CN107920211A

CN107920211A - A kind of photographic method, terminal and computer-readable recording medium

Info

Publication number: CN107920211A
Application number: CN201711471234.4A
Authority: CN
Inventors: 陈正言
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2018-04-17

Abstract

The embodiment of the invention discloses a kind of photographic method, terminal and computer-readable recording medium, wherein this method includes：Preview image is gathered by camera；The preview image includes destination object to be captured；Obtain current shooting height value and the corresponding target angle of visibility angle value of the camera；The shooting height value be the camera when gathering the preview image and supporting surface distance value；The Target To Film Distance value between the destination object and terminal is determined according to the shooting height value and the target angle of visibility angle value；According to shooting distance value and the default correspondence of acquisition parameters, the corresponding acquisition parameters of the target range value are obtained；The acquisition parameters include at least focal length；If detecting shooting instruction, photo is shot according to the acquisition parameters.The embodiment of the present invention accurately adjusts the focal length of camera by Target To Film Distance value, and shooting obtains the picture rich in detail of destination object, improves the image quality of photo.

Description

A kind of photographic method, terminal and computer-readable recording medium

Technical field

The present invention relates to electronic technology field, more particularly to a kind of photographic method, terminal and computer-readable recording medium.

Background technology

As the popularity rate of the intelligent mobile terminals such as mobile phone, tablet computer is higher and higher, the camera function in mobile terminal It is used widely.People can utilize the camera function record daily life of mobile terminal, also increasingly be chased after during taking pictures Seek the quality of photo.Wherein, many because being known as of photographic quality, the size (pixel) of camera lens, camera lens material, zoom system are influenced System, flash lamp etc., and in the case where camera hardware is constant, the adjusting of light exposure, focal length is to influence the pass of photographic quality Key factor.

However, for layman, people's mode of generally use auto-focusing during taking pictures is clapped According to, can not accurately be focused for different shooting distances, cause shooting photo it is not clear enough, reduce the image of photo Quality.

The content of the invention

The embodiment of the present invention provides a kind of photographic method, terminal and computer-readable recording medium, can shoot to obtain mesh The picture rich in detail of object is marked, improves the image quality of photo.

In a first aspect, an embodiment of the present invention provides a kind of photographic method, this method includes：

Preview image is gathered by camera；Wherein, the preview image includes destination object to be captured；

Obtain current shooting height value and the corresponding target angle of visibility angle value of the camera；Wherein, the shooting Height value be the camera when gathering the preview image and supporting surface distance value；

The mesh between the destination object and terminal is determined according to the shooting height value and the target angle of visibility angle value Mark shooting distance value；

According to shooting distance value and the default correspondence of acquisition parameters, the corresponding shooting ginseng of the target range value is obtained Number；Wherein, the acquisition parameters include at least focal length；

If detecting shooting instruction, photo is shot according to the acquisition parameters.

Second aspect, an embodiment of the present invention provides a kind of terminal, which includes being used to perform above-mentioned first aspect The unit of method.

The third aspect, an embodiment of the present invention provides another terminal, including processor, input equipment, output equipment and Memory, the processor, input equipment, output equipment and memory are connected with each other, wherein, the memory is used to store branch The computer program that terminal performs the above method is held, the computer program includes programmed instruction, and the processor is configured to use In calling described program instruction, the method for performing above-mentioned first aspect.

Fourth aspect, an embodiment of the present invention provides a kind of computer-readable recording medium, the computer-readable storage medium Computer program is stored with, the computer program includes programmed instruction, and described program instruction makes institute when being executed by a processor State the method that processor performs above-mentioned first aspect.

The embodiment of the present invention by the angle of visibility angle value of current shooting height value and camera determine destination object with Target To Film Distance value between terminal, and determine the corresponding acquisition parameters of Target To Film Distance value, which includes Jiao Away from, and taken pictures according to definite acquisition parameters.Terminal can accurately adjust Jiao of camera according to Target To Film Distance value Away from shooting obtains the picture rich in detail of destination object, improves the image quality of photo.

Brief description of the drawings

Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area For logical technical staff, without creative efforts, other attached drawings can also be obtained according to these attached drawings.

Fig. 1 is a kind of schematic flow diagram of photographic method provided in an embodiment of the present invention；

Fig. 2 is a kind of schematic diagram of photographed scene provided in an embodiment of the present invention；

Fig. 3 is a kind of schematic flow diagram for photographic method that another embodiment of the present invention provides；

Fig. 4 is a kind of schematic diagram for photographed scene that another embodiment of the present invention provides；

Fig. 5 is a kind of schematic block diagram of terminal provided in an embodiment of the present invention；

Fig. 6 is a kind of terminal schematic block diagram that another embodiment of the present invention provides.

Embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without making creative work Example, belongs to the scope of protection of the invention.

It should be appreciated that ought use in this specification and in the appended claims, term " comprising " and "comprising" instruction Described feature, entirety, step, operation, the presence of element and/or component, but it is not precluded from one or more of the other feature, whole Body, step, operation, element, component and/or its presence or addition for gathering.

It is also understood that the term used in this description of the invention is merely for the sake of the mesh for describing specific embodiment And be not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless on Other situations are hereafter clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.

It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is Refer to any combinations and all possible combinations of one or more of the associated item listed, and including these combinations.

As used in this specification and in the appended claims, term " if " can be according to context quilt Be construed to " when ... " or " once " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or " if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".

