CN108024065A - A kind of method of terminal taking, terminal and computer-readable recording medium - Google Patents
A kind of method of terminal taking, terminal and computer-readable recording medium Download PDFInfo
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- CN108024065A CN108024065A CN201711457417.0A CN201711457417A CN108024065A CN 108024065 A CN108024065 A CN 108024065A CN 201711457417 A CN201711457417 A CN 201711457417A CN 108024065 A CN108024065 A CN 108024065A
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- main body
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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
- H04N23/67—Focus control based on electronic image sensor signals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/25—Determination of region of interest [ROI] or a volume of interest [VOI]
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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
- H04N23/62—Control of parameters via user interfaces
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- General Physics & Mathematics (AREA)
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- Studio Devices (AREA)
Abstract
The embodiment of the invention discloses a kind of method of terminal taking, terminal and computer-readable recording medium, wherein this method includes：Obtain the initial shooting image of photographed scene；Identify the shooting main body in initial shooting image, determine to shoot the positional information of main body in initial shooting image；The region of interest ROI in initial shooting image is adjusted according to the positional information of shooting main body；The percentage of occupied area is more than first threshold in the ROI of shooting main body after the adjustment；Photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.In this way, adaptively adjusting the size of ROI according to the size of shooting main body, the accuracy of shooting object focusing is improved.
Description
Technical field
The present invention relates to image processing techniques, more particularly to a kind of method of terminal taking, terminal and computer-readable deposit
Storage media.
Background technology
It can most cause user interest in area-of-interest (Regions of Interest, ROI) i.e. image, can most show
The region of picture material, as can efficiency and the accuracy of image procossing and analysis will be greatly improved by extracting these regions.Such as
The present, ROI extractive techniques are applied in many fields, such as target area in JPEG2000 compressed encodings, machine vision
Positioning with identification, in video information subtitle and mark it is automatic carry not, in intelligent transportation system license plate area automatically extract with
Identification, medical image analysis etc., ROI extractive techniques have wide market potential.
At present when being shot to object, shot by ROI set in advance, ROI in shooting process
Size immobilizes, when shooting main body (such as：Electric wire, hair, microorganism when) size it is smaller when, it is this kind of shooting main body exist
Less position is occupied in fixed ROI, focusing is so easy to cause in shooting to other objects, is scheming shooting main body
Thicken as in, reduce picture quality.
The content of the invention
In order to solve the above technical problems, offer of the embodiment of the present invention a kind of method of terminal taking, terminal and computer can
Storage medium is read, the size of ROI can be adaptively adjusted according to the size of shooting main body, improves the accurate of shooting object focusing
Property.
To reach above-mentioned purpose, what the technical solution of the embodiment of the present invention was realized in：An embodiment of the present invention provides
A kind of method of terminal taking, including：
Obtain the initial shooting image of photographed scene；
Identify the shooting main body in the initial shooting image, determine to shoot main body described in the initial shooting image
Positional information；
According to the ROI in the positional information adjustment of the shooting main body initial shooting image；The shooting main body exists
The percentage of occupied area is more than first threshold in ROI after adjustment；
The photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.
In such scheme, the ROI in the positional information adjustment according to the shooting main body initial shooting image,
Including：Using first area as the ROI after adjustment, the first area is the Minimum Area for including the shooting main body；Alternatively,
Using second area as the ROI after adjustment, the area that main body is shot described in the second area accounts for the total face of the shooting main body
Long-pending percentage is more than second threshold.
In such scheme, the first area is rectangular area, border circular areas, elliptical region or is led by the shooting
The region that body border surrounds；The second area is rectangular area, border circular areas or elliptical region.
In such scheme, before the initial shooting image of the acquisition photographed scene, the method further includes：Obtain institute
State the Initial R OI of photographed scene；
ROI in the positional information adjustment according to the shooting main body initial shooting image, including：
The shooting main body and the matching degree of the Initial R OI are determined according to the positional information, the matching degree is institute
State overlapping region area of the shooting main body with the Initial R OI in the initial shooting image and account for the Initial R OI gross areas
Percentage；
When the matching degree meets regularization condition, according to the positional information adjustment of the shooting main body initial shooting
ROI in image.
In such scheme, the regularization condition includes：The matching degree is less than the 3rd threshold value；3rd threshold value be less than or
Person is equal to the first threshold.
In such scheme, the method for the shooting main body in the identification initial shooting image includes：According to focusing area
The central point in domain determines shooting main body.
A kind of terminal is additionally provided in the embodiment of the present invention, the terminal includes：Processor and memory；Wherein,
The processor is used to perform the terminal taking program stored in memory, to realize following steps：
Obtain the initial shooting image of photographed scene；
Identify the shooting main body in the initial shooting image, determine to shoot main body described in the initial shooting image
Positional information；
According to the ROI in the positional information adjustment of the shooting main body initial shooting image；The shooting main body exists
The percentage of occupied area is more than first threshold in ROI after adjustment；
The photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.
