CN102045496B - Digital camera capable of detecting name of shot landmark and method - Google Patents
Digital camera capable of detecting name of shot landmark and method Download PDFInfo
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- CN102045496B CN102045496B CN200910205803A CN200910205803A CN102045496B CN 102045496 B CN102045496 B CN 102045496B CN 200910205803 A CN200910205803 A CN 200910205803A CN 200910205803 A CN200910205803 A CN 200910205803A CN 102045496 B CN102045496 B CN 102045496B
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Abstract
The invention discloses a digital camera capable of detecting the name of a shot landmark and a method. The digital camera is provided with an environment condition capturing device, a liquid crystal display unit and a graph and information diagram, wherein the graph and information diagram comprises a plurality of landmark names and a plurality of landmark coordinates corresponding to the landmark names. The method for detecting the name of the shot landmark comprises the following steps of: capturing an image and obtaining a focusing distance, wherein the image at least comprises a shot landmark; capturing an environment condition, wherein the environment condition comprises shot information and searching information; obtaining a searching focus section according to the environment condition and the focusing information; and searching the focus section and the shot information from the graph and information diagram for consulting so as to obtain output coordinates of the shot landmarks and the landmark names corresponding to the output coordinates.
Description
Technical field
The present invention is about a kind of digital camera, particularly a kind of detect the digital camera of being taken the photograph the terrestrial reference title with and method.
Background technology
Digital camera has become the main flow camera head of photographic images now, and its mode of operation is simple, is convenient to the user and writes down the dribs and drabs in the life.Do not need the egative film cost owing to use digital camera to take, the user can take a large amount of images basically heartily.Yet during the photograph of before the user views and admires again, taking, but may forget or be difficult to remember shooting landmark locations and the title in the photograph, be difficult to problems such as photo collating sorts and cause.
Therefore; No. 6657661 patent of the U.S. proposes global positioning system (GPS; Global PositionSystem) receiver combines with digital camera, the longitude and latitude that this coupling apparatus obtains according to global positioning system when taking and when taking the information of camera position write in the view data.In addition, in the captured digital picture that goes out of digital camera, except the image self-information, the out of Memory in the time of can taking by exchangeable image file format (EXIF, Exchangeable Image File Format) addition record in addition is in image.This kind exchangeable image file format, the shooting time during photographic images, f-number, time for exposure just can be recorded in the image, and also can be recorded in the image by the information such as longitude and latitude that aforementioned global positioning system obtained.
Yet the positional information that global positioning system can be learnt when taking is a camera position coordinate; Even write down the information of taking the position in the image, still have the problem that the user can't learn the title of being taken the photograph terrestrial reference, even; It is not identical with the camera position being taken the photograph terrestrial reference sometimes; Therefore, even if write down the data of camera position, also non-ly taken the photograph terrestrial reference.For example municipal government takes pictures facing to the Taibei 101 in the Taibei, and can't in photograph, write down captured terrestrial reference be " Taibei 101 ", and what write down on the contrary is Taibei municipal government.
Summary of the invention
In view of above problem, the invention reside in provides a kind of digital camera and method thereof of being taken the photograph the terrestrial reference title that detect, and uses addressing the above problem.
The disclosed a kind of digital camera of being taken the photograph the terrestrial reference title that detects of the present invention; In order to a scene is taken an image; Digital camera comprises: an environmental condition acquisition device; One photographing information of one environmental condition of output digital camera, photographing information comprise that one takes coordinate, a shooting direction and a shooting angle; One storage element stores a figure money table, and figure money table comprises a plurality of terrestrial reference titles and a plurality of terrestrial reference coordinates corresponding with the terrestrial reference title, and each terrestrial reference coordinate comprises a terrestrial reference longitude, a terrestrial reference latitude and a terrestrial reference height above sea level; One capturing images assembly is exported a view data; One optical module group, in order to the search information of control chart as acquisition component reception scene, search information comprises a level search angle and a vertical angle of searching; And a controller, according to the present invention, when controller activated; Control the optical module group and receive view data by the capturing images assembly; Controller system acquisition environmental condition and a pair of defocus distance, and the burnt section of foundation focusing distance setting one search are consulted corresponding at least one terrestrial reference title for burnt section with environmental condition, search information and search again in figure money table; Controller is exported the terrestrial reference title of being found again
Its middle controller is with environmental condition, search information and search burnt section and in figure money table, consult the terrestrial reference title that corresponding at least one terrestrial reference title and output found and comprise: calculate a shooting axis based on taking direction with shooting angle; Obtain a shooting awl based on taking axis, level search angle and vertical search angle; Based on searching burnt section, and taking awl definition one and search the awl section; To search the awl section and to take coordinate and consult output coordinate in figure money table; And the terrestrial reference title of consulting corresponding output coordinate in figure money table,
Wherein to search the awl section and to take coordinate and consult output coordinate in figure money table and comprise: step a, consult in figure money table and be positioned at least one terrestrial reference coordinate of searching awl section to search awl section and photographing information; Step b, be positioned at when searching the awl section when only finding single terrestrial reference coordinate, the terrestrial reference coordinate of being found with quilt is as output coordinate; Step c, be positioned at when searching the awl section when finding a plurality of terrestrial reference coordinates, according to each a little terrestrial reference coordinate of being found, focusing from a little terrestrial reference coordinates of being found a bit, select output coordinate with photographing information; And steps d, do not find any terrestrial reference coordinate time when searching in the awl section; Carry out following step: according to searching burnt section and searching the awl section and set another search awl section; And get back to step a, search the awl section with another and consult the terrestrial reference coordinate that is positioned at another search awl section in figure money table with photographing information.And digital camera also comprises a liquid crystal display, in order to show the terrestrial reference title of being found.