In the specific implementation, the terminal described in the embodiment of the present invention is including but not limited to such as with touch sensitive surface The mobile phone, laptop computer or tablet PC of (for example, touch-screen display and/or touch pad) etc it is other just Portable device.It is to be further understood that in certain embodiments, the equipment is not portable communication device, but with tactile Touch the desktop computer of sensing surface (for example, touch-screen display and/or touch pad).

In discussion below, the terminal including display and touch sensitive surface is described.It is, however, to be understood that It is that terminal can include one or more of the other physical user-interface device of such as physical keyboard, mouse and/or control-rod.

Terminal supports various application programs, such as one or more of following：Drawing application program, demonstration application journey Sequence, word-processing application, website create application program, disk imprinting application program, spreadsheet applications, game application Program, telephony application, videoconference application, email application, instant messaging applications, exercise Support application program, photo management application program, digital camera application program, digital camera application program, web-browsing application Program, digital music player application and/or video frequency player application program.

The various application programs that can be performed in terminal can use at least one public of such as touch sensitive surface Physical user-interface device.It can adjust and/or change among applications and/or in corresponding application programs and touch sensitive table The corresponding information shown in the one or more functions and terminal in face.In this way, the public physical structure of terminal is (for example, touch Sensing surface) it can support the various application programs with user interface directly perceived and transparent for a user.

It is that the embodiment of the present invention provides a kind of schematic flow diagram of photographic method referring to Fig. 1.The photographic method of the present embodiment Executive agent be terminal, terminal can include but is not limited to the shifting such as smart mobile phone, tablet computer or personal digital assistant PDA Dynamic terminal.Photographic method as depicted may include：

S101：Preview image is gathered by camera；Wherein, the preview image includes destination object to be captured.

When detecting that user's click is taken pictures using or by other applications calling camera function, terminal starts terminal Camera, and the preview image for including destination object to be captured is gathered by camera.

Camera can include simulation camera and digital camera, and the camera that terminal starts can be preposition shooting Head or rear camera, the number of rear camera can be one, or 2, not limit herein.Take the photograph As head includes imaging sensor, imaging sensor can be charge coupling device (charge-coupled device, CCD) or Complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), does not limit herein It is fixed.

The size of imaging sensor can include but is not limited to 1/3 inch or 1/4 inch in camera, such as 1/3CCD, 1/ 4CCD.Wherein, the catercorner length of the size generally use imaging sensor of imaging sensor is described, as 1/3CCD is represented The catercorner length of CCD is 1/3.Catercorner length is that 1/3 inch of CCDs of the CDD than 1/4 inch is big.The bigger CCD of size, Under same parfocal aperture, the depth of field is more shallow.That is " virtualization effect " can be better.

Target object can be personage, can also be animal, plant or not have vital object (e.g., building etc.). When target object is personage or animal, target object can be actionless or dynamic mobile, not do herein Limit.The number of target object can be one or at least two, not limit herein.

In identification preview image target object to be captured can be user manually focus be determined or Terminal automatic identification.Specifically, terminal can be by degree of focus highest in image recognition technology identification image or in image The object identification of center is destination object, and the destination object that can also go out terminal recognition is prompted to user, so that user determines It is whether correct.

S102：Obtain current shooting height value and the corresponding target angle of visibility angle value of the camera；Wherein, it is described Shooting height value be the camera when gathering the preview image and supporting surface distance value.

Terminal can obtain the sensing that current shooting height value input by user or terminal pass through terminal built-in The data that device detects determine current shooting height value.Shooting height value is camera terminal and branch when gathering preview image The distance between support face be worth, the distance value be terminal on gravity direction apart from the height value of supporting surface.Wherein, terminal can lead to Cross infrared ray sensor, ultrasonic sensor etc. and be capable of the distance value that the sensor of measurement distance detects and determine current shooting Height value；Terminal can also can measure movement velocity by gravity sensor, acceleration transducer or gyro sensor etc. The movement velocity of gravity direction that detects of sensor and move to the shooting height required time from supporting surface, calculate Shooting height value.

The lens focus of camera and the visible angle (visual angle) of camera lens correspond, and terminal is getting the mirror of camera During head focal length, you can get target visible angle corresponding with lens focus.

Supporting surface refers to when the surface of the supporter of front support photographer, the object of fixed terminal or destination object, and is somebody's turn to do Surface is contacted with photographer, the object of fixed terminal or destination object.The surface of supporter can be the building of earth's surface or building The surface of layer.For example, when destination object station is on ground, supporting surface is ground level；When destination object station in certain building or When on building, supporting surface is that destination object is presently in the corresponding plane of floor surface.When destination object is in the vehicles When interior, supporting surface is the interior surface for being used for carrying or support target object of the vehicles.The intersection point of destination object and supporting surface is Refer to supporting point of the destination object relative to the supporter surface contacted with destination object.

Photographer's (or object of fixed terminal) and destination object are in same supporting surface.

S103：Determined according to the shooting height value and the target angle of visibility angle value between the destination object and terminal Target To Film Distance value.

Target To Film Distance value is terminal and the distance value of destination object in the horizontal direction.

Also referring to Fig. 2, Fig. 2 is a kind of schematic diagram of photographed scene provided in an embodiment of the present invention.As shown in Figure 2 Photographed scene includes terminal 10 and destination object 20, wherein, the visible angle of the camera of terminal 10 is θ, terminal 10 and branch Height between support face is h, and terminal 10 and the distance of destination object 20 in the horizontal direction are L.

Terminal is when getting current shooting height value h and the corresponding target angle of visibility angle value θ of camera, according to public affairs Target To Film Distance value L can be calculated in formula (1).

