CN103124329B - Image pick up equipment, drive control method - Google Patents

Abstract

A kind of image pick up equipment, drive control method and computer-readable recording medium.A kind of image pick up equipment, including：Image pickup units, for carrying out reference object using filming apparatus；Control unit, the operation mode for determining image pick up equipment, and when the operation mode of image pick up equipment is manual focus pattern, which selects focusing detection method to be applied according to the focus operation of user in a variety of focusing detection methods；Determination unit, for determining the focusing state of object using selected focusing detection method；And user interface section, it is used to indicate identified focusing state.

Description

Image pick up equipment, drive control method

Cross reference to related applications

This application claims the South Korea patent application 10- submitted to Korean Intellectual Property Office on October 17th, 2012 No. 2012-0115136 and the Japanese patent application the 2011-253181st submitted to Japanese Patent Office on November 18th, 2011 Priority, their disclosure by reference be totally integrating in this.

Technical field

This total inventive concept is related to a kind of image pick up equipment, its drive control method and computer-readable record matchmaker Body.More specifically, this total inventive concept is related to a kind of to change focusing detection to be applied according to the focus operation of user Method and the image pick up equipment of its focusing state, drive control method and computer-readable recording medium can be detected.

Background technology

Digital camera refers to by object（subject）Image be converted to electric signal, the electric signal be converted into number again Signal and camera by the digital signal record on the storage means.In recent years, it is attributed to the development of electronic technology, it is various types of The research and development and propagation of the digital camera of type are accelerated.

This digital camera needs to focus on the operation of object correctly to shoot the object.Such operation is referred to as Focusing.Such focusing method can be divided into two methods.A kind of method is manual focus method（Or manual focus pattern）, wherein User directly focuses, and another method is Atomatic focusing method（Or autofocus mode）, wherein digital camera adjusts automatically Save focal length.

Recent digital camera uses Atomatic focusing method, to allow user to be easier to shoot.However, when there are multiple When object, or when user wishes reference object and glass surface is located between the digital camera and object of user, automatically There is focusing method limitation, high digital performance camera to support with its manual focus method.

However, while being shot by manual focus method, traditional digital camera cannot be provided about object Focusing state current information.Accordingly, it is difficult to be shot using manual focus method.

Invention content

The disclosure is developed to overcome drawbacks described above and other problems associated with conventional arrangement.This total invention The exemplary embodiment of design provides a kind of can change focusing detection method to be applied simultaneously according to the focus operation of user And the image pick up equipment of focusing state, the drive control method of the equipment and computer-readable recordable media can be detected.

The supplementary features and effectiveness of this total inventive concept will partially elaborate in following explanation, and will be from being stated It is clear that can be known by the practice of this total inventive concept in bright.

The exemplary embodiment of this total inventive concept provides a kind of image pick up equipment, may include：Image pickup Unit, for carrying out reference object using filming apparatus；Control unit, the operation mode for determining image pick up equipment, and When the operation mode of image pick up equipment is manual focus pattern, the control unit is according to the focus operation of user a variety of right Focusing detection method to be applied is selected in burnt detection method；Determination unit, for being come using selected focusing detection method Determine the focusing state of object；And user interface section, it is used to indicate identified focusing state.

A variety of focusing detection methods may include swinging operation method, and when there is no the focus operation of user or For person when focus operation is less equal than predefined size, described control unit can select the swinging operation method as answering Focusing detection method.

When the focus operation of user is more than predefined size, described control unit can select manual focus operation method to make For the focus operation of user.

The determination unit can convert the driving width of swinging operation according to the f-number of lens unit and focusing state Degree, and determine the focusing state of object.

When driving zoom lens, described control unit can control the determination unit uncertainty plant to coke-like State.

When driving zoom lens, described control unit can control the user interface section do not indicate determined by it is right Coke-like state.

When stopping focus lens, the user interface section can indicate identified focusing state and focus lens Driving direction.

When driving focus lens, the user interface section can indicate identified focusing state and focusing The validity of the driving direction of camera lens.

The determination unit can calculate pinpointed focus position according to the focusing information at three different locations of focus lens It sets, and calculates the driving direction of focus lens to be moved to calculated optimal focus position.

Image pick up equipment may include storage unit, for storing the image shot by image pickup units, wherein when When input picture pickup order, the image shot by filming apparatus can be stored in the storage unit by described control unit In.

The exemplary embodiment of this total inventive concept can also provide a kind of drive control method of image pick up equipment, The method may include：Determine the operation mode of image pick up equipment；If the operation mode of image pick up equipment is manual Focal modes then select focusing detection method to be applied according to the focus operation of user from a variety of focusing detection methods；Make The focusing state of object is determined with selected focusing detection method；With focusing state determined by instruction.

A variety of focusing detection methods may include swinging operation method, and when there is no the focus operation of user or Person selects the swinging operation method as focusing detection side to be applied when focus operation is less than or equal to predefined size Method.

When the focus operation of user is more than predefined size, selection focusing detection method may include the focusing according to user Operation selection manual focus operation method.

The swinging operation can convert its drive amplitude according to the f-number of lens unit and focusing state.

Determine that focusing state may include：When driving zoom lens, the determination for being not carried out focusing state is determined.

Focusing state may include determined by instruction：When driving focus lens, identified focusing state is not indicated.

Focusing state may include determined by instruction：When stopping focus lens, indicate determined by focusing state and The driving direction of focus lens.

Focusing state may include determined by instruction：When driving focus lens, to coke-like determined by instruction The validity of the driving direction of state and focus lens.

Determine that focusing state may include：It is calculated using the focusing information at three different locations of focus lens best burnt Point position, and the driving direction of focus lens is calculated to be moved to calculated optimal focus position.

The exemplary embodiment of this total inventive concept can also provide a kind of non-instantaneous computer-readable recording medium, when The drive control method of image pick up equipment is carried out when the record media is computer-executed.The drive control method can wrap It includes：Determine the operation mode of image pick up equipment；If the operation mode of image pick up equipment is manual focus pattern, basis The focus operation of user selects focusing detection method to be applied from a variety of focusing detection methods；It is examined using selected focusing Survey method determines the focusing state of object；With focusing state determined by instruction.

The exemplary embodiment of this total inventive concept can also provide a kind of to be shown pair using digital image capturing device The method of the focusing state of elephant, the method includes：Determine whether to have selected the manual focus pattern of digital image capturing device； The focus operation for determining whether there is user determines that the focus operation of user is less than or equal to when selecting manual focus pattern The focus operation of predetermined focusing amount or user are more than predetermined focusing amount, use the focus operation determination pair of identified user The focusing state of elephant, and show identified focusing state.

The method may include：Make a reservation for when there is no the focus operation of user or when focus operation is less than or equal to When focusing amount, swinging operation is executed.

The method may include：Swinging operation converts digitally captured according to the f-number of lens unit and focusing state The drive amplitude of the focus lens of equipment.

The method may include：Focusing state includes that ought drive the focusing of digital capture device determined by display When camera lens, the validity of the driving direction of identified focusing state and focus lens is shown.

The method may include：It determines focal length, including uses the focusing information at three different locations of focus lens Optimal focus position is calculated, and calculates the driving direction of focus lens to be moved to calculated optimal focus position.

