CN110086992A - Filming control method, mobile terminal and the computer storage medium of mobile terminal - Google Patents
Filming control method, mobile terminal and the computer storage medium of mobile terminal Download PDFInfo
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- CN110086992A CN110086992A CN201910357539.5A CN201910357539A CN110086992A CN 110086992 A CN110086992 A CN 110086992A CN 201910357539 A CN201910357539 A CN 201910357539A CN 110086992 A CN110086992 A CN 110086992A
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- mobile terminal
- coordinate
- tracking object
- image
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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
- H04N23/61—Control of cameras or camera modules based on recognised objects
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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
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
-
- 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
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a kind of filming control methods of mobile terminal, mobile terminal and storage medium, by obtaining the target tracking object in the image currently acquired, obtain the first coordinate and the second coordinate, first coordinate is the coordinate of the first nodal point of target tracking object in the picture, second coordinate is the coordinate of the second central point of image, when calculating the distance between first nodal point and the second central point value greater than first threshold according to the first coordinate and the second coordinate, the kinematic parameter of mobile terminal is calculated according to the first coordinate and the second coordinate, mobile terminal is controlled according to the kinematic parameter to be moved accordingly.The invention also discloses a kind of mobile terminal and storage mediums to have achieved the effect that the object in mobile terminal image in shooting process is maintained at picture centre by implementing above scheme.
Description
Technical field
The present invention relates to technique for taking fields, filming control method, movement more specifically to a kind of mobile terminal
Terminal and computer storage medium.
Background technique
Currently powerful with the video shooting function in terminal shooting function in mobile terminal is popularized with mobile terminal
There can be more and more people to use.In the related technology, when user uses shooting function on mobile terminals, subject is because deviateing
Camera without in the display picture of terminal or far from display picture center, such as smartwatch open video calling mode
When, the attention of user can be placed on the picture of other side, and user can deviate from camera, so that user is out of the picture or separate
Picture center, affects the shooting effect of mobile terminal, and user experience effect is poor.
Summary of the invention
The technical problem to be solved in the present invention is that: it is easy to appear reference object when shooting and deviates camera and separate image
The case where center, provides the filming control method, mobile terminal and storage medium of a kind of mobile terminal for the technical problem.
In order to solve the above technical problems, the present invention provides a kind of filming control method of mobile terminal, the mobile terminal
Filming control method include:
The image capture module that the mobile terminal has terminal body and is arranged in the terminal body；
After the starting of described image acquisition module, the target tracking object in the image currently acquired is obtained；
Obtain the first coordinate and the second coordinate, first coordinate is the of the target tracking object in described image
The coordinate of one central point, second coordinate are the coordinate of the second central point of described image；
The first nodal point and second central point are being calculated according to first coordinate and second coordinate
The distance between value be greater than first threshold when, the mobile terminal is calculated according to first coordinate and second coordinate
Kinematic parameter；
According to the kinematic parameter control the mobile terminal moved accordingly so that the first nodal point and
The distance between described second central point value is less than the first threshold.
Optionally, the kinematic parameter of the mobile terminal is the parameter of terminal body movement；
The kinematic parameter for calculating the mobile terminal according to first coordinate and second coordinate includes:
According to first coordinate and second coordinate, the difference of corresponding coordinate value in X-axis determines described mobile whole
The transverse shifting parameter at end is determined according to the difference of first coordinate and the second coordinate corresponding coordinate value in Y-axis
The longitudinal movement parameter of the mobile terminal；
It controls the mobile terminal according to the kinematic parameter and move accordingly and include:
The terminal body is carried out according to the transverse shifting parameter and longitudinal movement parameter prompts terminal user corresponding
Movement.
Optionally, described image acquisition module includes the rotatable camera being set in the terminal body；The fortune
Dynamic parameter is the parameter of the rotatable camera；
The kinematic parameter for calculating the mobile terminal according to first coordinate and second coordinate includes:
According to first coordinate and second coordinate, the difference of corresponding coordinate value in X-axis determines described mobile whole
The lateral rotation parameter at end is determined according to the difference of first coordinate and the second coordinate corresponding coordinate value in Y-axis
The mobile terminal longitudinally rotates parameter；
It controls the mobile terminal according to the kinematic parameter and move accordingly and include:
The terminal body is carried out according to the transverse shifting parameter and longitudinal movement parameter prompts terminal user corresponding
Rotation.