In such scheme, the processor is specifically used for performing the terminal taking program that stores in memory, with realize with
Lower step：
Using first area as the ROI after adjustment, the first area is the Minimum Area for including the shooting main body；
Alternatively, using second area as the ROI after adjustment, shot described in the second area main body area account for it is described
The percentage of the shooting main body gross area is more than second threshold.
In such scheme, before the initial shooting image of the acquisition photographed scene, the processor is additionally operable to perform
The terminal taking program stored in memory, to realize following steps：Obtain the Initial R OI of the photographed scene；
The shooting main body and the matching degree of the Initial R OI are determined according to the positional information, the matching degree is institute
State overlapping region area of the shooting main body with the Initial R OI in the initial shooting image and account for the Initial R OI gross areas
Percentage；
When the matching degree meets regularization condition, according to the positional information adjustment of the shooting main body initial shooting
ROI in image.
The embodiment of the present invention additionally provides a kind of computer-readable recording medium, when which is executed by processor
The step of realizing the method described in any of the above-described.
Method, terminal and the computer-readable recording medium of a kind of terminal taking provided in an embodiment of the present invention, obtain and clap
Take the photograph the initial shooting image of scene；Identify the shooting main body in initial shooting image, determine to shoot main body in initial shooting image
Positional information；The ROI in initial shooting image is adjusted according to the positional information of shooting main body；Shoot main body after the adjustment
The percentage of occupied area is more than first threshold in ROI；Photographed scene is shot using the ROI after adjustment as focusing area
Obtain final shooting image.
Using above-mentioned technical proposal, before being shot to small items, by obtaining the initial shooting image of a frame, know
Do not go out to shoot body position, ROI sizes are adaptively adjusted according to the position of shooting main body, using the ROI after adjustment as focusing area
Shooting is completed in domain, solve the problems, such as it is inaccurate to focusing caused by the ROI that is fixed during terminal taking, improve to elongated dimension,
The accuracy of the special object focusing such as microsize, ensures shooting quality.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for realizing each optional mobile terminal of embodiment one of the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the flow chart of the first embodiment of the method for terminal taking in the embodiment of the present invention；
Fig. 4 is that the area-of-interest first involved in the embodiment of the present invention adjusts schematic diagram；
Fig. 5 is the flow chart of the method second embodiment of terminal taking in the embodiment of the present invention；
Fig. 6 is the area-of-interest second adjustment schematic diagram involved in the embodiment of the present invention；
Fig. 7 A are that the area-of-interest the 3rd involved in the embodiment of the present invention adjusts schematic diagram；
Fig. 7 B are that the area-of-interest the 4th involved in the embodiment of the present invention adjusts schematic diagram；
Fig. 8 is the flow chart of the 3rd embodiment of the method for terminal taking in the embodiment of the present invention；
Fig. 9 is the composition structure diagram of terminal in the embodiment of the present invention.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In follow-up description, the suffix using such as " module ", " component " or " unit " for representing element is only
Be conducive to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention can include such as mobile phone, tablet
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), guider, wearable device, Intelligent bracelet, pedometer etc. move
Dynamic terminal, and the fixed terminal such as numeral TV, desktop computer.
It will be illustrated in subsequent descriptions by taking mobile terminal as an example, it will be appreciated by those skilled in the art that except special
Outside element for moving purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, its hardware architecture diagram for a kind of mobile terminal of each embodiment of the realization present invention, the shifting
Dynamic terminal 100 can include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103rd, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108th, the component such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not form the restriction to mobile terminal, and mobile terminal can be included than illustrating more or fewer components,
Either combine some components or different components arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1：
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, the reception and transmission of signal, specifically, by base station
Downlink information receive after, handled to processor 110；In addition, by the data sending of uplink to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrate
Frequency unit 101 can also be communicated by wireless communication with network and other equipment.Above-mentioned wireless communication can use any communication
Standard or agreement, include but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex Long Term Evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex Long Term Evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browse webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, it is simultaneously not belonging to must be configured into for mobile terminal, completely can be according to need
To be omitted in the essential scope for do not change invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
Formula, speech recognition mode, broadcast reception mode when under isotype, by radio frequency unit 101 or WiFi module 102 it is receiving or
It is sound that the voice data stored in memory 109, which is converted into audio signal and exports,.Moreover, audio output unit 103
The relevant audio output of specific function performed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..
A/V input units 104 are used to receive audio or video signal.A/V input units 104 can include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Picture frame after processing may be displayed on display unit 106.Picture frame after the processing of graphics processor 1041 can be deposited
Storage is transmitted in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (voice data), and can be voice data by such acoustic processing.Audio (voice) data after processing can
To be converted to the form output that mobile communication base station can be sent to via radio frequency unit 101 in the case of telephone calling model.