The exemplary embodiment of this total inventive concept can also provide a kind of digital image capturing device comprising：Figure As acquisition equipment, the image for capturing object；Controller is used to determine whether to have selected the manual focus of image capture apparatus Pattern, when selecting manual focus pattern, determines that the focus operation of user is small to determine whether there is the focus operation of user It is more than predetermined focusing amount in or equal to the focus operation of predetermined focusing amount or user, and uses pair of identified user Coke operation determines the focusing state of object；And user interface section, for showing identified focusing state.

When controller determines the focus operation there is no user or when focus operation is less than or equal to predetermined focusing amount When, controller can execute swinging operation.

The swinging operation that controller executes converts digitally captured equipment according to the f-number of lens unit and focusing state Focus lens drive amplitude.

When driving the focus lens of digital capture device, user interface can show determined by focusing state and The validity of the driving direction of focus lens is to show identified focusing state.

Controller can use the focusing information at three different locations of focus lens to calculate optimal focus position, and The driving direction of focus lens is calculated to be moved to calculated optimal focus position, so that it is determined that focusing state.

Description of the drawings

From the following description of the embodiment in conjunction with attached drawing, these and or other features and effectiveness of this total inventive concept It will be apparent and it is more readily appreciated that in attached drawing：

Fig. 1 is the box of the configuration for the image pick up equipment for illustrating the exemplary embodiment according to this total inventive concept Figure；

Fig. 2 is the lens unit of the image pick up equipment of pictorial image 1 and the view of control unit；

Fig. 3 is the view of the evaluation operation for the focusing state for illustrating the exemplary embodiment according to this total inventive concept；

Fig. 4 and Fig. 5 is the calculating behaviour for the optimal focus position for illustrating the exemplary embodiment according to this total inventive concept The view of work；

Fig. 6 and Fig. 7 is that the exemplary of user interface windows that diagram can be shown on the user interface section of Fig. 1 regards Figure；

Fig. 8 is the stream of the driving method for the image pick up equipment for illustrating the exemplary embodiment according to this total inventive concept Cheng Tu；

Fig. 9 is the stream of the driving method for the image pick up equipment for illustrating the exemplary embodiment according to this total inventive concept Cheng Tu；

Figure 10 is the zoom tracking of the driving method of pictorial image 9（zoom-tracking）The flow chart of operation；

Figure 11 is the flow of the operation of the optimal focus position and driving direction that illustrate the driving method for calculating Fig. 9 Figure；

Figure 12 is the flow chart of the operation for the weave control variable for illustrating the driving method for calculating Fig. 9；

Figure 13 be illustrate it is according to the exemplary embodiment of this total inventive concept, calculate pendulum by considering focusing state The flow chart of the operation of dynamic control variable；

Figure 14 is the flow of the manual focus method of focusing driving of the diagram by swing and the driving method according to Fig. 9 Figure；

Figure 15 is the flow chart for illustrating the instruction operation when not having the focus operation of user in the driving method in Fig. 9； With

Figure 16 is illustrated when there are the flow charts of the instruction operation when focus operation of user in the driving method in Fig. 9.

Through attached drawing, similar reference numeral will be understood as being directed toward similar component, component and structure.

Specific implementation mode

Now by the embodiment of this total inventive concept carry out the example illustration referring in detail to, this total inventive concept in In attached drawing, similar reference numeral is directed toward similar element wherein in full text.Embodiment is described below so as in refer to the attached drawing Explain this total inventive concept.

Defined herein item is provided（Such as detailed construction and its element）To assist comprehensive understanding this specification.Cause This, it will therefore be apparent that it can also implementation example embodiment without the item of those definition.Moreover, omitting known function or construction In order to provide the clear concise description of exemplary embodiment.Moreover, the size of each element in attached drawing can arbitrarily increase It adds deduct small to assist comprehensive understanding.

Fig. 1 is the block diagram for the image pick up equipment for illustrating the exemplary embodiment according to this total inventive concept.

With reference to figure 1, the image pick up equipment 100 according to the exemplary embodiment of this total inventive concept may include communication Interface unit 110, user interface section 120, storage unit 130, image pickup units 140, lens unit 150, determination unit 160, image processing unit 170 and control unit 180.It is set according to the image pickup of the exemplary embodiment of this total inventive concept Standby 100 may include digital camera, field camera, cellular phone, PMP, web camera etc..

Communications interface unit 110 can be communicably connected at least one terminal device via wiredly and/or wirelessly interface 102, and LAN can be passed through（LAN）With internet network and pass through universal serial bus（USB）Port, bluetooth module Etc. be connected to terminal device by wireless or cable.

The content that communications interface unit 110 stores image pick up equipment 100（Such as data, image file, video file Deng）It is sent to external terminal devices 102.In detail, the image that communications interface unit 110 can will store in storage unit 130 File（It will be described below）It is sent to exterior terminal equipment 102 or server.Herein, content may include that can be picked up by image Picture material that taking equipment 100 generates, video content etc..

User interface section 120 has allow to be supported in user setting or selection image pick up equipment 100 one Or multiple function keys of multiple functions, and can indicate and/or show the information that image pick-up device 100 provides.User connects Mouth unit 120 can be implemented as the equipment that can be such as carried out at the same time touch screen output and input etc, or by that will wrap Include the input unit and such as LCD of multiple buttons（Liquid crystal display）Monitor, OLED（Organic Light Emitting Diode）Monitor etc. Display device it is combined and realize.

User interface section 120 receives one or more control commands, such as live view from user（live-view）It is aobvious Show order, half shutter order（Or auto-focusing order）, shutter order（Or image pickup order）Deng.

User interface section 120 receives and the relevant setting of image pick-up operation and/or order.In detail, user interface Unit 120 can receive it is arranged below, for example, user wishes to preserve any file format of captured image, captured image Resolution ratio, whether application image correct（Such as blur reduction, focusing adjustment etc.）, whether using digital zooming, automatic white flat Weighing apparatus（AWB）, auto-focusing（AF）, automatic exposure（AE）Deng.

User interface section 120 can show captured image.Specifically, user interface section 120 can show root According to the image that the image pickup order of user is shot, and/or show the image corrected by image processing unit 170, it will be slightly After describe.

User interface section 120 can be deposited according to the play command of the user received by user interface section 120 to show Store up the various contents in storage unit 130.Herein, content may include picture material, video content etc..For example, if figure As pick device 100 can capture video（That is, capture forms the image of video, and video is stored in storage unit 130 In）, then user interface section 120 can play the video content being pre-stored in storage unit 130.

User interface section 120 can show live view image.It is, user interface section 120 can be shown just The image captured by the image pickup units 140 of image pick up equipment 100.Specifically, user interface section 120 can be based on using The live view display command at family shows the live view image shot by image pickup units 140（As described later）. Herein, live view refers to allowing the user interface windows in user interface section 120 rather than being shown by image on view finder Pickup unit 140 is shot（Capture）Image function.User interface section 120 can show in determination unit 160 and determine Focusing state, as will be described later.When user just uses view finder to shoot image, can be indicated by true on view finder The focusing state that order member 160 determines.Illustrate such example below with reference to Fig. 6 and Fig. 7.

Storage unit 130 stores captured image.Specifically, storage unit 130 can store image pickup units 140 Captured image（It will be described hereinafter）Or by the image of image procossing in image processing unit 170（It will below Middle explanation）.That is, image pickup units 140 capture the image of object and the information captured are converted to numerical data, the number Digital data can be handled and/or be stored in storage unit 130 by image processing unit 170.

