CN106210513A - A kind of method for previewing and mobile terminal of taking pictures based on mobile terminal - Google Patents

A kind of method for previewing and mobile terminal of taking pictures based on mobile terminal Download PDF

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Publication number
CN106210513A
CN106210513A CN201610513562.5A CN201610513562A CN106210513A CN 106210513 A CN106210513 A CN 106210513A CN 201610513562 A CN201610513562 A CN 201610513562A CN 106210513 A CN106210513 A CN 106210513A
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taking pictures
feature object
geographical feature
geographical
parameter
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杨涛
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
    • G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G06F16/583—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/62—Control of parameters via user interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Data Mining & Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Library & Information Science (AREA)
  • Remote Sensing (AREA)
  • Human Computer Interaction (AREA)
  • Studio Devices (AREA)

Abstract

Embodiments providing a kind of method for previewing and mobile terminal of taking pictures based on mobile terminal, described mobile terminal has photographic head, and described method includes: gather the preview image data of described photographic head；Inquiry is positioned at the geographical feature object in geographical position residing for described mobile device；Described geographical feature object is detected in described preview image data；When described geographical feature object being detected, determine default parameter of taking pictures according to described geographical feature object；Carry out taking pictures preview operation according to described photographic head described in parameter call of taking pictures.The most metastable owing to being suitable for the parameter taken pictures of these geographical feature objects, by auxiliary operation of taking pictures, reach the parameter taken pictures that automatic recommendation is suitable for, it is to avoid user manually selects parameter of taking pictures, improves the simplicity of operation, further, improve the technique effect of the quality taken pictures.

Description

A kind of method for previewing and mobile terminal of taking pictures based on mobile terminal
Technical field
The present invention relates to communication technical field, particularly relate to a kind of take pictures method for previewing and a kind of shifting of based on mobile terminal Dynamic terminal.
Background technology
Along with the fast development of science and technology, mobile terminal has become as in our life indispensable as a kind of means of communication A part, it is achieved that the most accessible communication, a lot of conventional functions that it is comprised, bring just to our life Profit.
Owing to mobile terminal is easy to carry, and mobile terminal quality of taking pictures constantly promotes, and user increasingly likes with moving Dynamic terminal is taken pictures.
Especially, user likes at tourist site or famously takes pictures, and the main body taken pictures is usually current location Have significant object, such as, when the Tian'anmen Square, Beijing, most people can face toward the rostrum of Tian An Men, the people's heroes are recorded Read upright stone tablet or the Great Hall of the People is taken pictures；When Paris, FRA god of war square, most people can be taken pictures facing to Eiffel Tower, etc..
When taking pictures the object that these are significant, usually user manually selects some parameters taken pictures, such as, manually Selecting to be suitable for the mode of composition of these objects, the focusing area manually selecting these objects applicable is focused, etc., not only grasp Make loaded down with trivial details, and, user is relatively low to the ability of taking pictures, and manually selects the parameter taken pictures the most poor, causes the quality taken pictures relatively low.
Summary of the invention
The embodiment of the present invention provides a kind of method for previewing of taking pictures based on mobile terminal, to solve for significant object Take pictures not only complex operation, and the problem that the quality taken pictures is relatively low.
First aspect, it is provided that a kind of method for previewing of taking pictures based on mobile terminal, described method is applied to mobile terminal, Described mobile terminal has photographic head, and described method includes:
Gather the preview image data of described photographic head；
Inquiry is positioned at the geographical feature object in geographical position residing for described mobile device；
Described geographical feature object is detected in described preview image data；
When described geographical feature object being detected, determine default parameter of taking pictures according to described geographical feature object；
Carry out taking pictures preview operation according to described photographic head described in parameter call of taking pictures.
Second aspect, it is provided that the method for previewing of taking pictures of a kind of mobile terminal, described terminal includes:
Preview image data acquisition module, for gathering the preview image data of described photographic head；
Geographical feature Object Query module, is positioned at the geographical feature pair in geographical position residing for described mobile device for inquiry As；
Geographical feature obj ect detection module, for detecting described geographical feature object in described preview image data；
Take pictures parameter determination module, for when described geographical feature object being detected, according to described geographical feature object Determine default parameter of taking pictures；
Preview operation module, for according to described in photographic head described in parameter call of taking pictures carry out taking pictures preview operation.
So, in the embodiment of the present invention, by obtaining the preview image data that photographic head gathers when preview, inquiry is positioned at The geographical feature object in geographical position residing for mobile device, when this preview image data recognizes geographical feature object, pin This geographical feature object is determined take pictures parameter the technological means of preview operation of taking pictures, owing to geographical feature object has Relative stability, typically will not occur the biggest change in a very long time, therefore, be suitable for these geographical feature objects The parameter taken pictures is the most metastable, by auxiliary operation of taking pictures, has reached the parameter taken pictures that automatic recommendation is suitable for, has kept away Exempt from user to manually select parameter of taking pictures, improve the simplicity of operation, and, improve the technique effect of the quality taken pictures.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by institute in the description to the embodiment of the present invention The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings Obtain other accompanying drawing.
Fig. 1 is the flow chart of steps of a kind of based on mobile terminal the method for previewing embodiment of taking pictures of the present invention；
Fig. 2 is the flow chart of steps of a kind of based on mobile terminal another embodiment of method for previewing of taking pictures of the present invention；
Fig. 3 A is the prompting exemplary plot of a kind of nine grids mode of composition of the embodiment of the present invention；
Fig. 3 B is the prompting exemplary plot of a kind of golden section mode of composition of the embodiment of the present invention；
Fig. 4 is the structured flowchart of a kind of mobile terminal of the present invention；
Fig. 5 is the block diagram of the geographical feature Object Query module in the mobile terminal embodiment of the present invention；
Fig. 6 is the block diagram of the geographical feature obj ect detection module in the mobile terminal embodiment of the present invention；
Fig. 7 is a kind of block diagram of the parameter determination module of taking pictures in the mobile terminal embodiment of the present invention；
Fig. 8 is the block diagram of the focusing area calculating sub module in the mobile terminal embodiment of the present invention；
Fig. 9 is a kind of block diagram of the preview operation module in the mobile terminal embodiment of the present invention；
Figure 10 is the another kind of block diagram of the parameter determination module of taking pictures in the mobile terminal embodiment of the present invention；
Figure 11 is the another kind of block diagram of the parameter determination module of taking pictures in the mobile terminal embodiment of the present invention；
Figure 12 is the another kind of block diagram of the preview operation module in the mobile terminal embodiment of the present invention；
Figure 13 is the structured flowchart of the another kind of mobile terminal of the present invention；
Figure 14 is the block diagram of the mobile terminal of another embodiment of the present invention；
Figure 15 is the structural representation of the mobile terminal of another embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiments wholely.Based on this Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise Example, broadly falls into the scope of protection of the invention.