According to one embodiment of the invention, controller leaves control optical module group according to focusing.The optical module group of digital camera comprises a lens assembly and an iris apparatus, and the capturing images assembly comprises a Charged Coupled Device.
In addition, the environmental condition acquisition device can comprise: a global positioning system assembly, and the shooting coordinate of output digital camera is taken coordinate and is comprised a shooting longitude, a shooting latitude and a shooting height above sea level; One compass, the shooting direction of output digital camera; One angle acquisition device, the shooting angle of output digital camera.
The method of terrestrial reference title is taken the photograph in the disclosed detection of the present invention, is applicable to digital camera, and digital camera has environmental condition acquisition device, liquid crystal display and figure money table.The a plurality of terrestrial reference coordinates that comprise a plurality of terrestrial reference titles and corresponding these terrestrial reference titles in the figure money table.It detects the method taken the photograph the terrestrial reference title and includes the following step: acquisition image, and obtain focusing from (focusing distance), and wherein image comprises that at least a quilt takes the photograph terrestrial reference; The acquisition environmental condition, wherein environmental condition comprises photographing information and search information, and photographing information comprises that one takes direction, a shooting angle and a shooting coordinate, and search information comprises a level search angle and a vertical angle of searching; Leave according to environmental condition and focusing, obtain searching burnt section; And must be in scheming the money table to consult to being taken the photograph the output coordinate of terrestrial reference to search burnt section and photographing information; And the terrestrial reference title of corresponding output coordinate, wherein with search burnt section and photographing information in figure money table consult and the step of terrestrial reference title of a corresponding output coordinate of being taken the photograph terrestrial reference and corresponding output coordinate can comprise: calculate a shooting axis based on taking direction with shooting angle; Obtain a shooting awl based on taking axis, level search angle and vertical search angle; Based on searching burnt section and taking awl definition one and search the awl section; To search the awl section and to take coordinate and consult output coordinate in figure money table; And the terrestrial reference title of consulting corresponding output terrestrial reference in figure money table, wherein can comprise: step a, consult in figure money table and be positioned at least one terrestrial reference coordinate of searching awl section to search awl section and photographing information to search the awl section and to take the step that coordinate consults output coordinate in figure money table; Step b, be positioned at when searching the awl section when only finding single terrestrial reference coordinate, the terrestrial reference coordinate of being found with quilt is as output coordinate; Step c, be positioned at when searching the awl section, according to each terrestrial reference coordinate of being found, take burnt long, focusing from being selected output coordinate in the terrestrial reference coordinate of finding with photographing information when finding a plurality of terrestrial reference coordinates; And steps d, do not find any terrestrial reference coordinate time when searching in the awl section, carry out following step: according to searching burnt section and searching the awl section and set another and search the awl section; And get back to step a, search the awl section with another and consult the terrestrial reference coordinate that is positioned at another search awl section in figure money table with photographing information.
According to one embodiment of the invention; According to each by terrestrial reference coordinate of being found, take burnt long, focusing from being comprised by the step of selected output coordinate in the terrestrial reference coordinate of finding with photographing information: when focusing when equaling infinity, carry out following step: calculate respectively by taking coordinate toward each the formed vector of terrestrial reference coordinate direction found and a horizontal sextant angle of taking direction; Calculate respectively by taking coordinate toward each the formed vector of terrestrial reference coordinate direction found and a vertical angle of taking direction; A terrestrial reference angle of calculating pairing horizontal sextant angle of each terrestrial reference coordinate and vertical angle with; And with the terrestrial reference angle of minimum and pairing terrestrial reference coordinate as output coordinate; And when focusing when being not equal to infinity, carry out following step: calculate each the terrestrial reference coordinate found and a ground subject distance of taking coordinate; And with the pairing terrestrial reference coordinate of the shortest ground subject distance as output coordinate.
According to another embodiment of the present invention; Leave with photographing information and can comprise in addition according to each terrestrial reference coordinate of being found, the burnt length of shooting, focusing: be shown in the pairing terrestrial reference title of terrestrial reference coordinate on the liquid crystal display, select the terrestrial reference title of an appointment for the user in the step of being selected output coordinate in the terrestrial reference coordinate of finding; And receive selected order, the pairing terrestrial reference coordinate of the terrestrial reference title of appointment as output coordinate.
About feature of the present invention, the real work and effect, existing conjunction with figs. is described in detail as follows as most preferred embodiment.
Above explanation about description of contents of the present invention and following execution mode in order to demonstration with explain spirit of the present invention and principle, and claim scope of the present invention explanation further is provided.
Description of drawings
Fig. 1 is the configuration diagram according to digital camera of the present invention;
Fig. 2 A is for take top view according to an embodiment of the invention;
Fig. 2 B is for take end view according to an embodiment of the invention;
Fig. 3 is a sketch map of taking awl according to an embodiment of the invention;
Fig. 4 is for detect the schematic flow sheet of the method for being taken the photograph the terrestrial reference title according to an embodiment of the invention;
Fig. 5 is the schematic flow sheet of step S70 according to an embodiment of the invention;
Fig. 6 is for take axis and the sketch map of taking the relation of boring according to an embodiment of the invention;
Fig. 7 is the schematic flow sheet of step S74 according to an embodiment of the invention;
Fig. 8 A is the schematic flow sheet of first embodiment of step S77 according to an embodiment of the invention; And
Fig. 8 B is the schematic flow sheet of second embodiment of step S77 according to an embodiment of the invention.