Optionally, described the mobile terminal is controlled according to the kinematic parameter to be moved accordingly so that described the
The distance between one central point and second central point value are less than the first threshold
It is described to be moved accordingly according to the kinematic parameter control mobile terminal so that first center
The distance between point and second central point value are equal to 0.
Optionally, obtaining the target tracking object in the image that currently acquires includes at least one of:
The tracking object confirmation instruction that terminal user issues is received, according to indicated by tracking object confirmation confirmation command
Tracking object, according to it is described tracking object acquisition described image in target tracking object；
Preset tracking object instruction information in the mobile terminal is obtained, validation of information is indicated according to the tracking object
Indicated tracking object, according to the target tracking object in the tracking object acquisition described image.
Optionally, the tracking object includes face.
Optionally, the target tracking object according in the tracking object acquisition described image includes:
Identify all tracking objects present in described image；
When the tracking object identified is one, the tracking object that will identify that is as target tracking object；
When the tracking object identified is at least two, select in at least two trackings object, in described image
The middle maximum tracking object of area occupied is as target tracking object.
Optionally, when the tracking object identified be at least two, and it is described at least two tracking object in, in the figure
When the maximum tracking object of area occupied includes at least two as in, the target tracking object obtained in described image includes following
At least one:
Selection prompt is sent to terminal user, it is maximum from the area occupied according to the selection instruction of terminal user's feedback
At least two tracking objects in select one as target tracking object；
Random selection one is used as target tracking object from the area occupied maximum at least two trackings object.
Further, the present invention also provides a kind of mobile terminal, the mobile terminal includes processor, memory；
Computer program code is stored in the memory；
The processor calls the computer program code in the memory to realize the shooting of above-mentioned mobile terminal
Control method.
Further, the present invention also provides a kind of storage medium, the storage medium has and can run on a processor
Computer program, the computer program realize the filming control method of above-mentioned mobile terminal when being executed by the processor.
Beneficial effect
The present invention provides the filming control method, mobile terminal and storage medium of a kind of mobile terminal, for existing shooting
The defect that camera is not adjusted according to the position of subject in the process, in the picture by acquisition target tracking object
The coordinate of the central point of the coordinate and image of central point calculates in the central point and image of target tracking object in the picture
The distance between heart point value controls mobile terminal according to kinematic parameter and carries out phase to calculate the kinematic parameter of mobile terminal
The movement answered carries out corresponding movement by mobile terminal and reduces in the central point and image of target tracking object in the picture
The distance between heart point value, so that target tracking object is in picture centre as far as possible in shooting process.
There is camera in the related technology not adjusted according to the position of subject, so subject deviation is taken the photograph
When picture head, display picture center of the meeting far from terminal may even not infused in the problems in display picture, and when user's shooting
Whether meaning is in picture centre less than subject, and it is bad to will lead to shooting effect.Relative to existing image pickup method, this hair
It is bright to realize the function of following subject adjustment camera, there is the effect for making subject be in picture centre.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
The hardware structural diagram of Fig. 1 each embodiment one optional mobile terminal to realize the present invention；
The electrical structure schematic diagram of Fig. 2 each embodiment one optional camera to realize the present invention；
Fig. 3 is the filming control method basic flow chart for the mobile terminal that first embodiment of the invention provides；
Fig. 4 is the filming control method refined flow chart for the mobile terminal that second embodiment of the invention provides；
Fig. 5 is the structural schematic diagram for the terminal that third embodiment of the invention provides.
Specific 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 subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the 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 may include such as mobile phone, plate
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer etc. move
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware structural diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Dynamic terminal 100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components 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 constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Perhaps certain components or different component layouts are combined.
It is specifically introduced below with reference to all parts of the Fig. 1 to mobile terminal:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent 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, penetrating
Frequency unit 101 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including 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, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to omit within the scope of not changing the essence of the invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is received or
The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
Audio output relevant to the specific function that mobile terminal 100 executes can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent 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 (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated 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 a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify the application of 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 sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of 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) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch 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
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 1071 can cover display panel 1061, when touch 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, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain embodiments, it can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone 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 storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it 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 entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing 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) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put
The functions 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.
Embodiment to facilitate the understanding of the present invention is below described the electrical structure schematic diagram of camera.
Referring to Fig. 2, Fig. 2 is a kind of electrical structure schematic diagram of camera provided in an embodiment of the present invention.