Embodiment one
With reference to Fig. 1, it is shown that the steps flow chart of a kind of based on mobile terminal the method for previewing embodiment of taking pictures of the present invention Figure, specifically may include steps of:
Step 101, gathers the preview image data of described photographic head.
In implementing, the embodiment of the present invention can be applied in the terminal, and this mobile terminal has photographic head, example As, mobile phone, panel computer, personal digital assistant, wearable device (such as glasses, wrist-watch etc.) etc..
Photographic head is a hardware on mobile terminal, can be only fitted to the front portion of mobile terminal (also known as preposition shooting Head), it is also possible to be arranged in the back (also known as post-positioned pick-up head) of mobile device, additionally, the quantity of this photographic head can be single, Can also be two or more, etc., this is not any limitation as by the embodiment of the present invention.
In embodiments of the present invention, the operating system of mobile terminal can include Android (Android), IOS, Windows Phone, Windows etc., generally can support that photographic head application runs, and the application of this photographic head can drive camera collection pre- Look at view data, to carry out shooting photo, video shooting.
It should be noted that preview image data, it is the view data gathered when preview (preview) operates, not View data is generated during shooting.
In android system, PreviewCallback function can be passed through, adjust back each two field picture of preview in real time Data.
Step 102, inquiry is positioned at the geographical feature object in geographical position residing for described mobile device.
In implementing, the geographical feature object being in certain geographical position can be gathered in advance, this geographical position Putting and refer generally to administrative region, these geographical feature objects are generally in this geographical position has distinctive object, is used for taking pictures Probability higher, and be one of important element in photo.
Such as, in the Tian'anmen Square, Pekinese, geographical feature object can be the rostrum of Tian An Men, the Great Hall of the People, people People's Tugu Pahlawan etc.；When Paris, FRA god of war square, geographical feature object can be Eiffel Tower, etc..
Additionally, the object of these geographical feature objects wide in range property that can also be some.
Such as, in Huangshan, geographical feature object can be Mount Huang；In Guilin City, geographical feature object can be Lijiang River, Etc..
Step 103, detects described geographical feature object in described preview image data.
In implementing, can by the preview image data frame data of present frame by encoded translated for picture, at this Detecting geographical feature object in collection of illustrative plates, wherein, the size of picture is in the same size with preview image data, facilitates coordinates computed etc. Numerical value.
In embodiments of the present invention, in order to reduce the amount of calculation of mobile terminal, preview image data can be sent to clothes Business device, is detected geographical feature object by server in preview image data, and mobile terminal receives the testing result of server.
It is of course also possible to detected geographical feature object, the embodiment of the present invention pair in preview image data by mobile terminal This is not any limitation as.
In implementing, by the way of images match, geographical feature object can be detected in preview image data.
It is two frames to same object (such as geographical feature object) interested in the environment of difference that images match is specified Or multiple image data, compare and find out total object interested (such as geographical feature object).
The essence of images match is to use the optimal searching algorithm in images match, in the situation that image basis element is similar Under be search for search.
Article identification based on image is exactly a kind of special circumstances of images match: first mark out sense in standard picture The article (such as geographical feature object) of interest, then in the upper search of target image (such as preview image data), if in target image Article interested (such as geographical feature object) in standard picture occur, then can mark exactly.
The mathematical description of images match is as follows:
Search graph picture is described as the image array of M × M, T (m, n) m, n=0,1,2......, N-1；With the figure of N × N As group describes template S (m, n) m, the n=0,1,2......M-1 of reference.Wherein, the purpose of do so is to find one to survey Degree, (m, n) with at T, (m, n) whether the middle N × N image searched is optimal coupling, is searching besides to be used for measuring reference template S On rope image, (m, n), and (m, (i j), calculates superposition reference template T n) to move to all possible position reference template S Measure search subimage Sij(m, matching degree n), to judge search subimage S with reference template TijWith reference template T (m, N) the most identical.
Step 104, when described geographical feature object being detected, determines default taking pictures according to described geographical feature object Parameter.
If preview image data has geographical feature object, then can determine, based on this geographical feature object, ginseng of taking pictures Number, such as, adjusts focusing area, prompting mode of composition, blank level adjustment etc..
Step 105, is carried out taking pictures preview operation according to described photographic head described in parameter call of taking pictures.
In embodiments of the present invention, automatic camera parameter can be set, to assist user to carry out photographing operation when preview.
So, in the embodiment of the present invention, by obtaining the preview image data that photographic head gathers when preview, inquiry is positioned at The geographical feature object in geographical position residing for mobile device, when this preview image data recognizes geographical feature object, pin This geographical feature object is determined take pictures parameter the technological means of preview operation of taking pictures, owing to geographical feature object has Relative stability, typically will not occur the biggest change in a very long time, therefore, be suitable for these geographical feature objects The parameter taken pictures is the most metastable, by auxiliary operation of taking pictures, has reached the parameter taken pictures that automatic recommendation is suitable for, has kept away Exempt from user to manually select parameter of taking pictures, improve the simplicity of operation, and, improve the technique effect of the quality taken pictures.
Embodiment two
With reference to Fig. 2, it is shown that the steps flow chart of a kind of based on mobile terminal another embodiment of photographic method of the present invention Figure, specifically may include steps of:
Step 201, gathers the preview image data of described photographic head.
In implementing, mobile terminal has photographic head, and photographic head typically can include camera lens Lens, pedestal The parts such as Holder, infrared filter IR, image sensing processor Sensor, circuit board.
Wherein, image sensing processor Sensor is a kind of semiconductor chip, and its surface includes hundreds of thousands to millions of The photodiode not waited, when photodiode receives light irradiation, can produce electric charge.
Image sensing processor Sensor can convert light into the signal of telecommunication, then is turned by internal DA (digital-to-analogue conversion) It is changed to digital signal, the imaging plane that plane is view data at image sensing processor Sensor place.