Wherein, Reference numeral:
100 digital still cameras, 101 environment acquisition devices
102 global positioning system assemblies (GPS), 104 compass
106 angle acquisition devices, 108 liquid crystal displays, 110 controllers
112 optical module groups, 1122 lens assemblies, 1124 iris apparatus
114 capturing images assemblies, 1142 Charged Coupled Devices (CCD)
116 storage elements, 1162 figure money tables
150 take axis 152 takes awl
154,154a, 154b, 154c, 154d search the awl section
156 terrestrial reference coordinates 170 are taken direction
174 focusings of 172 shooting angle are left
176,176 ' searches burnt section 180 levels searches angle
182 vertical angle 184a, the 184b horizontal extent limiting faces of searching
186a, 186b vertical range limit face 200 subjects
Embodiment
Below the narration about detailed features of the present invention and advantage; Its content is enough to make any those skilled in the art to understand technology contents of the present invention and implements according to this; And according to the disclosed content of this specification, claim and accompanying drawing, any those skilled in the art can understand purpose and the advantage that the present invention is correlated with easily.
The present invention provides a kind of digital camera of being taken the photograph the terrestrial reference title that detects, and please with reference to Fig. 1, it is the configuration diagram according to digital camera of the present invention.Digital camera 100 comprises a controller 110, an environment acquisition device 101, a liquid crystal display 108, an optical module group 112, a capturing images assembly 114 and a storage element 116, and wherein environment acquisition device 101 comprises a global positioning system assembly 102, a compass 104 and an angle acquisition device 106.According to the present invention, wherein optical module group 112 can comprise a lens assembly 1122 and an iris apparatus 1124, can comprise a Charged Coupled Device (CCD, Charge-coupled Device) 1142 again in the capturing images assembly 114.Light by scene reflected gets into capturing images assembly 114 via lens assembly 1122 and iris apparatus 1124, and is recorded in storage element 116.
According to the present invention, by the assembly that digital camera 100 is comprised, controller 110 can learn and the information during records photographing in image.Global positioning system assembly 102 can comprise antenna and GPS receiver, can receive gps satellite and transmit, to obtain necessary locating information.Global positioning system assembly 102 is exported and is represented one of digital camera 100 positions to take coordinate, takes to comprise a shooting longitude, a shooting latitude and a shooting height above sea level in the coordinate.
Please with reference to Fig. 2 A, it is for take top view according to an embodiment of the invention.One of compass 104 output digital cameras 100 are taken direction 170, and this takes direction 170 and serves as reasons digital camera 100 toward the formed vector of a subject 200 directions and by the angle of digital still camera 100 toward the positive north.Take the image of the scene that direction 170 can influence can capture by digital camera 100.And compass 104 can be electronic compass, refers to that northern device or other can make controller 110 learn the device of above-mentioned shooting direction 170.
Please with reference to Fig. 2 B, it is for take end view according to an embodiment of the invention.One shooting angle 172 of angle acquisition device 106 output digital cameras 100.Digital camera 100 was toward formed vector of subject 200 directions and horizontal angles when shooting angle 172 was shooting.The image of the scene that shooting angle 172 can influence can be captured by digital camera 100.If overlook mode when being lower than the horizontal line direction and taking with one in addition, then can negative number representation shooting angle 172 and subsequent calculations is provided.
During photographic images, the user can take burnt long through controller 110 adjustment.When focusing, controller 110 moving lens devices 1122 to appointment focusing is from 174, and adjustment iris apparatus 1124.Capturing images assembly 114 converts the signal of telecommunication of digital picture to corresponding to optical module group 112 and the image frame of current scene.Be sent to storage element 116 to the picture signal that capturing images assembly 114 is produced via controller 110.
In the storage element 116 in the digital camera 100 of the present invention, comprise a figure money table 1162.The relevant information that comprises a plurality of terrestrial references in the figure money table 1162.Wherein be designated as building or natural thing that the somewhere has unique geographical characteristic, visitor or other common people can be with the aid of pictures and recognize own to where.The for example Taibei 101, circle mountain grand hotel and Yushan main peak, perhaps, for example Tokyo Tower, Singapore's fish tail lion statue and Rome, ITA arena.About landmark information that the present invention was suitable for not restrictedly target position or kind, also can be in the figure money table 1162 according to area or terrestrial reference qualitative classification.In figure money table 1162, each terrestrial reference all has record a terrestrial reference title and a terrestrial reference coordinate corresponding with it, and the terrestrial reference coordinate comprises a terrestrial reference longitude, a terrestrial reference latitude and a terrestrial reference height above sea level (or claiming the terrestrial reference height above sea level).
When the controller 110 in the disclosed digital camera 100 of the present invention activated, may command optical module group 112 also received view data by capturing images assembly 114.Controller 110 also can capture information needed by above-mentioned each assembly, detects and is taken the photograph the terrestrial reference title.Controller 110 acquisition one environmental conditions and focusing leave 174, and set one according to focusing from 174 and search burnt section 176.Wherein environmental condition can comprise a photographing information and a search information; Photographing information can comprise above-mentioned shooting direction 170, shooting angle 172 and take coordinate; Search information then can comprise a level search angle and a vertical angle of searching.Controller 110 is consulted corresponding at least one terrestrial reference title with the burnt section 176 of above-mentioned shooting direction, shooting angle 172, level angle, vertical angle, shooting coordinate and search again in figure money table 1162, and exports the terrestrial reference title of being found.About detecting the method for being taken the photograph the terrestrial reference title, be specified in down.