Microphone 1042 can implement various types of noises and eliminate (or suppression) algorithm to eliminate (or suppression) in reception and send sound
The noise produced during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, 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 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 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, the application available for identification mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared ray sensor, details are not described herein.
Display unit 106 is used for the information for showing by information input by user or being supplied to user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 1061.
User input unit 107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 107 may include contact panel 1071 with
And other input equipments 1072.Contact panel 1071, also referred to as touch-screen, collect user on it or neighbouring touch operation
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 1071 or in contact panel 1071
Neighbouring operation), and corresponding attachment device is driven according to formula set in advance.Contact panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
Contact coordinate is converted into, then gives processor 110, and the order that processor 110 is sent can be received and performed.In addition, can
To realize contact panel 1071 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
Include but be not limited to physical keyboard, in function key (such as volume control button, switch key etc.), trace ball, mouse, operation lever etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, when contact panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, contact panel 1071 and display panel
1061 be the component independent as two to realize the function that outputs and inputs of mobile terminal, but in certain embodiments, can
The function that outputs and inputs of mobile terminal is realized so that contact panel 1071 and display panel 1061 is integrated, is not done herein specifically
Limit.
Interface unit 108 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 100.For example,
External device (ED) can include wired or wireless head-band earphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storage software program and various data.Memory 109 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 109 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 110 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
A part, by running or performing the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109, perform the various functions and processing data of mobile terminal, so as to carry out integral monitoring to mobile terminal.Place
Reason device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) to all parts power supply, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
For the ease of understanding the embodiment of the present invention, below to the communications network system that is based on of mobile terminal of the present invention into
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system Organization Chart provided in an embodiment of the present invention, the communication network system
Unite includes UE (User Equipment, the use for communicating connection successively for the LTE system of universal mobile communications technology, the LTE system
Family equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, evolved UMTS lands
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connected with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 can include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling between EPC203, there is provided carrying and connection management.HSS2032 is all to manage for providing some registers
Such as the function of attaching position register (not shown) etc, and preserve some and used in relation to service features, data rate etc.
The dedicated information in family.All customer data can be transmitted by SGW2034, and PGW2035 can provide the IP of UE 201
Address is distributed and other functions, and PCRF2036 is strategy and the charging control strategic decision-making of business data flow and IP bearing resources
Point, it selects and provides available strategy and charging control decision-making with charge execution function unit (not shown) for strategy.
IP operation 204 can include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art it is to be understood that the present invention not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And following new network system etc., do not limit herein.
Based on above-mentioned mobile terminal hardware configuration and communications network system, each embodiment of the method for the present invention is proposed.
First embodiment
First embodiment of the invention proposes a kind of method of terminal taking, can be applied to the terminal with shooting function
In.
Here, the terminal of above-mentioned record can be the fixed terminal with display screen or the shifting with display screen
Dynamic terminal.
The fixed terminal of above-mentioned record can be computer etc., and the mobile terminal of above-mentioned record includes but not limited to mobile electricity
Words, laptop, camera, PDA, PAD, PMP, guider etc..Terminal can be connected to internet, wherein, connection
Mode can be by operator provide mobile internet be attached, can also be by access wireless access point come into
Row network connection.
Here, if mobile terminal has operating system, which can be UNIX, Linux, Windows, Android
(Android), Windows Phone etc..
It should be noted that species, shape, size to the display screen in terminal etc. is not limited, it is exemplary, eventually
Display screen on end can be liquid crystal display etc..
In the first embodiment of the invention, the display screen of above-mentioned record is used for the interface for providing a user human-computer interaction.
Fig. 3 is the flow chart of the first embodiment of the method for terminal taking in the embodiment of the present invention, as shown in figure 3, the party
Method includes：
Step 301：Obtain the initial shooting image of photographed scene.
In actual implementation, initial shooting is obtained by terminals such as the mobile phone with shooting function, tablet computer or cameras
Image.
Exemplary, using the mobile terminal 100 shown in Fig. 1 when being shot to present filming scene, the bat of terminal
Take the photograph alignment lens shooting main body, and using terminal current setting ROI region to shooting main body carry out focusing obtain a frame it is initial
Shooting image；Initial shooting image is analyzed using the method for the embodiment of the present invention again, determines the ROI areas of suitable present filming scene
Domain.
Step 302：Identify the shooting main body in initial shooting image, determine to shoot the position of main body in initial shooting image
Information.