In actual applications, the optical imagery that scenery (SCENE) is generated by the camera lens Lens of photographic head projects image On sensing processor Sensor surface, then turn to the signal of telecommunication, after A/D (analog digital conversion) changes, become digital picture letter Number, by data image signal is compressed and is converted into specific image literary composition by digital signal processing chip DSP or code database Part form, is located by the processor (Central Processing Unit, CPU) of data bus transmission to mobile terminal Reason, then can show at the display screen of mobile terminal.
Step 202, carries out positioning action to described mobile device, it is thus achieved that geographical position.
In implementing, can be positioned by one or more following location modes, to obtain mobile terminal The geographical position (representing with geographical location information) being presently in:
Satellite fix mode, Wireless Fidelity location mode, architecture mode, cell ID location mode, senior before Mode is positioned to link trilateration.
Wherein, satellite fix mode the position signalling of terminal can be sent to position backstage position.At present may be used The global position system used includes GPS (Global Positioning System, global positioning system), GLONASS (lattice Luo Nasi), dipper system, Galileo (Galileo) system etc..
The signal that Wireless Fidelity (Wi-Fi) location mode can send according to the Wi-Fi Hotspot being deployed in each place is strong Degree and the whole world unique mac address (Media Access Control Address, media access control address, or referred to as hardware Address, for defining the position of the network equipment) position.
Architecture mode can utilize operator (such as mobile operator, operator of UNICOM, telecom operators etc.) Base station determines the position of terminal to the measuring and calculating distance of the distance of terminal.
Cell ID (Cell ID) location mode can be passed through residing for wireless network (such as cellular network) reporting terminal Cell id (can be estimated according to the base station of service), and location service platform translates into latitude and longitude coordinates cell id.
Advanced forward link triangle polyester fibre mode (AFLT) is when carrying out positioning action, and terminal is while listening for multiple base stations The pilot frequency information of (at least 3 base stations), utilizes chip time delay to determine that terminal arrives the distance of neighbouring base station, finally uses triangle polyester fibre Method calculates the position of terminal.
In order to improve the degree of accuracy of location, can be with satellite fix mode, architecture mode, Wireless Fidelity location mode Deng, position mode, advanced forward link triangle polyester fibre mode etc. in conjunction with other several location mode, such as cell ID, enter Row location.Such as, on mobile terminals can be to use satellite fix mode, architecture mode, Wireless Fidelity location mode phase In conjunction with mixed positioning mode position.
Certainly, above-mentioned location mode is intended only as example, when implementing the embodiment of the present invention, can set according to practical situation Putting other location modes, this is not any limitation as by the embodiment of the present invention.It addition, in addition to the mode of above-mentioned location, art technology Personnel can be to use other location mode according to actual needs, and this is not any limitation as by the embodiment of the present invention.
Step 203, according to the corresponding relation between geographical position and the geographical feature object preset, inquires about described geographical position Put the geographical feature object of correspondence.
Mapping relations between geographical position and geographical feature object can be man-to-man relation, it is also possible to is one-to-many Relation, be stored in advance in data base, the literary name section of this data base can have ID, geographical position numbering, geographical position, geography Feature object numbering, geographical feature object, geographical feature object another name, remarks, etc., its example can be as shown in the table.
Owing to the mapping relations between geographical position and geographical feature object may change, and, the data volume of data base Relatively big, so, data base is typically stored in server.
Therefore, in a kind of inquiry mode, geographical position can be sent to server, to server lookup mobile terminal The characteristic object in residing geographical position.
Certainly, when the service network of geographical position change, registration changes, can move from server buffer in advance The characteristic object in geographical position residing for dynamic terminal.
Therefore, in another kind of inquiry mode, can be in the caching that mobile terminal is local residing for enquiry mobile terminal The characteristic object of reason position.
Step 204, detects described geographical feature object in described preview image data.
In inventive embodiments, the first characteristics of image of preview image data can be extracted, obtain geographical feature object Second characteristics of image.
When the first characteristics of image and the second Image Feature Matching, confirm geographical feature object to be detected.
In implementing, characteristics of image (including the first characteristics of image, the second characteristics of image) can refer to that phenogram picture is special The information of property, such as, shape facility information, color characteristic information, etc..
Wherein, shape facility information can refer to that the information of the style characteristic of phenogram picture, color characteristic information can refer to table Levy the information of the color characteristics of image.
The method for expressing of shape facility information mainly has two classes, a class to be provincial characteristicss, its whole mainly for image Shape area；Another kind of is contour feature, and it is directed to the external boundary of object.
The method extracting shape facility information includes boundary characteristic value method (external boundary of image), geometry parameter method (image Geometric parameterization process), shape invariance moments method (looking for Image Moment Invariants feature), Fourier's shape description method (fourier transform method) Etc..
Color characteristic information can be to be described by the color characteristic of image or image-region, and it has globality.
The typical method extracting color characteristic information includes color histogram, color set, color moment etc..
Certainly, above-mentioned characteristics of image is intended only as example, when implementing the embodiment of the present invention, can set according to practical situation Putting other characteristics of image, this is not any limitation as by the embodiment of the present invention.It addition, in addition to above-mentioned characteristics of image, art technology Personnel can also use other characteristics of image according to actual needs, and this is not any limitation as by the embodiment of the present invention.
The tolerance of coupling refers to determine target image (such as geographical feature object) and image to be matched by certain standard Similarity between (such as preview image data) feature (such as the first characteristics of image and the second characteristics of image), generally uses certain distance Function or cost function represent, such as, and Euclidean distance, city block distance, Hausdorff distance, coupling oscillograph normalization Correlation function, minimum distance classifier, etc..
Step 205, when described geographical feature object being detected, determines default taking pictures according to described geographical feature object Parameter.
In embodiments of the present invention, parameter of taking pictures can include the following two kinds:
One, focusing area；
When focusing area is for general on shooting, carry out focus operation at this focusing area.
In implementing, geographical feature object target area in preview image can be identified, based on target area Calculate focusing area.
In one example, can search from this target area be positioned at the first side (such as the top) the first pixel, It is positioned at the second pixel of second side (such as bottom) relative with the first side, is positioned at the 3rd pixel of the 3rd side (such as the leftmost side) Point, it is positioned at the 4th pixel of fourth side (such as the rightmost side) relative with the 3rd side.
Connect the first pixel and the second pixel, it is thus achieved that the first line segment, connect the 3rd pixel and the 4th pixel, obtain Obtain the second line segment.
Cross point between first line segment and the second line segment is set to the central point of focusing area.