Please with reference to Fig. 4, it is for detect the schematic flow sheet of the method for being taken the photograph the terrestrial reference title according to an embodiment of the invention.From Fig. 4, can see and know, detect the method for being taken the photograph the terrestrial reference title and comprise step S40: capture an image, and the acquisition focusing left; Step S50: acquisition environmental condition; Step S60: leave according to environmental condition and focusing, obtain to search burnt section; Step S70: get a corresponding output coordinate of being taken the photograph terrestrial reference in scheming the money table to consult to search burnt section and photographing information, and the terrestrial reference title of corresponding output coordinate.
Step S60 calculates and obtains searching burnt section 176 according to environmental condition and focusing from 174, the search area of the burnt section 176 of search wherein when setting the terrestrial reference of searching in the image that is captured.Mode according to focusing obtains searching burnt section 176 from 174 calculating is explained as follows.First kind of mode be with focusing from 174 being benchmark, focusing is increased or reduces a distance to a declared goal as searching burnt section 176 from 174.Please be simultaneously with reference to Fig. 2 B.For example, when focusing from 174 when being 5 meters, and distance to a declared goal is 3 meters, then searching burnt section 176, can be decided to be with digital still camera 100 be starting point, the length of the scope of locating from 2 meters (5-3) to 8 meters (5+3).Or only increase does not reduce this distance to a declared goal, i.e. from 5 meters to 8 meters.Certainly this kind added and subtracted the mode of distance to a declared goal; The also visual focusing of the numerical value of its distance to a declared goal changes from 174, for example, if work as focusing very in short-term from 174; Its distance to a declared goal that increases, subtracts is shorter relatively, and focusing is longer relatively from 174 (like infinity) then increases and decreases when longer distance to a declared goal.
In addition, be that mode that benchmark specify to be searched burnt section 176 also can be made as the horizontal range of 200 of digital camera 100 and subjects and searches Jiao sections 176 with focusing from 174.When with the horizontal range of 200 of digital camera 100 and subjects when searching burnt section 176 ', can focusing can go out to search burnt section 176 ' according to computes with shooting angle 172 from 174:
Search burnt section=focusing from * Cos (shooting angle)
Above according to focusing from 174 to search burnt section 176 ' mode, applicable to focusing from 174 when being a particular value.And can adopt another kind of mode during for infinity from 174 when focusing, meaning can be in digital camera 100 in a directly preset length as search Jiao sections 176.As the preset length of searching burnt section 176 can digital camera 100 hardware capabilities as basis of design.That is to say that the controller 110 of simulated digital camera 100 is when searching, the search area that the time that spends with controller 110 is no more than 0.5 second defines aforementioned pre-set length.Thus, the operational capability that each range size of searching just can controlled device 110 and the influence of storage element 116 capacity.The hardware capabilities of digital camera 100 is stronger, and each scope of searching just can heal greatly, and the burnt section 176 of the search of corresponding search area also can heal big.
Then step S70 " with search burnt section and photographing information in figure money table consult and a corresponding output coordinate of being taken the photograph terrestrial reference; and the terrestrial reference title of corresponding output coordinate " be by photographing information with search burnt section 176 calculate digital camera 100 photographic images at that time institute can capture the scene scope (wherein have and taken the photograph terrestrial reference) of image, in scheming money table 1162, consult the terrestrial reference coordinate that is positioned at this scene scope and the terrestrial reference title of corresponding output coordinate again.The above-mentioned scene scope that can capture image is one to be the square awl on summit with digital camera 100, and being referred to herein as is one to take awl.Please be simultaneously with reference to Fig. 3, it is the sketch map based on the shooting awl of one embodiment of the invention.From Fig. 3, can see and know, extend one with digital camera 100 toward the direction of subject 200 and take axis 150.To take axis 150 is the center, and the level when taking in conjunction with digital camera 100 is searched angle and the synthetic awl 152 of taking of vertical search angle.Can be divided into a plurality of search awl section 154a, 154b, 154c, 154d and take awl 152.Wherein each is searched awl section 154 and is aforesaid search area.Then be positioned at the terrestrial reference coordinate 156 of taking awl 152 to search burnt section 176, to take coordinate and compare, to search with the terrestrial reference coordinate 156 in the figure money storehouse.Export the terrestrial reference title of output coordinates and corresponding output coordinate at last according to the terrestrial reference coordinate that is searched 156.The execution details that step S70 is detailed is specified in down.
Please with reference to Fig. 5, it is the schematic flow sheet of step S70 according to an embodiment of the invention.Can know by Fig. 5, with search burnt section and photographing information in figure money table consult and the step of an output coordinate comprises: step S71: calculate the shooting axis based on taking direction and shooting angle; Step S72: obtain to take awl based on taking axis, level search angle and vertical search angle; Step S73: based on searching burnt section, and taking the awl definition and search the awl section; Step S74: to search the awl section and to take coordinate and consult output coordinate in figure money table; And step S100: in scheming the terrestrial reference title that the money table is consulted corresponding output coordinate.
Step S71 arranges in pairs or groups with shooting direction among Fig. 2 A 170 and the shooting angle 172 among Fig. 2 B and calculates the shooting axis 150 among Fig. 3.Taking axis 150 is that the shooting coordinate that is belonged to by digital camera 100 is an initial point, toward the formed vector of subject 200 directions.And this takes shooting that axis 150 is the representative scope that scene institute can be captured when taking and bores 152 central axis.