Wherein, formula (1) is：L=h*tan (90 ° of-θ/2).

S104：According to shooting distance value and the default correspondence of acquisition parameters, it is corresponding to obtain the target range value Acquisition parameters；Wherein, the acquisition parameters include at least focal length.

The default correspondence between acquisition parameters and shooting distance value is prestored in terminal, terminal is getting mesh When marking the Target To Film Distance value L between object and terminal, default corresponding pass that can be according to shooting distance value with acquisition parameters System determines the corresponding acquisition parameters of Target To Film Distance.

Wherein, acquisition parameters can include but is not limited to focal length, can also include f-number, shutter speed, sensitivity, exposure Light quantity etc..

S105：If detecting shooting instruction, photo is shot according to the acquisition parameters.

Terminal is when detecting shooting instruction, according to the corresponding acquisition parameters shooting current visual angle capture of Target To Film Distance The image arrived, and form photo.

Shooting instruction can be triggered by user by shooting button or terminal is touched automatically according to the timed shooting time Hair, is not limited herein.

Such scheme, terminal by the angle of visibility angle value of current shooting height value and camera determine destination object with Target To Film Distance value between terminal, and determine the corresponding acquisition parameters of Target To Film Distance value, which includes Jiao Away from, and taken pictures according to definite acquisition parameters.Terminal can accurately adjust Jiao of camera according to Target To Film Distance value Away from shooting obtains the picture rich in detail of destination object, improves the image quality of photo.

It is that the embodiment of the present invention provides a kind of schematic flow diagram of photographic method referring to Fig. 3.The photographic method of the present embodiment Executive agent be terminal, terminal can include but is not limited to the shifting such as smart mobile phone, tablet computer or personal digital assistant PDA Dynamic terminal.Photographic method as depicted may include：

S201：Preview image is gathered by camera；Wherein, the preview image includes destination object to be captured.

S201 in the present embodiment is identical with the S101 in a upper embodiment, referring specifically to S101 in a upper embodiment Associated description, does not repeat herein.

S202：Obtain current shooting height value；Wherein, the shooting height value is that the camera is described pre- in collection Look at image when and supporting surface distance value.

The distance value be terminal on gravity direction apart from the height value of supporting surface.

Further, S202 includes：Obtain current shooting height value input by user；Or the biography for passing through terminal built-in The data that sensor detects determine current shooting height value.

Terminal can obtain the sensing that current shooting height value input by user or terminal pass through terminal built-in The data that device detects determine current shooting height value.Wherein, terminal can pass through infrared ray sensor, ultrasonic sensor The distance value detected etc. the sensor for being capable of measurement distance determines current shooting height value；Terminal can also be passed by gravity The fortune for the gravity direction that the sensor that sensor, acceleration transducer or gyro sensor etc. can measure movement velocity detects Move speed and move to the shooting height required time from supporting surface, calculate shooting height value.

S203：According to the default correspondence between lens focus and angle of visibility angle value, the camera lens of the camera is obtained The corresponding target angle of visibility angle value of focal length.

Terminal obtain built-in camera configuration parameter information, according to lens focus, camera configuration parameter information with Default correspondence between angle of visibility angle value, obtains the matched lens focus of configuration parameter information with terminal built-in camera Default correspondence between angle of visibility angle value, to be obtained according to the default correspondence between lens focus and angle of visibility angle value Take the corresponding target angle of visibility angle value of lens focus of camera.

Wherein, the configuration parameter information of camera includes the parameter information of lens focus and imaging sensor, and image passes The parameter information of sensor includes the type of imaging sensor and cornerwise length of imaging sensor.Prestored in terminal Have：Default correspondence between lens focus, the configuration parameter information of camera and angle of visibility angle value.Lens focus refers to mirror Head optics posterior principal point to focus distance, be camera lens important performance indexes.For same reference object and shooting distance, The lens focus of camera is bigger, and imaging is smaller, and visual angle is smaller；The lens focus of camera is smaller, and imaging is smaller, visual angle is got over Greatly.

Terminal can also according to the configuration parameter information of camera, lens focus, camera configuration parameter information with can Default correspondence between the angle value of visual angle, directly acquires the target angle of visibility angle value of camera.

For example, when the imaging sensor of the camera of terminal built-in is CCD, terminal can be according to camera lens Jiao of camera Away from and CCD cornerwise length inquiry table one, obtain the corresponding target angle of visibility angle value of lens focus of camera.

Table one：

For example, when the lens focus that terminal gets camera is 2.8 millimeters, the imaging sensor of camera is CCD, its When cornerwise length is 1/3 inch, terminal inquiry table one can obtain 4 millimeters of the corresponding target visible angle of lens focus It is worth for 89.9 °.

S204：Determined according to the shooting height value and the target angle of visibility angle value between the destination object and terminal Target To Film Distance value.

Wherein, formula (1) is：L=h*tan (90 ° of-θ/2).

Alternatively, when destination object is personage, and the number of destination object is at least two, after S202 is performed, this Photographic method in embodiment further includes S205~S206, S204 and S205 and sequentially performs in no particular order.It is specific as follows：

S205：Obtain the expectation height difference between first object object and the second destination object.

Expectation height difference between first object object and the second destination object can be that user inputs in real time, also may be used To be pre-set and store in terminal, or by user from the expectation height difference at least two candidates that terminal provides Determine.It is expected that height difference can be specifically configured according to actual needs, be not limited herein.