When the length of the first line segment is more than the length of the second line segment, the length of the first line segment is set to focusing area The length of the length of side.
When the length of the first line segment is less than the length of the second line segment, the length of the second line segment is set to focusing area The length of the length of side.
Certainly, if the length of the length of side arranged exceedes the maximum that mobile terminal is supported, the then maximum can will supported Length as the length of side.
In other examples, it is also possible to focusing area is arranged on other regions of geographical feature object, such as, at geography The top of feature object, in the lower section of geographical feature object, etc., this is not any limitation as by the embodiment of the present invention.
Two, mode of composition.
Mode of composition is usually with the form performance in shooting picture of the representational form structure, logical in preview image data Cross and draw the mode of mode of composition symbol to assist user's composition.
Such as, the nine grids mode of composition shown in Fig. 3 A, picture is divided into nine pieces, four angles on central block Point, arranges body position with the position of any point.
The most such as, the golden section mode of composition shown in Fig. 3 B, picture provides the geometry rationally split Line segment.
Certainly, mode of composition can also include cross mode of composition, triangle mode of composition, three way classification mode of composition, A Font mode of composition, S font mode of composition, V-shaped mode of composition, C-shaped mode of composition, etc..
In one example, Hough transform, principal component analysis, Wavelet transformation, morphological analysis, nerve net can be passed through The shape of the mode identification geographical feature objects such as network, determines mode of composition according to shape.
Such as, corrugated geographical feature object (such as mountains and rivers, river etc.) commonly uses S font mode of composition, isosceles triangle, The conventional symmetrical mode of composition of the geographical feature object (such as palace, tower etc.) of the regular shape such as square, rectangle, etc..
In another example, the type of geographical feature object can be identified, determine mode of composition according to type.
Such as, the geographical feature object of the types such as personage, motion, animal, building commonly uses separable type mode of composition, and big Bridge, highway, the geographical feature object of Field type commonly use X-shaped composition, etc..
Certainly, above-mentioned parameter of taking pictures is intended only as example, when implementing the embodiment of the present invention, can set according to practical situation Put other parameter manipulation of taking pictures, such as, the color gain of white balance, photo specially good effect, etc., the embodiment of the present invention is to this most in addition Limit.It addition, take pictures in addition to parameter except above-mentioned, those skilled in the art can also use other ginseng of taking pictures according to actual needs Number, this is not any limitation as by the embodiment of the present invention.
Step 206, when described first characteristics of image and described second Image Feature Matching, confirms described geography to be detected Feature object.
For focusing area, it may be determined that the interface that photographic head obtains when carrying out taking pictures preview operation, in this interface Focusing area is set.
For example, it is possible at this interface display focusing area, it is also possible to hide focusing area, when user is adjusted, aobvious Show focusing area.
For mode of composition, it may be determined that the interface that photographic head obtains when carrying out taking pictures preview operation, in this interface Display mode of composition, to facilitate user according to mode of composition dollying head, it is thus achieved that preferably picture.
Step 207, when receiving photographing instruction, parameter of taking pictures described in employing carries out photographing operation.
In actual applications, if parameter of taking pictures is not adjusted by user, such as, focusing area is not adjusted, then Can press, user, control of taking pictures, when triggering photographing instruction, use this parameter of taking pictures to carry out photographing operation.
So, in the embodiment of the present invention, by adjusting the technology of the auxiliary shooting operation such as focusing area, prompting mode of composition Means, reach to avoid user to manually select focusing area, manually adjust mode of composition, improve the simplicity of operation, and, carry The high definition taken pictures, the technique effect of aesthetic feeling.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of action group Closing, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because depending on According to the embodiment of the present invention, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should Knowing, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention implements Necessary to example.
Embodiment three
With reference to Fig. 4, it is shown that the structured flowchart of a kind of mobile terminal of the present invention, described mobile terminal 400 has shooting 410, specifically can include such as lower module:
Preview image data acquisition module 421, for gathering the preview image data of described photographic head；
Geographical feature Object Query module 422, is positioned at the geographical special of geographical position residing for described mobile device for inquiry Levy object；
Geographical feature obj ect detection module 423, for detecting described geographical feature object in described preview image data；
Take pictures parameter determination module 424, for when described geographical feature object being detected, according to described geographical feature pair As determining default parameter of taking pictures；
Preview operation module 425, for according to described in photographic head described in parameter call of taking pictures carry out taking pictures preview operation.
In a kind of alternative embodiment of the present invention, with reference to the block diagram of the geographical feature Object Query module shown in Fig. 5, institute State geographical feature Object Query module 422 and can include following submodule further:
Positioning action submodule 4221, for carrying out positioning action to described mobile device, it is thus achieved that geographical position；
Corresponding relation inquiry submodule 4222, be used between geographical position and the geographical feature object that foundation is preset is corresponding Relation, inquires about the geographical feature object that described geographical position is corresponding.
In a kind of alternative embodiment of the present invention, with reference to the block diagram of the geographical feature obj ect detection module shown in Fig. 6, institute State geographical feature obj ect detection module 423 and can include following submodule further:
First image characteristics extraction submodule 4231, for extracting the first characteristics of image of described preview image data；
Second characteristics of image obtains submodule 4232, for obtaining the second characteristics of image of described geographical feature object；
Determine submodule 4233, for when described first characteristics of image is with described second Image Feature Matching, confirming inspection Measure described geographical feature object.
In a kind of alternative embodiment of the present invention, the parameter of taking pictures preset includes focusing area；With reference to the bat shown in Fig. 7 According to a kind of block diagram of parameter determination operation executing module, described in parameter determination module 424 of taking pictures can include following son further Module:
Target area identifies submodule 4241, for identifying described geographical feature object target in described preview image Region；
Focusing area calculating sub module 4242, for calculating focusing area based on described target area.
In a kind of alternative embodiment of the present invention, with reference to the block diagram of the focusing area calculating sub module shown in Fig. 8, described Focusing area calculating sub module 4242 can include following submodule further:
Pixel searches unit 42421, is positioned at the first pixel of the first side, position for searching from described target area The second pixel in second side relative with described first side, it is positioned at the 3rd pixel of the 3rd side, is positioned at and the described 3rd 4th pixel of the 4th side that side is relative；
First connects unit 42422, is used for connecting described first pixel and described second pixel, it is thus achieved that First Line Section；
Second connects unit 42423, is used for connecting described 3rd pixel and described 4th pixel, it is thus achieved that the second line Section；
Central point arranges unit 42424, for being arranged in the cross point between described first line segment and described second line segment Central point for focusing area；
First limit arranges unit 42425, during for being more than the length of described second line segment in the length of described first line segment, The length of described first line segment is set to the length of the length of side of focusing area；
Second limit arranges unit 42426, during for being less than the length of described second line segment in the length of described first line segment, The length of described second line segment is set to the length of the length of side of focusing area.