In actual implementation, object can will be shot with a distance from the central point of focusing area as definite shooting main body
One Main Basis, it is to be understood that generally when being shot to object, can will shooting main body as focusing area frame with
Interior, the region that focus frame surrounds here is focusing area.And shooting main body is positioned over the center of focus frame by user's custom,
Main body is shot compared to the central point for other objects closer to focus frame.Therefore, more have closer to focus frame central point
It is probably shooting main body.Furthermore it is also possible to using other influences factor as auxiliary foundation, for example, shooting object is from shooting picture
The distance of central point, the integrality for shooting object edge, shooting kind of object etc..
Exemplary, the central point position for determining focusing area is shooting body position, determines shooting main body position
Postpone, the object in initial shooting image at the position is identified using existing image recognition technology.Specifically, existing figure
The process of identification technology includes：Image preprocessing, image segmentation, normalized, characteristics extraction, neural metwork training waited
Journey, identifies the positional information of the object of focusing area central spot, that is, shoots the information such as the geomery of main body.
Step 303：The ROI in initial shooting image is adjusted according to the positional information of shooting main body；Shooting main body is adjusting
The percentage of occupied area is more than first threshold in ROI afterwards.
Here, ROI is in machine vision, image procossing, from processed image with square frame, circle, ellipse, irregular more
The modes such as side shape sketch the contours of region to be treated, are known as area-of-interest.In image processing field, ROI region is from image
One image-region of middle selection, this region are graphical analysis emphasis of interest.Shooting main body is drawn a circle to approve using ROI, can be with
Realize the shape library to shooting main body, and emphasis processing, it is possible to reduce processing time, increases treatment effeciency.In the present invention
In embodiment, ROI it can be appreciated that focusing area, due to focusing area size in practical applications be it is changeless, because
This, when shooting main body for special object (such as：Elongated dimension, microsize are when object) when, due to the reason that focusing area is larger,
Make to include many backgrounds or foreground object in focusing area, terminal is focused to prospect or background up, cause true
Positive shooting main body thickens, and reduces shooting quality.Therefore, provided in the embodiment of the present invention it is a kind of according to shooting main body from
The method of the change ROI (i.e. focusing area) of adaptation, to solve the problems, such as accurately focus to special object.
Exemplary, after the positional information of shooting main body is determined, using first area as the ROI after adjustment, the firstth area
Domain is the Minimum Area for including shooting main body；Alternatively, using second area as the ROI after adjustment, main body is shot in second area
Area account for shooting the main body gross area percentage be more than second threshold.Specifically, first area can be rectangular area, circle
Region, elliptical region or the region surrounded by shooting main body border；Second area is rectangular area, border circular areas or ellipse
Shape region.
In this step, the percentage that main body occupied area is shot in the ROI after adjustment is more than first threshold, here, first
Threshold value is to ensure shooting main body clearly minimum standard, can be with if occupied area is less than first threshold to shooting main body in the roi
Determine to include more non-shooting main body in Initial R OI, the accuracy of the focusing to shooting main body can be influenced.In actual implementation
When, first threshold can be equal to the 3rd threshold value, can also be more than the 3rd threshold value.
Step 304：Photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.
In the embodiment of the present invention, the size of the ROI after adjustment namely adjust after focusing area size, after adjustment
Focusing area is adapted with shooting size of main body, is solved and is focused when being focused using excessive focusing area to prospect or the back of the body
The problem of on scape, can make most of focusing area in shooting main body when being shot using the focusing area after adjustment,
Improve the accuracy to shooting main body focusing.
Fig. 4 is that the area-of-interest first involved in the embodiment of the present invention adjusts schematic diagram, as shown in figure 4, to one plant
When plant leaf is focused, shooting main body leaf only occupies one in the focusing area (region that left figure square frame surrounds) before adjustment
Portion, the other positions of focusing area also include background object.Using the ROI methods of adjustment in the embodiment of the present invention, with
The region that the border of shooting main body surrounds is as new focusing area, the focusing area (area that left figure heavy line surrounds after adjustment
Domain) it is the region that leaf border surrounds, by identifying shooting main body, determine the boundary profile of shooting main body, so that according to
Boundary profile adjusts ROI, to determine new focusing area.
In order to more embody the purpose of the present invention, on the basis of first embodiment of the invention, such scheme is carried out
It is further to illustrate.
Second embodiment
Fig. 5 is the flow chart of the method second embodiment of terminal taking in the embodiment of the present invention, as shown in figure 5, the flow
Including：
Step 501：Obtain the initial shooting image of photographed scene.
Exemplary, the initial shooting image of photographed scene is obtained using the ROI of current setting, alternatively, being not provided with
The initial shooting image of photographed scene is obtained in the case of ROI.Here, the ROI of current setting can be terminal acquiescence ROI or
The ROI of adjust automatically during person's last time shooting, may more obscure if being not provided with the image of ROI acquisitions.It is appreciated that
It is, since shooting main body is special object, regardless of whether shooting main body in the initial shooting image that setting ROI is obtained
Clarity can all be affected, and image pickup method provided in an embodiment of the present invention can be used to determine what is be adapted with shooting main body
ROI (i.e. focusing area), to improve the accuracy to the focusing of special object, and the total quality of image.
