human body is carried out to the preview image of camera acquisition
Feature can be face area and/or features of skin colors information, meet default target screening-mode unlocking condition in characteristics of human body
In the case of, by current shooting pattern switching to target screening-mode.I.e. after user opens Image Acquisition, by collecting
Image carry out face area and/or features of skin colors information identification come determine by current shooting pattern switching to target shooting mould
Formula, solve it is current need caused by manual switching screening-mode it is complicated for operation, easily miss the shooting best opportunity, more difficult take
The problem of customer satisfaction system image, the present invention can be switched to target shooting mould without user's manual operation by mobile terminal self
Formula simplifies operation, and improves the possibility for capturing the Image Acquisition best opportunity, customer satisfaction system so as to be easier to collect
Image.
The embodiment of the present invention provides a kind of mobile terminal 20, shown in Figure 4, including：Characteristics of human body's acquisition module 201 with
And screening-mode handover module 203, wherein,
Characteristics of human body's acquisition module 201 can be used for obtaining the characteristics of human body in the preview image of camera acquisition, described
Characteristics of human body includes face area and/or features of skin colors information；
Screening-mode handover module 203 can be used for meeting opening for default target screening-mode in the characteristics of human body
In the case of opening condition, by current shooting pattern switching to the target screening-mode.
In one embodiment, characteristics of human body's acquisition module 201 includes face area acquiring unit, Ke Yiyong
In：
Obtain the face area in the preview image of camera acquisition；
Wherein, the unlocking condition of the target screening-mode includes：Face area the accounting in the preview image
Than being more than the first predetermined threshold value.
In one embodiment, characteristics of human body's acquisition module includes Skin Color Information determination unit, can be used for：
The preview image is divided into the block of predetermined number；
Based on the color parameter of each block, the colour of skin block in the preview image is determined；
The number of the colour of skin block and/or the colour of skin block are determined as features of skin colors in area accounting in the block
Information；
Wherein, the unlocking condition of the target screening-mode includes at least one of following：
The number of the colour of skin block is more than the second predetermined threshold value；
The colour of skin block is more than third predetermined threshold value in area accounting in the block.
In one embodiment, the Skin Color Information determination unit includes Skin Color Information determination subelement, can be used for：
The first color ratio and the second color ratio based on each block, determine colour of skin block；
Wherein, the first color ratio is the ratio of red channel color value and green channel color value in each block
Value, the second color ratio are the ratio of blue channel color value and green channel color value in each block.
In one embodiment, the Skin Color Information determination subelement, can be also used for：First based on the block
Color ratio and the second color ratio, before determining the colour of skin block,
The image attributes information of the preview image is obtained, described image attribute information includes colour temperature and/or brightness；
According to described image attribute information, the first threshold of the first color ratio and second threshold and described are determined
The 3rd threshold value and the 4th threshold value of second color ratio；
Wherein, the first threshold and second threshold are used to indicate the value range of the first color ratio in colour of skin block,
3rd threshold value and the 4th threshold value are used to indicate the value range of the second color ratio in colour of skin block；
The Skin Color Information determination subelement, can be used for：
By the first color ratio between the first threshold and the second threshold and the second color ratio is between institute
The block stated between the 3rd threshold value and the 4th threshold value is determined as colour of skin block.
A kind of hardware architecture diagram of Fig. 5 mobile terminals of each embodiment to realize the present invention.It can realize Fig. 1's
The each process realized in embodiment of the method, for user open image collecting function after, according in the image collected
Characteristics of human body, control switch to target screening-mode, with solve currently to need caused by manual switching screening-mode it is complicated for operation,
Easily miss shooting best opportunity, more difficult the problem of taking customer satisfaction system image.To avoid repeating, which is not described herein again.