In a kind of alternative embodiment of the present invention, with reference to a kind of block diagram of the preview operation module shown in Fig. 9, described pre- Operation module 425 of looking at can include following submodule further:
First preview interface obtains submodule 4251, is used for determining that described photographic head obtains when carrying out taking pictures preview operation Interface；
Focusing area arranges submodule 4252, for arranging described focusing area in described interface.
In a kind of alternative embodiment of the present invention, the parameter of taking pictures preset includes mode of composition；With reference to shown in Figure 10 Take pictures the another kind of block diagram of parameter determination module, described in parameter determination 424 of taking pictures can include following submodule further:
Shape recognition submodule 4243, for identifying the shape of described geographical feature object；
First mode of composition determines submodule 4244, for determining mode of composition according to described shape.
In a kind of alternative embodiment of the present invention, with reference to the another kind of frame of the parameter determination module of taking pictures shown in Figure 11 Figure, described in parameter determination module 424 of taking pictures can include following submodule further:
Type identification submodule 4245, for identifying the type of described geographical feature object；
Second mode of composition determines submodule 4246, for determining mode of composition according to described type.
In a kind of alternative embodiment of the present invention, with reference to the another kind of block diagram of the preview operation module shown in Figure 12, institute State preview operation module 425 and can include following submodule further:
Second preview interface determines submodule 4253, is used for determining that described photographic head obtains when carrying out taking pictures preview operation Interface；
Second preview interface determines submodule 4254, for showing described mode of composition in described interface.
On the basis of Fig. 4, alternatively, mobile terminal 400 may also include photo module 406, sees Figure 13.
Photo module 426, for when receiving photographing instruction, parameter of taking pictures described in employing carries out photographing operation.
Mobile terminal 400 is capable of each process that in the embodiment of the method for Fig. 1 to Fig. 3 B, mobile terminal realizes, for keeping away Exempt to repeat, repeat no more here.
So, in the embodiment of the present invention, by obtaining the preview image data that photographic head gathers when preview, inquiry is positioned at The geographical feature object in geographical position residing for mobile device, when this preview image data recognizes geographical feature object, pin This geographical feature object is determined take pictures parameter the technological means of preview operation of taking pictures, owing to geographical feature object has Relative stability, typically will not occur the biggest change in a very long time, therefore, be suitable for these geographical feature objects The parameter taken pictures is the most metastable, by auxiliary operation of taking pictures, has reached the parameter taken pictures that automatic recommendation is suitable for, has kept away Exempt from user to manually select parameter of taking pictures, improve the simplicity of operation, and, improve the technique effect of the quality taken pictures.
Embodiment four
Figure 14 is the block diagram of the mobile terminal of another embodiment of the present invention.Mobile terminal 1400 shown in Figure 14 includes: At least one processor 1401, memorizer 1402, at least one network interface 1404, user interface 1403 and photographic head 1406. Each assembly in mobile terminal 1400 is coupled by bus system 1405.It is understood that bus system 1405 is for real Connection communication between these assemblies existing.Bus system 1405, in addition to including data/address bus, also includes power bus, always controls Line and status signal bus in addition.But for the sake of understanding explanation, in fig. 14 various buses are all designated as bus system 1405.
Wherein, user interface 1403 can include display, keyboard or pointing device (such as, mouse, trace ball (trackball), touch-sensitive plate or touch screen etc..
The memorizer 1402 being appreciated that in the embodiment of the present invention can be volatile memory or non-volatile memories Device, maybe can include volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read only memory (Read-OnlyMemory, ROM), programmable read only memory (ProgrammableROM, PROM), erasable programmable are read-only Memorizer (ErasablePROM, EPROM), Electrically Erasable Read Only Memory (ElectricallyEPROM, EEPROM) Or flash memory.Volatile memory can be random access memory (RandomAccessMemory, RAM), and it is used as outside high Speed caching.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM (StaticRAM, SRAM), dynamic random access memory (DynamicRAM, DRAM), Synchronous Dynamic Random Access Memory (SynchronousDRAM, SDRAM), double data speed synchronous dynamic RAM (DoubleDataRate SDRAM, DDRSDRAM), enhancement mode Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links Dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct rambus random access memory (DirectRambusRAM, DRRAM).The memorizer 1402 of system and method that the embodiment of the present invention describes be intended to include but not It is limited to these and the memorizer of other applicable type any.
In some embodiments, memorizer 1402 stores following element, executable module or data structure, or Their subset of person, or their superset: operating system 14021 and application program 14022.
Wherein, operating system 14021, comprise various system program, such as ccf layer, core library layer, driving layer etc., be used for Realize various basic business and process hardware based task.Application program 14022, comprises various application program, such as matchmaker Body player (MediaPlayer), browser (Browser) etc., be used for realizing various applied business.Realize the embodiment of the present invention The program of method may be embodied in application program 14022.
In embodiments of the present invention, by calling program or the instruction of memorizer 1402 storage, concrete, can be application The program stored in program 14022 or instruction, processor 1401 is for gathering the preview image data of described photographic head；Poll bit Geographical feature object in geographical position residing for described mobile device；Described geographical feature is detected in described preview image data Object；When described geographical feature object being detected, determine default parameter of taking pictures according to described geographical feature object；According to institute State photographic head described in parameter call of taking pictures to carry out taking pictures preview operation.
The method that the invention described above embodiment discloses can apply in processor 1401, or real by processor 1401 Existing.Processor 1401 is probably a kind of IC chip, has the disposal ability of signal.During realizing, said method Each step can be completed by the instruction of the integrated logic circuit of the hardware in processor 1401 or software form.Above-mentioned Processor 1401 can be general processor, digital signal processor (DigitalSignalProcessor, DSP), special collection Become circuit (ApplicationSpecific IntegratedCircuit, ASIC), ready-made programmable gate array (FieldProgrammableGateArray, FPGA) or other PLDs, discrete gate or transistor logic Device, discrete hardware components.Can realize or perform disclosed each method, step and the box in the embodiment of the present invention Figure.The processor etc. that general processor can be microprocessor or this processor can also be any routine.In conjunction with the present invention The step of the method disclosed in embodiment can be embodied directly in hardware decoding processor and perform, or uses decoding processor In hardware and software module combination execution complete.Software module may be located at random access memory, and flash memory, read only memory can In the storage medium that this areas such as program read-only memory or electrically erasable programmable memorizer, depositor are ripe.This storage Medium is positioned at memorizer 1402, and processor 1401 reads the information in memorizer 1402, completes said method in conjunction with its hardware Step.