Phtographic lens 1211 is made of the multiple optical lens for being used to form shot object image, is single-focus lens or varifocal mirror
Head.Phtographic lens 1211 can move in the direction of the optical axis under the control of lens driver 1221, and lens driver 1221
According to the control signal from lens driving control circuit 1222, the focal position of phtographic lens 1211 is controlled, in zoom lens
In the case of, it also can control focal length.Lens driving control circuit 1222 is according to the control command from microcomputer 1217
Carry out the drive control of lens driver 1221.
It is configured with and takes the photograph near the position of the shot object image formed on the optical axis of phtographic lens 1211, by phtographic lens 1211
Element 1212.Photographing element 1212 is for imaging shot object image and obtaining image data.On photographing element 1212
Two dimension and be arranged in a matrix the photodiode for constituting each pixel.Each photodiode generates photoelectricity corresponding with light income
Switching current, the photoelectric conversion electric current carry out charge accumulation by the capacitor connecting with each photodiode.The preceding table of each pixel
Face is configured with the RGB colour filter of bayer arrangement.
Photographing element 1212 is connect with imaging circuit 1213, which carries out charge in photographing element 1212
Accumulation control and picture signal read control, carry out after reducing resetting noise to the picture signal (analog picture signal) of the reading
Waveform shaping, and then gain raising etc. is carried out to become signal level appropriate.
Imaging circuit 1213 is connect with A/D converter 1214, which carries out modulus to analog picture signal
Conversion, to 1227 output digital image signal (hereinafter referred to as image data) of bus.
Bus 1227 is the transmitting path for being transmitted in the various data that the inside of camera reads or generates.In bus
1227 are connected to above-mentioned A/D converter 1214, are additionally connected to image processor 1215, jpeg processor 1216, microcomputer
Calculation machine 1217, SDRAM (Synchronous Dynamic random access memory, Synchronous Dynamic Random Access Memory)
1218, memory interface (hereinafter referred to as memory I/F) 1219, LCD (Liquid Crystal Display, liquid crystal display
Device) driver 1220.
Image processor 1215 carries out OB to the image data of the output based on photographing element 1212 and subtracts each other processing, white balance
Adjustment, gamma conversion, colour difference signal processing, noise removal process, changes processing, edge processing etc. respectively at color matrix operation simultaneously
Kind image procossing.Jpeg processor 1216 is when by Imagery Data Recording in recording medium 1225, according to JPEG compression mode pressure
Contract the image data read from SDRAM1218.In addition, jpeg processor 1216 shows to carry out image reproducing and carries out JPEG
The decompression of image data.When unziping it, the file being recorded in recording medium 1225 is read, in jpeg processor 1216
In implement decompression after, the image data of decompression is temporarily stored in SDRAM1218 and is carried out on LCD1226
Display.In addition, in the present embodiment, as compression of images decompression mode using JPEG mode, however Compress softwares
Contracting mode is without being limited thereto, it is of course possible to using MPEG, TIFF, other compressed and decompressed modes such as H.264.
Microcomputer 1217 plays the function of the control unit as camera entirety, is uniformly controlled the various processing of camera
Sequence.Microcomputer 1217 is connected to operating unit 1223 and flash memory 1224.
Operating unit 1223 includes but is not limited to physical button or virtual key, and the entity or virtual key can be electricity
Source button, camera button, edit key, dynamic image button, reproduction button, menu button, cross key, OK button, delete button,
The operational controls such as the various input buttons such as large buttons and various enter keys, detect the mode of operation of these operational controls,.
It will test result to export to microcomputer 1217.In addition, the front surface in the LCD1226 as display is equipped with
Touch panel detects the touch location of user, which is exported to microcomputer 1217.Microcomputer 1217
According to the testing result of the operating position from operating unit 1223, various processing sequences corresponding with the operation of user are executed.
Flash memory 1224 stores the program for executing the various processing sequences of microcomputer 1217.Microcomputer 1217
The control of camera entirety is carried out according to the program.In addition, flash memory 1224 stores the various adjusted values of camera, microcomputer 1217
Adjusted value is read, the control of camera is carried out according to the adjusted value.
SDRAM1218 be for image data etc. temporarily stored can electricity rewrite volatile memory.It should
SDRAM1218 temporarily stores the image data exported from A/D converter 1214 and in image processor 1215, jpeg processor
1216 it is equal in the image data that carried out that treated.