The mobile terminal 300 includes but not limited to：It is radio frequency unit 301, network module 302, audio output unit 303, defeated
Enter unit 304, sensor 305, display unit 306, user input unit 307, interface unit 308, memory 309, processor
The components such as 310 and power supply 311.It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 5 is not formed
Restriction to mobile terminal, mobile terminal can include than illustrate more or fewer components either combine some components or
Different component arrangements.In embodiments of the present invention, mobile terminal include but not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Wherein, graphics processor 3041 can be used for obtaining the characteristics of human body in the preview image of camera acquisition, described
Characteristics of human body includes face area and/or features of skin colors information；
Processor 310 can be used for the feelings for meeting the unlocking condition of default target screening-mode in the characteristics of human body
Under condition, by current shooting pattern switching to the target screening-mode.
According to mobile terminal provided in this embodiment, characteristics of human body's acquisition, people are carried out to the preview image of camera acquisition
Body characteristics can be face area and/or features of skin colors information, meet default target screening-mode open strip in characteristics of human body
In the case of part, by current shooting pattern switching to target screening-mode.I.e. after user opens Image Acquisition, by acquisition
To image carry out face area and/or features of skin colors information identification come determine by current shooting pattern switching to target shooting mould
Formula, solve it is current need caused by manual switching screening-mode it is complicated for operation, easily miss the shooting best opportunity, more difficult take
The problem of customer satisfaction system image, the present invention can be switched to target shooting mould without user's manual operation by mobile terminal self
Formula simplifies operation, and improves the possibility for capturing the Image Acquisition best opportunity, customer satisfaction system so as to be easier to collect
Image.
It should be understood that in the embodiment of the present invention, radio frequency unit 301 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, handled to processor 310；In addition, by uplink
Data sending is to base station.In general, radio frequency unit 301 includes but not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 301 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal has provided wireless broadband internet to the user by network module 302 and has accessed, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 303 can be receiving by radio frequency unit 301 or network module 302 or in memory 309
The voice data of storage is converted into audio signal and exports as sound.Moreover, audio output unit 303 can also be provided and moved
The relevant audio output of specific function that dynamic terminal 300 performs is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 303 includes loud speaker, buzzer and receiver etc..
Input unit 304 is used to receive audio or video signal.Input unit 304 can include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 3042, graphics processor 3041 is in video acquisition mode
Or the static images or the image data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Treated, and picture frame may be displayed on display unit 306.Through graphics processor 3041, treated that picture frame can be deposited
Storage is sent in memory 309 (or other storage mediums) or via radio frequency unit 301 or network module 302.Mike
Wind 3042 can receive sound, and can be voice data by such acoustic processing.Treated voice data can be
The form output of mobile communication base station can be sent to via radio frequency unit 301 by being converted in the case of telephone calling model.
Mobile terminal 300 further includes at least one sensor 305, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 3061, and proximity sensor can close when mobile terminal 300 is moved in one's ear
Display panel 3061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, available for identification mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 305 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared ray sensor etc. are spent, details are not described herein.
Display unit 306 is used to show by information input by user or be supplied to the information of user.Display unit 306 can wrap
Display panel 3061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be employed
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 3061.
User input unit 307 can be used for the number for receiving input or character information and generation and the use of mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 307 include touch panel 3071 and
Other input equipments 3072.Touch panel 3071, also referred to as touch-screen, collect user on it or neighbouring touch operation
(for example user uses any suitable objects such as finger, stylus or attachment on touch panel 3071 or in touch panel 3071
Neighbouring operation).Touch panel 3071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 310, receiving area
It manages the order that device 310 is sent and is performed.It is furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes touch panel 3071.Except touch panel 3071, user input unit 307 can also include other input equipments
3072.Specifically, other input equipments 3072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operation lever, details are not described herein.
Further, touch panel 3071 can be covered on display panel 3061, when touch panel 3071 is detected at it
On or near touch operation after, send to processor 310 with determine touch event type, be followed by subsequent processing device 310 according to touch
The type for touching event provides corresponding visual output on display panel 3061.Although in Figure 5, touch panel 3071 and display
Panel 3061 is the component independent as two to realize the function that outputs and inputs of mobile terminal, but in some embodiments
In, can be integrated by touch panel 3071 and display panel 3061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place does not limit.