It is understood that the embodiment of the present invention describe these embodiments can use hardware, software, firmware, middleware, Microcode or a combination thereof realize.Realizing for hardware, processing unit can be implemented in one or more special IC (ApplicationSpecificIntegratedCircuits, ASIC), digital signal processor (DigitalSignalProcessing, DSP), digital signal processing appts (DSPDevice, DSPD), programmable logic device (ProgrammableLogicDevice, PLD), field programmable gate array (Field-ProgrammableGateArray, FPGA), general processor, controller, microcontroller, microprocessor, for performing other electronics list of herein described function In unit or a combination thereof.
Software is realized, can come by performing the module (such as process, function etc.) of function described in the embodiment of the present invention Realize the technology described in the embodiment of the present invention.Software code is storable in performing in memorizer and by processor.Memorizer can Within a processor or to realize outside processor.
Alternatively, processor 1401 is additionally operable to: described mobile device is carried out positioning action, it is thus achieved that geographical position；Foundation Corresponding relation between geographical position and the geographical feature object preset, inquires about the geographical feature pair that described geographical position is corresponding As.
Alternatively, processor 1401 is additionally operable to: extract the first characteristics of image of described preview image data；Obtain describedly Second characteristics of image of reason feature object；When described first characteristics of image and described second Image Feature Matching, confirm detection To described geographical feature object.
Alternatively, the parameter of taking pictures preset includes focusing area；Processor 1401 is additionally operable to: identify described geographical feature pair As the target area in described preview image；Focusing area is calculated based on described target area.
Alternatively, processor 1401 is additionally operable to: searches from described target area and is positioned at the first pixel of the first side, position The second pixel in second side relative with described first side, it is positioned at the 3rd pixel of the 3rd side, is positioned at and the described 3rd 4th pixel of the 4th side that side is relative；Connect described first pixel and described second pixel, it is thus achieved that the first line segment；Even Connect described 3rd pixel and described 4th pixel, it is thus achieved that the second line segment；By described first line segment and described second line segment it Between cross point be set to the central point of focusing area；When the length of described first line segment is more than the length of described second line segment Time, the length of described first line segment is set to the length of the length of side of focusing area；When the length of described first line segment is less than institute When stating the length of the second line segment, the length of described second line segment is set to the length of the length of side of focusing area.
Alternatively, processor 1401 is additionally operable to: determine the interface that described photographic head obtains when carrying out taking pictures preview operation； Described focusing area is set in described interface
Alternatively, the parameter of taking pictures preset includes mode of composition；Processor 1401 is additionally operable to: identify described geographical feature pair The shape of elephant；Mode of composition is determined according to described shape.
Alternatively, the parameter of taking pictures preset includes mode of composition；Processor 1401 is additionally operable to: identify described geographical feature pair The type of elephant；Mode of composition is determined according to described type.
Alternatively, processor 1401 is additionally operable to: determine the interface that described photographic head obtains when carrying out taking pictures preview operation； Described mode of composition is shown in described interface.
Alternatively, processor 1401 is additionally operable to: when receiving photographing instruction, and parameter of taking pictures described in employing carries out the behaviour that takes pictures Make.
Mobile terminal 1400 is capable of each process that in previous embodiment, mobile terminal realizes, for avoiding repeating, this In repeat no more.
So, in the embodiment of the present invention, by obtaining the preview image data that photographic head gathers when preview, inquiry is positioned at The geographical feature object in geographical position residing for mobile device, when this preview image data recognizes geographical feature object, pin This geographical feature object is determined take pictures parameter the technological means of preview operation of taking pictures, owing to geographical feature object has Relative stability, typically will not occur the biggest change in a very long time, therefore, be suitable for these geographical feature objects The parameter taken pictures is the most metastable, by auxiliary operation of taking pictures, has reached the parameter taken pictures that automatic recommendation is suitable for, has kept away Exempt from user to manually select parameter of taking pictures, improve the simplicity of operation, and, improve the technique effect of the quality taken pictures.
Embodiment five
Figure 15 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile end in Figure 15 End 1500 can be mobile phone, panel computer, personal digital assistant (PersonalDigital Assistant, PDA) or vehicle-mounted Computer etc..
Mobile terminal 1500 in Figure 15 includes radio frequency (RadioFrequency, RF) circuit 1510, memorizer 1520, defeated Enter unit 1530, display unit 1540, processor 1560, voicefrequency circuit 1570, WiFi (WirelessFidelity) module 1580, power supply 1590 and photographic head 1511.
Wherein, input block 1530 can be used for receiving numeral or the character information of user's input, and produce and move eventually The user setup of end 1500 and function control relevant signal input.Specifically, in the embodiment of the present invention, this input block 1530 can include contact panel 1531.Contact panel 1531, also referred to as touch screen, can collect user and thereon or neighbouring touch Touch operation (such as user uses any applicable object such as finger, stylus or adnexa operation on contact panel 1531), and Corresponding attachment means is driven according to formula set in advance.Optionally, contact panel 1531 can include touch detecting apparatus and Two parts of touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect the letter that touch operation brings Number, transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into Contact coordinate, then give this processor 1560, and order that processor 1560 sends can be received and performed.Furthermore, it is possible to The polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave are used to realize contact panel 1531.Except contact panel 1531, input block 1530 can also include other input equipments 1532, and other input equipments 1532 can include but not limited to One or many in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc. Kind.
Wherein, display unit 1540 can be used for showing the information inputted by user or the information being supplied to user and movement The various menu interfaces of terminal 1500.Display unit 1540 can include display floater 1541, optionally, can use LCD or have The forms such as machine light emitting diode (OrganicLight-EmittingDiode, OLED) configure display floater 1541.
It should be noted that contact panel 1531 can cover display floater 1541, formed and touch display screen, when this touch display screen Detect thereon or after neighbouring touch operation, send processor 1560 to determine the type of touch event, with post processing Device 1560 provides corresponding visual output according to the type of touch event on touch display screen.