Storage unit 130 can be stored in the focal position calculated in determination unit 160 and control unit 180, varifocal mirror The assessed value etc. of head focal length, focusing state（It will be described hereinafter）.

Storage unit 130 can be storage media and external memory media in image pick up equipment 100, it may for example comprise The removable disk and/or storage card of USB storage, flash memory etc., the storage media for being connected to image pick up equipment, by network Website server etc..

Image pickup units 140 can continuously shoot multiple images using image pick-up device, work as in multiple image In there are mutual displacements.Specifically, image pickup units 140 may include for photoelectrically will be converted to electricity across the light of camera lens The image pick-up device of signal and for the analog signal of image pick-up device to be converted to digital signal and exports theirs A/D（Modulus）Converter.Image pick-up device may include charge coupling device（CCD）Image pick-up device and/or complementary gold Belong to oxide semiconductor（CMOS）Image pick-up device.

Image pickup units 140 can generate full frame image according to the mode of operation of image pick up equipment 100 or take in real time Scape image.

Lens unit 150 collects the light of object to form light image on shooting area.For example, lens unit 150 can To collect the light from object and form in image pickup units 140 light image, therefore image pickup units 140 can be caught Obtain image.Below with reference to the detailed construction of bright mirror head unit 150 and operation for Fig. 2.

Determination unit 160 determines the focusing state about object using identified focusing detection method.It below will ginseng Fig. 3 is examined to illustrate that determining for focusing state operates.

Determination unit 160 can be calculated best using the focusing information for example at three different locations of focus lens Focal position（Focal length）With the driving direction of focus lens, to be moved to calculated optimal focus position.Later with reference to Figure 11 illustrates the operation for calculating focal position and driving direction.

The optimal focus position calculated and driving direction are supplied to control unit 180 by determination unit 160.It determines single Member 160 can carry out focusing detection according to the focusing detection method that control unit 180 determines.Herein, focusing detection method can With including executing swinging operation, manual focus operation and the operation for combining swinging operation and manual focus operation.

Determination unit 160 can change the driving of swinging operation according to the f-number of lens unit 150 and focusing state State.

Image processing unit 170 can correct and/or handle the image of the generation of image pickup units 140.Specifically, image Processing unit 170 can be directed to the signal processing of the format conversion of generated image, the number for adjusting image scaled Scaling, automatic white balance（AWB）, auto-focusing（AF）, automatic exposure（AE）, color correction, blur reduction, image sharpening etc.. In the exemplary embodiment of this total inventive concept, image processing unit 170 can pass through image pick up equipment by combination Voice signal and multiple captured images that 100 independent internal microphone or external microphone receive and generate video file, And the video file generated can be stored in storage unit 130.

Control unit 180 can control each configuration in image pick up equipment 100, and control unit 180 can be controlled The operation of imaged pick device 100.Specifically, when the power supply of image pick up equipment 100 is connected, control unit 180 controls Image pickup units 140 are at a predetermined interval（For example, 1/60 second unit, hereinafter the unit is referred to as a frame）Read exposure and figure As data, and controls user interface section 120 and show read image on it.

Control unit 180 calculates the brightness value of read image, and the aperture of image captured by can controlling, when exposing Between, yield value etc. is so as to brightness appropriate.It is, control unit 180 can control aperture, time for exposure, yield value Deng, therefore the image captured can have scheduled brightness.

When user selects manual focus pattern, control unit 180 can be according to focusing state from a variety of focusing detection sides Focusing detection method to be applied is determined in method.Focusing state may include for example when there is no focus operation, work as focusing State when operation is less than or equal to predetermined focusing amount and when focus operation is more than predetermined focusing amount.Specifically, when there is no When the focus operation of user or when the size of focus operation is less than or equal to predefined size（For example, if user utilizes focusing The amount of movement of 153 focus image of camera lens is less than or equal to predetermined amount）When, control unit 180 can select swinging operation method to make For focusing detection method to be applied.As described in detail later, swinging operation can be that control unit 180 obtains focus lens （Such as the focus lens 153 illustrated in Fig. 2）When forwardly and/or backwardly moving focus lens preset distance on linear direction Assessed value at three positions.When the size of focus operation（For example, according to the input of user, 153 focus image of focus lens Amount of movement）When more than predefined size, control unit 180 can determine that manual focus operation method is detected as focusing to be applied Method.When determination unit 160 determines focusing state, control unit 10 can control the instruction of user interface section 120 institute really Fixed focusing state.

When driving zoom lens（Such as the zoom lens 151 illustrated in Fig. 2）When, control unit 180 can control Determination unit 160 and user interface section 120 to not execute focusing detection method, and do not indicate corresponding testing result. When operated in this manner, image pick up equipment 100 can reduce its unnecessary power consumption.

Even if as noted previously, as being existed according to the image pick up equipment 100 of the exemplary embodiment of this total inventive concept User also provides the information about focusing state when shooting image by manual focus method, therefore user can more hold It changes places and carries out object focusing.Moreover, when the focus operation value of user is more than predetermined focus operation value, image pick up equipment 100 Focusing state can be determined without individual swinging operation.

Although Fig. 1 illustrates determination units 160 and control unit 180 to be separated from each other, determination unit 160 can be integrated With the function of control unit 180.It is, controller and/or processor can carry out as described above together with determination unit 160 With the function and operation of control unit 180.Such situation is described below with reference to Fig. 2.

Fig. 2 is the view of the lens unit of the image pick up equipment of pictorial image 1 and the detailed configuration of control unit.

With reference to figure 2, lens unit 150 may include zoom lens 151, aperture 152, focus lens 153 and manual ring 154.The function of each component of lens unit 150 is widely known, therefore, will omit the detailed description to them.

Control unit 180 may include zoom lens focal length computing module 181, focal position detection module 182, coke Point distance calculation module 183, MF（Manual focus）Mode of operation detection module 184, optimal focus position and directions calculation module 185 and focusing driving module 186.

Zoom lens focal length computing module 181 calculates the current zoom camera lens focal length of zoom lens 151.Zoom Camera lens focal length can be the position for the zoom lens 151 that self-reference position starts and/or the zoom that self-reference position starts The linear movement distance of camera lens 151.Specifically, zoom lens focal length computing module 181 detects the variable of zoom lens 151 The output resistance of resistor, and the resistance value detected can be used to be looked into relative to the pre-stored of zoom lens focal length Table is looked for calculate zoom lens focal length.Zoom lens focal length after calculating can be stored in storage unit 130.

Zoom lens focal length computing module 181 detects whether to drive zoom lens 151.Specifically, zoom lens Focal length computing module 181 is by the zoom lens focal length of former frame compared with the zoom lens focal length of present frame Compared with, and if there is any difference, then can determine and drive zoom lens 151.

Focal position detection module 182 detects the position of focus lens.Specifically, when focus lens are in infinity, There are electric short circuit contacts.Upon start up, image pick up equipment 100 drives focus lens, and burnt when being driven on direction of closing Detection electric short circuit or ground state when point position, until detecting short-circuit condition.

The storage of focal length computing module 183 is corresponding with zoom lens focal length, focal length and focus lens to look into Table is looked for, and focal length, zoom lens focus are calculated using the focal position and zoom lens focal length that detect Distance is to use stored look-up table precalculated.

Lens unit 140 may include manual ring 154 and the direction of rotation for detecting manual ring 154 and rotation amount Detector.Therefore, MF modes of operation detection module 184 can be by by the manual ring of the testing result being pre-stored and current detection The result of the result of position and the current detection of detector is compared to the presence of the focus operation of detection user, operation side To（That is the direction of rotation of manual ring 154）And operating quantity（That is the rotation amount of manual ring 154）.