Memory interface 1219 is connect with recording medium 1225, is carried out image data and the text being attached in image data
First-class control data write-in recording medium 1225 and read from recording medium 1225 of part.Recording medium 1225 is, for example, can
The recording mediums such as memory card of disassembled and assembled freely on camera main-body, however it is without being limited thereto, it is also possible to be built in camera main-body
In hard disk etc..
LCD driver 1210 is connect with LCD1226, will treated that image data is stored in by image processor 1215
SDRAM1218 when needing to show, reads the image data of SDRAM1218 storage and shows on LCD1226, alternatively, at JPEG
The compressed image data of reason device 1216 is stored in SDRAM1218, and when needing to show, jpeg processor 1216 is read
The compressed image data of SDRAM1218, then unzip it, the image data after decompression is carried out by LCD1226
Display.
LCD1226 configuration performs image display at the back side of camera main-body.The LCD1226LCD, however it is without being limited thereto,
The various display panels (LCD1226) such as organic EL can be used, however it is without being limited thereto, it can also be using various displays such as organic EL
Panel.
Electrical structure schematic diagram based on above-mentioned mobile terminal hardware configuration and camera proposes present invention shooting controlling party
The each embodiment of method.
First embodiment
It is not adjusted according to the position of subject to solve camera, thus when subject deviates camera
When, the problem of can deviate the center of terminal display can not possibly even be photographed, the present invention proposes a kind of mobile terminal
Filming control method, achieved the effect that subject is allowed to be maintained at picture center as far as possible, below with reference to embodiment pair
The filming control method of mobile terminal proposed by the present invention is illustrated.
Fig. 3 is the filming control method basic flow chart of mobile terminal provided in this embodiment, the shooting of the mobile terminal
Control method includes:
After S301, starting image capture module, the target tracking object in the image currently acquired is obtained.
The filming control method of mobile terminal provided in this embodiment can be applied to various mobile terminals, and such as mobile phone is put down
Plate, palm PC, smartwatch, laptop etc..
There are many modes for obtaining the image of acquisition, as needed can be using the side of the image of different acquisition acquisitions
Formula, such as user can be allowed to manually select acquisition or terminal and obtained automatically according to the mode of setting.
Below with reference to embodiment, the case where obtaining automatically to terminal, provides more specific description.Terminal is automatic according to setting
The mode for obtaining the image of acquisition can be timing acquisition, such as the image of one acquisition is obtained every the time of setting, adopt
It further include the clocking value of judgement setting before the image for obtaining acquisition with such mode；It is recorded due to different equipment each seconds
Frame number may be different, and for such situation, the present embodiment also provides the mode that another terminal obtains the image of acquisition automatically, i.e.,
It can be set to obtain the image of frame acquisition every certain frame number, before adopting this method the image for obtaining acquisition, also
Interval frame number including judgement setting.Specifically by the way of and numerical value can be by the need of user or producer according to the actual situation
Want flexible setting.It should be understood that the image of the acquisition in the present embodiment is the preview graph showed in shooting process
Picture or the final effect image transmitted in video call process to conversation object.
It, can be according in image of at least one the following step to get acquisition after the image for getting terminal acquisition
Target tracking object:
When user issues tracking object confirmation instruction, the tracking object confirmation issued according to user indicates acquisition
Tracking object in image, according to the target tracking object in indicated tracking object acquisition image；
If having preset the instruction information of tracking object in mobile terminal, according to indicated by the instruction validation of information of tracking object
Tracking object, according to the target tracking object in indicated tracking object acquisition image.
When terminal is according to the target tracking object in preset tracking object instruction acquisition of information image, and user also under
The confirmation instruction of tracking object is sent out, at this point, the target tracking object that user selects will be as preferential target tracking object.
It should be understood that user issues the mode that tracking object confirmation instructs, there are many methods:
User can directly carry out touch-control in the picture, and terminal obtains the region that user is touched, and user is selected to be touched
Region on tracking object be target tracking object；
User can issue the phonetic order of confirmation tracking object, choose target tracking pair according to the phonetic order of user
As；
Also such as can be to the behavior that mobile phone is operated by other the physical button in mobile phone body
The method for issuing tracking object confirmation instruction for user.