Touch display screen and include Application Program Interface viewing area and conventional control viewing area.This Application Program Interface viewing area And the arrangement mode of this conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can be distinguished two and show Show the arrangement mode in district.This Application Program Interface viewing area is displayed for the interface of application program.Each interface is permissible The interface elements such as the icon and/or the widget desktop control that comprise at least one application program.This Application Program Interface viewing area It can also be the empty interface not comprising any content.This conventional control viewing area is for showing the control that utilization rate is higher, such as, The application icons etc. such as settings button, interface numbering, scroll bar, phone directory icon.
Wherein processor 1560 is the control centre of mobile terminal 1500, utilizes various interface and the whole mobile phone of connection Various piece, be stored in the software program in first memory 1521 and/or module by running or performing, and call and deposit Storage data in second memory 1522, perform the various functions of mobile terminal 1500 and process data, thus to moving eventually End 1500 carries out integral monitoring.Optionally, processor 1560 can include one or more processing unit.
In embodiments of the present invention, by call the software program and/or module stored in this first memory 1521 and/ Or the data in this second memory 1522, processor 1560 is for gathering the preview image data of described photographic head；Poll bit Geographical feature object in geographical position residing for described mobile device；Described geographical feature is detected in described preview image data Object；When described geographical feature object being detected, determine default parameter of taking pictures according to described geographical feature object；According to institute State photographic head described in parameter call of taking pictures to carry out taking pictures preview operation.
Alternatively, processor 1560 is additionally operable to: described mobile device is carried out positioning action, it is thus achieved that geographical position；Foundation Corresponding relation between geographical position and the geographical feature object preset, inquires about the geographical feature pair that described geographical position is corresponding As.
Alternatively, processor 1560 is additionally operable to: extract the first characteristics of image of described preview image data；Obtain describedly Second characteristics of image of reason feature object；When described first characteristics of image and described second Image Feature Matching, confirm detection To described geographical feature object.
Alternatively, the parameter of taking pictures preset includes focusing area；Processor 1560 is additionally operable to: identify described geographical feature pair As the target area in described preview image；Focusing area is calculated based on described target area.
Alternatively, processor 1560 is additionally operable to: searches from described target area and is positioned at the first pixel of the first side, position The second pixel in second side relative with described first side, it is positioned at the 3rd pixel of the 3rd side, is positioned at and the described 3rd 4th pixel of the 4th side that side is relative；Connect described first pixel and described second pixel, it is thus achieved that the first line segment；Even Connect described 3rd pixel and described 4th pixel, it is thus achieved that the second line segment；By described first line segment and described second line segment it Between cross point be set to the central point of focusing area；When the length of described first line segment is more than the length of described second line segment Time, the length of described first line segment is set to the length of the length of side of focusing area；When the length of described first line segment is less than institute When stating the length of the second line segment, the length of described second line segment is set to the length of the length of side of focusing area.
Alternatively, processor 1560 is additionally operable to: determine the interface that described photographic head obtains when carrying out taking pictures preview operation； Described focusing area is set in described interface.
Alternatively, the parameter of taking pictures preset includes mode of composition；Processor 1560 is additionally operable to: identify described geographical feature pair The shape of elephant；Mode of composition is determined according to described shape.
Alternatively, the parameter of taking pictures preset includes mode of composition；Processor 1560 is additionally operable to: identify described geographical feature pair The type of elephant；Mode of composition is determined according to described type.
Alternatively, processor 1560 is additionally operable to: determine the interface that described photographic head obtains when carrying out taking pictures preview operation； Described mode of composition is shown in described interface.
Alternatively, processor 1560 is additionally operable to: when receiving photographing instruction, and parameter of taking pictures described in employing carries out the behaviour that takes pictures Make.
Mobile terminal 1500 is capable of each process that in previous embodiment, mobile terminal realizes, for avoiding repeating, this In repeat no more.
Visible, in the embodiment of the present invention, by obtaining the preview image data that photographic head gathers when preview, inquiry is positioned at The geographical feature object in geographical position residing for mobile device, when this preview image data recognizes geographical feature object, pin This geographical feature object is determined take pictures parameter the technological means of preview operation of taking pictures, owing to geographical feature object has Relative stability, typically will not occur the biggest change in a very long time, therefore, be suitable for these geographical feature objects The parameter taken pictures is the most metastable, by auxiliary operation of taking pictures, has reached the parameter taken pictures that automatic recommendation is suitable for, has kept away Exempt from user to manually select parameter of taking pictures, improve the simplicity of operation, and, improve the technique effect of the quality taken pictures.
Those of ordinary skill in the art are it is to be appreciated that combine that the disclosed embodiments in the embodiment of the present invention describe is each The unit of example and algorithm steps, it is possible to being implemented in combination in of electronic hardware or computer software and electronic hardware.These Function performs with hardware or software mode actually, depends on application-specific and the design constraint of technical scheme.Specialty Technical staff specifically should can be used for using different methods to realize described function to each, but this realization should not Think beyond the scope of this invention.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, the system of foregoing description, The specific works process of device and unit, is referred to the corresponding process in preceding method embodiment, does not repeats them here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, can be passed through other Mode realizes.Such as, device embodiment described above is only schematically, such as, the division of described unit, it is only A kind of logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or Person is desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed is mutual Between coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit or communication link Connect, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme 's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.
If described function is using the form realization of SFU software functional unit and as independent production marketing or use, permissible It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual People's computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention. And aforesaid storage medium includes: USB flash disk, portable hard drive, ROM, RAM, magnetic disc or CD etc. are various can store program code Medium.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.

Claims (20)

1. a method for previewing of taking pictures based on mobile terminal, described mobile terminal has photographic head, it is characterised in that described side Method includes:
Gather the preview image data of described photographic head；
Inquiry is positioned at the geographical feature object in geographical position residing for described mobile device；
Described geographical feature object is detected in described preview image data；
When described geographical feature object being detected, determine default parameter of taking pictures according to described geographical feature object；
Carry out taking pictures preview operation according to described photographic head described in parameter call of taking pictures.
Method the most according to claim 1, it is characterised in that described inquiry is positioned at geographical position residing for described mobile device The step of geographical feature object, including:
Described mobile device is carried out positioning action, it is thus achieved that geographical position；
According to the corresponding relation between geographical position and the geographical feature object preset, inquire about the geography that described geographical position is corresponding Feature object.