Optimal focus position and directions calculation module 185 calculate the best coke for the focus lens for being moved to optimal focus position Point position and driving direction.The clear image on the expected range in Objects scene for example may be implemented in optimal focus position.Under Face will illustrate such calculating operation with reference to figure 11.

Focusing driving module 186 carries out focusing detection according to identified detection method.Below with reference to Fig. 3,4 and 5 To illustrate detection method of focusing.

Fig. 3 is the view of the evaluation operation for the focusing state for illustrating the exemplary embodiment according to this total inventive concept.

As shown in Figure 3, image pick up equipment 100 divides multiple regions（For example, 30 × 18 blocks shown in Fig. 3）, And calculate the assessed value for the acutance for indicating each cut zone.Image pick up equipment 100 is using in multiple positions of focus lens The assessed value that the place of setting calculates assesses the focusing state at each region.As set forth above, it is possible to pass through determination unit 160 or control Unit 180 carries out the assessment of the focusing state at each region.

Typically, whether object, which is focused, to be determined by the assessed value at a position of only focus lens, And driving direction can not also be detected from the assessed value from only one position.Therefore, in order to identify optimal focus position, scheme As pick device 100 can calculate the assessed value at least three positions of focus lens.

Therefore, in the exemplary embodiment of this total inventive concept, when the focus operation of user occurs, according to user Focus operation focus lens movement, calculate the assessed value at three positions of focus lens.When there is no user's When focus operation, by carrying out the assessed value at three positions of the swinging operation to determine focus lens, controlled in swinging operation Unit processed obtains three positions of focus lens while forwardly and/or backwardly moving focus lens preset distance on linear direction Set the assessed value at place.When the focus operation for detecting user, but when focus operation amount is less than or equal to predetermined value, by that will put The dynamic assessed value operated at three positions for being added to the focus operation amount of user to determine focus lens.

Since assessed value indicates that acutance, the variation of assessed value are more than in the focal position of optimal focus position Predetermined value（It is i.e. relatively large）.However, if there is object the reduced value less than or equal to predetermined value, assessed value itself to be not more than Predetermined value even in optimal focus position, therefore assessed value is unsuitable for detecting optimal focus position.Since assessed value does not change Become or the first preset distance position is located at by driving（For example, too remotely from；That is, in unlimited distant positions）Focal position neutralize Positioned at the second preset distance position（For example, very close to；That is, approximated position）Focal position in focus lens and change small In predetermined amount, therefore it is unsuitable for detecting optimal focus position using infinity and approximated position.

Therefore, the exemplary embodiment of this total inventive concept uses close pinpointed focus position in each focal position The focal position set, rather than be not suitable for the focal position used as described above（That is, infinity and close）.Below with reference to figure 4 illustrate the method for selecting this focal position.

Fig. 4 illustrates the change of assessed value with four kinds of patterns.

With reference to figure 4, close to optimal focus position（It is four kinds of patterns（For example, 410,420,430 and of focal position 440）One of）Focal position 410 in, pass through mobile focus lens and increase and reduce assessed value.It is, with focal position 410 are moved to 180 from position 160, and assessed value increases, and when focal position 410 is moved to 200 from position 180, assessed value subtracts It is small.

In focal position 420 in unlimited distant positions, assessed value increases as distance increases.It is, with coke The position of point position 420 is moved to 200 from 160, and assessed value increases.In focal position 430 on approximated position, assessed value with Distance to shorten and increase.It is, the position with focal position 430 is moved to 160 from 200, assessed value increases.

Can be in the focal position 440 of distance to a declared goal, regardless of focal length changes, assessed value remains unchanged.

Since three kinds of patterns in four kinds of patterns as described above may not be suitable for determining optimal focus position, three Assessed value in a focal position is determined block by block in the image close to any one of four kinds of patterns, and can be used The pattern for increasing with assessed value and reducing（Such as focal position 410）Block region calculate optimal focus position.It is, It can select and be calculated using the block region with the pattern that assessed value increases and reduces such as in focal position 410 best Focal position.

After the selection for completing block region, Fig. 5 illustrates optimal focus position can be by using following two straight lines Intersection detect：Straight line connects the maximum value and minimum value of three assessed values, and Article 2 straight line is symmetrical with first Straight line and pass through median.

Three focal positions as described above can be arranged in tolerable focus（The depth of field）Position in addition；Cause This can be detected more accurate best using three focal positions at the position being arranged on other than tolerable focus Focal position.

Fig. 6 and Fig. 7 is that the exemplary of user interface windows that diagram can be shown on the user interface section of Fig. 1 regards Figure.

With reference to figure 6, user interface windows 600 show the focusing state for each block for not carrying out focusing adjustment wherein.

Herein, first area 610 is the region of best focus position, that is, the region is just in-focus.For example, the firstth area Domain 610 can for example be indicated with yellow.

Then, second area 620 is the region at the focal position before best focus position.Second area 620 Blue instruction can such as be used.In the exemplary embodiment of this total inventive concept, according to the degree of focus error（That is quantity）, Second area 620 can be indicated with different colors.For example, the region focus difference more than predetermined value can be indicated with navy blue, And the region focus difference less than or equal to predetermined value can use light blue instruction.

Third region 630 is the region in the subsequent focal position of best focus position.For example may be used in third region 630 To be indicated with cyan.In the exemplary embodiment of this total inventive concept, according to the degree of focus error（That is quantity）, third Region 630 can be indicated with different colors.For example, the region focus difference more than predetermined value can be indicated with darkcyan, and it is small It can be indicated with light cyan in the region focus difference of predetermined value.

In above description and Fig. 6, the focusing state after the instruction calculating of user interface windows 600.However, user's During focus operation, the whether effective information of the focus operation of user can be indicated together on user interface windows.Below will It is described with reference to Figure 7 such example.

With reference to figure 7, user interface windows 700 be according to the exemplary embodiment of this total inventive concept can be in user One example of the user interface windows shown during focus operation.

The fourth region 710 is the region of best focus position, that is, the region is just in-focus.For example, the fourth region 710 It can for example be indicated with yellow.

5th region 720 is the region in the focal position before best focus position.If user is just with infinity Direction move, that is, if the focus operation of user be the 5th region gradually become far from focal length direction carry out, the 5th Region 720 can indicate that the direction of user's operation is invalid.For example, the 5th region 720 can use red instruction.In this total invention In the exemplary embodiment of design, according to the degree of focus error, the 5th region 720 can be indicated with different colors.For example, Region focus difference more than predetermined value can be indicated with kermesinus, and the region focus difference less than predetermined value can be referred to light red Show.

6th region 730 is the region in the subsequent focal position of best focus position.If user is just with infinity Direction moves, that is, if the focus operation of user is carried out close to the direction of focal length in the 6th region, the 6th region 720 can Direction to indicate user's operation is effective.6th region 730 can for example use green instruction.In the example of this total inventive concept In property embodiment, according to the degree of focus error, the 6th region 730 can be indicated with different colors.For example, big region is burnt It can be indicated with dirty-green away from difference, and the region focus difference no more than predetermined value can be indicated with light green color.

District 7 domain 740 can be the region that cannot wherein assess best focus position.It District 7 domain 740 for example can be with It is indicated with white.