It can be the height difference reached corresponding to " it is poor most to sprout height " effect it is expected height difference.By 30 centimetres in network Height difference be known as " it is poor most to sprout height ", in the present embodiment, it is expected height difference can be 30 centimetres, may be set to be it He is worth.

S206：It is corresponding according to the corresponding first picture altitude value of the first object object, second destination object Second picture altitude value and the expectation height difference, determine and prompt the first object object or second target pair The moving direction and moving distance value answered.

Terminal, can be according in current shooting height value, image and current when getting current shooting height value The number of pixel that is included of the identical length of shooting height value, calculate corresponding first image of first object object respectively Height value and the corresponding second picture altitude value of the second destination object.

Illustrated below by taking preview image includes 2 destination objects as an example, it is to be understood that in other embodiment In, can be according to realizing two targets pair when it is that desired height is poor to need to realize the height difference between multiple destination objects Height difference as between is the implementation of desired height difference.

Specifically, also referring to Fig. 4, Fig. 4 is a kind of schematic diagram for photographed scene that another embodiment of the present invention provides. Photographed scene as shown in Figure 4 includes terminal 10,20 and second destination object 30 of first object object, wherein, terminal 10 The visible angle of camera is θ, and the height between terminal 10 and supporting surface is h, and terminal 10 and destination object 20 are in the horizontal direction On distance be L.

The corresponding first picture altitude value H of second destination object as shown in Figure 4₁=H_ab+H_bc, wherein, H_abWith current bat It is identical to take the photograph height value h, then, i.e. H_ab=h.

Terminal obtains H_abComprising pixel the first sum S₁, and obtain H_bcComprising pixel second sum S₂, calculate H_bcWith H_bdBetween ratio, wherein, H_bd=h.Due to the second sum S₂With the first sum S₁Between ratio be equal to H_bc With H_bdBetween ratio, terminal can be according to formula (2)H is calculated_bc, at this time, by formula (2) and H_ab=h Substitution formula H₁=H_ab+H_bc, you can obtain formula (3)：

Terminal can obtain the corresponding first picture altitude value of first object object in preview image according to formula (3).

The corresponding second picture altitude value H of the second destination object can be calculated as stated above for terminal₂, terminal is according to the phase Hope height difference, it is expected the sum and the corresponding distance of a pixel of the corresponding pixel of height difference, determine first First picture altitude value of destination object and the second picture altitude value of the second destination object reach when it is expected height difference, it is necessary to The sum of the pixel of experience, and the pixel undergone according to pixel, the needs of the vertex correspondence of the first picture altitude value The final position of the definite first object object of sum, or according to the pixel of the vertex correspondence of the second picture altitude value, need through The sum for the pixel gone through determines the final position of the second destination object.

It is understood that terminal can be according to keeping the position of first object object constant, according to first object pair The initial position of elephant is determined the final position of arrival after the movement of the second destination object；It can also keep the second destination object Position is constant, is determined the final position of arrival according to the initial position of the second destination object after the movement of first object object；Also It can determine that first object object will after moving according to the initial position of first object object, the initial position of the second destination object The final position of arrival and determine the final position of arrival after the movement of the second destination object, at this time first object it is corresponding and Second destination object is required to move.

Afterwards, terminal is true according to the final position of the corresponding initial position a of first object object and first object object Determining first object object needs mobile distance and moving direction, or according to the corresponding initial position a ' of the second destination object And second the final position of destination object determine that the second destination object needs mobile distance and moving direction.

The moving direction of first object object and displacement distance are prompted to the user that takes pictures by terminal, so that the user that takes pictures refers to Lead first object object and be moved to the final position that the needs for the first object object that terminal determines reach；Or by the second target The moving direction and displacement distance of object are prompted to the user that takes pictures, so that user guided second destination object of taking pictures is moved to end The final position that the needs of the second definite destination object of end reach, so as to realize first object object in the photograph taken Height difference between the second destination object is expectation height difference.

In other embodiments, terminal can prompt user using dimensional measuring instrument to the target pair in preview image The image of elephant carries out physical measurement, so as to obtain the corresponding first picture altitude value of first object object, the second destination object pair The the second picture altitude value answered, then the first picture altitude value and the second picture altitude input by user are received by human-computer interaction Value.Afterwards, terminal determine as stated above and prompt first object object or the second destination object need mobile distance and Moving direction.

When photographic method does not include S205~S206, terminal can perform S207 after S204 is performed；Photographic method bag When including S205~S206, terminal performs S207 after S204 and S207 is performed.

S207：According to shooting distance value and the default correspondence of acquisition parameters, it is corresponding to obtain the target range value Acquisition parameters；Wherein, the acquisition parameters include at least focal length.

Wherein, acquisition parameters can include but is not limited to focal length, and focal length when which is imaging, can also include aperture Value, shutter speed, sensitivity, light exposure etc..Wherein, when destination object is apart from the distance difference of camera, it is imaged for clarity, Need to adjust the distance between camera lens and imaging sensor (imaging surface), which is focus process；It is, target When the distance of object distance camera is different, imaging focal length the distance between (camera lens from sensor) is different.

Aperture we can generally represent that, as f/1.4, f/8 etc., f-number is used to adjust the light-inletting quantity of camera, light with f Circle value is smaller, and it is bigger to represent aperture, and more light can be allowed to pass through；The size of aperture and its numeral be it is just opposite, therefore F/1.4 is large aperture, and f/8 is small aperture.

Shutter speed is faster, and light exposure is just fewer.What sensitivity represented is the imaging sensor of camera to the quick of light Sense degree.Sensitivity adds digital representation with ISO, and numeral is higher, and sensitivity is higher, and imaging sensor is more sensitive to light.