It should be noted that if the tracking object confirmation instruction that user issues is relatively fuzzyyer, such as the region of user's touching
Between two tracking objects, be difficult at this time the tracking object issued according to user confirm confirmation command to target tracking object,
It may remind the user that and reaffirmed, can also be judged in conjunction with the instruction information of tracking object preset in terminal, with
Achieve the effect that more accurately to confirm target tracking object.
After getting the image of acquisition, it is also necessary to the target tracking object in the image of acquisition is got,
In the present embodiment terminal obtain automatically the target tracking object in the image of acquisition process it is as follows:
After terminal gets the image of acquisition, all tracking objects in image can be all identified, when recognizing only
When one tracking object, then using the tracking object identified as target tracking object；When there is at least two tracking object quilts
When recognizing, select in the picture the maximum tracking object of area occupied as target tracking object.
At least there are two when tracking object in recognizing image, there may be the maximum tracking object of area occupied
Also there is at least two the case where, the present embodiment also provides the solution for such situation.Execute at least one following step
Target tracking object is chosen from the maximum tracking object of at least two areas occupied:
Selection prompt is sent to terminal user, it is maximum at least from area occupied according to the selection instruction of terminal user's feedback
Selected in two tracking objects one as target tracking object；
One is randomly choosed from the maximum tracking object of at least two areas occupied is used as target tracking object.
It, can also be with when being still difficult to confirm target tracking object likewise, the selection instruction in user feedback is relatively fuzzy
User is reminded to reaffirm.After by above-mentioned step, the target tracking pair in the image to acquisition may be implemented
As accurately being selected.
Optionally, tracking object in the present embodiment is face.In other specific embodiments, tracking object can also
Be arranged to other can by the object of terminal recognition, such as: the body of pet, the body of people or people, in face of not
With shooting scene when, can choose change tracking object, to adapt to different shooting demands.
The seat of the second central point of S302, the coordinate for obtaining the first nodal point of target tracking object in the picture and image
Mark.
Coordinate in the present embodiment is device coordinate system, i.e. the coordinate of terminal device defined used on a display surface
System, alternatively referred to as display coordinate or screen coordinate system.But it is not limited to above-mentioned coordinate system, in the base for understanding the present embodiment method
On plinth, the expression way of coordinate, which does not influence the present embodiment method, be can achieve the effect that.
S303, the distance between first nodal point and the second central point value are calculated, when first nodal point and the second central point
The distance between value be greater than first threshold when, the kinematic parameter of mobile terminal is calculated according to coordinate.
In the present embodiment, first threshold can be flexibly arranged, can be after or factory built-in when leaving the factory by terminal producer
It is long-range to update；In other specific embodiments, the customized setting of user or update can also be supported.
The kinematic parameter of mobile terminal in the present embodiment is the kinematic parameter of terminal body, has included at least the side of movement
To.The coordinate and image for getting the first nodal point of target tracking object in the picture the second central point coordinate it
Afterwards, the coordinate of the second central point of the coordinate and image of the first nodal point according to target tracking object in the picture is in X-axis
The difference of corresponding coordinate value determines the transverse shifting parameter of mobile terminal；According to target tracking object in the picture first in
The coordinate of second central point of the coordinate and image of heart point difference of corresponding coordinate value in Y-axis determines the longitudinal direction of mobile terminal
Moving parameter.
For there is the case where movable camera in terminal, another specific embodiment is also provided in the present embodiment.
It should be understood that rotatable camera, liftable camera, turnover camera etc., are all movable cameras,
Kinematic parameter is the kinematic parameter that movable camera at the terminal is arranged.The present embodiment give a kind of movable camera be can
The embodiment of kinematic parameter is calculated when rotating camera:
According to the coordinate of the coordinate of the first nodal point of target tracking object in the picture and the second central point of image in X
The difference of corresponding coordinate value determines the lateral rotation parameter of rotatable camera on axis；In the picture according to target tracking object
First nodal point coordinate and image the second central point coordinate in Y-axis the difference of corresponding coordinate value determine it is rotatable
Camera longitudinally rotates parameter.
It should be noted that when terminal uses external camera, it can also be using the mobile terminal in the present embodiment
Filming control method reaches same effect.
S304, it is moved accordingly according to kinematic parameter control mobile terminal so that the first nodal point and second
The distance between central point value is less than first threshold.
In the present embodiment, it is also possible that in the second of target tracking object first nodal point in the picture and image
The distance between heart point value is equal to 0, so that target tracking object is maintained at the center of image.