Using image pick-up device 100 according to the exemplary embodiment of the disclosure, or even passing through manual focus method When driving, user interface windows provide a user the information about focusing state and the validity about driving direction.Therefore, User can adjust focal length.

Fig. 8 is the flow of the driving method for the filming apparatus for illustrating the exemplary embodiment according to this total inventive concept Figure.

With reference to figure 8, in operation S810, control unit（Such as the control unit 180 illustrated in Fig. 1）Determine that image pickup fills The operation mode set.In detail, control unit determines whether user selects in autofocus mode and/or manual focus pattern It is at least one to be used as focal modes.

If the operation mode of image pick-up device is manual focus pattern, in operation 820, control unit is according to user Focus operation determine focusing detection method to be applied in a variety of focusing detection methods.In detail, when there is no user's When focus operation, swinging method is determined as focusing detection method to be applied.When the focus operation of user is more than predetermined amount, Manual methods are determined as focusing detection method to be applied.When the focus operation of user is less than predetermined amount, can will swing The method that method and manual methods are combined is determined as focusing detection method to be applied.Herein, swinging method is wherein The method that zoom lens forward/backward is moved preset distance on linear direction, control unit obtain three of zoom lens Assessed value at position.Manual focus operation method is that wherein control unit obtains the zoom just changed by the focus operation of user The method of assessed value at the position of camera lens.The combined method is such method：If user's focus operation is to zoom lens Amount of movement be not more than tolerable focusing range（The depth of field）, then control unit forwardly and/or backwardly zoom lens motionless zoom lens, and obtain Take the assessed value at three positions more than the zoom lens of tolerable focusing range.

In operation S830, control unit is by using identified focusing detection method（Such as swinging method, manual focus Operating method or combined method）Determine the focusing state about object, and determined by operation S840 instructions to coke-like State.For determining focusing state and indicating that the operation of result is described above；Therefore, the description thereof will be omitted.

Fig. 9 is the flow of the driving method for the filming apparatus for illustrating the exemplary embodiment according to this total inventive concept Figure.

When user selects operation mode of the manual focus pattern as image pick-up device, control unit is detected and stored Focusing position and zoom focal length.In detail, zoom focal length can be based on the zoom ring 151 with lens unit 150 The relevant resistance value in rotation position detects, and focusing position can be based on the position of the zoom lens 153 of lens unit 150 To detect.Such detection operation can pass through image pick-up device（Such as image pick-up device 100）Control unit（Example Such as, the frame unit and/or controller 180 illustrated in Fig. 1 and Fig. 2）Come carry out.

In operation S910, control unit（Such as control unit 180）Determine whether zoom lens changes.In detail, it controls Unit compares the zoom focal length of present frame with the zoom focal length of previous frame, if zoom focal length changes, Then determine that zoom lens is changing.If in the comparison carried out by control unit operates the zoom focal length of present frame with There is no difference between the zoom focal length of previous frame, then control unit determines that zoom lens does not change.

If in operation S910-Y（It is）Determine that zoom lens is changing, then control unit is become in operation S915 Burnt tracing control.Zoom tracing control is explained below with reference to Figure 10.

If in operation S910-N（It is no）Determine that zoom lens does not change, then control unit is executed according to this total invention The manual focus auxiliary operation of the exemplary embodiment of design.

Control unit detects the mode of operation of manual focus pattern, and obtains the assessment of focusing state in operation S920 Value.Herein, the assessed value of focusing state is assessed value corresponding with the reduced value of each block of image.

It is every in the frame, previous frame and present frame before previous frame in the exemplary embodiment of this total inventive concept The focusing position and assessed value of one focusing state are used to calculate best focusing position and for being moved to best focusing Position（For example, manually moving focus lens or driving focus lens）Method.Therefore, control unit obtain previous frame it The focusing position and assessed value of the focusing state of preceding frame, previous frame and present frame.

If three data values have not been obtained in operation S925-N, best focus position may not be detected, and control Unit processed can detect whether the manual focus operation there are user in operation S950.It is, being had not been obtained when in operation S925 When data value, then control unit can determine whether there is the manual focus operation of user in S950.

On the contrary, if in operation S925-Y（It is）Three data values are obtained, then control unit calculates best in operation S930 Focal position and driving direction for being moved to best focus position.Best focusing position is explained below with reference to Figure 11 With the detailed calculating operation of driving direction.

When calculating best focus position and driving direction, control unit determines whether user executes focusing in operation S935 Operation.It is, when calculating best focus position and driving direction, control unit determines whether there is user in operation S935 The manual focus operation of progress.

When in operation S935-N（It is no）There is no when the focus operation of user, control unit refers in operation S940 to user Show calculated best focus position and driving direction, and swinging operation method is executed in operation S960.In detail, control unit Focus lens can be controlled with infinity direction and to close on direction from the sequentially mobile calculated amount of institute in reference position.Below More detailed swinging operation method will be described with reference to Figure 12.

When there are the focus operations of user（That is, in operation S935-Y（It is））When, control unit is operating S945 to user It indicates the validity of calculated best focus position and driving direction, and the focus operation of user is determined in operation S955 Operating quantity（For example, it may include the manual focus operation of user）Whether predefined size is less than or equal to.

If in operation S955-Y（It is）The operating quantity of the focus operation of user is less than or equal to predefined size, then can be It operates S965 and executes swing focusing driving and manual focus driving.It, can be in the exemplary embodiment of this total inventive concept It is performed simultaneously swing focusing driving and manual focus driving.In detail, it is swung if the operating quantity of the focus operation of user is less than 40 pulses of control width, then control unit possibly can not obtain focus error amount to detect best focus position.Therefore, The drive volume of swing is added to the operating quantity of the focus operation of user by control unit, and executes drive control.It below will ginseng Figure 14 is examined to explain such operation.

When in operation S955-N（It is no）, when the amount of the focus operation of user is determined to be greater than predefined size, operating S970 executes manual focus driving.In other words, control unit calculates three focal positions by the operation of user（That is, previously The focusing state of the focusing state of frame before frame, the focusing state of previous frame and present frame）The assessed value at place.

After adjusting focusing by aforesaid operations, if receiving release operational order from user in operation S980（I.e. Image pickup order）, then determine whether to be carrying out swing focusing driving in operation S985 control units.If operating S985-N（It is no）Swing focusing driving currently is not being executed, then control unit executes image pick-up operation in operation S995.

If in operation S985-Y（It is）It is currently executing swing focusing driving, then in operation S990, control unit will Focus lens are moved to before execution swing focusing driving（Such as just before）Position（That is reference position）, and execute Image pick-up operation（I.e. in operation S995）.In detail, it in the exemplary embodiment of this total inventive concept, is grasped due to swinging Make the intention independent of shooting people, if when shooting people shoots picture（That is, selection release operation）When be carrying out swinging operation, Then control unit can discharge swinging operation, and control drives focus lens to reference to focus position before swinging operation starts It sets.

Using the drive control method according to the exemplary embodiment of this total inventive concept, in addition when user pass through it is manual When focusing method shoots picture, it can also will be supplied to user about the information of focusing state.Therefore, user can be more easily It focuses to object.It can be executed such as in the image pick up equipment of all image pick up equipment 100 as illustrated in Figure 1 etc Drive control method shown in Fig. 8 and 9.Alternatively, driving can be executed in different configuration of image pick up equipment Control method.