Further, S207 can include S2071：According to shooting distance value and the default correspondence of acquisition parameters, obtain Take the corresponding focal length of the target range value and f-number.

Prestored the default correspondence of shooting distance value and acquisition parameters in terminal, acquisition parameters include focal length with And f-number, terminal obtain the Target To Film Distance value when determining the Target To Film Distance value between destination object and terminal Corresponding focal length and f-number.

Alternatively, photographic method can also include S208：The brightness value of current ambient light is obtained, and determines the illumination It is worth corresponding exposure value.

The default correspondence between the brightness value of ambient light and exposure value is prestored in terminal, terminal is being got During the brightness value of current ambient light, it can be determined according to the default correspondence between the brightness value and exposure value of ambient light The corresponding exposure value of the brightness value.

Wherein, S208 and S202~S207 is sequentially performed in no particular order, can be performed when performing S202~S207 S208。

S209：If detecting shooting instruction, photo is shot according to the acquisition parameters.

When performing S2071, S208, S209 can include terminal：If detecting shooting instruction, according to the brightness value Corresponding exposure value, the target range are worth corresponding focal length and f-number shooting photo.

Further, S209 can include S2091~S2092.

S2091：If detecting shooting instruction, the movement velocity of the destination object is obtained.

Terminal obtains the movement velocity of the destination object of focusing when detecting shooting instruction.Wherein, when either objective pair The movement velocity of elephant is more than snacks, performs S2092；When the movement velocity of destination object is equal to zero, by the bat determined in S207 Parameter is taken the photograph to take pictures.

S2092：If the movement velocity is more than zero, the target position of the destination object is determined according to the movement velocity Put, and the acquisition parameters are adjusted according to the target location, taken pictures according to the acquisition parameters after the adjustment.

Terminal is when the movement velocity for detecting destination object is more than zero, and second in record first position, motion process Position and the run duration that the second place is moved to from first position, according to first position and the second place calculate movement away from From, and according to the move distance being calculated and the run duration got, calculate destination object and moved to from first position The average speed of the second place, according to the average speed prediction destination object of destination object in the target position that subsequent time is reached Put.After subsequent time is at the time of the second place is moved to.Subsequent time can be at the time of the second place is moved to it Afterwards 0.1 second or 0.5 second etc..

Terminal determines current shooting distance according to the target location of destination object, and obtains current shooting distance and correspond to Acquisition parameters, according to the acquisition parameters obtained in the corresponding acquisition parameters adjustment S207 of current shooting distance, and according to tune Acquisition parameters after whole are taken pictures.

Specifically, it is initial position before terminal can be moved according to destination object, the target location for predicting destination object, initial Between first shooting distance of position correspondence, the sum of the pixel of the first shooting distance protection, initial position and target location The sum of pixel that is included of line segment, calculate sum, initial position and the target of the pixel that the first shooting distance includes The total ratio for the pixel that line segment between position is included, according to the ratio it is corresponding with initial position first shooting away from From calculating the distance between initial position and target location, and the distance the first shooting distance corresponding with initial position is added Method obtains corresponding second shooting distance in target location (i.e. current shooting distance).

Wherein, can be with according to the method for distance between the ratio calculation initial position of the number of pixel and target location With reference to the above-mentioned method that picture altitude is calculated according to the number of pixel, do not repeat herein.

Terminal can determine the acquisition parameters that should be used during terminal taking photo according to current shooting distance, and shooting is shone The acquisition parameters that should be used during piece include but not limited to focal length, and the f-number that can also include using, should use Photosensitive value or aperture time etc..

The acquisition parameters determined in S207 are adjusted to the above-mentioned definite acquisition parameters that should be used by terminal.

Further, when performing S2071, S208, S2092 can be specially terminal：If the movement velocity is more than zero, The target location of the destination object is then determined according to the movement velocity, and target range value is adjusted according to the target location Corresponding focal length and f-number shoot photo, according to the focal length after the corresponding exposure value of current light value, adjustment and adjustment F-number shooting photo afterwards.

Alternatively, after S204, the image pickup method of the present embodiment further includes S210~S213.Specifically：

S210：According to the default correspondence between the dimension information of lens focus, shooting distance and coverage, really Determine the dimension information of the corresponding target coverage of the Target To Film Distance.

The lens focus, shooting distance and coverage (or catching range of camera lens) of camera have been prestored in terminal Dimension information between default correspondence, terminal is according to the lens focus of the camera of terminal built-in, terminal and target pair Target To Film Distance as between, determines under Target To Film Distance, the corresponding target coverage of lens focus of camera Dimension information, and obtain the length value and width value of the size of target coverage.Wherein, the lens focus of camera with Default correspondence between the dimension information of coverage (or catching range of camera lens) refers to table two.

Table two：

For example, when the lens focus of camera is 2.8 millimeters (mm), when shooting distance is 5 meters (m), target coverage To be 13 meters long, the area corresponding to wide 9.8 meters.

Wherein, S2010 and S207 is step arranged side by side, and order performs in no particular order.

S211：The corresponding figure of the destination object is determined according to the target angle of visibility angle value and the shooting height value Image height angle value.

The method of the corresponding picture altitude value of calculating destination object see the associated description in S206, not repeat herein.

S212：It is true according to the dimension information of the target coverage and the corresponding picture altitude value of the destination object Determine the corresponding picture traverse value of the destination object.