After kinematic parameter has been determined, according to identified transverse shifting parameter and longitudinal movement parameter prompts terminal user couple
Terminal body is moved accordingly.It should be understood that the movement of object be it is opposite, according to the calculated movement of above-mentioned institute
Parameter can also issue pose adjustment prompt to user, and user is prompted to adjust the position of oneself, so that user can be in camera shooting
The preferable region of effect.
Correspondingly, when having rotatable camera in terminal, it is determined that after the kinematic parameter of rotatable camera, terminal body
On rotatable camera according to identified lateral rotation parameter and longitudinally rotate parameter and correspondingly rotated.
A kind of filming control method of mobile terminal is present embodiments provided, the filming control method of the mobile terminal passes through
The coordinate for obtaining the coordinate of the central point of target tracking object in the picture and the central point of image, calculates target tracking object
The distance between central point of central point and image in the picture value, so that the kinematic parameter of mobile terminal is calculated, according to
Kinematic parameter control mobile terminal is moved accordingly, is carried out corresponding movement by mobile terminal and is reduced target tracking object
The distance between central point of central point and image in the picture value, so that target tracking object can be to the center of image
Position is drawn close, solve in the related technology mobile terminal not according to the position of subject adjust, to work as subject
When body deviates camera, the problem of can deviate the center of terminal display can not possibly even be photographed, shooting will lead to
Effect it is bad, based on method of the invention, terminal has achieved the effect that follow subject to adjust camera, improves bat
The quality taken the photograph.
Second embodiment
The method of the invention realizes the effects that user is maintained at picture center as far as possible, in order to make it easy to understand, knot below
Unification kind application scenarios are illustrated method of the invention, which is that video call function is opened on smartwatch
When, in the application scenarios, smartwatch tracks the target person being retrieved as in image, specific to the face of people.
Fig. 4 is the refined flow chart of the filming control method for the mobile terminal that second embodiment of the invention provides, the movement
The filming control method of terminal includes:
After movable camera on S401, starting mobile terminal main body, according to tracking face preset on mobile terminal
The face in image that instruction acquisition of information currently acquires.
In embodiments of the present invention, mobile terminal is smartwatch, user when on smartwatch with other people video callings,
Start the movable camera on smartwatch, movable camera is rotatable camera.Then according to set by user
The image that an image capture module currently acquires is obtained every the time, such as every 10 seconds, it is pre- in smartwatch according to user
The instruction information of the tracking face first set identifies all faces in the image currently acquired, when smartwatch passes through
As soon as mode above recognizes face, the face that will identify that is as target face；When the face identified is extremely
At few two, select in this at least two face in the picture the maximum face of area occupied as target face；When intelligent hand
The face quantity that table recognizes be at least two, and there are at least two faces all to occupy image maximum area when, intelligent hand
Table sends selection prompt to user, and according to the selection instruction selection of user feedback, the two occupy the face of the maximum area of image
In one be used as target face, user feedback select instruction can for voice instruction or touch screen indicate.
Optionally, user's instruction information of preset tracking face in smartwatch may include preset people
Face information judges according to the preset face information with the presence or absence of preset face in image, if so, directly by the preset people
Face is tracked as target face.
The seat of the second central point of S402, the coordinate for obtaining the first nodal point of target tracking face in the picture and image
Mark.
Smartwatch is according to interval time set by user, in the picture per target face of acquisition at regular intervals
First nodal point coordinate and image the second central point coordinate.
S403, the distance between target tracking face first nodal point in the picture and the second central point of image are calculated
Value calculates mobile terminal according to coordinate when the distance between first nodal point and the second central point value are greater than first threshold
The kinematic parameter of movable camera in main body.
Smartwatch obtain face first nodal point coordinate in the picture in X-axis corresponding coordinate value and image the
Two center point coordinates corresponding coordinate value in X-axis, calculates the difference of above-mentioned coordinate value, determines smartwatch master according to difference
The lateral rotation parameter of rotatable camera on body；
At the same time, smartwatch obtains the first nodal point coordinate of target face in the picture corresponding seat in Y-axis
Second center point coordinate of scale value and image corresponding coordinate value in Y-axis, calculates the difference of above-mentioned coordinate value, according to difference
Determine the rotatable camera in smartwatch main body longitudinally rotates parameter.