Method the most according to claim 1, it is characterised in that described detect described geography in described preview image data The step of feature object, including:
Extract the first characteristics of image of described preview image data；
Obtain the second characteristics of image of described geographical feature object；
When described first characteristics of image and described second Image Feature Matching, confirm described geographical feature object to be detected.
4. according to the method described in claim 1-3, it is characterised in that default parameter of taking pictures includes focusing area；
The described step determining default parameter of taking pictures according to described geographical feature object, including:
Identify described geographical feature object target area in described preview image；
Focusing area is calculated based on described target area.
Method the most according to claim 4, it is characterised in that the described step calculating focusing area based on described target area Suddenly, including:
From described target area, lookup is positioned at the first pixel of the first side, is positioned at second side relative with described first side Second pixel, it is positioned at the 3rd pixel of the 3rd side, is positioned at the 4th pixel of fourth side relative with described 3rd side；
Connect described first pixel and described second pixel, it is thus achieved that the first line segment；
Connect described 3rd pixel and described 4th pixel, it is thus achieved that the second line segment；
Cross point between described first line segment and described second line segment is set to the central point of focusing area；
When the length of described first line segment is more than the length of described second line segment, it is right the length of described first line segment to be set to The length of the length of side in burnt region；
When the length of described first line segment is less than the length of described second line segment, it is right the length of described second line segment to be set to The length of the length of side in burnt region.
Method the most according to claim 4, it is characterised in that photographic head described in parameter call of taking pictures described in described basis enters The step of capable preview operation of taking pictures includes:
Determine the interface that described photographic head obtains when carrying out taking pictures preview operation；
Described focusing area is set in described interface.
Method the most according to claim 1, it is characterised in that default parameter of taking pictures includes mode of composition；
The described step determining default parameter of taking pictures according to described geographical feature object, including:
Identify the shape of described geographical feature object；
Mode of composition is determined according to described shape.
Method the most according to claim 1, it is characterised in that default parameter of taking pictures includes mode of composition；
The described step determining default parameter of taking pictures according to described geographical feature object, including:
Identify the type of described geographical feature object；
Mode of composition is determined according to described type.
9. according to the method described in claim 7 or 8, it is characterised in that take pictures described in described basis and image described in parameter call Head carry out the taking pictures step of preview operation includes:
Determine the interface that described photographic head obtains when carrying out taking pictures preview operation；
Described mode of composition is shown in described interface.
10. according to the method described in claim 1 or 2 or 3 or 5 or 6 or 7 or 8, it is characterised in that also include:
When receiving photographing instruction, parameter of taking pictures described in employing carries out photographing operation.
11. 1 kinds of mobile terminals, described mobile terminal has photographic head, it is characterised in that described terminal includes:
Preview image data acquisition module, for gathering the preview image data of described photographic head；
Geographical feature Object Query module, is positioned at the geographical feature object in geographical position residing for described mobile device for inquiry；
Geographical feature obj ect detection module, for detecting described geographical feature object in described preview image data；
Take pictures parameter determination module, for when described geographical feature object being detected, determine according to described geographical feature object The parameter of taking pictures preset；
Preview operation module, for according to described in photographic head described in parameter call of taking pictures carry out taking pictures preview operation.
12. mobile terminals according to claim 11, it is characterised in that described geographical feature Object Query module includes:
Positioning action submodule, for carrying out positioning action to described mobile device, it is thus achieved that geographical position；
Corresponding relation inquiry submodule, for according to the corresponding relation between geographical position and the geographical feature object preset, looking into Ask the geographical feature object that described geographical position is corresponding.
13. mobile terminals according to claim 11, it is characterised in that described geographical feature obj ect detection module includes:
First image characteristics extraction submodule, for extracting the first characteristics of image of described preview image data；
Second characteristics of image obtains submodule, for obtaining the second characteristics of image of described geographical feature object；
Determining submodule, for when described first characteristics of image is with described second Image Feature Matching, confirmation detects described Geographical feature object.
14. according to the mobile terminal described in any one of claim 11-13, it is characterised in that it is right that default parameter of taking pictures includes Burnt region；Described parameter determination module of taking pictures includes:
Target area identifies submodule, for identifying described geographical feature object target area in described preview image；
Focusing area calculating sub module, for calculating focusing area based on described target area.
15. mobile terminals according to claim 14, it is characterised in that described focusing area calculating sub module includes:
Pixel searches unit, is positioned at the first pixel of the first side for lookup from described target area, is positioned at described Second pixel of the second side that the first side is relative, be positioned at the 3rd side the 3rd pixel, be positioned at relative with described 3rd side 4th pixel of the 4th side；
First connects unit, is used for connecting described first pixel and described second pixel, it is thus achieved that the first line segment；
Second connects unit, is used for connecting described 3rd pixel and described 4th pixel, it is thus achieved that the second line segment；
Central point arranges unit, for the cross point between described first line segment and described second line segment is set to focusing area Central point；
First limit arranges unit, for when the length of described first line segment is more than the length of described second line segment, by described the The length of one line segment is set to the length of the length of side of focusing area；
Second limit arranges unit, for when the length of described first line segment is less than the length of described second line segment, by described the The length of two line segments is set to the length of the length of side of focusing area.
16. mobile terminals according to claim 14, it is characterised in that described preview operation module includes:
First preview interface obtains submodule, for determining the interface that described photographic head obtains when carrying out taking pictures preview operation；
Focusing area arranges submodule, for arranging described focusing area in described interface.
17. mobile terminals according to claim 11, it is characterised in that default parameter of taking pictures includes mode of composition；Institute State parameter determination module of taking pictures to include:
Shape recognition submodule, for identifying the shape of described geographical feature object；
First mode of composition determines submodule, for determining mode of composition according to described shape.
18. mobile terminals according to claim 11, it is characterised in that default parameter of taking pictures includes mode of composition；Institute State parameter determination module of taking pictures to include:
Type identification submodule, for identifying the type of described geographical feature object；
Second mode of composition determines submodule, for determining mode of composition according to described type.
19. according to the mobile terminal described in claim 17 or 18, it is characterised in that described preview operation module includes:
Second preview interface determines submodule, for determining the interface that described photographic head obtains when carrying out taking pictures preview operation；
Mode of composition display sub-module, for showing described mode of composition in described interface.
20. according to the mobile terminal described in claim 11 or 12 or 13 or 15 or 16 or 17 or 18, it is characterised in that also wrap Include:
Photo module, for when receiving photographing instruction, parameter of taking pictures described in employing carries out photographing operation.
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