Drive control method as described above can be implemented as at least one executable program, which is computer-executed Shi Zhihang drive control methods as described above.Such executable program can be stored in computer-readable recording medium In.

Therefore, each of the total inventive concept of the sheet that is illustrated in Fig. 9 operation can be implemented as computer-readable recording medium On at least one computer can record code.The computer-readable recording medium may include that can store can be by department of computer science The device for the data read of uniting.

Figure 10 is the flow chart of the zoom tracking operation of the driving method of pictorial image 9.

Specifically, when user manipulates zoom lens（That is, the zoom lens 151 of Fig. 2）When, control unit, which can determine, not to be held Row focus operation.Therefore, in the exemplary embodiment of this total inventive concept, image pick up equipment can be manipulated in user to be become Avoid providing a user the status information of focusing during zoom lens.Specifically, because focusing can be in same position, therefore pass through Manipulate zoom lens（Such as zoom lens 151）Pinpointed focus distance can be changed（Or focal length）.It is, working as user When manipulating zoom lens, thus it is possible to vary pinpointed focus distance.Therefore, pass through zoom operational to minimize and/or prevent（Example Such as, the user of zoom lens 151 manipulates）Change focal length, control unit（Such as control unit 180）It can be according to varifocal mirror Focal position is recalculated in the change of head focal length.This is referred to as zoom tracing control.

Zoom lens focal length of the control unit in the pre-stored previous frame of operation S1010 extractions.

Control unit obtains the focal position of present frame, and in operation S1020, uses acquired focal position and elder generation The zoom lens focal length of previous frame calculates focal length.Specifically, since the storage of storage unit 130 includes and zoom lens The tables of data of focal length corresponding focal position and focal length, therefore control unit can be come using pre-stored tables of data Calculate focal length.

In operation S1030, control unit extracts the zoom lens focal length of present frame.

In operation S1040, control unit uses the zoom lens focal length of extracted present frame and is calculated Focal length calculates the focal position of present frame.

In operation S1050, control unit is come using the distance between previous focus position and the focal position calculated difference Control focusing driving.It is, control unit 180 controls driver by the driving of focus lens 153 to by previous focus position The position that the distance between the focal position that is calculated difference determines.

Figure 11 illustrates the flow of the operation of the optimal focus position and driving direction of the driving method for calculating Fig. 9 Figure.

Control unit obtains the data group of focal position in operation S1105, and obtains related each phase in operation S1110 Answer the assessed value of focal position.By focus of the control unit before the data group of operation S1105 acquisitions may include previous frame Position, the focal position of previous frame and present frame focal position.

In operation S1115, n=1 is arranged in control unit, if n is more than the quantity of assessment block, in operation S1120-N （It is no）, terminate the operation for calculating optimal focus position.If n is less than the quantity of assessment block, control unit carries out following task.

Operation S1130, control unit determine whether calculate focal position, whether on the direction of infinity increase or Whether increase on direction of closing.

If in operation S1130-Y（It is）The determination at place is the result is that focal position can be calculated, then control unit is operating S1135 calculates optimal focus position, and in operation S1140, calculates the direction for being moved to optimal focus position.It is, control Unit processed can calculate the direction of amount of movement of the focus lens in optimal focus position.

If in operation S1130-N（It is no）Focal position cannot be calculated, then in S1145, control unit may determine whether Increase focal position on the direction of infinity, and if in operation S1145-Y（It is）It increases on the direction of infinity, then exists S1150 is operated, optimal focus position can be arranged in unlimited distant positions for control unit.

If in operation S1145-N（It is no）It does not increase on the direction of infinity, then in operation S1155, control unit is true It is fixed whether to increase focal position on direction of closing, if it increases on direction of closing（That is, in operation S1155-Y（It is））, Then optimal focus position is disposed proximate to position by control unit in operation S1160.

If in operation S1155-N（It is no）Focal position does not increase on direction of closing, then control unit is in operation S1165 Determine that optimal focus position is incorrect.

Control unit optimal focus position determined by operation S1170 storages makes value n increases by 1 in operation S1175, and And to next image block repeat assessment.

Figure 12 is the flow chart for illustrating the focusing driving carried out by the swinging method of the driving method illustrated in Fig. 9.

With reference to figure 12, control unit calculates weave control variable in operation S1210.Specifically, weave control variable（X）It can To be calculated by calculating the depth of field.Herein, the depth of field is the difference in image, and can pass through F（Aperture）And δ（Tolerable mould Paste circle）Product calculate.It is, the depth of field can be expressed with F δ.Herein, may be allowed the circle of confusion for example can be 15 μm. The storage of image pick up equipment 100 corresponds to the deviation of zoom lens focal length for focus offset quantitative change to be changed on image The transformation coefficient of amount.Therefore, if being 180 with reference to focal position, for example, aperture be 4, and corresponding to zoom lens focus away from From transformation coefficient be 1/12, which becomes 8 × 1/12, therefore the depth of field can be 40.As a result, in fig. 14, focal position can To be 140,180 and 220.Weave control variable can be calculated by considering focusing state, and be come below with reference to Figure 13 Illustrate the exemplary embodiment about the total inventive concept of this sheet.

In operation S1220, control unit determines whether state is zero（0）.Herein, the position of state instruction focus lens, Wherein zero（0）The position of focus lens before being progress weave control, one（1）It is before carrying out weave control towards nothing The position for the focus lens that a limit distant place moves up, two（2）It is before carrying out weave control towards moving on direction of closing Focus lens position.

If it is determined that the result is that state is zero（That is, wobble drive starts）, then in operation S1230, control unit is according to institute The weave control variable of calculating drives up focus lens in infinity side, and in operation S 1235, by the state transformation at One（1）State.It is, as shown in Figure 12, by by weave control variable（X）It is multiplied with depth of field F δ（That is, f-number（F） With the tolerable circle of confusion（δ）It is multiplied）To determine the drive volume of focus lens.

If in operation S1220-N（It is no）Definitive result is that state is non-zero, then in operation S1250, control unit determines Whether state is one（1）.

If in operation S1250-Y（It is）Control unit determines that state is a state, then in operation S1260, control unit With twice calculated weave control parameter driven focus lens on direction of closing, and state is turned in operation S1265 It is changed to two（2）.It is, as shown in Figure 12, by by twice of weave control variable（2X）With f-number（F）With tolerable mould Paste circle（δ）It is multiplied to determine the drive volume of focus lens.

If in operation S1250-N（It is no）Definitive result is that state is not one（1）State, then in operation S1270, control is single Member drives up focus lens according to the weave control variable calculated in infinity side（It is, driving it initial bit It sets）, and state is converted to zero in operation S1275（0）.It is, by by weave control variable（X）It is multiplied with depth of field F δ （That is, f-number（F）With the tolerable circle of confusion（δ）It is multiplied）To determine the drive volume of focus lens, and the state is converted to Zero（0）State.

When transition status, control unit carries out weave control in operation S1240 according to transformed state.

In the exemplary embodiment of this total inventive concept, due to the use of swinging operation method, therefore even when not having There is the focus operation of user, it is also possible to obtain the assessed value at three focal positions.

Figure 13 is to illustrate to calculate the flow chart of the operation of weave control variable by considering focusing state.

In operation S1305, control unit calculates the depth of field（Fδ）.

In operation S1310, value n is set as 1 by control unit, and whether is less than assessment block in operation S1315 assessments n Quantity.

If value n is more than the quantity of assessment block（For example, such as in operation S1315-N（It is no）Determining）, then control unit exist Operation S1320 sets final control variable to each piece of maximum control variable.