What is referred in the embodiment of the present invention special object refers to small items or slender type object.This type objects is being shot
Occupied area is smaller in picture, so as to cause the occupied area in focusing area also smaller, for example, shared in focusing area
Area is less than 50%.Therefore, for this type objects in shooting, since shared area in focusing area is smaller, easily lead
Cause focusing shooting main body is thickened in the picture to other non-shooting main bodys, reduce picture quality.
Step 502：Obtain the positional information of the Initial R OI of photographed scene.
In actual implementation, the size of Initial R OI is fixed, therefore need to only determine the positional information of Initial R OI.Example
Such as：By rectangular coordinate system of the image upper left corner for origin foundation in units of pixel, the positional information of Initial R OI includes：ROI is horizontal
Coordinate initial position ROI_u, ordinate initial position ROI_v, ROI width ROI_w, ROI height ROI_h.
Step 503：Identify the shooting main body in initial shooting image, determine to shoot the position of main body in initial shooting image
Information.
Exemplary, positional information includes coordinate position of the shooting main body in initial shooting image, specifically includes：Shooting
Main body the abscissa initial position ROI_u ' in initial shooting image, ordinate initial position ROI_v ', shoot body width
ROI_w ', shooting body height ROI_h '.
Step 504：Shooting main body and the matching degree of Initial R OI are determined according to positional information.
Specifically, matching degree accounts for initially for shooting main body with overlapping region areas of the Initial R OI in initial shooting image
The percentage of the ROI gross areas.
Fig. 6 is the area-of-interest second adjustment schematic diagram involved in the embodiment of the present invention, as shown in fig. 6, initially to clap
Rectangular coordinate system of the image upper left corner for origin foundation in units of pixel is taken the photograph, wherein, Initial R OI is located at initial shooting image
Center, the positional information of Initial R OI include：ROI abscissas initial position ROI_u, ordinate initial position ROI_v, ROI width
ROI_w, ROI height ROI_h；The positional information of shooting main body includes：Abscissa of the main body in initial shooting image is shot to rise
Beginning position ROI_u ', ordinate initial position ROI_v ', shoot body width ROI_w ', shooting body height ROI_h '.
The area S ' of the overlapping region (dash area in Fig. 6) of the two is determined according to the positional information of the two, utilizes formula R
=S '/S determines that matching degree R, S are the area of Initial R OI.Specifically, by calculating picture shared by dash area in Initial R OI regions
The ratio of total number of pixels determines matching degree in plain number and ROI region.
Step 505：Judge whether matching degree meets regularization condition, if so, performing step 506；If not, perform step
508。
This step specifically includes：When matching degree meets regularization condition, adjusted according to the positional information of shooting main body initial
ROI in shooting image.Here, regularization condition is to determine the condition that is changed to ROI according to actual photographed scene, is only adjusted
The ROI of Current camera or mobile phone can be just adjusted when shelf-regulating Conditions meet, otherwise, using acquiescence ROI or last definite
ROI shot.
Exemplary, regularization condition can be：Matching degree is less than the 3rd threshold value, and the 3rd threshold value is less than or equal to the first threshold
Value, the 3rd threshold value can be 20%, 30%, 40% or 50%.It is understood that regularization condition is according to actual photographed scene
Determine the condition being changed to ROI, can when occupied area percentage is less than three threshold values to shooting main body in Initial R OI
To determine to include more non-shooting main body in Initial R OI, the accuracy of the focusing to shooting main body can be influenced, therefore, it is necessary to
Initial R OI sizes are adjusted, to adapt to present filming scene size.
Step 506：Using the Minimum Area comprising shooting main body as the ROI after adjustment.
In this step, comprising shooting main body Minimum Area can be rectangular area, border circular areas, elliptical region or
The region surrounded by shooting main body border.Here, most it is adapted to shooting main body by the region that shooting main body border surrounds
ROI, but when shooting main body border is complex, it has not been convenient to when identifying or being not necessarily to be identified, we can utilize bag
For the regular domain of the main body containing shooting as the ROI after adjustment, regular domain is enclosed by regular figures such as rectangle, circle, ellipses
Into region.
Here, the regular domain comprising shooting main body can be the regular domain for including whole shooting main body, or comprising
Shoot the regular domain of main body most contents.
In the embodiment of the present invention, the percentage that main body occupied area is shot in ROI after the adjustment is more than first threshold, this
In, first threshold is to ensure shooting main body clearly minimum standard, if occupied area is less than the first threshold to shooting main body in the roi
Value, it may be determined that more non-shooting main body is included in Initial R OI, the accuracy of the focusing to shooting main body can be influenced.In reality
When border is implemented, first threshold can be equal to the 3rd threshold value, can also be more than the 3rd threshold value.