Step S72 searches angle according to shooting axis 150, level must take awl 152 with vertical search angle.Please refer to Fig. 6, Fig. 6 is for take axis and the sketch map of taking the relation of boring according to an embodiment of the invention.To take axis 150 is that angle 180 meeting formation two horizontal extent limiting faces 184a and 184b are searched toward horizontal direction expansion level in the center.And take axis 150 is that the center can form two vertical range limit face 186a and 186b toward the vertical angle 182 of searching of vertical direction expansion.
Visual angle when wherein level search angle 180 promptly is digital camera 100 shootings with vertical search angle 182, this visual angle and the horizontal plate width of cloth (L that takes Jiao long (f), photosensory assembly
h) and the vertical plate width of cloth (L
v) relevant.The method that obtains the visual angle is narrated as follows.
Take the distance between optic center point to the photosensory assembly that burnt length (f) is camera lens.
The horizontal plate width of cloth (L
h) be the left and right sides width of photosensory assembly.
The vertical plate width of cloth (L
v) be the height up and down of photosensory assembly.
By f and L
hThe calculated level visual angle can be with reference to following formula:
Tan (θ
h/ 2)=(L
h/ 2)/f (formula 1)
θ
h=2*tan
-1((L
h/ 2)/f) (formula 2)
Tan (θ
v/ 2)=(L
v)/2)/f (formula 3)
θ
v=2*tan
-1((L
v/ 2)/f) (formula 4)
θ wherein
hRepresent the horizontal view angle, θ
vRepresent the vertical angle of view.Wushu 1 is done the transposition computing just can obtain formula 2, the view angle theta of formula 2
hCan corresponding level search angle; Wushu 3 is done the transposition computing just can obtain formula 4, the view angle theta of formula 4
vJust can the corresponding vertical angle 182 of searching.
After the level that obtains is searched angle 180 and vertical searchs angle 182, step S72 again take axis 150 with combine calculating and obtain shooting and bore 152.
Step S73 defines according to the shooting awl 152 of searching burnt section 176 and step S72 and searches awl section 154, can rake out cursor position 156 one by one so that controller 110 to be provided.Please refer again to Fig. 3.In the present embodiment, take awl 152 and be cut to a plurality of search awl section 154a that wait lengthwise according to the length of searching burnt section 176,154b, 154c, 154d is in order to consult figure money table 1162 to search terrestrial reference coordinate 156 in regular turn in each searches awl section 154.Yet do not limit the methods that shooting awl 152 are divided into search awl section 154 based on the present invention, respectively searching the lengthwise of boring section 154 can be unequal.And the order that when searching terrestrial reference coordinate 156, does not also limit the search awl section 154 of being searched is 154a, 154b, and 154c, 154d also can be other searching sequence, 154a for example, 154c, 154b, 154d.
Step S74 according to search awl section 154 with take coordinate make search required scope in regular turn after, consult whether to have in the figure money table 1162 and be positioned at the terrestrial reference coordinate 156 of searching awl section 154.Each is searched awl section 154 and can be searched in regular turn, up to finding at least one terrestrial reference coordinate 156 with till as output coordinate.Then and consult figure money table 1162, export the terrestrial reference title of corresponding output coordinate.
Search method of seeking terrestrial reference coordinate 156 in the awl section 154 and please refer to Fig. 7, it is the schematic flow sheet of step S74 according to an embodiment of the invention at each.Can know that by Fig. 7 search the method for seeking terrestrial reference coordinate 156 in the awl section 154 comprises step S75 at each: consult in figure money table and be positioned at least one terrestrial reference coordinate of searching awl section and (also can be described as step a) to search awl section and photographing information; Step S791: judged whether to find any terrestrial reference coordinate; Step S792: judge whether to find single terrestrial reference coordinate; Step S76: the terrestrial reference coordinate to be found (also can be described as step b) as output coordinate; Step S77: (also can be described as step c) from the quilt terrestrial reference coordinate of finding, selecting output coordinate with photographing information according to each terrestrial reference coordinate of being found, focusing; Step S781: according to searching burnt section and searching the awl section and set another search awl section; And step S782: get back to step 75 and (be step a), search the awl section with another and carry out again.
Step S75 is based on photographing information and search awl section 154, and whether in figure money table 1162, consult has terrestrial reference coordinate 156 to fall within the search awl section 154.Please consult Fig. 3 again, aforementioned shooting awl 152 is bored section 154 taking coordinate as the relative scope that initial point defined with search, cooperates the photographs coordinate to obtain respectively search awl section 154 actual coordinate ranges when searching again.After obtaining searching the scope of awl section 154 authentic representatives, search based on the landmark locations 156 of each terrestrial reference in the figure money table 1162.Represent with longitude and latitude and height above sea level all that though take coordinate and terrestrial reference coordinate 156 again can convert into two places longitude and latitude at interval with rice or kilometer during computed range be the actual range of unit.
Judgement through step S791 and step S792; When finding terrestrial reference coordinate 156 in the present search awl section 154 and only finding a unique terrestrial reference coordinate 156, step S76 directly with this terrestrial reference coordinate 156 of in figure money table 1162, finding as output coordinate.Just can provide a terrestrial reference title to write the usefulness of image file in follow-up terrestrial reference title of consulting out corresponding output coordinate with this output coordinate.
And when searching when finding a plurality of terrestrial reference coordinate 156 in the awl section 154 at one; Calculate with photographing information according to the terrestrial reference coordinate 156 that each is queried in figure money table 1162 in step S77, from a plurality of terrestrial reference coordinates 156 of finding, to select one as the output terrestrial reference.About how from a plurality of terrestrial reference coordinates 156 selected one please hold the back as output ground calibration method and detail.