S404, movable camera progress is controlled accordingly according to the kinematic parameter of the movable camera in mobile terminal main body
The movement in direction is so that the distance between second central point of target face first nodal point in the picture and image value is
0。
Smartwatch is according to the lateral rotation parameter of the rotatable camera obtained and longitudinally rotates parameter to intelligence
Rotatable camera in wrist-watch main body carries out the rotation of respective direction, so that target tracking face is at the first center of image
Point is 0 with the distance between second central point of image value, that is, realization allows the first nodal point of target face in the picture
It is overlapped with the second central point of image.
The present embodiment indicates information collection face to preset face according to user preset interval time and obtains target person
The center point coordinate of target face is compared with the center point coordinate of image, calculates in the center point coordinate of image by face
The distance between center point coordinate and the center point coordinate of image of target face are worth, when in the central point and image of target face
When the distance value of heart point is not 0, kinematic parameter is calculated by the center point coordinate of target face and the center point coordinate of image,
Rotating camera in control smartwatch main body is moved accordingly according to kinematic parameter, so that in target face
The distance value of heart point and image center is 0.Under this mode, face can be allowed to be maintained at the centre of image, without departing from camera shooting
The shooting area of head.And by each user preset interval time and tracking object acquisition target face set by user, so that
The video call function of smartwatch is more efficient, and target face is intelligently allowed to be maintained at image center, the biased of user's face
The conversation object that will not result in user can't see user's face.
3rd embodiment
The present embodiment additionally provides a kind of mobile terminal, shown in Figure 5 comprising processor 51, memory 52 and logical
Believe bus 53, in which:
Communication bus 53 is for realizing the connection communication between processor 51 and memory 52；
Processor 51 is for executing the one or more programs stored in memory 52, to realize above-described embodiment one and reality
Apply each step of the filming control method of one of example two mobile terminal.
A kind of mobile terminal applied to another scene is provided in the present embodiment, and the mobile terminal under this scene is hand
Machine, tracking object are pet.When mobile phone when shooting, processor 51, which executes one or more programs for storing in memory 52, to be come
Realization is tracked pet, achievees the purpose that pet is made to be maintained at picture center.The concrete operations of the present embodiment are as follows:
Start mobile phone body on shooting function after, the tracking object issued according to mobile phone user with voice be pet really
Recognize instruction, the processor 51 in mobile phone first identifies all existing pets in image.When the processor 51 in mobile phone recognizes
When being only a pet, the pet that will identify that is as target pet；When the processor 51 in mobile phone identifies at least two
It when pet, selects in this at least two pet, the maximum pet of area occupied is as target pet in the picture；When what is identified
When pet is at least two, and in this at least two pet, when the maximum pet of area occupied includes at least two in the picture,
Selection prompt is sent to mobile phone user, selects instruction from area occupied maximum at least two according to the touch-control of mobile phone user's feedback
Selected in pet one as target pet.The interval time of the acquisition target pet can be by user preset, such as 5 seconds.Processing
Device 51 obtains target pet in the coordinate of the coordinate of the first nodal point of image and the second central point of image.Processor 51 obtains
Take the center point coordinate of target pet in the picture center point coordinate of corresponding coordinate value and image in X-axis right in X-axis
The coordinate value answered calculates difference and determines mobile phone transverse shifting parameter；
At the same time, processor 51 obtains the center point coordinate of target pet in the picture corresponding coordinate value in Y-axis
With the center point coordinate of image in Y-axis corresponding coordinate value, calculate the longitudinal movement parameter that difference determines mobile phone.Processor
51 prompt user that mobile phone is carried out the corresponding mobile target that allows according to transverse shifting parameter and longitudinal movement parameter in prompting frame
The central point of pet and the central point of image are overlapped.The mode of being implemented can allow user to know current shooting situation, make mobile phone
It can be adjusted according to the position of subject, so that subject is maintained at picture centre, be mentioned in shooting process
The quality of shooting is risen.
The present embodiment additionally provides a kind of computer readable storage medium, computer-readable recording medium storage have one or
The multiple programs of person, one or more program can be executed by one or more processor, with realize above-mentioned first embodiment or
Each step of the filming control method of mobile terminal in second embodiment.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of filming control method of mobile terminal, the mobile terminal has terminal body and is arranged in the terminal body
On image capture module, which is characterized in that the filming control method of the mobile terminal includes:
After the starting of described image acquisition module, the target tracking object in the image currently acquired is obtained；
Obtain the first coordinate and the second coordinate, first coordinate be the target tracking object in described image first in
The coordinate of heart point, second coordinate are the coordinate of the second central point of described image；
It is calculated between the first nodal point and second central point according to first coordinate and second coordinate
Distance value be greater than first threshold when, the movement of the mobile terminal is calculated according to first coordinate and second coordinate
Parameter；
According to the kinematic parameter control the mobile terminal moved accordingly so that the first nodal point with it is described
The distance between second central point value is less than the first threshold.