Step 507：As focusing area photographed scene is shot to obtain final shooting figure using the ROI after adjustment
Picture.
Step 508：Photographed scene is shot using current focusing area.
In embodiments of the present invention, it is exemplary to give according to the positional information adjustment shooting image of shooting main body
The process of ROI region size, the ROI of present filming scene is used as by the use of the minimum regular domain comprising shooting main body.Fig. 7 A are
Area-of-interest the 3rd involved in the embodiment of the present invention adjusts schematic diagram, as shown in Figure 7 A, utilizes existing focusing method pair
It is largely the back of the body in fixed focusing area (square area that four right angles surround in figure) when a kind of slender body is shot
Scape content, easily focusing to going in background, makes shooting main body thicken so in shooting.
Therefore, when being mismatched in the position for shooting the position of main body and focusing area, the size of focusing area is adjusted
Whole, Fig. 7 B are that the area-of-interest the 4th involved in the embodiment of the present invention adjusts schematic diagram, as shown in Figure 7 B, the focusing after adjustment
Region is matched with shooting the appearance and size of main body, shoots main body for slender type, shooting main body is predominantly located in pair after adjustment
In burnt region, influence of the foreground and background object excessive in focusing area to shooting main body is reduced.
In order to more embody the purpose of the present invention, carried out on the basis of first embodiment of the invention and second embodiment
It is further to illustrate.
3rd embodiment
Fig. 8 is the flow chart of the 3rd embodiment of the method for terminal taking in the embodiment of the present invention, as shown in figure 8, the stream
Journey includes：
Step 801：Obtain the initial shooting image of photographed scene.
Step 802：Identify the shooting main body in initial shooting image.
Exemplary, different images is trained based on the image recognition technology of deep learning, obtains possessing image
The identification model of recognition capability；The object in initial shooting image is identified using obtained identification model, is determined initial
Different objects in shooting image.
Multiple objects are included in initial shooting image specifically, first identifying, further by default recognition strategy, by
Terminal automatically identifies shooting main body.
Here, default recognition strategy can include：The 1st parameter of each object is obtained to N parameters, N takes just whole
Number；Obtain this N number of pre-set weight coefficient of parameter；Weight fortune is carried out to the 1st parameter to the N parameters of each object
Calculate, the weighted value that each object may be shooting main body must be beaten；The object for determining weighted value maximum is shooting main body.
In actual implementation, when N is 1, i.e., when each object only includes a kind of parameter, direct commenting according to the parameter
Sentence standard and determine shooting main body.For example, parameter is distance of the object away from focusing area central point, or object is away from initial shooting figure
The distance of inconocenter point；The object for determining minimum range is shooting main body.
In actual implementation, when N is more than 1, i.e., each object includes at least two parameters, then N kinds parameter is carried out
Weight computing, obtains weighted value of each object for shooting main body；The calculation formula of weighted value S is：
PiFor the i-th parameter, qiFor the corresponding weight coefficient of the i-th parameter.For example, the first parameter for object away from focusing area central point away from
From the corresponding weight coefficient of the first parameter is 0.8；Second parameter is the integrated degree of each object, and the second parameter is corresponding
Weight coefficient is 0.2.
Exemplary, identify the 3 kinds of different objects included in initial shooting image, be respectively the 1st object, the 2nd thing
Body and the 3rd object, the 1st weighted value, the 2nd weighted value and the 3rd weighted value are respectively obtained after carrying out weight computing to these three objects,
Determine the 1st object for shooting main body if the 1st weighted value maximum.
Another optional embodiment is to show initial shooting image by the display screen of terminal, then direct by user
Specify shooting main body.For example, user, which clicks on Touch Screen shooting, determines shooting main body.
Step 803：Determine to shoot the positional information of main body and the positional information of Initial R OI in initial shooting image.
Step 804：Shooting main body and the matching degree of Initial R OI are determined according to positional information.
In actual implementation, the positional information for shooting main body can be the position for showing shooting main body all pixels point
Information, the positional information of Initial R OI can also be the positional information of all pixels point included for initial focusing area.Accordingly
, matching degree accounts for the percentage of Initial R OI total pixel numbers for the number of pixels that shooting main body is located in Initial R OI.
Step 805：Judge whether matching degree meets regularization condition, if so, performing step 806；If not, perform step
808。
Step 806：Using second area as the ROI after adjustment, the area that main body is shot in second area accounts for shooting main body
The percentage of the gross area is more than second threshold.
In actual implementation, second area is the region surrounded by regular images such as rectangle, circle, ellipses.