Interface unit 308 is the interface that external device (ED) is connected with mobile terminal 300.For example, external device (ED) can include
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, audio input/output (I/O) port, video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 308 can be used for receive the input (for example, data message, electric power etc.) from external device (ED) and
One or more elements that the input received is transferred in mobile terminal 300 can be used in 300 He of mobile terminal
Data are transmitted between external device (ED).
Memory 309 can be used for storage software program and various data.Memory 309 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 309 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 310 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part is stored in storage by running or performing the software program being stored in memory 309 and/or module and call
Data in device 309 perform the various functions of mobile terminal and processing data, so as to carry out integral monitoring to mobile terminal.Place
Reason device 310 may include one or more processing units；Preferably, processor 310 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, the main processing operation system of application processor, user interface and application program etc., modem processor is main
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 310.
Mobile terminal 300 can also be included to the power supply 311 (such as battery) of all parts power supply, it is preferred that power supply 311
Can be logically contiguous by power-supply management system and processor 310, so as to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 300 includes some unshowned function modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, and including processor 310, memory 309 is stored in
On memory 309 and the computer program that can be run on the processor 310, the computer program are performed by processor 310
Each process of the embodiment of the method for the above-mentioned definite image acquisition modalities of Shi Shixian, and identical technique effect can be reached, to keep away
Exempt to repeat, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each of the embodiment of the method for above-mentioned definite image acquisition modality when being executed by processor
Process, and identical technique effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer-readable storage
Medium, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic disc or CD etc..
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes as this process, method, article or device institute inherently
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal (can be mobile phone, computer services
Device, air conditioner or network equipment etc.) perform method described in each embodiment of the present invention.
The embodiment of the present invention is described above in conjunction with attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned specific embodiment is only schematical rather than restricted, those of ordinary skill in the art
Under the enlightenment of the present invention, present inventive concept and scope of the claimed protection are not being departed from, can also made very much
Form is belonged within the protection of the present invention.
Claims (12)
1. a kind of screening-mode control method, which is characterized in that including：
The characteristics of human body in the preview image of camera acquisition is obtained, the characteristics of human body includes face area and/or the colour of skin is special
Reference ceases；
In the case where the characteristics of human body meets the unlocking condition of default target screening-mode, by current shooting pattern switching
To the target screening-mode.
2. according to the method described in claim 1, it is characterized in that, it is described obtain camera acquisition preview image in human body
Feature, including：
Obtain the face area in the preview image of camera acquisition；
Wherein, the unlocking condition of the target screening-mode includes：Accounting of the face area in the preview image is big
In the first predetermined threshold value.
3. method according to claim 1 or 2, which is characterized in that in the preview image for obtaining camera acquisition
Characteristics of human body, including：
The preview image is divided into the block of predetermined number；
Based on the color parameter of each block, the colour of skin block in the preview image is determined；
The number of the colour of skin block and/or the colour of skin block are determined as features of skin colors letter in area accounting in the block
Breath；
Wherein, the unlocking condition of the target screening-mode includes at least one of following：
The number of the colour of skin block is more than the second predetermined threshold value；
The colour of skin block is more than third predetermined threshold value in area accounting in the block.
4. according to the method described in claim 3, it is characterized in that, the color parameter based on each block, determines described
Colour of skin block in preview image, including：
The first color ratio and the second color ratio based on each block, determine colour of skin block；
Wherein, the first color ratio is the ratio of red channel color value in each block and green channel color value, institute
State ratio of the second color ratio for blue channel color value in each block and green channel color value.
5. the according to the method described in claim 4, it is characterized in that, first color ratio and second based on the block
Color ratio, before determining the colour of skin block, the method further includes：
The image attributes information of the preview image is obtained, described image attribute information includes colour temperature and/or brightness；
According to described image attribute information, the first threshold of the first color ratio and second threshold and described second are determined
3rd threshold value of color ratio and the 4th threshold value；
Wherein, the first threshold and second threshold are used to indicate the value range of the first color ratio in colour of skin block, described
3rd threshold value and the 4th threshold value are used to indicate the value range of the second color ratio in colour of skin block；
The first color ratio and the second color ratio based on the block, determine the colour of skin block, including：
By the first color ratio between the first threshold and the second threshold and the second color ratio is between described
Block between three threshold values and the 4th threshold value is determined as colour of skin block.