Due to the first ratio of the picture altitude value of destination object width value corresponding with target coverage, and target Second ratio of the picture traverse value length value corresponding with target coverage of object is equal, and therefore, terminal is according to S206 In method when the picture altitude value of destination object is calculated, can be according to the corresponding length value of target coverage, target pair The ratio of the picture altitude value width value corresponding with target coverage of elephant, calculates the corresponding picture traverse value of destination object. Wherein, picture traverse value refers to the width value of destination object face camera in preview image.

S213：According to the corresponding picture altitude value of dimension information, the destination object of the target coverage and described The corresponding picture traverse value of destination object, determines and exports described in the photo that destination object is corresponding to repair graph parameter.

For example, terminal can calculate the corresponding length value of target coverage picture altitude value corresponding with destination object it Between lenth ratio, and according to the default correspondence between default lenth ratio and width ratio, obtain the lenth ratio Corresponding width ratio, so that mesh be calculated according to the width ratio that is calculated, the corresponding width value of target coverage Corresponding target image width value is marked, and according to the difference between the corresponding target image width value of destination object and picture traverse value Value, what output was used to adjusting the corresponding picture traverse of destination object repaiies graph parameter, so that terminal is when obtaining photo, is repaiied according to this Graph parameter carries out repairing figure, to beautify photo.

Terminal determines the corresponding exposure value of the brightness value by the brightness value of current ambient light, and according to the exposure value, The corresponding focal length of Target To Film Distance and f-number are taken pictures, it is not necessary to user's manual setting exposure value, focal length and light The acquisition parameters such as circle, can prevent the acquisition parameters that user is adjusted manually from mismatching with current photographed scene to cause shooting to obtain The unsharp situation of photograph occur, since accurate whole exposure value, the corresponding focal length of Target To Film Distance and aperture can be set Value, improves the imaging definition of destination object, further improves the image quality of photo.

Terminal can export according to the imaging width value and image height value of destination object and repair graph parameter, so as to root Graph parameter is repaiied according to this to shooting obtained photo to beautify, to adjust the stature ratio in photograph.

Terminal can be to the shooting distance during the destination object predicted motion in movement, so as to the target pair in movement As focusing, the image quality for improving the destination object in movement is obtained.

Terminal can determine and carry according to height difference, the corresponding picture altitude value of any two destination object it is expected Show first object object or the corresponding moving direction of the second target and moving distance value, being had between the destination object in photo There is the effect for most sprouting height difference.

The embodiment of the present invention also provides a kind of terminal, which is used for the list for performing foregoing any one of them photographic method Member.Specifically, it is a kind of schematic block diagram of terminal provided in an embodiment of the present invention referring to Fig. 5.The terminal 5 of the present embodiment includes： Image acquisition units 501, first acquisition unit 502, the first determination unit 503, second acquisition unit 504 and photographing unit 505。

Image acquisition units 501, for gathering preview image by camera；Wherein, the preview image includes and waits to clap The destination object taken the photograph；

First acquisition unit 502, it is visual for obtaining current shooting height value and the corresponding target of the camera Angle value；Wherein, the shooting height value be the camera when gathering the preview image and supporting surface distance value；

First determination unit 503, for determining the mesh according to the shooting height value and the target angle of visibility angle value Mark the Target To Film Distance value between object and terminal；

Second acquisition unit 504, for the default correspondence according to shooting distance value and acquisition parameters, obtains the mesh The corresponding acquisition parameters of subject distance value；Wherein, the acquisition parameters include at least focal length；

Photographing unit 505, if for detecting shooting instruction, photo is shot according to the acquisition parameters.

Further, photographing unit 505 specifically includes：

Detection unit 5051, if for detecting shooting instruction, obtains the movement velocity of the destination object；

Shooting unit 5052, if being more than zero for the movement velocity, the target is determined according to the movement velocity The target location of object, and the acquisition parameters are adjusted according to the target location, according to the acquisition parameters after the adjustment into Row is taken pictures.

Alternatively, first acquisition unit 502 includes：

Shooting height acquiring unit 5021, for obtaining current shooting height value；

Visual angle acquiring unit 5022, for according to the default correspondence between lens focus and angle of visibility angle value, obtaining The corresponding target angle of visibility angle value of lens focus of the camera.

Further, shooting height acquiring unit 5021 is specifically used for：Obtain current shooting height value input by user； Or the data detected by the sensor of terminal built-in determine current shooting height value.

Alternatively, terminal further includes：

Coverage determination unit 506, for when the first determination unit 503 determines Target To Film Distance, according to camera lens Default correspondence between the dimension information of focal length, shooting distance and coverage, determines the Target To Film Distance pair The dimension information for the target coverage answered；

Picture altitude determination unit 507, for the target angle of visibility angle value that is obtained according to first acquisition unit 502 with And the shooting height value determines the corresponding picture altitude value of the destination object；

Picture traverse determination unit 508, for the dimension information according to the target coverage and the target pair As corresponding picture altitude value determines the corresponding picture traverse value of the destination object；

Graph parameter determination unit 509 is repaiied, it is corresponding for dimension information, the destination object according to the target coverage Picture altitude value and the corresponding picture traverse value of the destination object, determine and export the photograph of the shooting of shooting unit 5052 The destination object in piece is corresponding to repair graph parameter.

Alternatively, the destination object is at least two, and terminal can also include：

3rd acquiring unit 510, for obtaining the expectation height difference between first object object and the second destination object；

Second determination unit 511, for according to the corresponding first picture altitude value of the first object object, described second The corresponding second picture altitude value of destination object and it is described expectation height difference, determine and prompt the first object object or The corresponding moving direction of second target and moving distance value, the second determination unit 511 prompt the first object object Or after the corresponding moving direction of second target and moving distance value, notification information, notice are sent to photographing unit 505 Photographing unit 505 detects photographing instruction.