It should be noted that easy to identify or border sparse distribution is not allowed on the border for working as shooting main body, according to the master of object
Part position is wanted to adjust ROI sizes, but the area for shooting main body in the ROI after adjustment accounts for the percentage of the shooting main body gross area
Than second threshold need to be more than.Exemplary, second threshold 50%, 60%, 80% etc..It should be noted that it is more than the second threshold
Value is in order to ensure that most of shooting main body has been positioned at focusing area, so as to ensure to shoot the clarity that main body is integrally focused.
Step 807：As focusing area photographed scene is shot to obtain final shooting figure using the ROI after adjustment
Picture.
Step 808：Photographed scene is shot using current focusing area.
Method, terminal and the computer-readable recording medium of a kind of terminal taking provided in an embodiment of the present invention, obtain and clap
Take the photograph the initial shooting image of scene；Identify the shooting main body in initial shooting image, determine to shoot main body in initial shooting image
Positional information；The ROI in initial shooting image is adjusted according to the positional information of shooting main body；Shoot main body after the adjustment
The percentage of occupied area is more than first threshold in ROI；Photographed scene is shot using the ROI after adjustment as focusing area
Obtain final shooting image.
Using above-mentioned technical proposal, before being shot to small items, by obtaining the initial shooting image of a frame, know
Do not go out to shoot body position, ROI sizes are adaptively adjusted according to the position of shooting main body, using the ROI after adjustment as focusing area
Shooting is completed in domain, solve the problems, such as it is inaccurate to focusing caused by the ROI that is fixed during terminal taking, improve to elongated dimension,
The accuracy of the special object focusing such as microsize, ensures shooting quality.
Fourth embodiment
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of terminal.Fig. 9 is terminal in the embodiment of the present invention
Composition structure diagram, as shown in figure 9, the terminal 90 includes：Processor 901 and memory 902, wherein,
Processor 901 is used to perform the terminal taking program stored in memory 902, to realize following steps：
Obtain the initial shooting image of photographed scene；
Identify the shooting main body in the initial shooting image, determine to shoot main body described in the initial shooting image
Positional information；
According to the ROI in the positional information adjustment of the shooting main body initial shooting image；The shooting main body exists
The percentage of occupied area is more than first threshold in ROI after adjustment；
The photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.
In actual implementation, the processor 901 is specifically used for performing the terminal taking program stored in memory, with reality
Existing following steps：Using first area as the ROI after adjustment, the first area is the smallest region for including the shooting main body
Domain；Alternatively, using second area as the ROI after adjustment, the area that main body is shot described in the second area accounts for the shooting
The percentage of the main body gross area is more than second threshold.
Exemplary, the first area is rectangular area, border circular areas, elliptical region or by the shooting main body
The region that border surrounds；The second area is rectangular area, border circular areas or elliptical region.
In actual implementation, before the initial shooting image of the acquisition photographed scene, the processor 901 is additionally operable to
The terminal taking program stored in memory is performed, to realize following steps：Obtain the Initial R OI of the photographed scene；
The shooting main body and the matching degree of the Initial R OI are determined according to the positional information, the matching degree is institute
State overlapping region area of the shooting main body with the Initial R OI in the initial shooting image and account for the Initial R OI gross areas
Percentage；
When the matching degree meets regularization condition, according to the positional information adjustment of the shooting main body initial shooting
ROI in image.
Exemplary, the regularization condition can include：The matching degree is less than the 3rd threshold value；3rd threshold value is less than
Or equal to the first threshold.
In actual implementation, the processor 901 is specifically used for realizing following steps：It is true according to the central point of focusing area
Surely main body is shot.
In actual implementation, terminal 90 can be the mobile terminal 100 shown in Fig. 1, and processor 901 can be mobile terminal
Processor 110 in 100, memory 902 can be the memory 109 in mobile terminal 100.
In practical applications, above-mentioned processor can be application-specific IC (ASIC, Application
Specific Integrated Circuit), digital signal processing device (DSPD, Digital Signal Processing
Device), programmable logic device (PLD, Programmable Logic Device), field programmable gate array
At least one of (Field-Programmable Gate Array, FPGA), controller, microcontroller, microprocessor.Can
To understand ground, for different equipment, it can also be other to be used for realization the electronic device of above-mentioned processor function, and the present invention is real
Example is applied to be not especially limited.
Above-mentioned memory can be volatile memory (volatile memory), such as random access memory (RAM,
Random-Access Memory)；Or nonvolatile memory (non-volatile memory), such as read-only storage
(ROM, Read-Only Memory), flash memory (flash memory), hard disk (HDD, Hard Disk Drive) or solid
State hard disk (SSD, Solid-State Drive)；Or the combination of the memory of mentioned kind, and to processor provide instruction and
Data.