If value n is less than the quantity of assessment block（For example, such as in operation S1315-Y（It is）Determining）, then control unit is defeated Go out focusing state information as a result, and if such as in operation S1330-Y（It is）It is identified, data（Obtain to coke-like State information）It is incorrect, then in operation S1335, control variable can be calculated as 8F δ.

If in operation S1330-N（It is no）, determine data（The focusing state information obtained）Correctly, then it is operating S1340, control unit determine whether there is the data of the measures of dispersion about optimal focus position.

If in operation S1340-N（It is no）, the data of the measures of dispersion about optimal focus position are not present, are then operating Control variable can be calculated as 8F δ by S1335, control unit.

If in operation S1340-Y（It is）, the measures of dispersion of optimal focus position exists, then in operation S1345, control list Member can set control variable to more than twice of measures of dispersion of optimal focus position.It is, control variable is arranged to two Times weave control variable and the depth of field（Fδ）Product.

If in operation S1350-Y（It is）, set control variable is more than 8F δ, then in operation S1335, control unit Control variable can be calculated as 8F δ.

If in operation S1355-Y, set control variable is less than 4F δ, then in operation S1360, control unit can be with Control variable is calculated as 4F δ.

After calculating control variable, in operation S1365, control unit makes value n increase by 1.

Figure 14 is flow chart of the diagram by the manual focus method of the driving method of the focusing driving and Fig. 9 that swing.

With reference to figure 14, in operation S1405, control unit calculates weave control variable and MF（Manual focus）Drive volume.MF Drive volume can be manual ring 154 move focus lens 153 amount of movement or focus lens 153 since preset reference position Mobile linear range.

Control unit determines that MF operates direction whether on the direction of infinity in operation S1410.

If in operation S1410-Y（It is）, MF operation direction be determined to be on the direction of infinity, then control unit is being grasped Determine whether state is zero as S1415（0）State.Herein, state indicates the position of focus lens.Zero（0）State can be Control unit carries out the position of the focus lens before swinging operation.

If it is determined that the result is that state is zero（0）State（That is, when wobble drive starts）, then control unit operating S1420 drives up focus lens according to the weave control variable calculated in infinity side, and is operating S1425 by state Be converted to one（1）State.One（1）State can be directed towards the position of the focus lens of infinity movement.It can be in operation S1420 Pass through the weave control variable that will be calculated（X）With the depth of field（Fδ）It is multiplied to determine the drive volume of focus lens（That is, will be by controlling The amount of unit driving）, and in operation S1425, state is converted to one（1）.

If in operation S1415-N（It is no）Definitive result is that state is not zero（0）State, then in operation S1435, control is single Member determines whether state is one（1）State.

If it is a state to be state in operation S1435-Y definitive results, in operation S1440, control unit is according to institute The weave control variable of calculating twofold drives focus lens on direction of closing, and is converted to state in operation S1445 Two（2）State.Two（2）State can be the position of the focus lens moved on direction of closing.It can pass through in operation S1440 By twice of the weave control variable that is calculated（2X）With the depth of field（Fδ）It is multiplied to determine the drive volume of focus lens（That is, will be by controlling The amount of unit driving processed）, and in operation S1445, state is converted to two（2）State.

If in operation S1435-N（It is no）Definitive result is that state is not one（1）State, then in operation S1450, control is single Member drives up focus lens according to the weave control variable calculated in infinity side（It is, driving it initial bit It sets）, and state is converted into nought state in operation S1455.The weave control that will be calculated can be passed through in operation S1450 Variable（X）With the depth of field（Fδ）It is multiplied to determine the drive volume of focus lens（That is, the amount that will be driven by control unit）, and grasping Make S1445, state is converted to zero（0）.

If in operation S1410-N（It is no）, MF operations direction is determined not to be infinity direction（That is, if operation is On direction of closing）, then in operation S1460, control unit determines whether state is zero（0）State.

If it is determined that the result is that state is zero（0）State（That is, when wobble drive starts）, then in operation S1465, control Unit according to after subtracting calculated MF drive volumes in the weave control variable calculated remaining quantity in infinity Side drives up focus lens, and state is converted to one in operation S1470（1）State.Can operation S1465 by from The weave control variable that will be calculated（X）With the depth of field（Fδ）Product in subtract remaining quantity after calculated MD drive volumes To determine the drive volume of focus lens（That is, the amount that will be driven by control unit）.

If in operation S1460-N（It is no）Definitive result is not zero（0）State, then in operation S1475, control unit determines Whether state is a state.

If in operation S1475-Y（It is）Definitive result is that state is one（1）State, then in operation S1480, control is single Member on direction of closing with twice calculated weave control parameter driven focus lens, and in operation S1485 by state Be converted to two（2）State.It is, twice of the weave control variable that will be calculated can be passed through in operation S 1485（2X）With The depth of field（Fδ）It is multiplied to determine the drive volume of focus lens（That is, the amount that will be driven by control unit）.

If in operation S1475-N（It is no）Definitive result is that state is not one（1）State, then in operation S1490, control is single Member drives up focus lens and the weave control amount that is calculated as many in infinity side（It is, driving it initial Position）, and state is converted to zero in operation S1495（0）State.The swing that be calculated can be passed through in operation S1490 Control variable（X）With the depth of field（Fδ）It is multiplied to determine the drive volume of focus lens（That is, the amount that will be driven by control unit）.

When state is converted, weave control is carried out according to the state converted again in operation S1430 control units.

Using the exemplary embodiment of the total inventive concept of sheet as described above, or even when user does not focus fully （For example, it is more than predetermined amount to adjust focusing）So as to when there is the focus error of predetermined amount, swinging operation can be also carried out, from And the focus error of predetermined amount can be obtained.Thus, it is possible to obtain the assessed value at three focal positions.

Figure 15 is diagram such as the instruction operation when focus operation of the not user of determination related to the driving method of Fig. 9 Flow chart.

With reference to figure 15, control unit calculates depth of field F δ in operation S1505.

Value n is set as 1 by control unit in operation S1510, and whether is less than commenting for image in operation S1515 assessments n Estimate the quantity of block.

If in operation S1515-N（It is no）Determine that n is more than the quantity of assessment block, then control unit, which terminates, illustrates in Figure 15 Instruction operation.

If in operation S1515-Y（It is）Determine that n is less than the quantity of assessment block, then control unit exports focusing state information Result（For example, zero（0）, one（1）Or two（2）Focusing state, wherein zero（0）State is pair before executing weave control The position of zoom lens, one（1）It is before executing weave control in the position towards the focus lens moved on the direction of infinity, and Two（2）It is before executing weave control in the position towards the focus lens moved on direction of closing）, also, if such as grasping Make S1525-Y（It is）Determine that data are incorrect, then control unit is operated in operation S1530 without instruction.

If in operation S1525-N（It is no）Determine that data are correct, then control unit determines whether there is pass in operation S1530 In the data of the measures of dispersion of optimal focus position.

If operating S1530-N（It is no）It determines there is no the data of the measures of dispersion about optimal focus position, then controls list Whether member determines optimal focus position on the direction of infinity in operation S1535.If determining pinpointed focus in operation S1535-Y Position can indicate front focus on the direction of infinity.For example, in operation S1540, darkcyan can be flickered to indicate preceding coke Point.