Specifically, terminal can also include：

4th acquiring unit 512, for obtaining the brightness value of current ambient light, and determines the corresponding exposure of the brightness value Light value；

Second acquisition unit 504 is specifically used for：According to shooting distance value and the default correspondence of acquisition parameters, institute is obtained State the corresponding focal length of target range value and f-number；

Photographing unit 504 is specifically used for：If detecting shooting instruction, according to the corresponding exposure value of the brightness value, institute State the corresponding focal length of target range value and f-number shooting photo.

It is a kind of terminal schematic block diagram that another embodiment of the present invention provides referring to Fig. 6.In the present embodiment as depicted Terminal 6 can include：One or more processors 601；One or more input equipments 602, one or more output equipments 603 and memory 604.Above-mentioned processor 601, input equipment 602, output equipment 603 and memory 604 are connected by bus 605 Connect.Memory 604 is used to store computer program, and the computer program includes programmed instruction, and processor 601 is deposited for execution The programmed instruction that reservoir 604 stores.Wherein, processor 601 is arranged to call described program instruction to perform：

Alternatively, processor 601 is specific is arranged to call described program instruction to perform：

Obtain current shooting height value；

According to the default correspondence between lens focus and angle of visibility angle value, the lens focus pair of the camera is obtained The target angle of visibility angle value answered.

Alternatively, it is described that the destination object and end are determined according to the shooting height value and the target angle of visibility angle value After Target To Film Distance value between end, processor 601 is additionally configured to call described program instruction to perform：

According to the default correspondence between the dimension information of lens focus, shooting distance and coverage, institute is determined State the dimension information of the corresponding target coverage of Target To Film Distance；

Determine that the corresponding image of the destination object is high according to the target angle of visibility angle value and the shooting height value Angle value；

Institute is determined according to the dimension information of the target coverage and the corresponding picture altitude value of the destination object State the corresponding picture traverse value of destination object；

According to the corresponding picture altitude value of dimension information, the destination object of the target coverage and the target pair As corresponding picture traverse value, determine and export described in the photo that destination object is corresponding to repair graph parameter.

Alternatively, the destination object is at least two；If described detect shooting instruction, according to the acquisition parameters Before shooting photo, processor 601 is additionally configured to call described program instruction to perform：

Obtain the expectation height difference between first object object and the second destination object；

According to the corresponding first picture altitude value of the first object object, corresponding second figure of second destination object Image height angle value and the expectation height difference, determine and prompt the first object object or the corresponding shifting of second target Dynamic direction and moving distance value.

Alternatively, processor 601 is additionally configured to call described program instruction to perform：

If detecting shooting instruction, the movement velocity of the destination object is obtained；

If the movement velocity is more than zero, the target location of the destination object is determined according to the movement velocity, and The acquisition parameters are adjusted according to the target location, are taken pictures according to the acquisition parameters after the adjustment.

Alternatively, processor 601 is specific is arranged to call described program instruction to perform：Obtain input by user current Shooting height value；Or the data detected by the sensor of terminal built-in determine current shooting height value.

Alternatively, processor 601 is arranged to call described program instruction to perform：

The brightness value of current ambient light is obtained, and determines the corresponding exposure value of the brightness value；

According to shooting distance value and the default correspondence of acquisition parameters, obtain the corresponding focal length of the target range value with And f-number；

If detecting shooting instruction, corresponding Jiao is worth according to the corresponding exposure value of the brightness value, the target range Away from and f-number shooting photo.

It should be appreciated that in embodiments of the present invention, alleged processor 601 can be central processing unit (Central Processing Unit, CPU), which can also be other general processors, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at It can also be any conventional processor etc. to manage device.

Input equipment 602 can include Trackpad, fingerprint adopt sensor (finger print information that is used to gathering user and fingerprint Directional information), microphone etc., output equipment 603 can include display (LCD etc.), loudspeaker etc..

The memory 604 can include read-only storage and random access memory, and to processor 410 provide instruction and Data.The a part of of memory 604 can also include nonvolatile RAM.For example, memory 604 can also be deposited Store up the information of device type.

In the specific implementation, processor 601, input equipment 602, the output equipment 603 described in the embodiment of the present invention can The implementation described in the first embodiment and second embodiment of photographic method provided in an embodiment of the present invention is performed, also may be used The implementation of the described terminal of the embodiment of the present invention is performed, details are not described herein.

A kind of computer-readable recording medium, the computer-readable storage medium are provided in another embodiment of the invention Matter is stored with computer program, and the computer program includes programmed instruction, and described program instruction is realized when being executed by processor：

Alternatively, implemented when described program instruction is executed by processor：

Obtain current shooting height value；

Alternatively, it is described that the destination object and end are determined according to the shooting height value and the target angle of visibility angle value After Target To Film Distance value between end, described program instruction is also realized when being executed by processor：

Alternatively, the destination object is at least two；If described detect shooting instruction, according to the acquisition parameters Before shooting photo, described program instruction is also realized when being executed by processor：

Alternatively, implemented when described program instruction is executed by processor：It is high to obtain current shooting input by user Angle value；Or the data detected by the sensor of terminal built-in determine current shooting height value.