In addition, each function module in the present embodiment can be integrated in a processing unit or each list
Member be individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated unit both can be with
Realized, can also be realized in the form of software function module in the form of hardware.
If integrated unit realizes that being not intended as independent product is sold or made in the form of software function module
Used time, can be stored in a computer read/write memory medium, based on such understanding, the technical solution sheet of the present embodiment
The part to contribute in other words to the prior art in matter or all or part of the technical solution can be with software products
Form embodies, which is stored in a storage medium, including some instructions are used so that a meter
Calculate machine equipment (can be personal computer, server, or network equipment etc.) or processor (processor) performs this implementation
The all or part of step of example method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
The medium of store program codes.
5th embodiment
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of computer-readable recording medium, such as including
The memory of computer program, above computer program can be performed by the processor of terminal, foregoing one or more to complete
Method and step in a embodiment.
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 key elements, and
And other elements that are not explicitly listed are further included, or further include as this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
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), including some instructions are used so that a station terminal (can be mobile phone, computer, services
Device, air conditioner, or network equipment etc.) method that performs 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 embodiment is only schematical, rather than restricted, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make very much
Form, these are belonged within the protection of the present invention.
Claims (10)
- A kind of 1. method of terminal taking, it is characterised in that the described method includes：Obtain the initial shooting image of photographed scene；Identify the shooting main body in the initial shooting image, determine to shoot the position of main body described in the initial shooting image Information；According to the region of interest ROI in the positional information adjustment of the shooting main body initial shooting image；The shooting The percentage of occupied area is more than first threshold in the ROI of main body after the adjustment；The photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.
- 2. according to the method described in claim 1, it is characterized in that, the positional information according to the shooting main body adjusts institute The ROI in initial shooting image is stated, including：Using first area as the ROI after adjustment, the first area is to include the bat Take the photograph the Minimum Area of main body；Alternatively, using second area as the ROI after adjustment, the area that main body is shot described in the second area accounts for the shooting The percentage of the main body gross area is more than second threshold.
- 3. according to the method described in claim 2, it is characterized in that, the first area is rectangular area, border circular areas, ellipse Shape region or the region surrounded by the shooting main body border；The second area is rectangular area, border circular areas or elliptical region.
- 4. according to the method described in claim 1, it is characterized in that, it is described acquisition photographed scene initial shooting image it Before, the method further includes：Obtain the Initial R OI of the photographed scene；ROI in the positional information adjustment according to the shooting main body initial shooting image, including：The shooting main body and the matching degree of the Initial R OI are determined according to the positional information, the matching degree is the bat Take the photograph overlapping region area of the main body with the Initial R OI in the initial shooting image and account for the hundred of the Initial R OI gross areas Divide ratio；When the matching degree meets regularization condition, the initial shooting image is adjusted according to the positional information of the shooting main body In ROI.
- 5. according to the method described in claim 4, it is characterized in that, the regularization condition includes：The matching degree is less than the 3rd Threshold value；3rd threshold value is less than or equal to the first threshold.
- 6. the according to the method described in claim 1, it is characterized in that, shooting main body identified in the initial shooting image Method include：Shooting main body is determined according to the central point of focusing area.
- 7. a kind of terminal, it is characterised in that the terminal includes：Processor and memory；Wherein,The processor is used to perform the terminal taking program stored in memory, to realize following steps：Obtain the initial shooting image of photographed scene；Identify the shooting main body in the initial shooting image, determine to shoot the position of main body described in the initial shooting image Information；According to the ROI in the positional information adjustment of the shooting main body initial shooting image；The shooting main body is adjusting The percentage of occupied area is more than first threshold in ROI afterwards；The photographed scene is shot using the ROI after adjustment as focusing area to obtain final shooting image.
- 8. terminal according to claim 7, it is characterised in that the processor is specifically used for performing what is stored in memory Terminal taking program, to realize following steps：Using first area as the ROI after adjustment, the first area is the Minimum Area for including the shooting main body；Alternatively, using second area as the ROI after adjustment, the area that main body is shot described in the second area accounts for the shooting The percentage of the main body gross area is more than second threshold.
- 9. according to the method described in claim 1, it is characterized in that, it is described acquisition photographed scene initial shooting image it Before, the processor is additionally operable to perform the terminal taking program stored in memory, to realize following steps：Obtain the shooting The Initial R OI of scene；The shooting main body and the matching degree of the Initial R OI are determined according to the positional information, the matching degree is the bat Take the photograph overlapping region area of the main body with the Initial R OI in the initial shooting image and account for the hundred of the Initial R OI gross areas Divide ratio；When the matching degree meets regularization condition, the initial shooting image is adjusted according to the positional information of the shooting main body In ROI.
- 10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program quilt The step of processor realizes claim 1 to 6 any one of them method when performing.
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| CN108024065B (en) | 2020-07-10 |
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