2. the filming control method of mobile terminal as described in claim 1, which is characterized in that the movement of the mobile terminal is joined
Number is the parameter of terminal body movement；
The kinematic parameter for calculating the mobile terminal according to first coordinate and second coordinate includes:
According to first coordinate and second coordinate, the difference of corresponding coordinate value in X-axis determines the mobile terminal
Transverse shifting parameter, according to the determination of the difference of first coordinate and the second coordinate corresponding coordinate value in Y-axis
The longitudinal movement parameter of mobile terminal；
It controls the mobile terminal according to the kinematic parameter and move accordingly and include:
The terminal body is moved accordingly according to the transverse shifting parameter and longitudinal movement parameter prompts terminal user
It is dynamic.
3. the filming control method of mobile terminal as described in claim 1, which is characterized in that described image acquisition module includes
The rotatable camera being set in the terminal body；The kinematic parameter is the parameter of the rotatable camera；
The kinematic parameter for calculating the mobile terminal according to first coordinate and second coordinate includes:
According to first coordinate and second coordinate, the difference of corresponding coordinate value in X-axis determines the rotatable camera shooting
The lateral rotation parameter of head is determined according to the difference of first coordinate and the second coordinate corresponding coordinate value in Y-axis
The rotatable camera longitudinally rotates parameter；
It controls the mobile terminal according to the kinematic parameter and move accordingly and include:
Rotatable camera in the terminal body according to the lateral rotation parameter and longitudinally rotates parameter progress accordingly
Rotation.
4. the filming control method of mobile terminal as described in any one of claims 1-3, which is characterized in that described according to
Kinematic parameter control the mobile terminal moved accordingly so that the first nodal point and second central point it
Between distance value be less than the first threshold include:
It is described according to the kinematic parameter control the mobile terminal moved accordingly so that the first nodal point and
The distance between described second central point value is equal to 0.
5. the filming control method of mobile terminal as described in any one of claims 1-3, which is characterized in that obtain current acquisition
Image in target tracking object include at least one of the following:
The tracking object confirmation instruction that terminal user issues is received, is chased after according to indicated by tracking object confirmation confirmation command
Track object, according to the target tracking object in the tracking object acquisition described image；
Preset tracking object instruction information in the mobile terminal is obtained, indicates that validation of information is signified according to the tracking object
The tracking object shown, according to the target tracking object in the tracking object acquisition described image.
6. the filming control method of mobile terminal as claimed in claim 5, which is characterized in that the tracking object includes people
Face.
7. the filming control method of mobile terminal as claimed in claim 5, which is characterized in that described according to the tracking object
Obtain described image in target tracking object include:
Identify all tracking objects present in described image；
When the tracking object identified is one, the tracking object that will identify that is as target tracking object；
When the tracking object identified is at least two, select to account in described image in at least two trackings object
Use the maximum tracking object of area as target tracking object.
8. the filming control method of mobile terminal as claimed in claim 7, which is characterized in that when the tracking object identified is
At least two, and in at least two trackings object, the maximum tracking object of area occupied includes at least in described image
At two, the target tracking object obtained in described image includes at least one of:
Selection prompt is sent to terminal user, it is maximum at least from the area occupied according to the selection instruction of terminal user's feedback
Selected in two tracking objects one as target tracking object；
Random selection one is used as target tracking object from the area occupied maximum at least two trackings object.
9. a kind of mobile terminal, which is characterized in that the mobile terminal includes:
Processor, memory and communication bus；
The communication bus is for realizing the connection communication between processor and memory；
The processor is for executing one or more program stored in memory, to realize as claim 1-8 is any
The filming control method of mobile terminal described in.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or
Multiple programs, one or more of programs can be executed by one or more processor, to realize that claim 1-8 such as appoints
The filming control method of mobile terminal described in one.
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| CN201910357539.5A CN110086992A (en) | 2019-04-29 | 2019-04-29 | Filming control method, mobile terminal and the computer storage medium of mobile terminal |
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