If have no terrestrial reference coordinate 156 to be arranged in present search awl section 154, (also can be described as step d), it is divided into S781 and S782 two steps again then to carry out step 78.At first step S781 sets another new search awl section 154 according to the search awl section 154 in searching burnt section 176 and using.New search awl section 154 can be but not limit to be to be adjacent to search awl section 154 originally and to search awl section 154 apart from far away one of digital camera 100.
After search that setting the makes new advances awl section 154, step S782 cooperates with new search awl section 154 and takes coordinates, consults in figure money table 1162 more whether to have terrestrial reference coordinate 156 to fall within a new search awl section 154(be that aforementioned another searched awl section 154) in.Method is progressively searched each and is searched awl section 154 thus, just can find out at least one and be positioned at the terrestrial reference coordinate 156 of taking awl 152.Aforementioned according to search at present another mode of searching awl section 154 of awl section 154 definition can adopt search relatively at present awl section 154 the awl section of (putting the machine position) far away apart from numerical digit search awl section 154 as another, also can adopt and search awl section 154 nearer awl sections relatively at present and search awl section 154 as another.
When in same search awl section 154, finding more than one terrestrial reference coordinate 156 at said process, a selected terrestrial reference coordinate 156 as the method for output coordinate please with reference to Fig. 8 A and Fig. 8 B.Fig. 8 A and Fig. 8 B are respectively first embodiment of step S87 and the schematic flow sheet of second embodiment according to an embodiment of the invention.Shown in Fig. 8 A, at first step S90 judges whether focusing equals infinity from 174.When focusing from 174 when be not infinity, the method for selected output coordinate can comprise step S95: a ground subject distance that calculates each terrestrial reference coordinate of being found and shooting coordinate; And step S96: with the pairing terrestrial reference coordinate of the shortest ground subject distance as output coordinate.And when focusing from 174 when be infinity, the method for selected output coordinate can comprise step S91: calculate respectively by taking coordinate toward the horizontal sextant angle of each formed vector of terrestrial reference coordinate direction of being found with the shooting direction; Step S92: calculate respectively by taking coordinate toward each the formed vector of terrestrial reference coordinate direction found and a vertical angle of taking direction; Step S93: a terrestrial reference angle of calculating pairing horizontal sextant angle of each terrestrial reference coordinate and vertical angle with; And step S94: with the terrestrial reference angle of minimum and pairing terrestrial reference coordinate as output coordinate.
If it is not infinity that focusing leaves 174, the terrestrial reference potential range digital camera 100 that then is photographed is nearer.Step S95 is taking coordinate and terrestrial reference coordinate 156 that each is queried to the ground subject distance between Pythagorean theorem calculating digital camera 100 and the terrestrial reference coordinate 156 that each is queried to.According to the ground subject distance of trying to achieve, step S96 selects has the terrestrial reference coordinate 156 of short ground subject distance, and with this as output coordinate.
If it is infinity that focusing leaves 174, then select output coordinate according to the angle between each terrestrial reference coordinate 156 and shooting direction.Step S91 calculates by taking coordinate toward formed vector of each terrestrial reference coordinate 156 direction and the horizontal sextant angle of taking direction.And step S92 calculates by taking coordinate toward formed vector of each terrestrial reference coordinate 156 direction and the vertical angle of taking direction according to shooting angle 172.Can be with reference to following formula during calculating:
α
Poi=tan
-1((X
Poi-X)/(Y
Poi-Y)) (formula 5)
θ
Poi=θ
f-α
Poi(formula 6)
β
Poi=sin
-1((Z
Poi-Z)/D
Poi) (formula 7)
v
Poi=v
f-β
Poi(formula 8)
α wherein
PoiRepresent the horizontal sextant angle between each the terrestrial reference coordinate 156 and the positive north, X
PoiRepresent the terrestrial reference longitude in each terrestrial reference coordinate 156, the shooting longitude in the coordinate, Y are taken in the X representative
PoiRepresent the terrestrial reference latitude in each terrestrial reference coordinate 156, the shooting latitude in the coordinate, θ are taken in the Y representative
PoiRepresent each terrestrial reference coordinate 156 and the horizontal sextant angle of taking direction, θ
fDirection, β are taken in representative
PoiRepresent each terrestrial reference coordinate 156 and horizontal angle, Z
PoiRepresent the terrestrial reference height above sea level in each terrestrial reference coordinate 156, the shooting height above sea level in the coordinate, D are taken in the Z representative
PoiRepresent each terrestrial reference coordinate 156 and take the distance between terrestrial reference, v
PoiRepresent each terrestrial reference coordinate 156 and the vertical angle of taking direction, and v
fRepresent shooting angle 172 (shooting angle 172 can be represented the angle of depression with negative value for example with on the occasion of the expression elevation angle).
After photographing information and the above-mentioned formula calculating of terrestrial reference coordinate 156 substitutions, just can obtain each terrestrial reference coordinate 156 and horizontal sextant angle and the vertical angle of taking direction.Step S93 again to each terrestrial reference coordinate 156 corresponding horizontal sextant angles and vertical angle addition obtain the terrestrial reference angle and.Have heal little terrestrial reference angle and terrestrial reference coordinate 156 promptly represent by digital camera 100 toward the direction of terrestrial reference coordinates 156 with to take direction nearer.So in step S94, choose minimum terrestrial reference angle and pairing terrestrial reference coordinate 156 as output coordinate.
And for example shown in Fig. 8 B, a selected terrestrial reference coordinate 156 comprises as the method for output coordinate in addition: step S97: be shown in the pairing terrestrial reference title of terrestrial reference coordinate on the liquid crystal display, select the terrestrial reference title of an appointment for the user; And step S98: receive selected order, the pairing terrestrial reference coordinate of the terrestrial reference title of appointment as output coordinate.