If in operation S1535-N（It is no）Optimal focus position is determined not on the direction of infinity, then it is burnt after can indicating Point.For example, in operation S1545, avy blue can be flickered come focus after indicating.

If in operation S1530-Y（It is）It determines there are the data of the measures of dispersion about optimal focus position, then controls list Whether member determines the measures of dispersion of optimal focus position in the depth of field in operation S1550.If in operation S1550-N（It is no）It determines most The measures of dispersion of good focal position is not in the depth of field, then whether control unit determines optimal focus position unlimited in operation S1555 A distant place is upward.If in operation S1555-Y（It is）Optimal focus position can then indicate on the direction of infinity close to preceding coke Point.For example, in operation S1560, nattierblue can be flickered to indicate close to front focus.

If in operation S1555-N（It is no）Optimal focus position is determined not on the direction of infinity, then can indicate to approach Thick focus.For example, in operation S1565, pale blue can be flickered to indicate close to rear focus.

If in operation S1550-Y（It is）The measures of dispersion of optimal focus position can then indicate pinpointed focus in the depth of field Position.For example, operating（S1570）, can indicate optimal focus position with flashes yellow.

When the block about image carries out color treatments, value n is increased by 1 by control unit in operation S1575, and can be closed Color treatments are carried out in different blocks.

Figure 16 be diagram as it is related to the driving method of Fig. 9 determine there are when the focus operation of user instruction operate Flow chart.

With reference to figure 16, control unit calculates depth of field F δ in operation S1605.

Value n is set as 1 by control unit in operation S1610, and whether is less than assessment block in operation S1615 assessments n Quantity.

If in operation S1615-N（It is no）Determine that n is more than the quantity of assessment block, then control unit terminates the instruction behaviour of Figure 16 Make.

If in operation S1615-Y（It is）Determine that n is less than the quantity of assessment block, then in operation S1620, control unit output Best information as a result, and detect MF operation direction.

In operation S1625, control unit determines whether there is the data of best information.If operating S1625-Y（It is）'s Definitive result is the data there is no best information, then control unit is operated in operation S1630 without instruction.

If in S1625-N（It is no）Determine that there are the data of best information, then in operation S1635, control unit determination is The no data that there is the measures of dispersion about optimal focus position.

If in operation S1635-N（It is no）There is no the data of the measures of dispersion about optimal focus position, then control unit Determine whether the operation direction of user is calculated driving direction in operation S1640, if operating S1640-Y（It is）It determines The operation direction of user is consistent with the driving direction calculated, then control unit can indicate that operation direction has in operation S1645 Effect.For example, bottle green can indicate that operation direction is effective.

If in operation S1640-N（It is no）It determines that the operation direction of user is inconsistent with the driving direction calculated, then controls Unit processed can indicate operation anisotropy and/or incorrect in operation S1650.For example, peony can indicate operation direction It is incorrect, because it is inconsistent with the driving direction calculated.

If in operation S1635-Y（It is）It determines there are the data of the measures of dispersion about optimal focus position, then controls list Whether member determines the measures of dispersion of optimal focus position in the depth of field in operation S1655.If in operation S1655-N（It is no）Determination is poor Different amount is not in the depth of field, then control unit determines whether the operation direction of user is calculated driving direction in operation S1660, Also, if in operation S1660-Y（It is）The operation direction of user is consistent with the driving direction calculated, then control unit can be with It is effective in operation S1665 instruction operations direction.For example, light green can indicate the operation direction of user and the driving side calculated To consistent and effective.

If in operation S1660-N（It is no）It determines that the operation direction of user is inconsistent with the driving direction calculated, then controls Unit processed can indicate operation anisotropy and/or incorrect in operation S1670.For example, pale red can indicate the behaviour of user It is inconsistent with the driving direction that is calculated to make direction, therefore operates poor direction.

If in S1655-Y（It is）The data of measures of dispersion are determined in the depth of field, then can indicate best coke in operation S1675 Point position.For example, can with flashes yellow come indicate obtain optimal focus position.

After carrying out color treatments about one piece, control unit operation S1680 will value n increase by 1, and can be about Different blocks carries out color treatments.

While there has been shown and described that several embodiments of this total inventive concept, but those of ordinary skill in the art It will be understood that in the case of the principle and spirit without departing substantially from this total inventive concept, can be become in these embodiments Change, the scope of this total inventive concept is defined by appended claims and its equivalent.

Claims (13)

1. a kind of image pick up equipment, including：

Image pickup units, for carrying out reference object using filming apparatus；

Control unit, the operation mode for determining image pick up equipment, and when the operation mode of image pick up equipment is hand When dynamic focal modes, which selects to apply according to the size of the focus operation of user in a variety of focusing detection methods Focusing detection method；

Determination unit, for determining the focusing state of object using selected focusing detection method；With

User interface section is used to indicate identified focusing state,

Wherein when the size of the focus operation of user is more than predefined size, described control unit is in a variety of focusing detection methods Select manual focus operation method.

2. image pick up equipment as described in claim 1, wherein

A variety of focusing detection methods include swinging operation method, and

When there is no the focus operation of user or when focus operation is less equal than predefined size, described control unit choosing The swinging operation method is selected as focusing detection method to be applied.

3. image pick up equipment as claimed in claim 2, wherein

The determination unit converts the drive amplitude of swinging operation according to the f-number of lens unit and focusing state, and really Determine the focusing state of object.

4. image pick up equipment as claimed in claim 2, wherein

When driving zoom lens, described control unit controls the focusing state of the determination unit uncertainty plant.

5. image pick up equipment as claimed in claim 4, wherein

When driving zoom lens, described control unit controls the focusing state that the user interface section does not indicate object.

6. image pick up equipment as described in claim 1, wherein

When stopping focus lens, the driving side of focusing state and focus lens determined by the user interface section instruction To.

7. image pick up equipment as described in claim 1, wherein

When driving focus lens, the driving side of focusing state and focus lens determined by the user interface section instruction To validity.

8. image pick up equipment as described in claim 1, wherein

The determination unit calculates optimal focus position according to the focusing information at three different locations of focus lens, and counts The driving direction of calculation focus lens calculated optimal focus position to be moved to.

9. image pick up equipment as described in claim 1, further comprises：

Storage unit, for storing the image shot by image pickup units,

Wherein, when input picture, which picks up, orders, the image shot by filming apparatus is stored in described deposit by described control unit In storage unit.

10. a kind of drive control method of image pick up equipment, including：

Determine the operation mode of image pick up equipment；

If the operation mode of image pick up equipment is manual focus pattern, according to the size of the focus operation of user from a variety of Focusing detection method to be applied is selected in focusing detection method；

The focusing state of object is determined using selected focusing detection method；With

Focusing state determined by instruction,

Wherein when the size of the focus operation of user is more than predefined size, selection focusing detection method is included in a variety of focusing inspections Manual focus operation method is selected in survey method.

11. drive control method as claimed in claim 10, wherein

A variety of focusing detection methods include swinging operation method, and

When there is no the focus operation of user or when focus operation is less than or equal to predefined size, the swing behaviour is selected Make method as focusing detection method to be applied.

12. drive control method as claimed in claim 11, wherein

The swinging operation converts its drive amplitude according to the f-number of lens unit and focusing state.

13. drive control method as claimed in claim 10, wherein

The determining focusing state includes：Pinpointed focus position is calculated using the focusing information at three different locations of focus lens It sets, and calculates the driving direction of focus lens to be moved to calculated optimal focus position.