Alternatively, realized when described program instruction is executed by processor：

The computer-readable recording medium can be the internal storage unit of the terminal described in foregoing any embodiment, example Such as the hard disk or memory of terminal.The computer-readable recording medium can also be the External memory equipment of the terminal, such as The plug-in type hard disk being equipped with the terminal, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card) etc..Further, the computer-readable recording medium can also be wrapped both Including the internal storage unit of the terminal also includes External memory equipment.The computer-readable recording medium is used to store described Other programs and data needed for computer program and the terminal.The computer-readable recording medium can be also used for temporarily When store the data that has exported or will export.

Those of ordinary skill in the art may realize that each exemplary list described with reference to the embodiments described herein Member and algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This A little functions are performed with hardware or software mode actually, application-specific and design constraint depending on technical solution.Specially Industry technical staff can realize described function to each specific application using distinct methods, but this realization is not It is considered as beyond the scope of this invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, the end of foregoing description End and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed terminal and method, can pass through it Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or discussed phase Coupling, direct-coupling or communication connection between mutually can be INDIRECT COUPLING or the communication by some interfaces, device or unit Connection or electricity, the connection of mechanical or other forms.

The unit illustrated as separating component may or may not be physically separate, be shown as unit The component shown may or may not be physical location, you can with positioned at a place, or can also be distributed to multiple In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs Purpose.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also It is that unit is individually physically present or two or more units integrate in a unit.It is above-mentioned integrated Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially The part to contribute in other words to the prior art, or all or part of the technical solution can be in the form of software product Embody, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment the method for the present invention Portion or part steps.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 store journey The medium of sequence code.

The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced Change, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection domain subject to.

Claims

A kind of 1. photographic method, it is characterised in that including：

Preview image is gathered by camera；Wherein, the preview image includes destination object to be captured；

Obtain current shooting height value and the corresponding target angle of visibility angle value of the camera；Wherein, the shooting height Value be the camera when gathering the preview image and supporting surface distance value；

Determine that the target between the destination object and terminal is clapped according to the shooting height value and the target angle of visibility angle value Photographic range value；

According to shooting distance value and the default correspondence of acquisition parameters, the corresponding acquisition parameters of the target range value are obtained； Wherein, the acquisition parameters include at least focal length；

If detecting shooting instruction, photo is shot according to the acquisition parameters.
2. photographic method according to claim 1, it is characterised in that the current shooting height value and described of obtaining The corresponding target angle of visibility angle value of camera, including：

Obtain current shooting height value；

According to the default correspondence between lens focus and angle of visibility angle value, the lens focus for obtaining the camera is corresponding Target angle of visibility angle value.
3. photographic method according to claim 1 or 2, it is characterised in that it is described according to the shooting height value with it is described After target angle of visibility angle value determines the Target To Film Distance value between the destination object and terminal, further include：

According to the default correspondence between the dimension information of lens focus, shooting distance and coverage, the mesh is determined Mark the dimension information of the corresponding target coverage of shooting distance；

The corresponding picture altitude value of the destination object is determined according to the target angle of visibility angle value and the shooting height value；

The mesh is determined according to the dimension information of the target coverage and the corresponding picture altitude value of the destination object Mark the corresponding picture traverse value of object；

According to the corresponding picture altitude value of dimension information, the destination object of the target coverage and the destination object pair The picture traverse value answered, determines and exports described in the photo that destination object is corresponding to repair graph parameter.
4. photographic method according to claim 1, it is characterised in that the destination object is at least two, if the inspection Shooting instruction is measured, then before shooting photo according to the acquisition parameters, is further included：

Obtain the expectation height difference between first object object and the second destination object；

It is high according to the corresponding first picture altitude value of the first object object, corresponding second image of second destination object Angle value and the expectation height difference, determine and prompt the first object object or the corresponding movement side of second target To and moving distance value.
5. photographic method according to claim 1, it is characterised in that if described detect shooting instruction, according to Acquisition parameters shooting photo includes：

If detecting shooting instruction, the movement velocity of the destination object is obtained；

If the movement velocity is more than zero, the target location of the destination object is determined according to the movement velocity, and according to The target location adjusts the acquisition parameters, is taken pictures according to the acquisition parameters after the adjustment.
6. photographic method according to claim 2, it is characterised in that the current shooting height value of the acquisition includes：

Obtain current shooting height value input by user；Or

The data detected by the sensor of terminal built-in determine current shooting height value.
7. according to claim 1,2,4-6 any one of them photographic methods, it is characterised in that further include：

The brightness value of current ambient light is obtained, and determines the corresponding exposure value of the brightness value；

It is described according to shooting distance value and the default correspondence of acquisition parameters, obtain the corresponding shooting ginseng of the target range value Number includes：

According to shooting distance value and the default correspondence of acquisition parameters, the corresponding focal length of the target range value and light are obtained Circle value；

If described detect shooting instruction, shooting photo according to the acquisition parameters includes：

If detecting shooting instruction, according to the corresponding exposure value of the brightness value, the target range be worth corresponding focal length with And f-number shooting photo.
8. a kind of terminal, it is characterised in that including the list for performing the method as described in claim 1-7 any claims Member.
9. a kind of terminal, it is characterised in that the processor, defeated including processor, input equipment, output equipment and memory Enter equipment, output equipment and memory to be connected with each other, wherein, the memory is used to store computer program, the computer Program includes programmed instruction, and the processor is arranged to call described program instruction, performs such as any one of claim 1-7 The method.
A kind of 10. computer-readable recording medium, it is characterised in that the computer-readable storage medium is stored with computer program, The computer program includes programmed instruction, and described program instruction makes the processor perform such as right when being executed by a processor It is required that 1-7 any one of them methods.