If when in same search awl section 154, finding out a plurality of terrestrial reference coordinate 156, step S97 is shown to user's reference to the terrestrial reference coordinate 156 pairing terrestrial reference titles of being consulted, and in the result of step S98 acquisition user input to provide digital camera 100 records.About being shown to the terrestrial reference coordinate 156 of user's reference, can show again after the ordering with doing based on above-mentioned ground subject distance or terrestrial reference angle, also can show based on the order of being looked for.
According to above-mentioned steps, just can progressively in searching awl section 154, search till finding out output coordinate.Better is to set up the boundary condition of search according to image resolution ratio when searching terrestrial reference coordinate 156.Subject 200 heal position far away then in image shared pixel few more.Yet because the restriction of resolution, when subject 200 was enough far away apart from digital camera 100, a pixel was presented in 200 meetings of subject in image, far will be regarded as and cannot see this object.Therefore can search critical distance according to different resolution setting one, for example can only be shown as the distance of a pixel under this resolution of object of 10 meters sizes of 10 meters * of one 10 meters *.Take awl 152 if in searching critical distance, can't find any terrestrial reference coordinate 156 to be positioned at, promptly assert in taking awl 152 does not have terrestrial reference coordinate 156, and assert that no terrestrial reference title can provide output.
According to embodiments of the invention, when storing volume that each terrestrial reference has or dead area in the figure money table 1162, can reduce the computing when searching.Dead area refers to that terrestrial reference can cover the area of the scenery that is positioned at the terrestrial reference back side.When in a certain search awl section 154 when finding a terrestrial reference coordinate 156 can crested live owing to be positioned at the scenery at this terrestrial reference back side, so in searching awl sections 154, need not search the calculating of other landmark locations 156 part of crested.
In addition, also can be used to inquire about the terrestrial reference title that the user sees according to the method for the invention.Digital camera 100 is the real time acquisition image dynamically, and is shown in liquid crystal display 108 to the terrestrial reference title that searches with the method that the terrestrial reference title is taken the photograph in above-mentioned detection.Be not limited to do computing according to the present invention, also not necessarily will be recorded in the pairing terrestrial reference title of output coordinate in the image to the image that needs store.
Even subject 200 non-terrestrial references but personage etc. also can find terrestrial reference behind.
According to digital camera and the method thereof of being taken the photograph the terrestrial reference title that detect of the present invention, for having the digital camera of environment acquisition devices such as global positioning system assembly, compass, angle acquisition device, liquid crystal display and figure money table.According to focusing from 174 with by the acquisition of environment acquisition device to photographing information, can search the terrestrial reference coordinate and the coordinate title corresponding that are photographed, to be recorded in the image or confession user reference with it.
Claims (6)
1. the method for terrestrial reference title is taken the photograph in a detection; Be applicable to a digital camera; It is characterized in that; This digital camera has an environmental condition acquisition device, a liquid crystal display and a figure money table, and this figure money table comprises a plurality of terrestrial reference coordinates of a plurality of terrestrial reference titles and corresponding those terrestrial reference titles, and this method may further comprise the steps:
(1) acquisition one image, and obtain a pair of defocus distance, wherein this image comprises that at least one is taken the photograph terrestrial reference;
(2) capture an environmental condition with this environmental condition acquisition device; Wherein this environmental condition comprises a photographing information and a search information; This photographing information comprises that one takes direction, a shooting angle and a shooting coordinate, and this search information comprises a level search angle and a vertical angle of searching;
(3) leave according to this environmental condition and this focusing, obtain one and search burnt section; And
(4) consult and must be to should being taken the photograph an output coordinate of terrestrial reference in this figure money table with the burnt section of this search and this photographing information, and to this terrestrial reference title that should output coordinate,
Wherein said step (4) may further comprise the steps:
(4-1) calculate a shooting axis based on this shooting direction and this shooting angle;
(4-2) take axis, the vertical search of this level search angle angle acquisition one shooting awl with this based on this;
(4-3) search burnt section, reach and to take awl definition one search awl section based on this;
(4-4) consult this output coordinate in this figure money table with this search awl section and this shooting coordinate; And
(4-5) consult this terrestrial reference title that should output coordinate in this figure money table,
Wherein said step (4-4) may further comprise the steps:
Step a, consult in this figure money table with this search awl section and this photographing information and to be positioned at least one this terrestrial reference coordinate that this search is bored section;
Step b, when only finding single this terrestrial reference coordinate and be positioned at this search awl section, this terrestrial reference coordinate of finding with this quilt is as this output coordinate;
Step c, when finding a plurality of these terrestrial reference coordinates and be positioned at this search awl section, according to each those terrestrial reference coordinate of being found, this focusing from being selected this output coordinate in those terrestrial reference coordinates of finding at those with this photographing information; And
Steps d, when in this search awl section, not finding any this terrestrial reference coordinate time, carry out following step: set another this search according to the burnt section of this searchs and this searchs awl section and bore section; And get back to step a, search with this another awl section and this photographing information in this figure money table consult be positioned at this another search this terrestrial reference coordinate of awl section.