6. a kind of mobile terminal, which is characterized in that including：Characteristics of human body's acquisition module and screening-mode handover module, wherein,
Characteristics of human body's acquisition module, for obtaining the characteristics of human body in the preview image of camera acquisition, the human body is special
Sign includes face area and/or features of skin colors information；
The screening-mode handover module, for meeting the unlocking condition of default target screening-mode in the characteristics of human body
In the case of, by current shooting pattern switching to the target screening-mode.
7. device according to claim 6, which is characterized in that characteristics of human body's acquisition module is obtained including face area
Unit is used for：
Obtain the face area in the preview image of camera acquisition；
Wherein, the unlocking condition of the target screening-mode includes：Accounting of the face area in the preview image is big
In the first predetermined threshold value.
8. the device according to claim 6 or 7, which is characterized in that characteristics of human body's acquisition module includes Skin Color Information
Determination unit is used for：
The preview image is divided into the block of predetermined number；
Based on the color parameter of each block, the colour of skin block in the preview image is determined；
The number of the colour of skin block and/or the colour of skin block are determined as features of skin colors letter in area accounting in the block
Breath；
Wherein, the unlocking condition of the target screening-mode includes at least one of following：
The number of the colour of skin block is more than the second predetermined threshold value；
The colour of skin block is more than third predetermined threshold value in area accounting in the block.
9. device according to claim 8, which is characterized in that the Skin Color Information determination unit is determined including Skin Color Information
Subelement is used for：
The first color ratio and the second color ratio based on each block, determine colour of skin block；
Wherein, the first color ratio is the ratio of red channel color value in each block and green channel color value, institute
State ratio of the second color ratio for blue channel color value in each block and green channel color value.
10. device according to claim 9, which is characterized in that the Skin Color Information determination subelement is additionally operable to：It is based on
The the first color ratio and the second color ratio of the block, before determining the colour of skin block,
The image attributes information of the preview image is obtained, described image attribute information includes colour temperature and/or brightness；
According to described image attribute information, the first threshold of the first color ratio and second threshold and described second are determined
3rd threshold value of color ratio and the 4th threshold value；
Wherein, the first threshold and second threshold are used to indicate the value range of the first color ratio in colour of skin block, described
3rd threshold value and the 4th threshold value are used to indicate the value range of the second color ratio in colour of skin block；
The Skin Color Information determination subelement, is used for：
By the first color ratio between the first threshold and the second threshold and the second color ratio is between described
Block between three threshold values and the 4th threshold value is determined as colour of skin block.
11. a kind of mobile terminal, which is characterized in that including：It memory, processor and is stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is performed by the processor
Any one of screening-mode control method the step of.
12. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the screening-mode control as any one of claim 1 to 5 when the computer program is executed by processor
The step of method.
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| CN111401153A (en) * | 2020-02-28 | 2020-07-10 | 中国建设银行股份有限公司 | Method and device for controlling access of closed self-service equipment |
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| CN113593136A (en) * | 2021-07-13 | 2021-11-02 | 杭州海康威视数字技术股份有限公司 | Non-contact pickup method, device and system |
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| CN113727018A (en) * | 2021-06-24 | 2021-11-30 | 荣耀终端有限公司 | Shooting method and equipment |
| CN113727018B (en) * | 2021-06-24 | 2022-12-02 | 荣耀终端有限公司 | Shooting method and equipment |
| CN113593136A (en) * | 2021-07-13 | 2021-11-02 | 杭州海康威视数字技术股份有限公司 | Non-contact pickup method, device and system |
| CN115802144A (en) * | 2023-01-04 | 2023-03-14 | 荣耀终端有限公司 | Video shooting method and related equipment |
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