2. the method for terrestrial reference title is taken the photograph in detection as claimed in claim 1, it is characterized in that, said step c comprises:
When this focusing when equaling infinity, carry out following step:
Calculate respectively by this shooting coordinate toward each the formed vector of this terrestrial reference coordinate direction found and a horizontal sextant angle of this shooting direction;
Calculate respectively by this shooting coordinate toward each the formed vector of this terrestrial reference coordinate direction found and a vertical angle of this shooting direction;
Calculate respectively pairing this horizontal sextant angle of this terrestrial reference coordinate and this vertical angle a terrestrial reference angle and; And
With this terrestrial reference angle of minimum and pairing this terrestrial reference coordinate as this output coordinate; And when this focusing when being not equal to infinity, carry out following step:
Calculate each this terrestrial reference coordinate found and a ground subject distance of this shooting coordinate; And
With the shortest pairing this terrestrial reference coordinate of this ground subject distance as this output coordinate.
3. the method for terrestrial reference title is taken the photograph in detection as claimed in claim 1, it is characterized in that, said step c comprises:
Be shown in pairing those terrestrial reference titles of those terrestrial reference coordinates on this liquid crystal display, select this terrestrial reference title of an appointment for the user; And
Receive selected order, pairing this terrestrial reference coordinate of this terrestrial reference title of appointment as this output coordinate.
4. one kind can be detected the digital camera of being taken the photograph the terrestrial reference title, in order to a scene is taken an image, it is characterized in that, comprising:
One environmental condition acquisition device is exported a photographing information of an environmental condition of this digital camera, and this photographing information comprises that one takes coordinate, and takes a direction and a shooting angle;
One storage element stores a figure money table, and this figure money table comprises a plurality of terrestrial reference titles and a plurality of terrestrial reference coordinates corresponding with those terrestrial reference titles, and each those terrestrial reference coordinate comprises a terrestrial reference longitude, a terrestrial reference latitude and a terrestrial reference height above sea level;
One capturing images assembly is exported a view data;
One optical module group, in order to control the search information that this capturing images assembly receives this scene, this search information comprises a level search angle and a vertical angle of searching; And
One controller; When this controller activated, this controller received this view data according to focusing from this optical module group of control and by this capturing images assembly, this controller this environmental condition of acquisition and a pair of defocus distance; And according to the burnt section of this focusing distance setting one search; In this figure money table, consult corresponding at least one terrestrial reference title with the burnt section of this environmental condition, this search information and this search again, this terrestrial reference title that this this quilt of controller output is found
Wherein this controller is consulted corresponding at least one terrestrial reference title with this environmental condition, this search information and the burnt section of this search and is exported this terrestrial reference title that this quilt finds and comprises in this figure money table: calculate a shooting axis according to this shooting direction and this shooting angle; Take axis, the vertical search of this level search angle angle acquisition one shooting awl according to this with this; According to this search burnt section, and this take awl definition one and search the awl section; Consult this output coordinate with this search awl section and this shooting coordinate in this figure money table; And consult this terrestrial reference title that should output coordinate in this figure money table,
Wherein consulting this output coordinate with this search awl section and this shootings coordinate in this figure money table comprises: step a, consult in this figure money table with this searchs awl section and this photographing information and to be positioned at least one this terrestrial reference coordinate that this search is bored section; Step b, when only finding single this terrestrial reference coordinate and be positioned at this search awl section, this terrestrial reference coordinate of finding with this quilt is as this output coordinate; Step c, when finding a plurality of these terrestrial reference coordinates and be positioned at this search awl section, according to each those terrestrial reference coordinate of being found, this focusing from being selected this output coordinate in those terrestrial reference coordinates of finding at those with this photographing information; And steps d, when in this search awl section, not finding any this terrestrial reference coordinate time; Carry out following step: set another this search awl section according to the burnt section of this search and this search awl section; And get back to step a, search with this another awl section and this photographing information in this figure money table consult be positioned at this another search this terrestrial reference coordinate of awl section.
5. the digital camera of being taken the photograph the terrestrial reference title that detects as claimed in claim 4 is characterized in that this environmental condition acquisition device comprises:
One global positioning system assembly is exported this shooting coordinate of this digital camera, and this shooting coordinate comprises one and takes longitude, and take latitude and a shooting height above sea level;
One compass is exported this shooting direction of this digital camera; And
One angle acquisition device is exported this shooting angle of this digital camera.
6. the digital camera of being taken the photograph the terrestrial reference title that detects as claimed in claim 4; It is characterized in that; This optical module group comprises a lens assembly, an iris apparatus and in order to showing a liquid crystal display of this terrestrial reference title, and this capturing images assembly comprises a Charged Coupled Device.
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| CN110913126B (en) * | 2019-10-31 | 2022-07-19 | 华为终端有限公司 | Shooting range calculation method and device and related equipment |
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| CN1780390A (en) * | 2004-11-25 | 2006-05-31 | 乐金电子(中国)研究开发中心有限公司 | Picture taking system and method for mobile communication terminal for displaying site of taking pictures |
| CN101150663A (en) * | 2006-09-19 | 2008-03-26 | 株式会社理光 | Image capture apparatus |
| CN101193190A (en) * | 2006-11-27 | 2008-06-04 | 华晶科技股份有限公司 | Method for getting and displaying name of shooting site on the digital photo |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780390A (en) * | 2004-11-25 | 2006-05-31 | 乐金电子(中国)研究开发中心有限公司 | Picture taking system and method for mobile communication terminal for displaying site of taking pictures |
| CN101150663A (en) * | 2006-09-19 | 2008-03-26 | 株式会社理光 | Image capture apparatus |
| CN101193190A (en) * | 2006-11-27 | 2008-06-04 | 华晶科技股份有限公司 | Method for getting and displaying name of shooting site on the digital photo |
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| Title |
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| JP特开2005-311939A 2005.11.04 |
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